RS / Reliance, Inc. - Документы SEC, Годовой отчет, Доверенное заявление

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 14, 2025 RELIANCE, INC. (E

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 14, 2025 RELIANCE, INC. (Exact name of registrant as specified in its charter) Delaware 001-13122 95-1142616 (State or other jurisdiction of incorporation) (Commission File Num

TERM LOAN AGREEMENT Dated as of August 14, 2025 RELIANCE, INC., as Borrower, BANK OF AMERICA, N.A., as Administrative Agent WELLS FARGO BANK, NATIONAL ASSOCIATION, PNC BANK, NATIONAL ASSOCIATION U.S. BANK NATIONAL ASSOCIATION, as Co-Syndication Agent

Exhibit 10.1 Execution Version Published Deal CUSIP Number: 75946YAA2 Term Loan CUSIP Number: 75946YAB0 TERM LOAN AGREEMENT Dated as of August 14, 2025 among RELIANCE, INC., as Borrower, BANK OF AMERICA, N.A., as Administrative Agent WELLS FARGO BANK, NATIONAL ASSOCIATION, PNC BANK, NATIONAL ASSOCIATION and U.S. BANK NATIONAL ASSOCIATION, as Co-Syndication Agents, JPMORGAN CHASE BANK, N.A., as Doc

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2025 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number: 00

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): July 23, 2025 RELIANCE, INC. (Exa

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): July 23, 2025 RELIANCE, INC. (Exact name of registrant as specified in its charter) Delaware 001-13122 95-1142616 (State or Other Jurisdiction of Incorporation) (Commission File Numbe

Reliance, Inc. Reports Second Quarter 2025 Financial Results – Net sales of $3.66 billion with record second-quarter tons sold, up 4.0% year-over-year – Strong non-GAAP gross profit margin of 29.9% – Pretax income of $304.3 million increased 16% from

EXHIBIT 99.1 Reliance, Inc. Reports Second Quarter 2025 Financial Results – Net sales of $3.66 billion with record second-quarter tons sold, up 4.0% year-over-year – Strong non-GAAP gross profit margin of 29.9% – Pretax income of $304.3 million increased 16% from Q1 2025 – EPS of $4.42; non-GAAP EPS of $4.43 up 18% from Q1 2025 – Repurchased $79.9 million of common stock SCOTTSDALE, Ariz., July 23

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 11-K

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 11-K (Mark One) ⌧ ANNUAL REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2024 OR ◻ TRANSITION REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number: 001-13122 A. Full

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 11-K

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 11-K (Mark One) ⌧ ANNUAL REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2024 OR ◻ TRANSITION REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number: 001-13122 A. Full

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 21, 2025 RELIANCE, INC. (Exac

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 21, 2025 RELIANCE, INC. (Exact name of registrant as specified in its charter) Delaware 001-13122 95-1142616 (State or other jurisdiction of incorporation) (Commission File Number

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM SD Specialized Disclosure Report RELIANCE, INC. (Exact name of registrant as specified in its charter)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM SD Specialized Disclosure Report RELIANCE, INC. (Exact name of registrant as specified in its charter) Delaware 001-13122 95-1142616 (State or other jurisdiction of incorporation or organization) (Commission File Number) (I.R.S. Employer Identification No.) 16100 N. 71st Street, Suite 400 Scottsdale, Arizona 85254 (Addres

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2025 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number: 0

Reliance, Inc. Reports First Quarter 2025 Financial Results -- Net sales of $3.48 billion with record tons sold, up 9.0% year-over-year (same-store tons sold up 5.6%) -- Strong gross profit margin of 29.7% -- EPS of $3.74; non-GAAP EPS of $3.77 -- Re

EXHIBIT 99.1 Reliance, Inc. Reports First Quarter 2025 Financial Results - Net sales of $3.48 billion with record tons sold, up 9.0% year-over-year (same-store tons sold up 5.6%) - Strong gross profit margin of 29.7% - EPS of $3.74; non-GAAP EPS of $3.77 - Repurchased $253.2 million of common stock SCOTTSDALE, Ariz., April 23, 2025 (GLOBE NEWSWIRE) - Reliance, Inc. (NYSE: RS) today reported its fi

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): April 23, 2025 RELIANCE, INC. (Exact name of registrant as specified in its charter) Delaware 001-13122 95-1142616 (State or Other Jurisdiction of Incorporation) (Commission File Numb

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No.      )

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No.      ) Filed by the Registrant x Filed by a Party other than the Registrant ¨ Check the appropriate box: ¨ Preliminary Proxy Statement ¨ Confidential, for Use of the Commission Only (as permitted by Rule 14a

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No.      )

TABLE OF CONTENTS UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No.      ) Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as per

Subsidiaries of Registrant.

EXHIBIT 21 The Company’s principal affiliates are listed below. All other affiliates, if considered in the aggregate as a single affiliate, would not constitute a significant subsidiary. SUBSIDIARIES OF REGISTRANT (As of February 27, 2025) Admiral Metals Servicenter Company, Incorporated, a Massachusetts corporation Acero Prime, S. de R.L. de C.V., a limited liability company formed under the laws

Registrant’s Third Amendment to Deferred Compensation Plan dated as of July 24, 2023.

EXHIBIT 10.13 THIRD AMENDMENT TO THE RELIANCE STEEL & ALUMINUM CO. DEFERRED COMPENSATION PLAN (Amended and Restated Effective January 1, 2013) THIS THIRD AMENDMENT (the “Amendment”) to the Reliance Steel & Aluminum Co. Deferred Compensation Plan, as amended from time to time (the “Plan”) is made as of July 24, 2023. WHEREAS, Reliance Steel & Aluminum Co. (the “Company”) maintains the Plan to provi

Registrant’s Insider Trading and Securities Compliance Policy

Exhibit 19 Reliance, INC. Insider Trading and Securities Compliance Policy Purpose This Insider Trading and Securities Compliance Policy (the "Policy") provides guidelines with respect to transactions in the securities of Reliance, Inc. (the "Company" or “Reliance”) and the handling of confidential information about the Company and the companies with which the Company does business. The Company's

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K (Mark One) ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2024 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number: 001-13

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 19, 2025 RELIANCE, INC. (Exact name of registrant as specified in its charter) Delaware 001-13122 95-1142616 (State or Other Jurisdiction of Incorporation) (Commission File N

Reliance, Inc. Reports Fourth Quarter and Full Year 2024 Financial Results - Third highest annual cash flow from operations of $1.43 billion - Repurchased record $1.09 billion of common stock in 2024; outstanding shares down 6% - Annual net sales of

EXHIBIT 99.1 Reliance, Inc. Reports Fourth Quarter and Full Year 2024 Financial Results - Third highest annual cash flow from operations of $1.43 billion - Repurchased record $1.09 billion of common stock in 2024; outstanding shares down 6% - Annual net sales of $13.84 billion with tons sold up 4.0% (same-store tons sold up 1.0%) - Strong annual gross profit margin of 29.7% - Annual EPS of $15.56;

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): December 17, 2024 RELIANCE, INC. (Exact name of registrant as specified in its charter) Delaware 001-13122 95-1142616 (State or other jurisdiction of incorporation) (Commission File N

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2024 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file numbe

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): October 24, 2024 RELIANCE, INC. (Exact name of registrant as specified in its charter) Delaware 001-13122 95-1142616 (State or Other Jurisdiction of Incorporation) (Commission File Nu

Reliance, Inc. Reports Third Quarter 2024 Financial Results — Net sales of $3.42 billion with tons sold up 7.1% from Q3 2023 — Gross profit margin of 29.4% — EPS of $3.61, non-GAAP EPS of $3.64 — Cash flow from operations of $463.9 million — Share re

EXHIBIT 99.1 Reliance, Inc. Reports Third Quarter 2024 Financial Results — Net sales of $3.42 billion with tons sold up 7.1% from Q3 2023 — Gross profit margin of 29.4% — EPS of $3.61, non-GAAP EPS of $3.64 — Cash flow from operations of $463.9 million — Share repurchases of $432.0 million reduced outstanding shares by 3%; replenished existing share repurchase program to $1.5 billion — Amended and

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): October 1, 2024 RELIANCE, INC. (Exact name of registrant as specified in its charter) Delaware 001-13122 95-1142616 (State or other jurisdiction of incorporation) (Commission File Num

RELIANCE, INC. ANNOUNCES APPOINTMENT OF JAMES K. Kamsickas TO bOARD OF DIRECTORS and Douglas W. Stotlar As CHairman of the board

Exhibit 99.1 RELIANCE, INC. ANNOUNCES APPOINTMENT OF JAMES K. Kamsickas TO bOARD OF DIRECTORS and Douglas W. Stotlar As CHairman of the board SCOTTSDALE, AZ— October 2, 2024—Reliance, Inc. (NYSE: RS) today announced the appointment of James K. Kamsickas, 57, to serve as an independent director. Mr. Kamsickas’ term took effect on October 1, 2024 and will expire at the Company’s 2025 Annual Meeting

Entry into a Material Definitive Agreement, Financial Statements and Exhibits, Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): September 10, 2024 RELIANCE, INC. (Exact name of registrant as specified in its charter) Delaware 001-13122 95-1142616 (State or other jurisdiction of incorporation) (Commission File

Second Amended and Restated Credit Agreement dated as of September 10, 2024, among Reliance, Inc., as Borrower, Bank of America N.A., as the Administrative Agent, JPMorgan Chase Bank, N.A. and Wells Fargo Bank, National Association, as Co-Syndication Agents, PNC Bank, National Association and Toronto-Dominion Bank, New York Branch, as Co-Documentation Agents, and the other lenders party thereto.

Exhibit 10.1 Execution Version Published Deal CUSIP Number: 759510AU4 USD Revolver CUSIP Number: 759510AV2 MUL Revolver CUSIP Number: 759510AW0 SECOND AMENDED AND RESTATED CREDIT AGREEMENT Dated as of September 10, 2024 among RELIANCE, INC., as Borrower, BANK OF AMERICA, N.A., as Administrative Agent, Issuing Lender and Swing Line Lender, JPMORGAN CHASE BANK, N.A. and WELLS FARGO BANK, NATIONAL AS

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2024 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number: 00

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): July 25, 2024 RELIANCE, INC. (Exa

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): July 25, 2024 RELIANCE, INC. (Exact name of registrant as specified in its charter) Delaware 001-13122 95-1142616 (State or Other Jurisdiction of Incorporation) (Commission File Numbe

Reliance, Inc. Reports Second Quarter 2024 Financial Results - Net sales of $3.64 billion with tons sold up 4.0% from Q1 2024 - Gross profit margin of 29.8% - EPS of $4.67, non-GAAP EPS of $4.65 - Cash flow from operations of $366.3 million - $519.3

EXHIBIT 99.1 Reliance, Inc. Reports Second Quarter 2024 Financial Results - Net sales of $3.64 billion with tons sold up 4.0% from Q1 2024 - Gross profit margin of 29.8% - EPS of $4.67, non-GAAP EPS of $4.65 - Cash flow from operations of $366.3 million - $519.3 million of share repurchases in Q2 and $165.4 million in July - Completed acquisition of American Alloy Steel, Inc. on April 1, 2024 - Co

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 11-K

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 11-K (Mark One) ⌧ ANNUAL REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2023 OR ◻ TRANSITION REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number: 001-13122 A. Full

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 11-K

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 11-K (Mark One) ⌧ ANNUAL REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2023 OR ◻ TRANSITION REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number: 001-13122 A. Full

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM SD Specialized Disclosure Report RELIANCE, INC. (Exact name of registrant as specified in its charter)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM SD Specialized Disclosure Report RELIANCE, INC. (Exact name of registrant as specified in its charter) Delaware 001-13122 95-1142616 (State or other jurisdiction of incorporation or organization) (Commission File Number) (I.R.S. Employer Identification No.) 16100 N. 71st Street, Suite 400 Scottsdale, Arizona 85254 (Addres

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Submission of Matters to a Vote of Security Holders, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 15, 2024 RELIANCE, INC. (Exact name of registrant as specified in its charter) Delaware 001-13122 95-1142616 (State or other jurisdiction of incorporation) (Commission File Number

Amendment No. 2 to the Reliance, Inc. Second Amended and Restated 2015 Incentive Award Plan

Exhibit 10.1 AMENDMENT NO. 2 TO SECOND AMENDED AND RESTATED 2015 INCENTIVE AWARD PLAN This Amendment No. 2 (“Amendment”) to the Reliance, Inc. Second Amended and Restated 2015 Incentive Award (“Plan”) is adopted by the Board of Directors of Reliance, Inc., a Delaware corporation (the “Company”), to be effective as of May 15, 2024, subject to receiving the approval of the shareholders at the Compan

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2024 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number: 0

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): April 25, 2024 RELIANCE, INC. (Ex

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): April 25, 2024 RELIANCE, INC. (Exact name of registrant as specified in its charter) Delaware 001-13122 95-1142616 (State or Other Jurisdiction of Incorporation) (Commission File Numb

Reliance, Inc. Reports First Quarter 2024 Financial Results – Net sales of $3.64 billion with tons sold up 10.3% from fourth quarter of 2023 – Gross profit margin of 31.0% – EPS of $5.23, non-GAAP EPS of $5.30 – Completed acquisition of Cooksey Iron

EXHIBIT 99.1 Reliance, Inc. Reports First Quarter 2024 Financial Results – Net sales of $3.64 billion with tons sold up 10.3% from fourth quarter of 2023 – Gross profit margin of 31.0% – EPS of $5.23, non-GAAP EPS of $5.30 – Completed acquisition of Cooksey Iron & Metal Company on February 1, 2024 – Completed acquisition of American Alloy Steel, Inc. on April 1, 2024 – Completed acquisition of Mid

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No.      )

TABLE OF CONTENTS UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No.      ) Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as per

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No.      )

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No.      ) Filed by the Registrant x Filed by a Party other than the Registrant ¨ Check the appropriate box: ¨ Preliminary Proxy Statement ¨ Confidential, for Use of the Commission Only (as permitted by Rule 14a

Subsidiaries of Registrant.

EXHIBIT 21 The Company’s principal affiliates are listed below. All other affiliates, if considered in the aggregate as a single affiliate, would not constitute a significant subsidiary. SUBSIDIARIES OF REGISTRANT (As of February 29, 2024) Admiral Metals Servicenter Company, Incorporated, a Massachusetts corporation Acero Prime, S. de R.L. de C.V., a limited liability company formed under the laws

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K (Mark One) ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2023 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number: 001-13

Registrant’s Amended and Restated Compensation Recovery Policy.

Exhibit 97.1 RELIANCE STEEL & ALUMINUM CO. Amended & Restated Compensation Recovery Policy This Policy shall apply to any Incentive Compensation received on or after October 2, 2023. This Policy amends, restates and supersedes any prior corporate policy addressing recoupment of compensation from corporate officers following an Accounting Restatement. Statement of Policy Subject to the exceptions s

Registrant’s Amended and Restated Bylaws.

Exhibit 3.2 AMENDED AND RESTATED BYLAWS OF RELIANCE, INC. ARTICLE I Meetings of Stockholders Section 1.1. Annual Meetings. If required by applicable law, an annual meeting of stockholders shall be held for the election of directors at such date, time and place, if any, either within or without the State of Delaware, as may be designated by resolution of the Board of Directors from time to time. An

Certificate of Amendment to Registrant’s Restated Certificate of Incorporation, dated February 14, 2024.

Exhibit 3.1 CERTIFICATE OF AMENDMENT TO RESTATED CERTIFICATE OF INCORPORATION OF RELIANCE STEEL & ALUMINUM CO. (Pursuant to Section 242 of the General Corporation Law of the State of Delaware) Reliance Steel & Aluminum Co., a corporation duly organized and existing under and by virtue of the General Corporation Law of the State of Delaware (the “Corporation”), does hereby certify as follows: FIRST

Amendments to Articles of Incorporation or Bylaws; Change in Fiscal Year, Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 14, 2024 RELIANCE, INC. (Exact name of registrant as specified in its charter) Delaware 001-13122 95-1142616 (State or other jurisdiction of incorporation) (Commission File N

Reliance, Inc. Reports Fourth Quarter and Full Year 2023 Financial Results and Unveils Corporate Rebranding − Second highest annual EPS of $22.64; fourth quarter EPS of $4.70 − Second highest annual cash flow from operations of $1.67 billion − Repurc

Exhibit 99.1 Reliance, Inc. Reports Fourth Quarter and Full Year 2023 Financial Results and Unveils Corporate Rebranding − Second highest annual EPS of $22.64; fourth quarter EPS of $4.70 − Second highest annual cash flow from operations of $1.67 billion − Repurchased $479.5 million of common stock in 2023 − Increased quarterly dividend 10.0% to $1.10 per share (annual: $4.40) − Completed acquisit

RS / Reliance Steel & Aluminum Co. / VANGUARD GROUP INC - SCHEDULE 13G/A Passive Investment

SC 13G/A 1 tv01805-reliancesteelaluminu.htm SCHEDULE 13G/A SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 11)* Name of issuer: Reliance Steel & Aluminum Co Title of Class of Securities: Common Stock CUSIP Number: 759509102 Date of Event Which Requires Filing of this Statement: December 29, 2023 Check the appropriate

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2023 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file numbe

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): October 24, 2023 RELIANCE STEEL & ALUMINUM CO. (Exact name of registrant as specified in its charter) Delaware 001-13122 95-1142616 (State or Other Jurisdiction of Incorporation) (Com

Reliance Steel & Aluminum Co. Reports Third Quarter 2023 Financial Results – Net sales of $3.62 billion with tons sold up 1.1% from Q3 2022 – Gross profit margin of 29.7% – EPS of $4.99; non-GAAP EPS of $5.00 – Cash flow from operations of $466.0 mil

EXHIBIT 99.1 Reliance Steel & Aluminum Co. Reports Third Quarter 2023 Financial Results – Net sales of $3.62 billion with tons sold up 1.1% from Q3 2022 – Gross profit margin of 29.7% – EPS of $4.99; non-GAAP EPS of $5.00 – Cash flow from operations of $466.0 million – Repurchased $126.4 million of common stock – Replenished existing share repurchase program to $1.5 billion SCOTTSDALE, Ariz., Oct.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2023 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number: 00

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): July 27, 2023 RELIANCE STEEL & ALUMINUM CO. (Exact name of registrant as specified in its charter) Delaware 001-13122 95-1142616 (State or Other Jurisdiction of Incorporation) (Commis

Reliance Steel & Aluminum Co. Reports Second Quarter 2023 Financial Results · Net sales of $3.88 billion with tons sold up 1.9% from Q2 2022 · Strong gross profit margin of 31.5% · EPS of $6.49 · Cash flow from operations of $295.1 million · Repurcha

EXHIBIT 99.1 Reliance Steel & Aluminum Co. Reports Second Quarter 2023 Financial Results · Net sales of $3.88 billion with tons sold up 1.9% from Q2 2022 · Strong gross profit margin of 31.5% · EPS of $6.49 · Cash flow from operations of $295.1 million · Repurchased $73.9 million of common stock · Completed acquisition of Southern Steel Supply, LLC on May 1, 2023 SCOTTSDALE, Ariz., July 27, 2023 (

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 11-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 11-K (Mark One) ⌧ ANNUAL REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2022 OR ◻ TRANSITION REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number: 001-13122 A. Full title of the plan

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 11-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 11-K (Mark One) ⌧ ANNUAL REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2022 OR ◻ TRANSITION REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number: 001-13122 A. Full title of the plan

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM SD Specialized Disclosure Report RELIANCE STEEL & ALUMINUM CO. (Exact name of registrant as specified in its charter)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM SD Specialized Disclosure Report RELIANCE STEEL & ALUMINUM CO. (Exact name of registrant as specified in its charter) Delaware 001-13122 95-1142616 (State or other jurisdiction of incorporation or organization) (Commission File Number) (I.R.S. Employer Identification No.) 16100 N. 71st Street, Suite 400 Scottsdale, Arizon

Submission of Matters to a Vote of Security Holders

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 17, 2023 RELIANCE STEEL & ALUMINUM CO. (Exact name of registrant as specified in its charter) Delaware 001-13122 95-1142616 (State or other jurisdiction of incorporation) (Commiss

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2023 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number: 0

Registrant’s Second Amendment to Deferred Compensation Plan (Amended and Restated Effective January 1, 2013) dated as of February 14, 2023

Exhibit 10.1 Execution Version SECOND AMENDMENT TO THE RELIANCE STEEL & ALUMINUM CO. DEFERRED COMPENSATION PLAN (Amended and Restated Effective January 1, 2013) THIS SECOND AMENDMENT (the “Amendment”) to the Reliance Steel & Aluminum Co. Deferred Compensation Plan, as amended from time to time (the “Plan”) is made as of February 14, 2023. WHEREAS, Reliance Steel & Aluminum Co. (the “Company”) main

Reliance Steel & Aluminum Co. Reports First Quarter 2023 Financial Results - Net sales of $3.97 billion with tons sold up 17.7% from Q4 2022 - Strong gross profit margin of 30.9% and pretax income margin of 12.8% - EPS of $6.43; non-GAAP EPS of $6.37

EXHIBIT 99.1 Reliance Steel & Aluminum Co. Reports First Quarter 2023 Financial Results - Net sales of $3.97 billion with tons sold up 17.7% from Q4 2022 - Strong gross profit margin of 30.9% and pretax income margin of 12.8% - EPS of $6.43; non-GAAP EPS of $6.37 - Cash flow from operations of $384.6 million - Repurchased $38.9 million of common stock SCOTTSDALE, Ariz., April 27, 2023 (GLOBE NEWSW

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): April 27, 2023 RELIANCE STEEL & ALUMINUM CO. (Exact name of registrant as specified in its charter) Delaware 001-13122 95-1142616 (State or Other Jurisdiction of Incorporation) (Commi

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No.   )

TABLE OF CONTENTS UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No.   ) Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as permit

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No.      )

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No.      ) Filed by the Registrant x Filed by a Party other than the Registrant ¨ Check the appropriate box: ¨ Preliminary Proxy Statement ¨ Confidential, for Use of the Commission Only (as permitted by Rule 14a

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K (Mark One) ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2022 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number: 001-13

Subsidiaries of Registrant.

EXHIBIT 21 The Company’s principal affiliates are listed below. All other affiliates, if considered in the aggregate as a single affiliate, would not constitute a significant subsidiary. SUBSIDIARIES OF REGISTRANT (As of February 28, 2023) Admiral Metals Servicenter Company, Incorporated, a Massachusetts corporation Acero Prime, S. de R.L. de C.V., a limited liability company formed under the laws

Amendment No.1 dated as of January 12, 2023 to Amended and Restated Credit Agreement dated as of September 3, 2020, among Reliance Steel & Aluminum Co., as Borrower, Bank of America N.A., as the Administrative Agent, and each of the lenders party thereto.

Exhibit 10.12 Execution Version AMENDMENT NO. 1 TO AMENDED AND RESTATED CREDIT AGREEMENT THIS AMENDMENT NO. 1 TO AMENDED AND RESTATED CREDIT AGREEMENT dated as of January 12, 2023 (this “Amendment”), is among RELIANCE STEEL & ALUMINUM CO., a Delaware corporation (the “Borrower”), BANK OF AMERICA, N.A., in its capacity as the administrative agent (in such capacity, the “Administrative Agent”), and

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 14, 2023 RELIANCE STEEL & ALUMINUM CO. (Exact name of registrant as specified in its charter) Delaware 001-13122 95-1142616 (State or Other Jurisdiction of Incorporation) (Co

Reliance Steel & Aluminum Co. Reports Fourth Quarter and Full Year 2022 Financial Results - Record annual net sales of $17.03 billion increased 20.8% - Record annual pretax income of $2.43 billion and pretax income margin of 14.3% - Record annual EPS

EXHIBIT 99.1 Reliance Steel & Aluminum Co. Reports Fourth Quarter and Full Year 2022 Financial Results - Record annual net sales of $17.03 billion increased 20.8% - Record annual pretax income of $2.43 billion and pretax income margin of 14.3% - Record annual EPS of $29.92; non-GAAP EPS of $30.03 - Record quarterly and annual cash flow from operations of $808.7 million and $2.12 billion - Repurcha

RS / Reliance Steel & Aluminum Co / VANGUARD GROUP INC - SCHEDULE 13G/A Passive Investment

SC 13G/A 1 tv01778-reliancesteelaluminu.htm SCHEDULE 13G/A SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 10)* Name of issuer: Reliance Steel & Aluminum Co. Title of Class of Securities: Common Stock CUSIP Number: 759509102 Date of Event Which Requires Filing of this Statement: December 30, 2022 Check the appropriate

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): January 15, 2023 RELIANCE STEEL &

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): January 15, 2023 RELIANCE STEEL & ALUMINUM CO. (Exact name of registrant as specified in its charter) Delaware 001-13122 95-1142616 (State or other jurisdiction of incorporation) (Com

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

Table of Contents ? UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

Reliance Steel & Aluminum Co. Reports Third Quarter 2022 Financial Results - Quarterly net sales of $4.25 billion increased 10.4% year-over-year - Strong quarterly EPS of $6.45; non-GAAP EPS of $6.48 - Record first nine months EPS of $23.98 - Record

EXHIBIT 99.1 Reliance Steel & Aluminum Co. Reports Third Quarter 2022 Financial Results - Quarterly net sales of $4.25 billion increased 10.4% year-over-year - Strong quarterly EPS of $6.45; non-GAAP EPS of $6.48 - Record first nine months EPS of $23.98 - Record quarterly and first nine months cash flow from operations of $635.7 million and $1.31 billion - Repurchased approximately 1.9 million com

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): October 27, 2022 RELIANCE STEEL &

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): October 27, 2022 RELIANCE STEEL & ALUMINUM CO. (Exact name of registrant as specified in its charter) Delaware 001-13122 95-1142616 (State or Other Jurisdiction of Incorporation) (Com

Reliance Steel Announces EXECUTIVE Leadership Succession; KARLA R. LEWIS TO SUCCEED JAMES D. HOFFMAN AS CHIEF EXECUTIVE OFFICER IN JANUARY 2023

Exhibit 99.1 Reliance Steel Announces EXECUTIVE Leadership Succession; KARLA R. LEWIS TO SUCCEED JAMES D. HOFFMAN AS CHIEF EXECUTIVE OFFICER IN JANUARY 2023 SCOTTSDALE, AZ, October 11, 2022 - Reliance Steel & Aluminum Co. (NYSE: RS) today announced that James D. Hoffman has announced his intention to step down as Chief Executive Officer on December 31, 2022 and, further, that the company?s Board o

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): October 5, 2022 RELIANCE STEEL & ALUMINUM CO. (Exact name of registrant as specified in its charter) Delaware 001-13122 95-1142616 (State or other jurisdiction of incorporation) (Comm

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

Table of Contents ? UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

Reliance Steel & Aluminum Co. Reports Second Quarter 2022 Financial Results - Record quarterly sales of $4.68 billion - Record quarterly gross profit of $1.50 billion driven by strong gross profit margin of 31.9% - Record quarterly pretax income of $

EXHIBIT 99.1 Reliance Steel & Aluminum Co. Reports Second Quarter 2022 Financial Results - Record quarterly sales of $4.68 billion - Record quarterly gross profit of $1.50 billion driven by strong gross profit margin of 31.9% - Record quarterly pretax income of $762.6 million and margin of 16.3% - Record quarterly EPS of $9.15 - Repurchased ~1.1 million common shares for a total of $193.9 million

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): July 28, 2022 RELIANCE STEEL & ALUMINUM CO. (Exact name of registrant as specified in its charter) Delaware 001-13122 95-1142616 (State or Other Jurisdiction of Incorporation) (Commis

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 11-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 11-K (Mark One) ? ? ? ANNUAL REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 ? For the fiscal year ended December 31, 2021 OR ? ? ? TRANSITION REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 ? For the transition period from to Commission file number: 001-13122 A. Full title

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 11-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 11-K (Mark One) ? ? ? ANNUAL REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 ? For the fiscal year ended December 31, 2021 OR ? ? ? TRANSITION REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 ? For the transition period from to Commission file number: 001-13122 A. Full title

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM SD Specialized Disclosure Report RELIANCE STEEL & ALUMINUM CO. (Exact name of registrant as specified in its charter)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM SD Specialized Disclosure Report RELIANCE STEEL & ALUMINUM CO. (Exact name of registrant as specified in its charter) Delaware 001-13122 95-1142616 (State or other jurisdiction of incorporation or organization) (Commission File Number) (I.R.S. Employer Identification No.) 350 S. Grand Ave., Suite 5100 Los Angeles, CA 9007

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits, Submission of Matters to a Vote of Security Holders

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 18, 2022 RELIANCE STEEL & ALUMINUM CO. (Exact name of registrant as specified in its charter) Delaware 001-13122 95-1142616 (State or other jurisdiction of incorporation) (Commiss

Reliance Steel & Aluminum Co. Announces Executive Officer Retirement and Promotions

Exhibit 99.1 NEWS RELEASE FOR IMMEDIATE RELEASE Reliance Steel & Aluminum Co. Announces Executive Officer Retirement and Promotions ? Michael P. Shanley retiring as Senior Vice President, Operations ? Stephen P. Koch promoted to Executive Vice President and Chief Operating Officer ? Michael R. Hynes promoted to Senior Vice President, Operations Los Angeles? May 19, 2022 ?Reliance Steel & Aluminum

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2022 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number: 0

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): April 28, 2022 RELIANCE STEEL & ALUMINUM CO. (Exact name of registrant as specified in its charter) Delaware 001-13122 95-1142616 (State or Other Jurisdiction of Incorporation) (Commi

Reliance Steel & Aluminum Co. Reports First Quarter 2022 Financial Results - Record quarterly sales of $4.49 billion, tons sold up 10.7% from Q4 2021 - Record quarterly gross profit of $1.39 billion driven by strong gross profit margin of 30.9% - Rec

EXHIBIT 99.1 Reliance Steel & Aluminum Co. Reports First Quarter 2022 Financial Results - Record quarterly sales of $4.49 billion, tons sold up 10.7% from Q4 2021 - Record quarterly gross profit of $1.39 billion driven by strong gross profit margin of 30.9% - Record quarterly pretax income of $697.2 million and margin of 15.5% - Record quarterly EPS of $8.33, non-GAAP EPS of $8.42 - Record first q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No.      )

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No.??????) Filed by the Registrant x Filed by a Party other than the Registrant ? Check the appropriate box: ? Preliminary Proxy Statement ? Confidential, for Use of the Commission Only (as permitted by Rule 14a

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No.      )

TABLE OF CONTENTS UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No.??????) Filed by the Registrant ? Filed by a Party other than the Registrant ? Check the appropriate box: ? Preliminary Proxy Statement ? ? Confidential, for Use of the Commission Only (as p

Subsidiaries of Registrant.

EXHIBIT 21 The Company?s principal affiliates are listed below. All other affiliates, if considered in the aggregate as a single affiliate, would not constitute a significant subsidiary. SUBSIDIARIES OF REGISTRANT (As of February 24, 2022) Admiral Metals Servicenter Company, Incorporated., a Massachusetts corporation Acero Prime, S. de R.L. de C.V., a limited liability company formed under the law

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K

Table of Contents ? UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

Reliance Steel & Aluminum Co. Reports Fourth Quarter and Full Year 2021 Financial Results - Record annual net sales of $14.09 billion - Record annual gross profit of $4.49 billion driven by record annual gross profit margin of 31.9% - Record annual p

EXHIBIT 99.1 Reliance Steel & Aluminum Co. Reports Fourth Quarter and Full Year 2021 Financial Results - Record annual net sales of $14.09 billion - Record annual gross profit of $4.49 billion driven by record annual gross profit margin of 31.9% - Record annual pretax income and margin of $1.88 billion and 13.4% - Record annual EPS of $21.97, non-GAAP EPS of $22.12 - Record quarterly EPS of $6.64,

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 17, 2022 RELIANCE STEEL & ALUMINUM CO. (Exact name of registrant as specified in its charter) Delaware 001-13122 95-1142616 (State or Other Jurisdiction of Incorporation) (Co

RS / Reliance Steel & Aluminum Co / VANGUARD GROUP INC - SCHEDULE 13G/A Passive Investment

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 9)* Name of issuer: Reliance Steel & Aluminum Co. Title of Class of Securities: Common Stock CUSIP Number: 759509102 Date of Event Which Requires Filing of this Statement: December 31, 2021 Check the appropriate box to designate the rule pursuant to which this Schedule i

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

Table of Contents ? UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

Reliance Steel & Aluminum Co. Reports Record Third Quarter 2021 Financial Results - Record quarterly net sales of $3.85 billion - Record quarterly gross profit of $1.21 billion driven by strong gross profit margin of 31.5% - LIFO expense of $262.5 mi

EX-99.1 2 exh991.htm PRESS RELEASE EXHIBIT 99.1 Reliance Steel & Aluminum Co. Reports Record Third Quarter 2021 Financial Results - Record quarterly net sales of $3.85 billion - Record quarterly gross profit of $1.21 billion driven by strong gross profit margin of 31.5% - LIFO expense of $262.5 million or $3.06 per diluted share - Record quarterly pretax income of $532.6 million and record pretax

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): October 28, 2021 RELIANCE STEEL & ALUMINUM CO. (Exact name of registrant as specified in its charter) Delaware 001-13122 95-1142616 (State or Other Jurisdiction of Incorporation) (Com

RELIANCE STEEL & ALUMINUM CO. ANNOUNCES APPOINTMENT OF FRANK J. DELLAQUILA TO bOARD OF DIRECTORS

Exhibit 99.1 NEWS RELEASE FOR IMMEDIATE RELEASE RELIANCE STEEL & ALUMINUM CO. ANNOUNCES APPOINTMENT OF FRANK J. DELLAQUILA TO bOARD OF DIRECTORS Los Angeles? October 6, 2021?Reliance Steel & Aluminum Co. (NYSE: RS) today announced the appointment of Frank J. Dellaquila, 64, to serve as an independent director. Mr. Dellaquila?s term took effect on October 5, 2021 and will expire at the 2022 Annual

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): October 5, 2021 RELIANCE STEEL & ALUMINUM CO. (Exact name of registrant as specified in its charter) Delaware 001-13122 95-1142616 (State or Other Jurisdiction of Incorporation) (Comm

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

Table of Contents ? UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): July 20, 2021 RELIANCE STEEL & ALUMINUM CO. (Exact name of registrant as specified in its charter) Delaware 001-13122 95-1142616 (State or Other Jurisdiction of Incorporation) (Commis

RELIANCE STEEL & ALUMINUM CO. ANNOUNCES New Director

Exhibit 99.1 NEWS RELEASE FOR IMMEDIATE RELEASE RELIANCE STEEL & ALUMINUM CO. ANNOUNCES New Director Los Angeles? July 23, 2021?Reliance Steel & Aluminum Co. (NYSE: RS) today announced that it has increased the size of its Board of Directors from 10 to 11 members and appointed David W. Seeger, 65, to serve as an independent director. Mr. Seeger?s term took effect on July 20, 2021 and will expire a

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): July 22, 2021 RELIANCE STEEL & ALUMINUM CO. (Exact name of registrant as specified in its charter) Delaware 001-13122 95-1142616 (State or Other Jurisdiction of Incorporation) (Commis

Reliance Steel & Aluminum Co. Reports Record Second Quarter 2021 Financial Results · Record quarterly net sales of $3.42 billion · Record quarterly gross profit of $1.08 billion driven by strong gross profit margin of 31.7% · Record quarterly pretax

EXHIBIT 99.1 Reliance Steel & Aluminum Co. Reports Record Second Quarter 2021 Financial Results ? Record quarterly net sales of $3.42 billion ? Record quarterly gross profit of $1.08 billion driven by strong gross profit margin of 31.7% ? Record quarterly pretax income of $444.1 million and record pretax income margin of 13.0% ? Record quarterly EPS of $5.08 ? Increased existing share repurchase p

RELIANCE STEEL & ALUMINUM CO. ANNOUNCES Executive OFFICER Retirement and promotions − William K. Sales retiring as Executive Vice President, Operations − Sean M. Mollins promoted to Senior Vice President, Operations − Brian Yamaguchi promoted to Vice

Exhibit 99.1 NEWS RELEASE FOR IMMEDIATE RELEASE RELIANCE STEEL & ALUMINUM CO. ANNOUNCES Executive OFFICER Retirement and promotions ? William K. Sales retiring as Executive Vice President, Operations ? Sean M. Mollins promoted to Senior Vice President, Operations ? Brian Yamaguchi promoted to Vice President, Supplier Development Los Angeles? July 1, 2021?Reliance Steel & Aluminum Co. (NYSE: RS) to

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): June 28, 2021 RELIANCE STEEL & ALUMINUM CO. (Exact name of registrant as specified in its charter) Delaware 001-13122 95-1142616 (State or Other Jurisdiction of Incorporation) (Commis

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 11-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 11-K (Mark One) ? ? ? ANNUAL REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 ? For the fiscal year ended December 31, 2020 OR ? ? ? TRANSITION REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 ? For the transition period from to Commission file number: 001-13122 A. Full title

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 11-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 11-K (Mark One) ? ? ? ANNUAL REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 ? For the fiscal year ended December 31, 2020 OR ? ? ? TRANSITION REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 ? For the transition period from to Commission file number: 001-13122 A. Full title

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM SD Specialized Disclosure Report RELIANCE STEEL & ALUMINUM CO. (Exact name of registrant as specified in its charter)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM SD Specialized Disclosure Report RELIANCE STEEL & ALUMINUM CO. (Exact name of registrant as specified in its charter) Delaware 001-13122 95-1142616 (State or other jurisdiction of incorporation or organization) (Commission File Number) (I.R.S. Employer Identification No.) 350 S. Grand Ave., Suite 5100 Los Angeles, CA 9007

Submission of Matters to a Vote of Security Holders

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 19, 2021 RELIANCE STEEL & ALUMINUM CO. (Exact name of registrant as specified in its charter) Delaware 001-13122 95-1142616 (State or Other Jurisdiction of Incorporation) (Commiss

Quarterly Report - 10-Q

Table of Contents ? UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): April 22, 2021 RELIANCE STEEL & ALUMINUM CO. (Exact name of registrant as specified in its charter) Delaware 001-13122 95-1142616 (State or Other Jurisdiction of Incorporation) (Commi

Reliance Steel & Aluminum Co. Reports Record First Quarter 2021 Financial Results - Record quarterly gross profit of $953.7 million driven by record quarterly gross profit margin of 33.6% - Record quarterly pretax income of $359.0 million and record

EXHIBIT 99.1 Reliance Steel & Aluminum Co. Reports Record First Quarter 2021 Financial Results - Record quarterly gross profit of $953.7 million driven by record quarterly gross profit margin of 33.6% - Record quarterly pretax income of $359.0 million and record pretax income margin of 12.6% - Record EPS of $4.12 - Cash flow from operations of $161.8 million LOS ANGELES, April 22, 2021 (GLOBE NEWS

- DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant x Filed by a Party other than the Registrant ? Check the appropriate box: ? Preliminary Proxy Statement ? Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ? Defin

- DEF 14A

Use these links to rapidly review the document TABLE OF CONTENTS Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

Annual Report - 10-K

Table of Contents ? UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

Subsidiaries of Registrant.

EXHIBIT 21 The Company?s principal affiliates are listed below. All other affiliates, if considered in the aggregate as a single affiliate, would not constitute a significant subsidiary. SUBSIDIARIES OF REGISTRANT (As of February 25, 2021) Acero Prime, S. de R.L. de C.V., a limited liability company formed under the laws of Mexico Alaska Steel Company, a Washington corporation Aleaciones Especiale

Registrant’s First Amendment to Deferred Compensation Plan effective December 22, 2020.

EXHIBIT 10.15 ? FIRST AMENDMENT TO THE RELIANCE STEEL & ALUMINUM CO. DEFERRED COMPENSATION PLAN (Amended and Restated Effective January 1, 2013) THIS FIRST AMENDMENT (the ?Amendment?) to the Reliance Steel & Aluminum Co. Deferred Compensation Plan, as amended from time to time (the ?Plan?) is made as of December 22, 2020. WHEREAS, Reliance Steel & Aluminum Co. (the ?Company?) maintains the Plan to

Reliance Steel & Aluminum Co. Reports Fourth Quarter and Full Year 2020 Financial Results - Record annual gross profit margin of 31.5%, record fourth quarter gross profit margin of 33.0% - Annual EPS of $5.66, annual non-GAAP EPS of $7.71, fourth qua

EXHIBIT 99.1 Reliance Steel & Aluminum Co. Reports Fourth Quarter and Full Year 2020 Financial Results - Record annual gross profit margin of 31.5%, record fourth quarter gross profit margin of 33.0% - Annual EPS of $5.66, annual non-GAAP EPS of $7.71, fourth quarter EPS of $2.01 -Strong annual cash flow from operations of $1.17 billion - Annual share repurchases of $337.3 million - Increased quar

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 18, 2021 RELIANCE STEEL & ALUMINUM CO. (Exact name of registrant as specified in its charter) Delaware 001-13122 95-1142616 (State or Other Jurisdiction of Incorporation) (Co

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 8)*

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 8)* Name of issuer: Reliance Steel & Aluminum Co. Title of Class of Securities: Common Stock CUSIP Number: 759509102 Date of Event Which Requires Filing of this Statement: December 31, 2020 Check the appropriate box to designate the rule pursuant to which this Schedule i

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits - FORM 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): January 14, 2021 RELIANCE STEEL & ALUMINUM CO. (Exact name of registrant as specified in its charter) Delaware 001-13122 95-1142616 (State or Other Jurisdiction of Incorporation) (Com

Reliance Steel & Aluminum Co. Announces Director Succession and Leadership Promotions − Karla Lewis appointed to Board of Directors and promoted to President − Arthur Ajemyan promoted to Vice President, Chief Financial Officer − David Hannah retiring

Exhibit 99.1 Reliance Steel & Aluminum Co. Announces Director Succession and Leadership Promotions − Karla Lewis appointed to Board of Directors and promoted to President − Arthur Ajemyan promoted to Vice President, Chief Financial Officer − David Hannah retiring from Board of Directors at 2021 Annual Meeting of Stockholders LOS ANGELES, January 18, 2021 /PRNewswire/ - Reliance Steel & Aluminum Co

- FORM S-8

As filed with the Securities and Exchange Commission on December 11, 2020 Registration No.

Quarterly Report - 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2020 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file numbe

Reliance Steel & Aluminum Co. Reports Third Quarter 2020 Financial Results - Record gross profit margin of 32.4% - EPS of $1.51, non-GAAP EPS of $1.87 - Pretax income of $127.0 million, non-GAAP pretax income of $158.0 million - Generated cash flow f

EXHIBIT 99.1 Reliance Steel & Aluminum Co. Reports Third Quarter 2020 Financial Results - Record gross profit margin of 32.4% - EPS of $1.51, non-GAAP EPS of $1.87 - Pretax income of $127.0 million, non-GAAP pretax income of $158.0 million - Generated cash flow from operations of $296.3 million - Declared quarterly dividend of $0.625 per share LOS ANGELES, Oct. 22, 2020 (GLOBE NEWSWIRE) - Reliance

Financial Statements and Exhibits, Results of Operations and Financial Condition - FORM 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): October 22, 2020 RELIANCE STEEL & ALUMINUM CO. (Exact name of registrant as specified in its charter) Delaware 001-13122 95-1142616 (State or Other Jurisdiction of Incorporation) (Com

Reliance Steel & Aluminum Co. Announces Amended and Restated $1.5 Billion Credit Facility

Exhibit 99.1 NEWS RELEASE FOR IMMEDIATE RELEASE Reliance Steel & Aluminum Co. Announces Amended and Restated $1.5 Billion Credit Facility Los Angeles— September 8, 2020—Reliance Steel & Aluminum Co. (NYSE: RS) announced today that it has entered into an amended and restated $1.5 billion five-year unsecured revolving credit facility (the “Facility”) that will replace its existing credit agreement.

Entry into a Material Definitive Agreement, Financial Statements and Exhibits, Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant - FORM 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): September 3, 2020 RELIANCE STEEL & ALUMINUM CO. (Exact name of registrant as specified in its charter) Delaware 001-13122 95-1142616 (State or other jurisdiction of incorporation) (Co

Amended and Restated Credit Agreement dated as of September 3, 2020, among Reliance Steel & Aluminum Co., as Borrower, Bank of America N.A., as the Administrative Agent, JPMorgan Chase Bank, N.A. and Wells Fargo Bank, National Association, as Co-Syndication Agents, PNC Bank, National Association and TD Bank, N.A., as Co-Documentation Agents, and the other lenders party thereto.

Exhibit 10.1 Published Deal CUSIP Number: 759510AR1 USD Revolver CUSIP Number: 759510AS9 MUL Revolver CUSIP Number: 759510AT7 AMENDED AND RESTATED CREDIT AGREEMENT Dated as of September 3, 2020 among RELIANCE STEEL & ALUMINUM CO., as Borrower, BANK OF AMERICA, N.A., as Administrative Agent, Issuing Lender and Swing Line Lender, JPMorgan Chase Bank, N.A. and Wells Fargo Bank, NATIONAL ASSOCIATION,

First Supplemental Indenture, dated August 3, 2020, among Reliance Steel & Aluminum Co. and Wells Fargo Bank, National Association, as trustee (including forms of note for the 1.300% Senior Notes due 2025 and 2.150% Senior Notes due 2030).

Exhibit 4.2 EXECUTION VERSION Reliance Steel & Aluminum Co. as Issuer and Wells Fargo Bank, National Association, as Trustee FIRST SUPPLEMENTAL INDENTURE Dated as of August 3, 2020 to INDENTURE 1.300% Senior Notes due 2025 and 2.150% Senior Notes due 2030 TABLE OF CONTENTS PAGE ARTICLE I DEFINITIONS AND OTHER PROVISIONS OF GENERAL APPLICATION 1 Section 101. Definitions. 1 Section 102. Relationship

Underwriting Agreement, dated July 28, 2020, among Reliance Steel & Aluminum Co., J.P. Morgan Securities LLC, BofA Securities, Inc. and Wells Fargo Securities, LLC as representatives of the several underwriters named in Schedule 1 thereto.

Exhibit 1.1 EXECUTION VERSION $900,000,000 RELIANCE STEEL & ALUMINUM CO. $400,000,000 1.300% Senior Notes due 2025 $500,000,000 2.150% Senior Notes due 2030 Underwriting Agreement July 28, 2020 J.P. Morgan Securities LLC BofA Securities, Inc. Wells Fargo Securities, LLC As Representatives of the several Underwriters listed in Schedule 1 hereto c/o J.P. Morgan Securities LLC 383 Madison Avenue New

Indenture, dated August 3, 2020, among Reliance Steel & Aluminum Co. and Wells Fargo Bank, National Association, as trustee.

Exhibit 4.1 EXECUTION VERSION Reliance Steel & Aluminum Co. as Issuer and Wells Fargo Bank, National Association, as Trustee INDENTURE Dated as of August 3, 2020 DEBT SECURITIES CERTAIN SECTIONS OF THIS INDENTURE RELATING TO SECTIONS 310 THROUGH 318 INCLUSIVE, OF THE TRUST INDENTURE ACT OF 1939 Trust Indenture Act Section INDENTURE Section Section 310(a)(1) Section 609 (a)(2) Section 609 (a)(3) No

Financial Statements and Exhibits, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): July 28, 2020 RELIANCE STEEL & ALUMINUM CO. (Exact name of registrant as specified in its charter) Delaware 001-13122 95-1142616 (State or other jurisdiction of incorporation) (Commis

CALCULATION OF REGISTRATION FEE Title of Each Class of Securities to be Registered Amount to be registered Proposed Maximum Offering Price Per Unit Proposed Maximum Aggregateo Offering Price Amount of registration fee(1) 1.300% Notes due 2025 $400,00

Use these links to rapidly review the document TABLE OF CONTENTS TABLE OF CONTENTS Table of Contents Filed pursuant to Rule 424(b)(5) Registration No.

Statement of eligibility on Form T-1 of Debt Securities Indenture trustee

EX-25.1 5 a2242132zex-251.htm EX-25.1 Exhibit 25.1 SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM T-1 STATEMENT OF ELIGIBILITY UNDER THE TRUST INDENTURE ACT OF 1939 OF A CORPORATION DESIGNATED TO ACT AS TRUSTEE o CHECK IF AN APPLICATION TO DETERMINE ELIGIBILITY OF A TRUSTEE PURSUANT TO SECTION 305(b) (2) WELLS FARGO BANK, NATIONAL ASSOCIATION (Exact name of trustee as specified in

Form of Indenture

Exhibit 4.4 Reliance Steel & Aluminum Co. as Issuer and Wells Fargo Bank, National Association, as Trustee INDENTURE Dated as of 2020 DEBT SECURITIES CERTAIN SECTIONS OF THIS INDENTURE RELATING TO SECTIONS 310 THROUGH 318 INCLUSIVE, OF THE TRUST INDENTURE ACT OF 1939 Trust Indenture Act Section INDENTURE Section Section 310(a)(1) Section 609 (a)(2) Section 609 (a)(3) Not Applicable (a)(4) Not Appl

- S-3ASR

Use these links to rapidly review the document TABLE OF CONTENTS Table of Contents As filed with the Securities and Exchange Commission on July 28, 2020 Registration No.

Subject to completion, dated July 28, 2020

Use these links to rapidly review the document TABLE OF CONTENTS TABLE OF CONTENTS Table of Contents Filed pursuant to Rule 424(b)(5) Registration No.

RELIANCE STEEL & ALUMINUM CO. $400,000,000 1.300% Senior Notes due 2025 $500,000,000 2.150% Senior Notes due 2030 Pricing Term Sheet

Filed Pursuant to Rule 433 Registration Statement No. 333-240139 Pricing Term Sheet RELIANCE STEEL & ALUMINUM CO. $400,000,000 1.300% Senior Notes due 2025 $500,000,000 2.150% Senior Notes due 2030 Pricing Term Sheet Issuer: Reliance Steel & Aluminum Co. Securities: $400,000,000 1.300% Senior Notes due 2025 $500,000,000 2.150% Senior Notes due 2030 Principal Amount: $400,000,000 (Senior Notes due

Quarterly Report - 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2020 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number: 00

Reliance Steel & Aluminum Co. Reports Second Quarter 2020 Financial Results - Strong gross profit margin of 30.4% - EPS of $1.24, non-GAAP EPS of $1.36 - Generated cash flow from operations of $475.7 million - Declared quarterly dividend of $0.625 pe

EXHIBIT 99.1 Reliance Steel & Aluminum Co. Reports Second Quarter 2020 Financial Results - Strong gross profit margin of 30.4% - EPS of $1.24, non-GAAP EPS of $1.36 - Generated cash flow from operations of $475.7 million - Declared quarterly dividend of $0.625 per share LOS ANGELES, July 23, 2020 (GLOBE NEWSWIRE) - Reliance Steel & Aluminum Co. (NYSE: RS) today reported its financial results for t

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): July 23, 2020 RELIANCE STEEL & ALUMINUM CO. (Exact name of registrant as specified in its charter) Delaware 001-13122 95-1142616 (State or Other Jurisdiction of Incorporation) (Commis

- 11-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 11-K (Mark One) ⌧ ANNUAL REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2019 OR ◻ TRANSITION REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number: 001-13122 A. Full title of the plan

- 11-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 11-K (Mark One) ⌧ ANNUAL REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2019 OR ◻ TRANSITION REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number: 001-13122 A. Full title of the plan

- SD

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM SD Specialized Disclosure Report RELIANCE STEEL & ALUMINUM CO. (Exact name of registrant as specified in its charter) Delaware 001-13122 95-1142616 (State or other jurisdiction of incorporation) (Commission File Number) (I.R.S. Employer Identification Number) 350 S. Grand Ave., Suite 5100 Los Angeles, CA 90071 (Address of

Amendment No. 1 to Registrant’s Directors Equity Plan.

Exhibit 10.2 RELIANCE STEEL & ALUMINUM CO. AMENDMENT NO. 1 to DIRECTORS EQUITY PLAN May 20, 2020 The Board of Directors of Reliance Steel & Aluminum Co. (the “Company”) hereby amends the Reliance Steel & Aluminum Co. Directors Equity Plan, adopted in May 2011 (the “Plan”), as follows, subject to and effective upon shareholder approval: 1. Section 5(a) of the Plan is hereby deleted in its entirety

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Submission of Matters to a Vote of Security Holders, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 20, 2020 RELIANCE STEEL & ALUMINUM CO. (Exact name of registrant as specified in its charter) Delaware 001-13122 95-1142616 (State or other jurisdiction of incorporation) (Commiss

Registrant’s Second Amended and Restated 2015 Incentive Award Plan.

Exhibit 10.1 RELIANCE STEEL & ALUMINUM CO. SECOND AMENDED AND RESTATED 2015 INCENTIVE AWARD PLAN (as amended and restated May 20, 2020) ARTICLE 1. PURPOSE The purpose of the Reliance Steel & Aluminum Co. Second Amended and Restated 2015 Incentive Award Plan (as it may be amended or restated from time to time, the “Plan”) is to promote the success and enhance the value of Reliance Steel & Aluminum

Quarterly Report - 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2020 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number: 0

Reliance Steel & Aluminum Co. Reports First Quarter 2020 Financial Results Strong gross profit margin of 30.3%; non-GAAP gross profit margin of 31.9% EPS of $0.92, non-GAAP EPS of $2.45 Includes pretax impairment and restructuring charge of $137.5 mi

EXHIBIT 99.1 Reliance Steel & Aluminum Co. Reports First Quarter 2020 Financial Results Strong gross profit margin of 30.3%; non-GAAP gross profit margin of 31.9% EPS of $0.92, non-GAAP EPS of $2.45 Includes pretax impairment and restructuring charge of $137.5 million, or $1.53 per diluted share Generated cash flow from operations of $170.8 million, an increase of 45.7% year-over-year Repurchased

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): April 23, 2020 RELIANCE STEEL & ALUMINUM CO. (Exact name of registrant as specified in its charter) Delaware 001-13122 95-1142616 (State or Other Jurisdiction of Incorporation) (Commi

RS / Reliance Steel & Aluminum Co., Inc. DEFA14A - - DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant x Filed by a Party other than the Registrant ¨ Check the appropriate box: ¨ Preliminary Proxy Statement ¨ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ¨ Defin

definitive proxy statement

Use these links to rapidly review the document TABLE OF CONTENTS Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

Annual Report - 10-K

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K (Mark One) ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2019 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number: 001-13

Description of Registrant’s Securities Registered Pursuant to Section 12 of the Exchange Act.

EXHIBIT 4.05 DESCRIPTION OF THE REGISTRANT’S SECURITIES REGISTERED PURSUANT TO SECTION 12 OF THE SECURITIES EXCHANGE ACT OF 1934 Reliance Steel & Aluminum Co. (“Reliance”) has one class of securities registered under Section 12 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”): our common stock. The following summary of the terms of Reliance’s common stock, par value $.001 pe

Subsidiaries of Registrant.

EX-21 3 ex-21.htm EX-21 EXHIBIT 21 The Company’s principal affiliates are listed below. All other affiliates, if considered in the aggregate as a single affiliate, would not constitute a significant subsidiary. SUBSIDIARIES OF REGISTRANT (As of February 27, 2020) Acero Prime, S. de R.L. de C.V., a limited liability company formed under the laws of Mexico Alaska Steel Company, a Washington corporat

Reliance Steel & Aluminum Co. Reports Fourth Quarter and Full Year 2019 Financial Results - Record annual gross profit margin of 30.3% on $11 billion of sales drove record annual gross profit dollars of $3.33 billion - Record annual pretax income of

EXHIBIT 99.1 Reliance Steel & Aluminum Co. Reports Fourth Quarter and Full Year 2019 Financial Results - Record annual gross profit margin of 30.3% on $11 billion of sales drove record annual gross profit dollars of $3.33 billion - Record annual pretax income of $929.3 million increased $78.7 million, or 9.3%, year-over-year - Record annual net income of $701.5 million increased $67.8 million, or

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 20, 2020 RELIANCE STEEL & ALUMINUM CO. (Exact name of registrant as specified in its charter) Delaware 001-13122 95-1142616 (State or Other Jurisdiction of Incorporation) (Co

RS / Reliance Steel & Aluminum Co., Inc. / VANGUARD GROUP INC - SCHEDULE 13G/A Passive Investment

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 7)* Name of issuer: Reliance Steel & Aluminum Co Title of Class of Securities: Common Stock CUSIP Number: 759509102 Date of Event Which Requires Filing of this Statement: December 31, 2019 Check the appropriate box to designate the rule pursuant to which this Schedule is

RS / Reliance Steel & Aluminum Co., Inc. / VICTORY CAPITAL MANAGEMENT INC Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 ( Amendment No. 1)* Reliance Steel & Aluminum Co. (Name of Issuer) Common Stock (Title of Class of Securities) 759509102 (CUSIP Number) December 31, 2019 (Date of Event which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to whi

Quarterly Report - 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2019 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file numbe

Reliance Steel & Aluminum Co. Reports Third Quarter 2019 Financial Results – EPS of $2.40 increased 18.2% year-over-year – Strong gross profit margin of 30.3% – Generated significant cash flow from operations of $490.9 million

EXHIBIT 99.1 Reliance Steel & Aluminum Co. Reports Third Quarter 2019 Financial Results – EPS of $2.40 increased 18.2% year-over-year – Strong gross profit margin of 30.3% – Generated significant cash flow from operations of $490.9 million LOS ANGELES, Oct. 24, 2019 (GLOBE NEWSWIRE) - Reliance Steel & Aluminum Co. (NYSE: RS) today reported its financial results for the third quarter ended Septembe

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): October 24, 2019 RELIANCE STEEL & ALUMINUM CO. (Exact name of registrant as specified in its charter) Delaware 001-13122 95-1142616 (State or Other Jurisdiction of Incorporation) (Com

RELIANCE STEEL & ALUMINUM CO. Announces New Directors

Exhibit 99.1 NEWS RELEASE FOR IMMEDIATE RELEASE RELIANCE STEEL & ALUMINUM CO. Announces New Directors Los Angeles, CA – October 4, 2019 - Reliance Steel & Aluminum Co. (NYSE:RS) announced today that Gregg J. Mollins, the Company’s former President and Chief Executive Officer, intends to step down from the Board of Directors, effective October 22, 2019, and that James D. Hoffman, 61, Reliance’s Pre

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): October 3, 2019 RELIANCE STEEL & ALUMINUM CO. (Exact Name of Registrant as Specified in Charter) Delaware 001-13122 95-1142616 (State or Other Jurisdiction of Incorporation) (Commissi

RS / Reliance Steel & Aluminum Co., Inc. / VANGUARD GROUP INC - SCHEDULE 13G/A Passive Investment

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 6)* Name of issuer: Reliance Steel & Aluminum Co Title of Class of Securities: Common Stock CUSIP Number: 759509102 Date of Event Which Requires Filing of this Statement: August 30, 2019 Check the appropriate box to designate the rule pursuant to which this Schedule is f

Quarterly Report - 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2019 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number: 00

Reliance Steel & Aluminum Co. Reports Second Quarter 2019 Financial Results Strong gross profit margin of 29.6% drove third highest gross profit dollars in Company’s history of $853.6 million EPS of $2.69, Non-GAAP EPS of $2.71, third highest in Comp

EXHIBIT 99.1 Reliance Steel & Aluminum Co. Reports Second Quarter 2019 Financial Results Strong gross profit margin of 29.6% drove third highest gross profit dollars in Company’s history of $853.6 million EPS of $2.69, Non-GAAP EPS of $2.71, third highest in Company’s history Generated significant cash flow from operations of $346.0 million Repurchased $50.0 million of Reliance common stock LOS AN

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event Reported): July 25, 2019 RELIANCE STEEL & ALUMINUM CO (Exact Name of Registrant as Specified in Charter) Delaware 001-13122 95-1142616 (State or Other Jurisdiction of Incorporation) (Commission

RS / Reliance Steel & Aluminum Co., Inc. 11-K - - FORM 11-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 11‑K (Mark One) ☒ ANNUAL REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2018 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number: 001-13122 A. Full title of the plan

RS / Reliance Steel & Aluminum Co., Inc. 11-K - - FORM 11-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 11-K (Mark One) ☒ ANNUAL REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2018 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number: 001-13122 A. Full title of the plan

RS / Reliance Steel & Aluminum Co., Inc. SD - - SD

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM SD Specialized Disclosure Report RELIANCE STEEL & ALUMINUM CO. (Exact name of registrant as specified in its charter) Delaware 001-13122 95-1142616 (State or other jurisdiction of incorporation) (Commission File Number) (I.R.S. Employer Identification Number) 350 S. Grand Ave., Suite 5100 Los Angeles, CA 90071 (Address of

Submission of Matters to a Vote of Security Holders

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 15, 2019 RELIANCE STEEL & ALUMINUM CO. (Exact name of registrant as specified in its charter) Delaware 001-13122 95-1142616 (State or other jurisdiction of incorporation) (Commiss

Quarterly Report - 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☒QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2019 OR ☐TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number: 001

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event Reported): April 25, 2019 RELIANCE STEEL & ALUMINUM CO. (Exact Name of Registrant as Specified in Charter) Delaware 001-13122 95-1142616 (State or Other Jurisdiction of Incorporation) (Commissio

Reliance Steel & Aluminum Co. Reports First Quarter 2019 Financial Results - EPS of $2.80 increased 21.7% year-over-year - Net sales of $2.96 billion increased $199.5 million, or 7.2%, year-over-year - Strong gross profit margin of 29.3% drove gross

EXHIBIT 99.1 Reliance Steel & Aluminum Co. Reports First Quarter 2019 Financial Results - EPS of $2.80 increased 21.7% year-over-year - Net sales of $2.96 billion increased $199.5 million, or 7.2%, year-over-year - Strong gross profit margin of 29.3% drove gross profit dollars of $866.9 million, second highest in Company’s history - Pretax income of $255.5 million, second highest in Company’s hist

definitive proxy statement on Schedule 14A

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as permitte

RS / Reliance Steel & Aluminum Co., Inc. DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)

RS / Reliance Steel & Aluminum Co., Inc. DEF 14A

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as permitte

RS / Reliance Steel & Aluminum Co., Inc. 10-K (Annual Report)

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K (Mark One) ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2018 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number: 001-13

Subsidiaries of Registrant.

EXHIBIT 21 The Company’s principal affiliates are listed below. All other affiliates, if considered in the aggregate as a single affiliate, would not constitute a significant subsidiary. SUBSIDIARIES OF REGISTRANT (As of February 27, 2019) Acero Prime, S. de R.L. de C.V., a limited liability company formed under the laws of Mexico Alaska Steel Company, a Washington corporation Aleaciones Especiale

Reliance Steel & Aluminum Co. Reports Fourth Quarter and Full Year 2018 Financial Results — Record annual net sales of $11.53 billion increased $1.81 billion, or 18.7%, year-over-year — Record annual gross profit dollars of $3.28 billion increased 17

EXHIBIT 99.1 Reliance Steel & Aluminum Co. Reports Fourth Quarter and Full Year 2018 Financial Results — Record annual net sales of $11.53 billion increased $1.81 billion, or 18.7%, year-over-year — Record annual gross profit dollars of $3.28 billion increased 17.7% year-over-year — Record pretax income dollars of $850.6 million increased $266.8 million, or 45.7%, year-over-year — Record annual EP

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event Reported): February 21, 2019 RELIANCE STEEL & ALUMINUM CO. (Exact Name of Registrant as Specified in Charter) Delaware 001-13122 95-1142616 (State or Other Jurisdiction of Incorporation) (Commis

RS / Reliance Steel & Aluminum Co., Inc. / VANGUARD GROUP INC Passive Investment

reliancesteelaluminumco.htm - Generated by SEC Publisher for SEC Filing SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 5 )* Name of issuer: Reliance Steel & Aluminum Co Title of Class of Securities: Common Stock CUSIP Number: 759509102 Date of Event Which Requires Filing of this Statement: December 31, 2018 Check the

RS / Reliance Steel & Aluminum Co., Inc. / VICTORY CAPITAL MANAGEMENT INC Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 ( Amendment No. 1)* Reliance Steel & Aluminum Co. (Name of Issuer) Common Stock (Title of Class of Securities) 759509102 (CUSIP Number) December 31, 2018 (Date of Event which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to whi

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): January 16, 2019 RELIANCE STEEL & ALUMINUM CO. (Exact name of registrant as specified in its charter) Delaware 001-13122 95-1142616 (State or other jurisdiction of incorporation) (Com

RELIANCE STEEL & ALUMINUM CO. ANNOUNCES APPOINTMENT OF JEFFREY DURHAM AS SENIOR VICE PRESIDENT, OPERATIONS

Exhibit 99.1 NEWS RELEASE FOR IMMEDIATE RELEASE RELIANCE STEEL & ALUMINUM CO. ANNOUNCES APPOINTMENT OF JEFFREY DURHAM AS SENIOR VICE PRESIDENT, OPERATIONS LOS ANGELES— January 16, 2019—Reliance Steel & Aluminum Co. (NYSE: RS) announced today that Jeffrey W. Durham has been promoted to the position of Senior Vice President, Operations, effective immediately. As Senior Vice President, Operations, Mr

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event Reported): October 30, 2018 RELIANCE STEEL & ALUMINUM CO. (Exact Name of Registrant as Specified in Charter) Delaware 001-13122 95-1142616 (State or Other Jurisdiction of Incorporation) (Commiss

RELIANCE STEEL ANNOUNCES EXECUTIVE LEADERSHIP SUCCESSION JAMES D. HOFFMAN TO SUCCEED GREGG J. MOLLINS AS CHIEF EXECUTIVE OFFICER IN JANUARY 2019

Exhibit 99.1 RELIANCE STEEL ANNOUNCES EXECUTIVE LEADERSHIP SUCCESSION JAMES D. HOFFMAN TO SUCCEED GREGG J. MOLLINS AS CHIEF EXECUTIVE OFFICER IN JANUARY 2019 LOS ANGELES, CA, November 1, 2018 - Reliance Steel & Aluminum Co. (NYSE: RS) today announced that its Board of Directors has unanimously appointed James D. Hoffman as President and Chief Executive Officer, effective January 1, 2019. Mr. Hoffm

RS / Reliance Steel & Aluminum Co., Inc. 10-Q (Quarterly Report)

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☒QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2018 OR ☐TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number:

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event Reported): October 25, 2018 RELIANCE STEEL & ALUMINUM CO. (Exact Name of Registrant as Specified in Charter) Delaware 001-13122 95-1142616 (State or Other Jurisdiction of Incorporation) (Commiss

Reliance Steel & Aluminum Co. Reports Third Quarter 2018 Financial Results -- Second highest quarterly net sales in Company’s history of $2.97 billion increased $524.4 million, or 21.4%, year-over-year -- Second highest quarterly gross profit dollars

EXHIBIT 99.1 Reliance Steel & Aluminum Co. Reports Third Quarter 2018 Financial Results - Second highest quarterly net sales in Company’s history of $2.97 billion increased $524.4 million, or 21.4%, year-over-year - Second highest quarterly gross profit dollars in Company’s history of $834.3 million increased 21.7% year-over-year - EPS of $2.03 increased 53.8% year-over-year; second highest non-GA

RS / Reliance Steel & Aluminum Co., Inc. 10-Q (Quarterly Report)

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☒QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2018 OR ☐TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number: 001-

Reliance Steel & Aluminum Co. Reports Record Second Quarter 2018 Financial Results - Second highest quarterly EPS in Company’s history of $3.16 increased 125.7% year-over-year; record quarterly Non-GAAP EPS of $3.10 - Record quarterly pre-tax income

EXHIBIT 99.1 Reliance Steel & Aluminum Co. Reports Record Second Quarter 2018 Financial Results - Second highest quarterly EPS in Company’s history of $3.16 increased 125.7% year-over-year; record quarterly Non-GAAP EPS of $3.10 - Record quarterly pre-tax income of $306.6 million increased $154.2 million, or 101.2%, year-over-year - Record quarterly net sales of $2.99 billion increased $513.7 mill

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event Reported): July 26, 2018 RELIANCE STEEL & ALUMINUM CO. (Exact Name of Registrant as Specified in Charter) Delaware 001-13122 95-1142616 (State or Other Jurisdiction of Incorporation) (Commission

RS / Reliance Steel & Aluminum Co., Inc. 11-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 11‑K (Mark One) ☒ ANNUAL REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2017 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number: 001-13122 A. Full title of the plan

RS / Reliance Steel & Aluminum Co., Inc. 11-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 11‑K (Mark One) ☒ ANNUAL REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2017 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number: 001-13122 A. Full title of the plan

RS / Reliance Steel & Aluminum Co., Inc. SD

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM SD Specialized Disclosure Report RELIANCE STEEL & ALUMINUM CO. (Exact name of registrant as specified in its charter) Delaware 001-13122 95-1142616 (State or other jurisdiction of incorporation) (Commission File Number) (I.R.S. Employer Identification Number) 350 S. Grand Ave., Suite 5100 Los Angeles, CA 90071 (Address of

Submission of Matters to a Vote of Security Holders

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 16, 2018 RELIANCE STEEL & ALUMINUM CO. (Exact name of registrant as specified in its charter) Delaware 001-13122 95-1142616 (State or other jurisdiction of incorporation) (Commiss

RS / Reliance Steel & Aluminum Co., Inc. 10-Q (Quarterly Report)

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☒QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2018 OR ☐TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number: 001

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event Reported): April 26, 2018 RELIANCE STEEL & ALUMINUM CO. (Exact Name of Registrant as Specified in Charter) Delaware 001-13122 95-1142616 (State or Other Jurisdiction of Incorporation) (Commissio

Reliance Steel & Aluminum Co. Reports First Quarter 2018 Financial Results -- Second highest quarterly EPS in Company’s history of $2.30 increased 51.3% year-over-year -- Record net sales of $2.76 billion increased $337.8 million, or 14.0%, year-over

EXHIBIT 99.1 Reliance Steel & Aluminum Co. Reports First Quarter 2018 Financial Results - Second highest quarterly EPS in Company’s history of $2.30 increased 51.3% year-over-year - Record net sales of $2.76 billion increased $337.8 million, or 14.0%, year-over-year - Strong gross profit margin of 29.7% drove record quarterly gross profit dollars of $819.9 million - Repurchased $50 million of Reli

RS / Reliance Steel & Aluminum Co., Inc. DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)

RS / Reliance Steel & Aluminum Co., Inc. DEF 14A

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as permitte

Subsidiaries of Registrant.

EXHIBIT 21 The Company’s principal affiliates are listed below. All other affiliates, if considered in the aggregate as a single affiliate, would not constitute a significant subsidiary. SUBSIDIARIES OF REGISTRANT (As of February 28, 2018) Alaska Steel Company, a Washington corporation Aleaciones Especiales de Mexico, S. de R.L. de C.V., a corporation formed under the laws of Mexico Allegheny Stee

RS / Reliance Steel & Aluminum Co., Inc. 10-K (Annual Report)

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K (Mark One) ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2017 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number: 001-13

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event Reported): February 15, 2018 RELIANCE STEEL & ALUMINUM CO. (Exact Name of Registrant as Specified in Charter) Delaware 001-13122 95-1142616 (State or Other Jurisdiction of Incorporation) (Commis

Reliance Steel & Aluminum Co. Reports Fourth Quarter and Full Year 2017 Financial Results -- Fourth quarter GAAP EPS of $4.09; non-GAAP EPS of $1.22 increased 45.2% year-over-year -- Second highest annual net sales of $9.72 billion increased $1.1 bil

EdgarFiling EXHIBIT 99.1 Reliance Steel & Aluminum Co. Reports Fourth Quarter and Full Year 2017 Financial Results - Fourth quarter GAAP EPS of $4.09; non-GAAP EPS of $1.22 increased 45.2% year-over-year - Second highest annual net sales of $9.72 billion increased $1.1 billion, or 12.9%, year-over-year - Highest ever annual gross profit dollars of $2.79 billion; gross profit margin of 28.7% - Repu

RS / Reliance Steel & Aluminum Co., Inc. / VANGUARD GROUP INC Passive Investment

reliancesteelaluminumco.htm - Generated by SEC Publisher for SEC Filing SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 4 )* Name of issuer: Reliance Steel & Aluminum Co Title of Class of Securities: Common Stock CUSIP Number: 759509102 Date of Event Which Requires Filing of this Statement: December 31, 2017 Check the

RS / Reliance Steel & Aluminum Co., Inc. / VICTORY CAPITAL MANAGEMENT INC Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 ( Amendment No. )* Reliance Steel & Aluminum Co. (Name of Issuer) Common Stock (Title of Class of Securities) 759509102 (CUSIP Number) December 31, 2017 (Date of Event which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to whic

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☒QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2017 OR ☐TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number:

Reliance Steel & Aluminum Co. Reports Third Quarter 2017 Financial Results -- Net sales of $2.45 billion increased 12.1% year-over-year -- Gross profit margin of 28.0% from continued strong execution -- GAAP EPS of $1.32 increased 94.1% year-over-yea

EdgarFiling

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event Reported): October 26, 2017 RELIANCE STEEL & ALUMINUM CO. (Exact Name of Registrant as Specified in Charter) Delaware 001-13122 95-1142616 (State or Other Jurisdiction of Incorporation) (Commiss

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

10-Q Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

Reliance Steel & Aluminum FORM 8-K (Current Report/Significant Event)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event Reported): July 27, 2017 RELIANCE STEEL & ALUMINUM CO. (Exact Name of Registrant as Specified in Charter) Delaware 001-13122 95-1142616 (State or Other Jurisdiction of Incorporation) (Commission

Reliance Steel & Aluminum Co. Reports Second Quarter 2017 Financial Results Net sales of $2.48 billion increased 12.3% year-over-year Gross profit margin of 28.4%; $702.1 million gross profit – 2nd highest in Company’s history GAAP EPS of $1.40

EdgarFiling EXHIBIT 99.1 Reliance Steel & Aluminum Co. Reports Second Quarter 2017 Financial Results Net sales of $2.48 billion increased 12.3% year-over-year Gross profit margin of 28.4%; $702.1 million gross profit ? 2nd highest in Company?s history GAAP EPS of $1.40 LOS ANGELES, July 27, 2017 (GLOBE NEWSWIRE) - Reliance Steel & Aluminum Co. (NYSE:RS) today reported its financial results for the

Reliance Steel & Aluminum 11-K

Form 11-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 11‑K (Mark One) ☒ ANNUAL REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2016 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number: 001-13122 A. Full title of

Reliance Steel & Aluminum 11-K

Form 11-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 11‑K (Mark One) ☒ ANNUAL REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2016 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number: 001-13122 A. Full title of

Reliance Steel & Aluminum SD

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM SD Specialized Disclosure Report RELIANCE STEEL & ALUMINUM CO. (Exact name of registrant as specified in its charter) Delaware 001-13122 95-1142616 (State or other jurisdiction of incorporation) (Commission File Number) (I.R.S. Employer Identification Number) 350 S. Grand Ave., Suite 5100 Los Angeles, CA 90071 (Address of

Submission of Matters to a Vote of Security Holders

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 17, 2017 RELIANCE STEEL & ALUMINUM CO. (Exact name of registrant as specified in its charter) Delaware 001-13122 95-1142616 (State or other jurisdiction of incorporation) (Commiss

Reliance Steel & Aluminum 10-Q (Quarterly Report)

10-Q Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event Reported): April 27, 2017 RELIANCE STEEL & ALUMINUM CO. (Exact Name of Registrant as Specified in Charter) Delaware 001-13122 95-1142616 (State or Other Jurisdiction of Incorporation) (Commissio

Reliance Steel & Aluminum Co. Reports First Quarter 2017 Financial Results - Net sales of $2.42 billion increased 11.9% year-over-year - GAAP EPS of $1.52 increased 19.7% year-over-year; highest quarterly earnings since Q1 2012 - Strong operational e

EdgarFiling Exhibit 99.1 Reliance Steel & Aluminum Co. Reports First Quarter 2017 Financial Results - Net sales of $2.42 billion increased 11.9% year-over-year - GAAP EPS of $1.52 increased 19.7% year-over-year; highest quarterly earnings since Q1 2012 - Strong operational execution; record quarterly gross profit of $721.6 million LOS ANGELES, April 27, 2017 (GLOBE NEWSWIRE) - Reliance Steel & Alu

Reliance Steel & Aluminum DEFA14A

DEFA14A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant ? Filed by a Party other than the Registrant ? Check the appropriate box: ? Preliminary Proxy Statement ? Confidential, for Use of the Commission Only (as permitted by Rule

Reliance Steel & Aluminum DEF 14A

DEF14A Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.

Reliance Steel & Aluminum 10-K (Annual Report)

10-K Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

SUBSIDIARIES OF REGISTRANT (As of February 24, 2017) Alaska Steel Company, a Washington corporation Aleaciones Especiales de Mexico, S. de R.L. de C.V., a corporation formed under the laws of Mexico Allegheny Steel Distributors, Inc., a Pennsylvania

EXHIBIT 21 The Company’s principal affiliates are listed below. All other affiliates, if considered in the aggregate as a single affiliate, would not constitute a significant subsidiary. SUBSIDIARIES OF REGISTRANT (As of February 24, 2017) Alaska Steel Company, a Washington corporation Aleaciones Especiales de Mexico, S. de R.L. de C.V., a corporation formed under the laws of Mexico Allegheny Stee

Reliance Steel & Aluminum FORM 8-K (Current Report/Significant Event)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event Reported): February 16, 2017 RELIANCE STEEL & ALUMINUM CO. (Exact Name of Registrant as Specified in Charter) Delaware 001-13122 95-1142616 (State or Other Jurisdiction of Incorporation) (Commis

Reliance Steel & Aluminum Co. Reports Fourth Quarter and Full Year 2016 Financial Results - Fourth quarter EPS of $0.84 - Record annual gross profit margin of 30.1% for 2016 - Generated full year cash flow from operations of $626.5 million - Increase

EdgarFiling EXHIBIT 99.1 Reliance Steel & Aluminum Co. Reports Fourth Quarter and Full Year 2016 Financial Results - Fourth quarter EPS of $0.84 - Record annual gross profit margin of 30.1% for 2016 - Generated full year cash flow from operations of $626.5 million - Increased quarterly dividend by 6% to $0.45 per share LOS ANGELES, Feb. 16, 2017 (GLOBE NEWSWIRE) - Reliance Steel & Aluminum Co. (NY

RS / Reliance Steel & Aluminum Co., Inc. / VANGUARD GROUP INC Passive Investment

reliancesteelaluminumco.htm - Generated by SEC Publisher for SEC Filing SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 3 )* Name of issuer: Reliance Steel & Aluminum Co Title of Class of Securities: Common Stock CUSIP Number: 759509102 Date of Event Which Requires Filing of this Statement: December 31, 2016 Check the

Reliance Steel & Aluminum 10-Q (Quarterly Report)

10-Q Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

Reliance Steel & Aluminum Co. Reports Third Quarter 2016 Financial Results

EdgarFiling EXHIBIT 99.1 Reliance Steel & Aluminum Co. Reports Third Quarter 2016 Financial Results Non-GAAP EPS of $1.25; GAAP EPS of $0.68 Continued strong operational execution Generated cash flow from operations of $182.4 million LOS ANGELES, Oct. 20, 2016 (GLOBE NEWSWIRE) - Reliance Steel & Aluminum Co. (NYSE:RS) today reported its financial results for the third quarter ended September 30, 2

Reliance Steel & Aluminum FORM 8-K (Current Report/Significant Event)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event Reported): October 20, 2016 RELIANCE STEEL & ALUMINUM CO. (Exact Name of Registrant as Specified in Charter) Delaware 001-13122 95-1142616 (State or Other Jurisdiction of Incorporation) (Commiss

Reliance Steel & Aluminum 8-K (Current Report/Significant Event)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): October 4, 2016 RELIANCE STEEL & ALUMINUM CO. (Exact name of registrant as specified in its charter) Delaware 001-13122 95-1142616 (State or other jurisdiction of incorporation) (Comm

RELIANCE STEEL & ALUMINUM CO. ANNOUNCES NEW DIRECTORS

Exhibit 99.1 NEWS RELEASE FOR IMMEDIATE RELEASE RELIANCE STEEL & ALUMINUM CO. ANNOUNCES NEW DIRECTORS LOS ANGELES?October 5, 2016?Reliance Steel & Aluminum Co. (NYSE: RS) announced today that it has increased the size of its Board of Directors from nine to 11 members and appointed Karen W. Colonias, 59, and Douglas W. Stotlar, 56, to serve as independent directors. Each of Ms. Colonias? and Mr. St

SPECIAL POWER OF ATTORNEY

SPECIAL POWER OF ATTORNEY The undersigned is an officer and/or director of Reliance Steel & Aluminum Co.

SPECIAL POWER OF ATTORNEY

SPECIAL POWER OF ATTORNEY The undersigned is an officer and/or director of Reliance Steel & Aluminum Co.

Reliance Steel & Aluminum Co. Announces New $2.1 Billion Credit Agreement

Exhibit 99.1 NEWS RELEASE FOR IMMEDIATE RELEASE Reliance Steel & Aluminum Co. Announces New $2.1 Billion Credit Agreement Los Angeles, CA ? October 3, 2016 ? Reliance Steel & Aluminum Co. (NYSE:RS) announced today that on September 30, 2016 it entered into a new credit agreement comprised of a $1.5 billion unsecured revolving credit facility and a $600 million unsecured term loan. The new credit a

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): September 30, 2016 RELIANCE STEEL

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): September 30, 2016 RELIANCE STEEL & ALUMINUM CO. (Exact name of registrant as specified in its charter) Delaware 001-13122 95-1142616 (State or other jurisdiction of incorporation) (C

Credit Agreement dated as of September 30, 2016 by and among Registrant, Bank of America N.A., as Administrative Agent, Issuing Lender and Swing Line Lender, and the other lenders party thereto.

Exhibit 10.1 Published Deal CUSIP Number: 759510AM2 Revolver CUSIP Number: 759510AN0 Term Loan CUSIP Number: 759510AP5 CREDIT AGREEMENT Dated as of September 30, 2016 among RELIANCE STEEL & ALUMINUM CO., as Borrower, BANK OF AMERICA, N.A., as Administrative Agent, Issuing Lender and Swing Line Lender, JPMORGAN CHASE BANK, N.A. and WELLS FARGO BANK, NATIONAL ASSOCIATION, as Co-Syndication Agents, P

Reliance Steel & Aluminum 11-K/A

Form 11-KA UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 11?K/A (Mark One) ? ANNUAL REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2015 OR ? TRANSITION REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number: 001-13122 A. Full title

Reliance Steel & Aluminum 10-Q (Quarterly Report)

10-Q Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): July 21, 2016 RELIANCE STEEL & ALUMINUM CO. (Exact name of registrant as specified in its charter) Delaware 001-13122 95-1142616 (State or other jurisdiction of incorporation) (Commis

Reliance Steel & Aluminum Co. Reports Second Quarter 2016 Financial Results

Exhibit 99.1 Reliance Steel & Aluminum Co. Reports Second Quarter 2016 Financial Results - EPS of $1.38, up 15.0% year-over-year - FIFO gross profit margin of 31.1% increased for the sixth consecutive quarter - Regular quarterly dividend increased by 6.3% LOS ANGELES, July 21, 2016 /PRNewswire/ - Reliance Steel & Aluminum Co. (NYSE: RS) today reported its financial results for the second quarter e

Reliance Steel & Aluminum 11-K

Form 11-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 11?K (Mark One) ? ANNUAL REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2015 OR ? TRANSITION REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number: 001-13122 A. Full title of

Reliance Steel & Aluminum 11-K

Form 11-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 11?K (Mark One) ? ANNUAL REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2015 OR ? TRANSITION REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number: 001-13122 A. Full title of

Reliance Steel & Aluminum SD

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM SD Specialized Disclosure Report RELIANCE STEEL & ALUMINUM CO. (Exact name of registrant as specified in its charter) Delaware 001-13122 95-1142616 (State or other jurisdiction of incorporation) (Commission File Number) (I.R.S. Employer Identification Number) 350 S. Grand Ave., Suite 5100 Los Angeles, CA 90071 (Address of

Submission of Matters to a Vote of Security Holders

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 18, 2016 RELIANCE STEEL & ALUMINUM CO. (Exact name of registrant as specified in its charter) Delaware 001-13122 95-1142616 (State or other jurisdiction of incorporation) (Commiss