NCBS / Nicolet Bankshares 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 19, 2025 NICOLET BANKSHARE

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 19, 2025 NICOLET BANKSHARES, INC. (Exact name of registrant as specified in its charter) Wisconsin 001-37700 47-0871001 (State or other jurisdiction of incorporation) (Commissi

NICOLET BANKSHARES, INC. DECLARES CASH DIVIDEND TO SHAREHOLDERS

Exhibit 99.1 FOR IMMEDIATE RELEASE NICOLET BANKSHARES, INC. DECLARES CASH DIVIDEND TO SHAREHOLDERS Green Bay, Wisconsin, August 19, 2025 - Nicolet Bankshares, Inc. (NYSE: NIC) (“Nicolet”) announced its Board of Directors has declared a quarterly cash dividend of $0.32 per share to shareholders of its common stock. The dividend will be payable on September 15, 2025, to shareholders of record as of

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

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2025 ☐ 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: 001-37700 NICOLET BANKSHARES, INC.

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 15, 2025 NICOLET BANKSHARES,

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 15, 2025 NICOLET BANKSHARES, INC. (Exact name of registrant as specified in its charter) Wisconsin 001-37700 47-0871001 (State or other jurisdiction of incorporation) (Commission

. NICOLET BANKSHARES, INC. ANNOUNCES RECORD QUARTERLY NET INCOME FOR SECOND QUARTER 2025

Exhibit 99.1 FOR IMMEDIATE RELEASE . NICOLET BANKSHARES, INC. ANNOUNCES RECORD QUARTERLY NET INCOME FOR SECOND QUARTER 2025 •Record quarterly net income of $36 million for second quarter 2025, compared to net income of $33 million in prior quarter, and net income of $29 million for second quarter 2024 •Quarterly return on average assets of 1.62%, the highest level since the March 2023 balance shee

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 þ 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 001-37700 (Nicolet Bankshares, Inc.) A. Full t

Regulation FD Disclosure, 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 19, 2025 NICOLET BANKSHARES, INC. (Exact name of registrant as specified in its charter) Wisconsin 001-37700 47-0871001 (State or other jurisdiction of incorporation) (Commission

NICOLET BANKSHARES, INC. DECLARES CASH DIVIDEND TO SHAREHOLDERS

Exhibit 99.1 FOR IMMEDIATE RELEASE NICOLET BANKSHARES, INC. DECLARES CASH DIVIDEND TO SHAREHOLDERS Green Bay, Wisconsin, May 20, 2025 - Nicolet Bankshares, Inc. (NYSE: NIC) (“Nicolet”) announced its Board of Directors has declared a quarterly cash dividend of $0.32 per share to shareholders of its common stock, an increase of $0.04 per share, or 14% over the prior quarter. The dividend will be pay

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

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2025 ☐ 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: 001-37700 NICOLET BANKSHARES, INC

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 15, 2025 NICOLET BANKSHARES, INC. (Exact name of registrant as specified in its charter) Wisconsin 001-37700 47-0871001 (State or other jurisdiction of incorporation) (Commissio

. NICOLET BANKSHARES, INC. ANNOUNCES FIRST QUARTER 2025 RESULTS

Exhibit 99.1 FOR IMMEDIATE RELEASE . NICOLET BANKSHARES, INC. ANNOUNCES FIRST QUARTER 2025 RESULTS •Net income $33 million for first quarter 2025, compared to net income of $34 million in prior quarter, and net income of $28 million for first quarter 2024 •Solid loan growth of $119 million (2%) from year end 2024 •Core deposits increased $62 million (1%) from year end 2024 •Repurchased 233,207 com

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 ý Filed by a Party other than the Registrant o Check the appropriate box: o Preliminary Proxy Statement o Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(

Years Ended December 31, Condensed Consolidated Statements of Income 2024 2023 % Change Net interest income $268,065 $241,516 11% Provision for credit losses 3,850 4,990 -23% Noninterest income 82,267 35,972 129% Noninterest expense 191,353 185,866 3

Years Ended December 31, Condensed Consolidated Statements of Income 2024 2023 % Change Net interest income $268,065 $241,516 11% Provision for credit losses 3,850 4,990 -23% Noninterest income 82,267 35,972 129% Noninterest expense 191,353 185,866 3% Income before income tax expense 155,129 86,632 79% Income tax expense 31,070 25,116 24% Net income $124,059 $61,516 102% Return on average assets 1.

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 ý Filed by a Party other than the Registrant o Check the appropriate box: o Preliminary Proxy Statement o Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(

NICOLET BANKSHARES, INC. DECLARES CASH DIVIDEND TO SHAREHOLDERS

Exhibit 99.1 FOR IMMEDIATE RELEASE NICOLET BANKSHARES, INC. DECLARES CASH DIVIDEND TO SHAREHOLDERS Green Bay, Wisconsin, February 25, 2025 - Nicolet Bankshares, Inc. (NYSE: NIC) (“Nicolet”) announced its Board of Directors has declared a quarterly cash dividend of $0.28 per share to shareholders of its common stock. The dividend will be payable on March 17, 2025, to shareholders of record as of Ma

Employment Agreement, dated April 15, 2024, by and among the Registrant, Nicolet National Bank and William Bohn

Exhibit 10.12 EMPLOYMENT AGREEMENT (Senior Leadership) THIS EMPLOYMENT AGREEMENT (collectively referred to with all exhibits and amendments as this “Agreement”) is executed on April 15, 2024 by and among (i) NICOLET NATIONAL BANK (“Bank”), a national banking association formed under the laws of the United States and a wholly-owned subsidiary of NICOLET BANKSHARES, INC. (“Company”), a bank holding

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 25, 2025 NICOLET BANKSHA

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 25, 2025 NICOLET BANKSHARES, INC. (Exact name of registrant as specified in its charter) Wisconsin 001-37700 47-0871001 (State or other jurisdiction of incorporation) (Commis

Insider trading policies and procedures

Exhibit 19.1 INSIDER TRADING POLICY Background: This Insider Trading Policy (the “Policy”) provides guidelines with respect to transactions in the securities of Nicolet Bankshares, Inc. (with its subsidiaries, collectively, “Nicolet”) and the handling of confidential information about Nicolet and the companies with which Nicolet does business or otherwise interacts. Nicolet’s Board of Directors (t

Subsidiaries of Nicolet Bankshares, Inc.

Exhibit 21.1 Subsidiaries of Nicolet Bankshares, Inc.: Name of Subsidiary State or Other Jurisdiction of Incorporation or Organization Equity Interest Held by Registrant Nicolet National Bank National bank organized under the laws of the United States of America 100% Nicolet Advisory Services, LLC Wisconsin limited liability company 100% Nicolet Insurance Services, LLC Wisconsin limited liability

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

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2024 ☐ 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 001-37700 NICOLET BANKSHARES, I

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): January 21, 2025 NICOLET BANKSHARES, INC. (Exact name of registrant as specified in its charter) Wisconsin 001-37700 47-0871001 (State or other jurisdiction of incorporation) (Commiss

. NICOLET BANKSHARES, INC. ANNOUNCES 2024 RESULTS

Exhibit 99.1 FOR IMMEDIATE RELEASE . NICOLET BANKSHARES, INC. ANNOUNCES 2024 RESULTS •Net income $34 million for fourth quarter 2024, compared to net income of $33 million in prior quarter, and net income of $31 million for fourth quarter 2023 •Net income of $124 million or adjusted net income (non-GAAP) of $121 million for 2024, compared to net income of $62 million or adjusted net income (non-GA

NICOLET BANKSHARES, INC. DECLARES CASH DIVIDEND TO SHAREHOLDERS

Exhibit 99.1 FOR IMMEDIATE RELEASE NICOLET BANKSHARES, INC. DECLARES CASH DIVIDEND TO SHAREHOLDERS Green Bay, Wisconsin, November 19, 2024 - Nicolet Bankshares, Inc. (NYSE: NIC) (“Nicolet”) announced its Board of Directors has declared a quarterly cash dividend of $0.28 per share to shareholders of its common stock. The dividend will be payable on December 16, 2024, to shareholders of record as of

Regulation FD Disclosure, 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): November 19, 2024 NICOLET BANKSHARES, INC. (Exact name of registrant as specified in its charter) Wisconsin 001-37700 47-0871001 (State or other jurisdiction of incorporation) (Commis

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

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2024 ☐ 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: 001-37700 NICOLET BANKSHARES,

. NICOLET BANKSHARES, INC. ANNOUNCES THIRD QUARTER 2024 RESULTS

Exhibit 99.1 FOR IMMEDIATE RELEASE . NICOLET BANKSHARES, INC. ANNOUNCES THIRD QUARTER 2024 RESULTS •Net income $33 million for third quarter 2024, compared to net income of $29 million in prior quarter, and net income of $17 million for third quarter 2023 •Net income of $90 million or adjusted net income (non-GAAP) of $87 million for the first nine months of 2024, compared to net income of $31 mil

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 15, 2024 NICOLET BANKSHARES, INC. (Exact name of registrant as specified in its charter) Wisconsin 001-37700 47-0871001 (State or other jurisdiction of incorporation) (Commiss

NICOLET BANKSHARES, INC. DECLARES CASH DIVIDEND TO SHAREHOLDERS

Exhibit 99.1 FOR IMMEDIATE RELEASE NICOLET BANKSHARES, INC. DECLARES CASH DIVIDEND TO SHAREHOLDERS Green Bay, Wisconsin, August 20, 2024 - Nicolet Bankshares, Inc. (NYSE: NIC) (“Nicolet”) announced its Board of Directors has declared a quarterly cash dividend of $0.28 per share to shareholders of its common stock. The dividend will be payable on September 16, 2024, to shareholders of record as of

Regulation FD Disclosure, 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): August 20, 2024 NICOLET BANKSHARES, INC. (Exact name of registrant as specified in its charter) Wisconsin 001-37700 47-0871001 (State or other jurisdiction of incorporation) (Commissi

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

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2024 ☐ 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: 001-37700 NICOLET BANKSHARES, INC.

Employment Agreement, dated April 15, 2024, by and among the Registrant, Nicolet National Bank and William Bohn

EMPLOYMENT AGREEMENT (Senior Leadership) THIS EMPLOYMENT AGREEMENT (collectively referred to with all exhibits and amendments as this “Agreement”) is executed on April 15, 2024 by and among (i) NICOLET NATIONAL BANK (“Bank”), a national banking association formed under the laws of the United States and a wholly-owned subsidiary of NICOLET BANKSHARES, INC.

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 16, 2024 NICOLET BANKSHARES, INC. (Exact name of registrant as specified in its charter) Wisconsin 001-37700 47-0871001 (State or other jurisdiction of incorporation) (Commission

. NICOLET BANKSHARES, INC. ANNOUNCES SECOND QUARTER 2024 RESULTS

Exhibit 99.1 FOR IMMEDIATE RELEASE . NICOLET BANKSHARES, INC. ANNOUNCES SECOND QUARTER 2024 RESULTS •Net income $29 million for second quarter 2024, compared to net income of $28 million in prior quarter, and net income of $23 million for second quarter 2023 •Net income of $57 million or adjusted net income (non-GAAP) of $55 million for first half 2024, compared to net income of $14 million or adj

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 þ 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 001-37700 (Nicolet Bankshares, Inc.) A. Full t

NICOLET BANKSHARES, INC. DECLARES CASH DIVIDEND TO SHAREHOLDERS

Exhibit 99.1 FOR IMMEDIATE RELEASE NICOLET BANKSHARES, INC. DECLARES CASH DIVIDEND TO SHAREHOLDERS Green Bay, Wisconsin, May 20, 2024 - Nicolet Bankshares, Inc. (NYSE: NIC) (“Nicolet”) announced its Board of Directors has declared a quarterly cash dividend of $0.28 per share to shareholders of its common stock, an increase of $0.03 per share, or 12% over the prior quarter. The dividend will be pay

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, 2024 NICOLET BANKSHARES,

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, 2024 NICOLET BANKSHARES, INC. (Exact name of registrant as specified in its charter) Wisconsin 001-37700 47-0871001 (State or other jurisdiction of incorporation) (Commission

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

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2024 ☐ 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: 001-37700 NICOLET BANKSHARES, INC

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 16, 2024 NICOLET BANKSHARES, INC. (Exact name of registrant as specified in its charter) Wisconsin 001-37700 47-0871001 (State or other jurisdiction of incorporation) (Commissio

. NICOLET BANKSHARES, INC. ANNOUNCES FIRST QUARTER 2024 RESULTS

Exhibit 99.1 FOR IMMEDIATE RELEASE . NICOLET BANKSHARES, INC. ANNOUNCES FIRST QUARTER 2024 RESULTS •Well positioned to be opportunistic ◦Net income of $28 million or adjusted net income (non-GAAP) of $26 million for first quarter 2024, compared to net income of $31 million or adjusted net income (non-GAAP) of $28 million in prior quarter, and net loss of $9 million or adjusted net income (non-GAAP

Nicolet National Bank Hires William Bohn to Lead Wealth Management and Private Client Services

Exhibit 99.1 FOR IMMEDIATE RELEASE Nicolet National Bank Hires William Bohn to Lead Wealth Management and Private Client Services Green Bay, Wisconsin, March 26, 2024 - Nicolet National Bank (“Nicolet”), the operating entity of bank holding company Nicolet Bankshares, Inc. (NYSE: NIC), today announced the hiring of William Bohn as Executive Vice President, Wealth Management, Private Client and Tru

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): March 26, 2024 NICOLET BANKSHARES

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): March 26, 2024 NICOLET BANKSHARES, INC. (Exact name of registrant as specified in its charter) Wisconsin 001-37700 47-0871001 (State or other jurisdiction of incorporation) (Commissio

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 ý Filed by a Party other than the Registrant o Check the appropriate box: o Preliminary Proxy Statement o Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(

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 ý Filed by a Party other than the Registrant o Check the appropriate box: o Preliminary Proxy Statement o Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(

10 Years Ended December 31, Condensed Consolidated Statements of Income 2023 2022 % Change Net interest income $241,516 $239,961 1% Provision for credit losses 4,990 11,500 -57% Noninterest income 35,972 57,920 -38% Noninterest expense 185,866 160,64

10 Years Ended December 31, Condensed Consolidated Statements of Income 2023 2022 % Change Net interest income $241,516 $239,961 1% Provision for credit losses 4,990 11,500 -57% Noninterest income 35,972 57,920 -38% Noninterest expense 185,866 160,644 16% Income before income tax expense 86,632 125,737 -31% Income tax expense 25,116 31,477 -20% Net income $61,516 $94,260 -35% Return on average assets 0.

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

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2023 ☐ 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 001-37700 NICOLET BANKSHARES, I

Policy relating to recovery of erroneously awarded compensation

Exhibit 97.1 NICOLET BANKSHARES, INC. INCENTIVE COMPENSATION POLICY (INCLUDING RECOVERY OF ERRONEOUSLY AWARDED INCENTIVE COMPENSATION) The Compensation Committee of Nicolet Bankshares, Inc. (together with its wholly-owned subsidiaries, “Nicolet”) has adopted, and the Nicolet Board of Directors (the “Board”) has approved, this Incentive Compensation Policy (this “Policy”) to provide for overall com

Subsidiaries of Nicolet Bankshares, Inc.

Exhibit 21.1 Subsidiaries of Nicolet Bankshares, Inc.: Name of Subsidiary State or Other Jurisdiction of Incorporation or Organization Equity Interest Held by Registrant Nicolet National Bank National bank organized under the laws of the United States of America 100% Nicolet Advisory Services, LLC Wisconsin limited liability company 100% Nicolet Insurance Services, LLC Wisconsin limited liability

Amended and Restated Employment Agreement, dated February 28, 2024, by and among the Registrant, Nicolet National Bank and Brad V. Hutjens

Exhibit 10.17 RESTATED EMPLOYMENT AGREEMENT (Senior Leadership) THIS RESTATED EMPLOYMENT AGREEMENT (collectively referred to with all exhibits and amendments as this “Agreement”) is made effective on the 28th day of February, 2024 (the “Effective Date”) by and among (i) NICOLET NATIONAL BANK (“Bank”), a national banking association formed under the laws of the United States and a wholly-owned subs

Amended and Restated Employment Agreement, dated February 28, 2024, by and among the Registrant, Nicolet National Bank and Eric J. Witczak

Exhibit 10.15 RESTATED EMPLOYMENT AGREEMENT (Senior Leadership) THIS RESTATED EMPLOYMENT AGREEMENT (collectively referred to with all exhibits and amendments as this “Agreement”) is made effective on the 28th day of February, 2024 (the “Effective Date”) by and among (i) NICOLET NATIONAL BANK (“Bank”), a national banking association formed under the laws of the United States and a wholly-owned subs

NICOLET BANKSHARES, INC. DECLARES CASH DIVIDEND TO SHAREHOLDERS

Exhibit 99.1 FOR IMMEDIATE RELEASE NICOLET BANKSHARES, INC. DECLARES CASH DIVIDEND TO SHAREHOLDERS Green Bay, Wisconsin, February 27, 2024 - Nicolet Bankshares, Inc. (NYSE: NIC) (“Nicolet”) announced its Board of Directors has declared a quarterly cash dividend of $0.25 per share to shareholders of its common stock. The dividend will be payable on March 15, 2024 to shareholders of record as of Mar

Regulation FD Disclosure, 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): February 27, 2024 NICOLET BANKSHARES, INC. (Exact name of registrant as specified in its charter) Wisconsin 001-37700 47-0871001 (State or other jurisdiction of incorporation) (Commis

. NICOLET BANKSHARES, INC. ANNOUNCES 2023 RESULTS

Exhibit 99.1 FOR IMMEDIATE RELEASE . NICOLET BANKSHARES, INC. ANNOUNCES 2023 RESULTS •Net income of $31 million or adjusted net income (non-GAAP) of $28 million for fourth quarter 2023, compared to net income of $17 million or adjusted net income (non-GAAP) of $23 million in prior quarter, and net income of $28 million or adjusted net income (non-GAAP) of $28 million for fourth quarter 2022 •Net i

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): January 16, 2024 NICOLET BANKSHARES, INC. (Exact name of registrant as specified in its charter) Wisconsin 001-37700 47-0871001 (State or other jurisdiction of incorporation) (Commiss

NICOLET BANKSHARES, INC. DECLARES CASH DIVIDEND TO SHAREHOLDERS

Exhibit 99.1 FOR IMMEDIATE RELEASE NICOLET BANKSHARES, INC. DECLARES CASH DIVIDEND TO SHAREHOLDERS Green Bay, Wisconsin, November 21, 2023 - Nicolet Bankshares, Inc. (NYSE: NIC) (“Nicolet”) announced its Board of Directors has declared a quarterly cash dividend of $0.25 per share to shareholders of its common stock. The dividend will be payable on December 15, 2023 to shareholders of record as of

Regulation FD Disclosure, 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): November 21, 2023 NICOLET BANKSHARES, INC. (Exact name of registrant as specified in its charter) Wisconsin 001-37700 47-0871001 (State or other jurisdiction of incorporation) (Commis

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

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2023 ☐ 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: 001-37700 NICOLET BANKSHARES,

Succession Plan and Advisory Services Agreement

EXHIBIT 10.1 November 6, 2023 Mr. Robert Atwell 111 N. Washington Street Green Bay, WI 54301 Re: Succession Plan and Executive Advisory Services Dear Bob: The Board of Directors (the “Board”) of Nicolet Bankshares, Inc. (“Nicolet”) has determined that it is in the best interest of Nicolet and its shareholders to set forth the details of your continued services following the announcement of Nicolet

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 NICOLET BANKSHARES, INC. (Exact name of registrant as specified in its charter) Wisconsin 001-37700 47-0871001 (State or other jurisdiction of incorporation) (Commiss

NICOLET BANKSHARES, INC. ANNOUNCES THIRD QUARTER 2023 RESULTS

Exhibit 99.1 FOR IMMEDIATE RELEASE NICOLET BANKSHARES, INC. ANNOUNCES THIRD QUARTER 2023 RESULTS •Net income of $17 million or adjusted net income (non-GAAP) of $23 million for third quarter 2023, compared to net income of $23 million in prior quarter, and net income of $19 million or adjusted net income (non-GAAP) of $25 million for third quarter 2022 •Net income of $31 million and adjusted net i

Regulation FD Disclosure, 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): August 15, 2023 NICOLET BANKSHARES, INC. (Exact name of registrant as specified in its charter) Wisconsin 001-37700 47-0871001 (State or other jurisdiction of incorporation) (Commissi

NICOLET BANKSHARES, INC. DECLARES CASH DIVIDEND TO SHAREHOLDERS

Exhibit 99.1 FOR IMMEDIATE RELEASE NICOLET BANKSHARES, INC. DECLARES CASH DIVIDEND TO SHAREHOLDERS Green Bay, Wisconsin, August 15, 2023 - Nicolet Bankshares, Inc. (NYSE: NIC) (“Nicolet”) announced its Board of Directors has declared a quarterly cash dividend of $0.25 per share to shareholders of its common stock. The dividend will be payable on September 15, 2023 to shareholders of record as of S

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

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2023 ☐ 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: 001-37700 NICOLET BANKSHARES, INC.

NICOLET BANKSHARES, INC. ANNOUNCES SECOND QUARTER 2023 RESULTS

Exhibit 99.1 FOR IMMEDIATE RELEASE NICOLET BANKSHARES, INC. ANNOUNCES SECOND QUARTER 2023 RESULTS •Net income of $23 million for second quarter 2023 •Net income of $14 million for first six months of 2023, compared to $48 million for first six months of 2022, significantly impacted by first quarter balance sheet repositioning •Quarterly net interest margin of 3.14%, an increase of 23 bps over the

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 18, 2023 NICOLET BANKSHARES,

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 18, 2023 NICOLET BANKSHARES, INC. (Exact name of registrant as specified in its charter) Wisconsin 001-37700 47-0871001 (State or other jurisdiction of incorporation) (Commission

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 þ 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 001-37700 (Nicolet Bankshares, Inc.) A. Full t

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, 2023 NICOLET BANKSHARES,

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, 2023 NICOLET BANKSHARES, INC. (Exact name of registrant as specified in its charter) Wisconsin 001-37700 47-0871001 (State or other jurisdiction of incorporation) (Commission

NICOLET BANKSHARES, INC. DECLARES FIRST CASH DIVIDEND TO SHAREHOLDERS

Exhibit 99.1 FOR IMMEDIATE RELEASE NICOLET BANKSHARES, INC. DECLARES FIRST CASH DIVIDEND TO SHAREHOLDERS Green Bay, Wisconsin, May 15, 2023 - Nicolet Bankshares, Inc. (NYSE: NIC) (“Nicolet”) announced that its Board of Directors has declared its first quarterly cash dividend of $0.25 per share to shareholders of its common stock. The dividend will be payable on June 15, 2023 to shareholders of rec

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

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2023 ☐ 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: 001-37700 NICOLET BANKSHARES, INC

Financial Supplement 1Q 2023 2 Overview of Nicolet Bankshares, Inc. Source: Internal reports (1) As defined in the FDIC Liquidity & Funds Management Manual (2) Excludes deposits over $250k with pledged securities Core Deposit Advantage Core Deposit B

a1q23financialsupplement Financial Supplement 1Q 2023 2 Overview of Nicolet Bankshares, Inc.

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 18, 2023 NICOLET BANKSHARES

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 18, 2023 NICOLET BANKSHARES, INC. (Exact name of registrant as specified in its charter) Wisconsin 001-37700 47-0871001 (State or other jurisdiction of incorporation) (Commissio

NICOLET BANKSHARES, INC. ANNOUNCES FIRST QUARTER 2023 RESULTS AND COMPLETES BALANCE SHEET REPOSITIONING FOR FUTURE GROWTH

Exhibit 99.1 FOR IMMEDIATE RELEASE NICOLET BANKSHARES, INC. ANNOUNCES FIRST QUARTER 2023 RESULTS AND COMPLETES BALANCE SHEET REPOSITIONING FOR FUTURE GROWTH •Non-core moves result in $9 million loss (GAAP) while core banking operations earned $22 million (Non-GAAP) in first quarter •Sold $500 million in held to maturity securities to reposition balance sheet for future growth •Reduction in wholesa

2022 Annual Report The 3 Circles image on the cover hangs in our Grand Chute branch, located in a region of Wisconsin known as the Paper Valley. This region is where many paper mills started and where some still operate. The economy flourished in thi

a2022nnbannualreportfors 2022 Annual Report The 3 Circles image on the cover hangs in our Grand Chute branch, located in a region of Wisconsin known as the Paper Valley.

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 ý Filed by a Party other than the Registrant o Check the appropriate box: o Preliminary Proxy Statement o Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(

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

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2022 ☐ 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 001-37700 NICOLET BANKSHARES, I

Subsidiaries of Nicolet Bankshares, Inc.

Exhibit 21.1 Subsidiaries of Nicolet Bankshares, Inc.: Name of Subsidiary State or Other Jurisdiction of Incorporation or Organization Equity Interest Held by Registrant Nicolet National Bank National bank organized under the laws of the United States of America 100% Nicolet Advisory Services, LLC Wisconsin limited liability company 100% Nicolet Insurance Services, LLC Wisconsin limited liability

NICOLET BANKSHARES, INC. ANNOUNCES 2022 EARNINGS

EX-99.1 2 exhibit9914q2022pressrele.htm EX-99.1 Exhibit 99.1 FOR IMMEDIATE RELEASE NICOLET BANKSHARES, INC. ANNOUNCES 2022 EARNINGS •Net income of $28 million or adjusted net income (non-GAAP) of $28 million, compared to net income of $19 million or adjusted net income (non-GAAP) of $25 million in the prior quarter, and net income of $16 million or adjusted net income (non-GAAP) of $24 million in

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): January 17, 2023 NICOLET BANKSHARES, INC. (Exact name of registrant as specified in its charter) Wisconsin 001-37700 47-0871001 (State or other jurisdiction of incorporation) (Commiss

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

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ? QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2022 ? 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: 001-37700 NICOLET BANKSHARES,

NICOLET BANKSHARES, INC. ANNOUNCES THIRD QUARTER 2022 EARNINGS

Exhibit 99.1 FOR IMMEDIATE RELEASE NICOLET BANKSHARES, INC. ANNOUNCES THIRD QUARTER 2022 EARNINGS ?Acquisition of Charter Bankshares, Inc. closed and integrated on August 26, adding approximately $1.1 billion in assets ?Net income of $19 million and adjusted net income (non-GAAP) of $25 million, compared to net income of $24 million in prior quarter and net income of $8 million or adjusted net inc

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, 2022 NICOLET BANKSHARES, INC. (Exact name of registrant as specified in its charter) Wisconsin 001-37700 47-0871001 (State or other jurisdiction of incorporation) (Commiss

Regulation FD Disclosure, 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): August 26, 2022 NICOLET BANKSHARES, INC. (Exact name of registrant as specified in its charter) Wisconsin 001-37700 47-0871001 (State or other jurisdiction of incorporation) (Commissi

Nicolet Bankshares, Inc. Completes Merger with Charter Bankshares, Inc.

Exhibit 99.1 FOR IMMEDIATE RELEASE Nicolet Bankshares, Inc. Completes Merger with Charter Bankshares, Inc. GREEN BAY, WI, August 30, 2022 ? Nicolet Bankshares, Inc. (NYSE: NIC) (?Nicolet?) completed its merger with Charter Bankshares, Inc., (?Charter?), as a result of which, Charter merged with and into Nicolet, with Nicolet being the surviving corporation. Immediately following the merger, Charte

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

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ? QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2022 ? 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: 001-37700 NICOLET BANKSHARES, INC.

NICOLET BANKSHARES, INC. ANNOUNCES SECOND QUARTER 2022 EARNINGS

Exhibit 99.1 FOR IMMEDIATE RELEASE NICOLET BANKSHARES, INC. ANNOUNCES SECOND QUARTER 2022 EARNINGS ?Net income of $24 million, consistent with prior quarter and 31% higher than second quarter 2021 ?Net income of $48 million for first six months of 2022, compared to $37 million for first six months of 2021 ?Earnings per diluted common share of $1.73 and $3.43 for the three and six months ended June

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 19, 2022 NICOLET BANKSHARES, INC. (Exact name of registrant as specified in its charter) Wisconsin 001-37700 47-0871001 (State or other jurisdiction of incorporation) (Commission

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 ? 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 001-37700 (Nicolet Bankshares, Inc.) A. Full t

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 25 NOTIFICATION OF REMOVAL FROM LISTING AND/OR REGISTRATION UNDER SECTION 12(b) OF THE SECURITIES EXCHANGE ACT OF 1934 Commission File Number 001-37700 NICOLET BANKSHARES, I

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 25 NOTIFICATION OF REMOVAL FROM LISTING AND/OR REGISTRATION UNDER SECTION 12(b) OF THE SECURITIES EXCHANGE ACT OF 1934 Commission File Number 001-37700 NICOLET BANKSHARES, INC. The Nasdaq Stock Market LLC (Exact name of Issuer as specified in its charter, and name of Exchange where security is listed and/or registered) 11

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-A FOR REGISTRATION OF CERTAIN CLASSES OF SECURITIES PURSUANT TO SECTION 12(b) OR (g) OF THE SECURITIES EXCHANGE ACT OF 1934 NICOLET BANKSHARES, INC. (Exact name of registr

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-A FOR REGISTRATION OF CERTAIN CLASSES OF SECURITIES PURSUANT TO SECTION 12(b) OR (g) OF THE SECURITIES EXCHANGE ACT OF 1934 NICOLET BANKSHARES, INC. (Exact name of registrant as specified in its charter) Wisconsin 47-0871001 (State or other jurisdiction of incorporation or organization) (I.R.S. Employer Identification N

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 9, 2022 NICOLET BANKSHARES, INC. (Exact name of registrant as specified in its charter) Wisconsin 001-37700 47-0871001 (State or Other Jurisdiction of Incorporation) (Commission F

Nicolet Bankshares, Inc. Announces Transfer of Common Stock listing to the New York Stock Exchange

Exhibit 99.1 FOR IMMEDIATE RELEASE Nicolet Bankshares, Inc. Announces Transfer of Common Stock listing to the New York Stock Exchange GREEN BAY, WI, May 9, 2022 ? Nicolet Bankshares, Inc. (NASDAQ: NCBS) (?Nicolet? or the ?Company?) today announced that it is transferring the listing of its common stock to the New York Stock Exchange (?NYSE?) from The Nasdaq Stock Market LLC (?Nasdaq?). The Company

Regulation FD Disclosure, Notice of Delisting or Failure to Satisfy a Continued Listing Rule or Standard; Transfer of Listing, 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 4, 2022 NICOLET BANKSHARES, INC. (Exact name of registrant as specified in its charter) Wisconsin 001-37700 47-0871001 (State or Other Jurisdiction of Incorporation) (Commission F

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

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ? QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2022 ? 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: 001-37700 NICOLET BANKSHARES, INC

NICOLET BANKSHARES, INC. ANNOUNCES FIRST QUARTER 2022 EARNINGS

Exhibit 99.1 FOR IMMEDIATE RELEASE NICOLET BANKSHARES, INC. ANNOUNCES FIRST QUARTER 2022 EARNINGS ?Net income of $24 million, compared to $16 million in prior quarter and $18 million in first quarter 2021 ?Earnings per diluted common share of $1.70, compared to $1.25 in prior quarter and $1.75 in first quarter 2021 ?Return on average assets of 1.30% for first quarter 2022 ?Return on average common

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 19, 2022 NICOLET BANKSHARES, INC. (Exact name of registrant as specified in its charter) Wisconsin 001-37700 47-0871001 (State or other jurisdiction of incorporation) (Commissio

DRAFT Acquisition of Charter Bankshares, Inc. March 30, 2022 Working with Marketing on new style & color scheme throughout DRAFTSecurities Legend Forward Looking Statements “Safe Harbor” Statement Under the Private Securities Litigation Reform Act of

DRAFT Acquisition of Charter Bankshares, Inc. March 30, 2022 Working with Marketing on new style & color scheme throughout DRAFTSecurities Legend Forward Looking Statements ?Safe Harbor? Statement Under the Private Securities Litigation Reform Act of 1995 Certain statements contained in this communication, which are not statements of historical fact, constitute forward-looking statements within th

Nicolet Bankshares, Inc. Continues Strategic Growth with Acquisition of Charter Bankshares, Inc.

Exhibit 99.1 FOR IMMEDIATE RELEASE Nicolet Bankshares, Inc. Continues Strategic Growth with Acquisition of Charter Bankshares, Inc. ?Adds the ?lead local? community bank in the Eau Claire MSA ?Solid first year EPS accretion and accretive to tangible book value ?Charter Bank CEO, Paul Kohler, to remain with Nicolet leading the Western Wisconsin & Twin Cities markets GREEN BAY, WI and EAU CLAIRE, WI

Entry into a Material Definitive Agreement, 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): March 30, 2022 NICOLET BANKSHARES, INC. (Exact name of registrant as specified in its charter) Wisconsin 001-37700 47-0871001 (State or other jurisdiction of incorporation) (Commissio

Agreement and Plan of Merger By and Between Nicolet Bankshares, Inc. and Charter Bankshares, Inc. dated March 29, 2022

EXHIBIT 2.1 AGREEMENT AND PLAN OF MERGER BY AND BETWEEN NICOLET BANKSHARES, INC. AND CHARTER BANKSHARES, INC. MARCH 29, 2022 TABLE OF CONTENTS Article 1 THE MERGER 1 Section 1.1 The Merger 1 Section 1.2 Effective Time; Closing 1 Section 1.3 Effects of the Merger 2 Section 1.4 Organizational Documents of the Surviving Entity 2 Section 1.5 Directors and Officers of the Surviving Entity 2 Section 1.6

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 ? Filed by a Party other than the Registrant o Check the appropriate box: o Preliminary Proxy Statement o Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(

Amended and Restated Employment Agreement, dated March 7, 2019, by and among the Registrant, Nicolet National Bank and Patrick J. Madson

Exhibit 10.14 AMENDED AND RESTATED EMPLOYMENT AGREEMENT THIS AMENDED AND RESTATED EMPLOYMENT AGREEMENT is made as of the 7th day of March, 2019 (the ?Agreement?) by and among (i) NICOLET NATIONAL BANK (the ?Bank?), a National Bank organized under the laws of the State of Wisconsin, a wholly owned subsidiary of NICOLET BANKSHARES, INC. (the ?Company?), a bank holding company organized under the law

Subsidiaries of Nicolet Bankshares, Inc.

Exhibit 21.1 Subsidiaries of Nicolet Bankshares, Inc.: Name and jurisdiction of incorporation/organization Equity Interest Held by Registrant Nicolet National Bank, organized under the laws of the United States of America 100% Nicolet Advisory Services, LLC, a Wisconsin limited liability company 100% Nicolet Insurance Services, LLC, a Wisconsin limited liability company 100 % In addition to the su

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

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K ? ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2021 ? 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 001-37700 NICOLET BANKSHARES, I

NICOLET BANKSHARES, INC. ANNOUNCES 2021 EARNINGS

Exhibit 99.1 FOR IMMEDIATE RELEASE NICOLET BANKSHARES, INC. ANNOUNCES 2021 EARNINGS ?Acquisition of County Bancorp, Inc. closed on December 3, adding approximately $1.4 billion in assets ?Net income of $16 million, compared to $8 million in prior quarter and $18 million in fourth quarter 2020, significantly impacted by our recent acquisitions ?Net income of $61 million and adjusted net income (non

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): January 18, 2022 NICOLET BANKSHARES, INC. (Exact name of registrant as specified in its charter) Wisconsin 001-37700 47-0871001 (State or other jurisdiction of incorporation) (Commiss

Regulation FD Disclosure, 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): December 21, 2021 NICOLET BANKSHARES, INC. (Exact name of registrant as specified in its charter) Wisconsin 001-37700 47-0871001 (State or other jurisdiction of incorporation) (Commis

Nicolet Bankshares, Inc. Announces Increase to Stock Repurchase Program

Exhibit 99.1 FOR IMMEDIATE RELEASE Nicolet Bankshares, Inc. Announces Increase to Stock Repurchase Program GREEN BAY, WI, December 22, 2021 ? Nicolet Bankshares, Inc. (NASDAQ: NCBS) (?Nicolet? or the ?Company?), the holding company of Nicolet National Bank, a Wisconsin-based community bank, announced that its Board of Directors authorized an increase to the Company?s common stock repurchase progra

Regulation FD Disclosure, 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): December 10, 2021 NICOLET BANKSHARES, INC. (Exact name of registrant as specified in its charter) Wisconsin 001-37700 47-0871001 (State or other jurisdiction of incorporation) (Commis

Nicolet Bankshares, Inc. Completes Branch Consolidations and Closures

Exhibit 99.1 FOR IMMEDIATE RELEASE Nicolet Bankshares, Inc. Completes Branch Consolidations and Closures GREEN BAY, WI December 13, 2021? Nicolet Bankshares, Inc. (NASDAQ: NCBS) (?Nicolet?) completed its consolidation and closure of fifteen branches effective December 10, 2021. This move comes on the heels of completing two mergers ? Mackinac Financial Corporation on September 3, 2021, and County

UNAUDITED PRO FORMA CONDENSED COMBINED FINANCIAL INFORMATION

Exhibit 99.4 UNAUDITED PRO FORMA CONDENSED COMBINED FINANCIAL INFORMATION The following unaudited pro forma condensed combined financial information and accompanying notes show the impact on the historical financial conditions and results of operations of Nicolet and County and have been prepared to illustrate the effects of the County merger under the acquisition method of accounting. The unaudit

COUNTY BANCORP, INC. AND SUBSIDIARIES CONSOLIDATED BALANCE SHEETS September 30, 2021 and December 31, 2020

Exhibit 99.3 Item 1. Financial Statements. COUNTY BANCORP, INC. AND SUBSIDIARIES CONSOLIDATED BALANCE SHEETS September 30, 2021 and December 31, 2020 September 30, 2021 December 31, 2020 (unaudited) (dollars in thousands except per share data) ASSETS Cash and cash equivalents $ 105,131 $ 19,084 Interest earning cash at other financial institutions 417 416 Securities available-for-sale, at fair val

Report of Independent Registered Public Accounting Firm

Exhibit 99.2 Report of Independent Registered Public Accounting Firm To the Stockholders and Board of Directors County Bancorp, Inc. Opinion on the Consolidated Financial Statements We have audited the accompanying consolidated balance sheets of County Bancorp, Inc. and subsidiaries (the ?Company?) as of December 31, 2020 and 2019; the related consolidated statements of operations, comprehensive i

Nicolet Bankshares, Inc. Completes Merger with County Bancorp, Inc.

Exhibit 99.1 FOR IMMEDIATE RELEASE Nicolet Bankshares, Inc. Completes Merger with County Bancorp, Inc. GREEN BAY, WI December 6, 2021? Nicolet Bankshares, Inc. (NASDAQ: NCBS) (?Nicolet?) completed its merger with County Bancorp, Inc., (NASDAQ: ICBK) (?County?), as a result of which, County merged with and into Nicolet, with Nicolet being the surviving corporation. Immediately following the merger,

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits, Completion of Acquisition or Disposition of Assets, 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): December 3, 2021 NICOLET BANKSHARES, INC. (Exact name of registrant as specified in its charter) Wisconsin 001-37700 47-0871001 (State or other jurisdiction of incorporation) (Commiss

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

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ? QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2021 ? 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: 001-37700 NICOLET BANKSHARES,

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 19, 2021 NICOLET BANKSHAR

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 19, 2021 NICOLET BANKSHARES, INC. (Exact name of registrant as specified in its charter) Wisconsin 001-37700 47-0871001 (State or other jurisdiction of incorporation) (Commiss

NICOLET BANKSHARES, INC. ANNOUNCES THIRD QUARTER 2021 EARNINGS

Exhibit 99.1 FOR IMMEDIATE RELEASE NICOLET BANKSHARES, INC. ANNOUNCES THIRD QUARTER 2021 EARNINGS ?Acquisition of Mackinac Financial Corporation closed and integrated on September 3, adding approximately $1.5 billion in assets ?Net income of $7.8 million, compared to $18.3 million in prior quarter and $18.1 million in third quarter 2020, significantly impacted by the Mackinac acquisition ?Net inco

NICOLET BANKSHARES, INC. ANNOUNCES THIRD QUARTER 2021 EARNINGS

Exhibit 99.1 FOR IMMEDIATE RELEASE NICOLET BANKSHARES, INC. ANNOUNCES THIRD QUARTER 2021 EARNINGS ?Acquisition of Mackinac Financial Corporation closed and integrated on September 3, adding approximately $1.5 billion in assets ?Net income of $7.8 million, compared to $18.3 million in prior quarter and $18.1 million in third quarter 2020, significantly impacted by the Mackinac acquisition ?Net inco

Financial Statements and Exhibits, Results of Operations and Financial Condition, 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): October 19, 2021 NICOLET BANKSHARES, INC. (Exact name of registrant as specified in its charter) Wisconsin 001-37700 47-0871001 (State or other jurisdiction of incorporation) (Commiss

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): October 5, 2021 NICOLET BANKSHARES, INC. (Exact name of registrant as specified in its charter) Wisconsin 001-37700 47-0871001 (State or other jurisdiction of incorporation) (Commissi

Nicolet Bankshares, Inc. Offer to Exchange Up to $100,000,000 aggregate principal amount of 3.125% Fixed-to-Floating Rate Subordinated Notes due 2031 that have been registered under the Securities Act of 1933 for any and all outstanding unregistered

Filed Pursuant to Rule 424(b)(3) Registration No. 333-259128 PROSPECTUS Nicolet Bankshares, Inc. Offer to Exchange Up to $100,000,000 aggregate principal amount of 3.125% Fixed-to-Floating Rate Subordinated Notes due 2031 that have been registered under the Securities Act of 1933 for any and all outstanding unregistered 3.125% Fixed-to-Floating Rate Subordinated Notes due 2031 ? The exchange offer

NICOLET BANKSHARES, INC. 111 NORTH WASHINGTON STREET GREEN BAY, WISCONSIN 54301 (920) 430-1400

NICOLET BANKSHARES, INC. 111 NORTH WASHINGTON STREET GREEN BAY, WISCONSIN 54301 (920) 430-1400 September 10, 2021 Via Edgar U.S. Securities and Exchange Commission 100 F Street, N.E. Washington, D.C. 20549 Attention: Eric Envall Re: Request for Acceleration of Effectiveness Nicolet Bankshares, Inc. (the ?Company?) Pre-Effective Amendment No. 1 to Registration Statement on Form S-4 Filed September

As filed with the Securities and Exchange Commission on September 10, 2021

As filed with the Securities and Exchange Commission on September 10, 2021 Registration No.

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 7, 2021 NICOLET BANKSHA

425 1 ncbs-992021form8xkcover.htm 425 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 7, 2021 NICOLET BANKSHARES, INC. (Exact name of registrant as specified in its charter) Wisconsin 001-37700 47-0871001 (State or other

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): September 7, 2021 NICOLET BANKSHARES, INC. (Exact name of registrant as specified in its charter) Wisconsin 001-37700 47-0871001 (State or other jurisdiction of incorporation) (Commis

UNAUDITED PRO FORMA CONDENSED COMBINED FINANCIAL INFORMATION

Exhibit 99.4 UNAUDITED PRO FORMA CONDENSED COMBINED FINANCIAL INFORMATION The following unaudited pro forma condensed combined financial information and accompanying notes show the impact on the historical financial conditions and results of operations of Nicolet and Mackinac and have been prepared to illustrate the effects of the Mackinac merger under the acquisition method of accounting. The una

Nicolet Bankshares, Inc. Announces Branch Optimization Strategy To Better Align With Customer Actions Nicolet announces reduction in branch locations, agreement to sell Birmingham, Michigan location to Bank of Ann Arbor, and completion of mBank acqui

Exhibit 99.1 FOR IMMEDIATE RELEASE Nicolet Bankshares, Inc. Announces Branch Optimization Strategy To Better Align With Customer Actions Nicolet announces reduction in branch locations, agreement to sell Birmingham, Michigan location to Bank of Ann Arbor, and completion of mBank acquisition GREEN BAY, WI, September 7, 2021 ? Nicolet Bankshares, Inc. (NASDAQ: NCBS) (?Nicolet?) announced today that

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits, Completion of Acquisition or Disposition of Assets, 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): September 3, 2021 NICOLET BANKSHARES, INC. (Exact name of registrant as specified in its charter) Wisconsin 001-37700 47-0871001 (State or other jurisdiction of incorporation) (Commis

PROXY STATEMENT AND PROSPECTUS OF NICOLET BANKSHARES, INC.

TABLE OF CONTENTS ?Filed Pursuant to Rule 424(b)(3)? ?Registration No. 333-258651? ? ? ? ? ? PROXY STATEMENT AND PROSPECTUS OF NICOLET BANKSHARES, INC. ? ? PROXY STATEMENT OF COUNTY BANCORP, INC. ? PROPOSED MERGER???YOUR VOTE IS VERY IMPORTANT The boards of directors of Nicolet Bankshares, Inc. (?Nicolet?) and County Bancorp, Inc. (?County?) have each unanimously approved a transaction that will r

Form of Letter of Transmittal.

Exhibit 99.1 NICOLET BANKSHARES, INC. LETTER OF TRANSMITTAL To Tender for Exchange 3.125% Fixed-to-Floating Rate Subordinated Notes due 2031 CUSIP # 65406E AA0 and CUSIP # 65406E AB8 (the ?Old Notes?) for 3.125% Fixed-to-Floating Rate Subordinated Notes due 2031 that have been registered under the Securities Act of 1933 (the ?Securities Act?) CUSIP # 65406E AC6 (the ?New Notes?) PURSUANT TO THE PR

Form T-1 Statement of Eligibility under the Trust Indenture Act of 1939, as amended, of U.S. Bank National Association.

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 Check if an Application to Determine Eligibility of a Trustee Pursuant to Section 305(b)(2) ? U.S. BANK NATIONAL ASSOCIATION (Exact name of Trustee as specified in its charter) 31-0841368 I.R.S. Employer Identif

Power of Attorney.*

As filed with the Securities and Exchange Commission on August 27, 2021 Registration No.

NICOLET BANKSHARES, INC. 111 NORTH WASHINGTON STREET GREEN BAY, WISCONSIN 54301 (920) 430-1400

NICOLET BANKSHARES, INC. 111 NORTH WASHINGTON STREET GREEN BAY, WISCONSIN 54301 (920) 430-1400 August 23, 2021 Via Edgar U.S. Securities and Exchange Commission 100 F Street, N.E. Washington, D.C. 20549 Attention: Tonya K. Aldave Re: Request for Acceleration of Effectiveness Nicolet Bankshares, Inc. (the ?Company?) Pre-Effective Amendment No. 1 to Registration Statement on Form S-4/A Filed August

Form of Proxy Card of Nicolet.

Exhibit 99.4 MMMMMMMMMMMM IMPORTANT SPECIAL MEETING INFORMATION MMMMMMMMM 000000000.000000 ext 000000000.000000 ext 000000000.000000 ext C123456789 000000000.000000 ext 000000000.000000 ext 000000000.000000 ext MR A SAMPLE DESIGNATION (IF ANY) ADD 1 ADD 2 ADD 3 ADD 4 ADD 5 ADD 6 Using a black ink pen, mark your votes with an X as shown in this example. Please do not write outside the designated ar

As filed with the Securities and Exchange Commission on August 23, 2021

TABLE OF CONTENTS As filed with the Securities and Exchange Commission on August 23, 2021 Registration No.

Consent of Keefe, Bruyette & Woods, Inc.

Exhibit 99.2 CONSENT OF KEEFE, BRUYETTE & WOODS, INC. We hereby consent to the inclusion of our opinion letter to the Board of Directors of Nicolet Bankshares, Inc. (?Nicolet?), as Annex C to the Joint Proxy Statement/Prospectus which forms a part of Amendment No. 1 to the Registration Statement on Form S-4 (file No. 333-258651) filed on the date hereof (the ?Amended Registration Statement?) relat

Lynn D. Davis — Consent to be Named as a Director Nominee.

Exhibit 99.3 Consent to be Named as a Director Nominee In connection with the filing by Nicolet Bankshares, Inc. of the Registration Statement (No. 333-258651) on Form S-4 with the Securities and Exchange Commission under the Securities Act of 1933, as amended (the ?Securities Act?), I hereby consent, pursuant to Rule 438 of the Securities Act, to being a nominee to the board of directors of Nicol

Form of Proxy Card of County.

Exhibit 99.5 COUNTY BANCORP, INC. 2400 S. 44TH ST., PO BOX 700 MANITOWC, WI 54221-0700 VOTE BY INTERNET - www.proxyvote.com Use the Internet to transmit your voting instructions and for electronic delivery of information. Vote by 11:59 P.M. ET on 10/04/2021. Have your proxy card in hand when you access the web site and follow the instructions to obtain your records and to create an electronic voti

Form of Election Form and Letter of Transmittal.

Exhibit 99.6 MR A SAMPLE DESIGNATION (IF ANY) ADD 1 ADD 2 ADD 3 ADD 4 ADD 5 ADD 6 Computershare PO Box 505000 Louisville, KY 40233-5000 Within USA, US territories & Canada 800-546-5141 Outside USA, US territories & Canada 781-575-2765 www.computershare.com/investor C 1234567890J N T Tax ID certification on file: TOTAL SHARES12345678901234 TIME IS CRITICAL. PLEASE COMPLETE AND RETURN PROMPTLY IN AC

attached to the joint proxy statement-prospectus, which is part of this registration statement and incorporated herein by reference).

TABLE OF CONTENTS As filed with the Securities and Exchange Commission on August 9, 2021 Registration No.

Consent of Keefe, Bruyette & Woods, Inc.

EX-99.2 8 tm2124163d2ex99-2.htm EXHIBIT 99.2 Exhibit 99.2 CONSENT OF KEEFE, BRUYETTE & WOODS, INC. We hereby consent to the inclusion of our opinion letter to the Board of Directors of Nicolet Bankshares, Inc. (“Nicolet”), as Appendix C to the Joint Proxy Statement/Prospectus which forms a part of the Registration Statement on Form S-4 filed on the date hereof (the “Registration Statement”) relati

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

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ? QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2021 ? 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: 001-37700 NICOLET BANKSHARES, INC.

Regulation FD Disclosure, 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 NICOLET BANKSHARES, INC. (Exact name of registrant as specified in its charter) Wisconsin 001-37700 47-0871001 (State or other jurisdiction of incorporation) (Commission

Nicolet Bankshares, Inc. Appoints Héctor Colón to Board of Directors

Exhibit 99.1 FOR IMMEDIATE RELEASE Nicolet Bankshares, Inc. Appoints H?ctor Col?n to Board of Directors GREEN BAY, WI July 20, 2021 ? Nicolet Bankshares, Inc. (NASDAQ: NCBS) (?Nicolet?), the holding company for Nicolet National Bank, today announced the appointment of H?ctor Col?n to Nicolet?s Board of Directors. Mr. Col?n is the President and CEO of Lutheran Social Services of Wisconsin and Upper

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 NICOLET BANKSHARES,

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 NICOLET BANKSHARES, INC. (Exact name of registrant as specified in its charter) Wisconsin 001-37700 47-0871001 (State or other jurisdiction of incorporation) (Commission

NICOLET BANKSHARES, INC. ANNOUNCES SECOND QUARTER 2021 EARNINGS

Exhibit 99.1 FOR IMMEDIATE RELEASE NICOLET BANKSHARES, INC. ANNOUNCES SECOND QUARTER 2021 EARNINGS ?Net income of $18.3 million, consistent with first quarter 2021 and 36% higher than second quarter 2020 ?Net income of $36.5 million for first six months of 2021, compared to $24.0 million for first six months of 2020 ?Earnings per diluted common share of $1.77 and $3.52 for the three and six months

Financial Statements and Exhibits, Results of Operations and Financial Condition, 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 20, 2021 NICOLET BANKSHARES, INC. (Exact name of registrant as specified in its charter) Wisconsin 001-37700 47-0871001 (State or other jurisdiction of incorporation) (Commission

NICOLET BANKSHARES, INC. ANNOUNCES SECOND QUARTER 2021 EARNINGS

EX-99.1 2 exhibit9912q2021pressrele.htm EX-99.1 Exhibit 99.1 FOR IMMEDIATE RELEASE NICOLET BANKSHARES, INC. ANNOUNCES SECOND QUARTER 2021 EARNINGS •Net income of $18.3 million, consistent with first quarter 2021 and 36% higher than second quarter 2020 •Net income of $36.5 million for first six months of 2021, compared to $24.0 million for first six months of 2020 •Earnings per diluted common share

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): July 15, 2021 NICOLET BANKSHARES, INC. (Exact name of registrant as specified in its charter) Wisconsin 001-37700 47-0871001 (State or other jurisdiction of incorporation) (Commission

Form of 3.125% Fixed-to-Floating Rate Subordinated Note due 2031 of Nicolet Bankshares, Inc

Exhibit 4.2 FORM OF GLOBAL SUBORDINATED NOTE NICOLET BANKSHARES, INC. 3.125% FIXED TO FLOATING RATE SUBORDINATED NOTE DUE 2031 THE SECURITIES EVIDENCED BY THIS CERTIFICATE HAVE NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE ?SECURITIES ACT?) OR UNDER ANY APPLICABLE STATE SECURITIES LAW. THESE SECURITIES MAY NOT BE OFFERED FOR SALE, SOLD, TRANSFERRED OR ASSIGNED (I) IN THE AB

Form of 3.125% Fixed-to-Floating Rate Subordinated Note due 2031 of Nicolet Bankshares, Inc.

Exhibit 4.2 FORM OF GLOBAL SUBORDINATED NOTE NICOLET BANKSHARES, INC. 3.125% FIXED TO FLOATING RATE SUBORDINATED NOTE DUE 2031 THE SECURITIES EVIDENCED BY THIS CERTIFICATE HAVE NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE ?SECURITIES ACT?) OR UNDER ANY APPLICABLE STATE SECURITIES LAW. THESE SECURITIES MAY NOT BE OFFERED FOR SALE, SOLD, TRANSFERRED OR ASSIGNED (I) IN THE AB

Form of Registration Rights Agreement, dated July 7, 2021, by and between Nicolet Bankshares, Inc. and the several Purchasers

Exhibit 10.2 REGISTRATION RIGHTS AGREEMENT This REGISTRATION RIGHTS AGREEMENT (the ?Agreement?) is dated as of July 7, 2021, and is made by and among Nicolet Bankshares, Inc., a Wisconsin corporation (the ?Company?), and the several purchasers of the Subordinated Notes (as defined below) identified on the signature pages to the Purchase Agreement (as defined below) (collectively, the ?Purchasers?)

Nicolet Bankshares, Inc. Completes Private Placement of $100 Million of Subordinated Notes

Exhibit 99.1 FOR IMMEDIATE RELEASE Nicolet Bankshares, Inc. Completes Private Placement of $100 Million of Subordinated Notes GREEN BAY, WI July 7, 2021? Nicolet Bankshares, Inc. (NASDAQ: NCBS) (?Nicolet?) (the ?Company?), the holding company for Nicolet National Bank, today announced the completion of its private placement of $100.0 million in fixed-to-floating rate subordinated notes due 2031 (t

Form of Registration Rights Agreement, dated as of July 7, 2021, by and between Nicolet Bankshares, Inc. and the several Purchasers.

Exhibit 10.2 REGISTRATION RIGHTS AGREEMENT This REGISTRATION RIGHTS AGREEMENT (the ?Agreement?) is dated as of July 7, 2021, and is made by and among Nicolet Bankshares, Inc., a Wisconsin corporation (the ?Company?), and the several purchasers of the Subordinated Notes (as defined below) identified on the signature pages to the Purchase Agreement (as defined below) (collectively, the ?Purchasers?)

SUBORDINATED NOTE PURCHASE AGREEMENT

Exhibit 10.1 SUBORDINATED NOTE PURCHASE AGREEMENT This SUBORDINATED NOTE PURCHASE AGREEMENT (this ?Agreement?) is dated as of July 7, 2021 and is made by and among Nicolet Bankshares, Inc., a Wisconsin corporation (the ?Company?), and the several purchasers of the Subordinated Notes (as defined herein) identified on the signature pages hereto (each a ?Purchaser? and collectively, the ?Purchasers?)

Indenture, dated as of July 7, 2021, by and between Nicolet Bankshares, Inc. and U.S. Bank National Association, as trustee

Exhibit 4.1 NICOLET BANKSHARES, INC. as Issuer, and U.S. BANK NATIONAL ASSOCIATION as Trustee INDENTURE Dated as of July 7, 2021 3.125% Fixed-to-Floating Rate Subordinated Notes due 2031 TABLE OF CONTENTS ARTICLE I DEFINITIONS AND INCORPORATION BY REFERENCE 1 Section 101 Definitions. 1 Section 102 Compliance Certificates and Opinions. 7 Section 103 Form of Documents Delivered to Trustee. 7 Section

Nicolet Bankshares, Inc. Completes Private Placement of $100 Million of Subordinated Notes

Exhibit 99.1 FOR IMMEDIATE RELEASE Nicolet Bankshares, Inc. Completes Private Placement of $100 Million of Subordinated Notes GREEN BAY, WI July 7, 2021? Nicolet Bankshares, Inc. (NASDAQ: NCBS) (?Nicolet?) (the ?Company?), the holding company for Nicolet National Bank, today announced the completion of its private placement of $100.0 million in fixed-to-floating rate subordinated notes due 2031 (t

SUBORDINATED DEBT OFFERING INVESTOR PRESENTATION Working with Marketing on new style & color scheme throughout JUNE 2021 Certain Important Information Securities Legend This Subordinated Debt Offering Investor Presentation is confidential and does no

SUBORDINATED DEBT OFFERING INVESTOR PRESENTATION Working with Marketing on new style & color scheme throughout JUNE 2021 Certain Important Information Securities Legend This Subordinated Debt Offering Investor Presentation is confidential and does not constitute or form part of any offer to sell, or a solicitation of an offer to purchase, any securities of Nicolet Bankshares, Inc.

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 7, 2021 NICOLET BANKSHARES,

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 7, 2021 NICOLET BANKSHARES, INC. (Exact name of registrant as specified in its charter) Wisconsin 001-37700 47-0871001 (State or other jurisdiction of incorporation) (Commission

Form of Subordinated Note Purchase Agreement, dated as of July 7, 2021, by and between Nicolet Bankshares, Inc. and the several Purchasers.

Exhibit 10.1 SUBORDINATED NOTE PURCHASE AGREEMENT This SUBORDINATED NOTE PURCHASE AGREEMENT (this ?Agreement?) is dated as of July 7, 2021 and is made by and among Nicolet Bankshares, Inc., a Wisconsin corporation (the ?Company?), and the several purchasers of the Subordinated Notes (as defined herein) identified on the signature pages hereto (each a ?Purchaser? and collectively, the ?Purchasers?)

SUBORDINATED DEBT OFFERING INVESTOR PRESENTATION Working with Marketing on new style & color scheme throughout JUNE 2021 Certain Important Information Securities Legend This Subordinated Debt Offering Investor Presentation is confidential and does no

SUBORDINATED DEBT OFFERING INVESTOR PRESENTATION Working with Marketing on new style & color scheme throughout JUNE 2021 Certain Important Information Securities Legend This Subordinated Debt Offering Investor Presentation is confidential and does not constitute or form part of any offer to sell, or a solicitation of an offer to purchase, any securities of Nicolet Bankshares, Inc.

Regulation FD Disclosure, 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, 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 7, 2021 NICOLET BANKSHARES, INC. (Exact name of registrant as specified in its charter) Wisconsin 001-37700 47-0871001 (State or other jurisdiction of incorporation) (Commission

Indenture, dated as of July 7, 2021, by and between Nicolet Bankshares, Inc. and U.S. Bank National Association, as trustee

Exhibit 4.1 NICOLET BANKSHARES, INC. as Issuer, and U.S. BANK NATIONAL ASSOCIATION as Trustee INDENTURE Dated as of July 7, 2021 3.125% Fixed-to-Floating Rate Subordinated Notes due 2031 TABLE OF CONTENTS ARTICLE I DEFINITIONS AND INCORPORATION BY REFERENCE 1 Section 101 Definitions. 1 Section 102 Compliance Certificates and Opinions. 7 Section 103 Form of Documents Delivered to Trustee. 7 Section

Entry into a Material Definitive Agreement, 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): June 22, 2021 NICOLET BANKSHARES, INC. (Exact name of registrant as specified in its charter) Wisconsin 001-37700 47-0871001 (State or other jurisdiction of incorporation) (Commission

Nicolet Bankshares, Inc. To Acquire County Bancorp, Inc.

Exhibit 99.1 FOR IMMEDIATE RELEASE Nicolet Bankshares, Inc. To Acquire County Bancorp, Inc. GREEN BAY, WI and MANITOWOC, WI, June 22, 2021 ? Nicolet Bankshares, Inc. (NASDAQ: NCBS) (?Nicolet?) and County Bancorp, Inc., (NASDAQ: ICBK) (?County?) today jointly announced the execution of a definitive merger agreement pursuant to which Nicolet will acquire County and its wholly-owned banking subsidiar

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 22, 2021 NICOLET BANKSHARES,

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 22, 2021 NICOLET BANKSHARES, INC. (Exact name of registrant as specified in its charter) Wisconsin 001-37700 47-0871001 (State or other jurisdiction of incorporation) (Commission

Agreement and Plan of Merger Between Nicolet Bankshares, Inc. and County Bancorp, Inc., dated June 22, 2021

EXHIBIT 2.1 AGREEMENT AND PLAN OF MERGER BY AND BETWEEN NICOLET BANKSHARES, INC. AND COUNTY BANCORP, INC. JUNE 22, 2021 TABLE OF CONTENTS Article 1 THE MERGER 1 Section 1.1 The Merger 1 Section 1.2 Effective Time; Closing 1 Section 1.3 Effects of the Merger 2 Section 1.4 Organizational Documents of the Surviving Entity 2 Section 1.5 Directors and Officers of the Surviving Entity 2 Section 1.6 Loca

Agreement and Plan of Merger Between Nicolet Bankshares, Inc. and County Bancorp, Inc. dated June 22, 2021

EXHIBIT 2.1 AGREEMENT AND PLAN OF MERGER BY AND BETWEEN NICOLET BANKSHARES, INC. AND COUNTY BANCORP, INC. JUNE 22, 2021 TABLE OF CONTENTS Article 1 THE MERGER 1 Section 1.1 The Merger 1 Section 1.2 Effective Time; Closing 1 Section 1.3 Effects of the Merger 2 Section 1.4 Organizational Documents of the Surviving Entity 2 Section 1.5 Directors and Officers of the Surviving Entity 2 Section 1.6 Loca

Acquisition of County Bancorp, Inc. June 22, 2021 Working with Marketing on new style & color scheme throughout Securities Legend Forward Looking Statements “Safe Harbor” Statement Under the Private Securities Litigation Reform Act of 1995 Certain st

Acquisition of County Bancorp, Inc. June 22, 2021 Working with Marketing on new style & color scheme throughout Securities Legend Forward Looking Statements ?Safe Harbor? Statement Under the Private Securities Litigation Reform Act of 1995 Certain statements contained in this communication, which are not statements of historical fact, constitute forward-looking statements within the meaning of the

Acquisition of County Bancorp, Inc. June 22, 2021 Working with Marketing on new style & color scheme throughout Securities Legend Forward Looking Statements “Safe Harbor” Statement Under the Private Securities Litigation Reform Act of 1995 Certain st

Acquisition of County Bancorp, Inc. June 22, 2021 Working with Marketing on new style & color scheme throughout Securities Legend Forward Looking Statements ?Safe Harbor? Statement Under the Private Securities Litigation Reform Act of 1995 Certain statements contained in this communication, which are not statements of historical fact, constitute forward-looking statements within the meaning of the

Nicolet Bankshares, Inc. To Acquire County Bancorp, Inc.

Exhibit 99.1 FOR IMMEDIATE RELEASE Nicolet Bankshares, Inc. To Acquire County Bancorp, Inc. GREEN BAY, WI and MANITOWOC, WI, June 22, 2021 ? Nicolet Bankshares, Inc. (NASDAQ: NCBS) (?Nicolet?) and County Bancorp, Inc., (NASDAQ: ICBK) (?County?) today jointly announced the execution of a definitive merger agreement pursuant to which Nicolet will acquire County and its wholly-owned banking subsidiar

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 7, 2021 NICOLET BANKSHARES, INC. (Exact name of registrant as specified in its charter) Wisconsin 001-37700 47-0871001 (State or other jurisdiction of incorporation) (Commission

Employment Agreement, dated June 7, 2021, by and among the Registrant, Nicolet National Bank and H. Phillip Moore, Jr.

Exhibit 10.1 EMPLOYMENT AGREEMENT THIS EMPLOYMENT AGREEMENT is made as of the 7th day of June, 2021 (the ?Agreement?) by and among (i) NICOLET NATIONAL BANK (?Bank?), a National Bank organized under the laws of the State of Wisconsin, a wholly owned subsidiary of NICOLET BANKSHARES, INC. (?Company?), a bank holding company organized under the laws of the State of Wisconsin, (ii) Company (Bank and

PROXY STATEMENT AND PROSPECTUS OF NICOLET BANKSHARES, INC.

TABLE OF CONTENTS ? Filed Pursuant to Rule 424(b)(3)? ?Registration No. 333-256272? ? ? ? ? ? PROXY STATEMENT AND PROSPECTUS OF NICOLET BANKSHARES, INC. ? ? PROXY STATEMENT OF MACKINAC FINANCIAL CORPORATION ? PROPOSED MERGER???YOUR VOTE IS VERY IMPORTANT The boards of directors of Nicolet Bankshares, Inc. (?Nicolet?) and Mackinac Financial Corporation (?Mackinac?) have each unanimously approved a

Letter, dated June 3, 2021 from Wipfli to the Securities and Exchange Commission, regarding change in certifying accountant of the Company.

EX-16.1 2 exhibit161wipfliletter.htm EX-16.1 Exhibit 16.1 June 3, 2021 Securities and Exchange Commission Washington, D.C. 20549 Commissioners: We have read the statements of Nicolet Bankshares, Inc. included under Item 4.01 of its Form 8-K filed on June 3, 2021 and we agree with such statements concerning our firm. /s/ Wipfli LLP

Financial Statements and Exhibits, Changes in Registrant's Certifying Accountant

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 2, 2021 NICOLET BANKSHARES, INC. (Exact name of registrant as specified in its charter) Wisconsin 001-37700 47-0871001 (State or other jurisdiction of incorporation) (Commission

NICOLET BANKSHARES, INC. 111 NORTH WASHINGTON STREET GREEN BAY, WISCONSIN 54301 (920) 430-1400

NICOLET BANKSHARES, INC. 111 NORTH WASHINGTON STREET GREEN BAY, WISCONSIN 54301 (920) 430-1400 June 1, 2021 Via Edgar U.S. Securities and Exchange Commission 100 F Street, N.E. Washington, D.C. 20549 Attention: Jessica Livingston Re: Request for Acceleration of Effectiveness Nicolet Bankshares, Inc. (the ?Company?) Pre-Effective Amendment No. 1 to Registration Statement on Form S-4/A Filed June 1,

As filed with the Securities and Exchange Commission on June 1, 2021

TABLE OF CONTENTS As filed with the Securities and Exchange Commission on June 1, 2021 Registration No.

Form of Proxy Card of Nicolet.

Exhibit 99.4 MMMMMMMMMMMM MMMMMMMMMMMMMMC123456789IMPORTANT SPECIAL MEETING INFORMATION 000004 ENDORSEMENTLINE SACKPACK000000000.000000 ext 000000000.000000 ext 000000000.000000 ext000000000.000000 ext 000000000.000000 ext 000000000.000000 extMR A SAMPLE DESIGNATION (IF ANY) ADD 1 ADD 2 ADD 3 ADD 4 ADD 5 ADD 6Using a black ink pen, mark your votes with an X as shown in this example. Please do not

Form of Proxy Card of Mackinac.

Exhibit 99.5 MACKINAC FINANCIAL CORPORATION ATTN: JESSE DEERING, EVP/CFO 130 SOUTH CEDAR STREET MANISTIQUE, MI 49854VOTE BY INTERNET Before The Meeting - Go to www.proxyvote.comUse the Internet to transmit your voting instructions and for electronic delivery of information. Vote by 11:59 p.m. Eastern Time on July 14, 2021 for shares held directly and by 11:59 p.m. Eastern Time on July 10, 2021 for

Paul D. Tobias — Consent To Be Named as a Director Nominee.

Exhibit 99.3 Consent to be Named as a Director Nominee In connection with the filing by Nicolet Bankshares, Inc. of the Registration Statement (No. - ) on Form S-4 with the Securities and Exchange Commission under the Securities Act of 1933, as amended (the ?Securities Act?), I hereby consent, pursuant to Rule 438 of the Securities Act, to being a nominee to the board of directors of Nicolet Banks

Agreement and Plan of Merger by and between Nicolet Bankshares, Inc. and Mackinac Financial Corporation dated April 12, 2021 (attached as

TABLE OF CONTENTS As filed with the Securities and Exchange Commission on May 18, 2021 Registration No.

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 10, 2021 NICOLET BANKSHARES, INC. (Exact name of registrant as specified in its charter) Wisconsin 001-37700 47-0871001 (State or other jurisdiction of incorporation) (Commission

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): May 11, 2021 NICOLET BANKSHARES, INC. (Exact name of registrant as specified in its charter) Wisconsin 001-37700 47-0871001 (State or other jurisdiction of incorporation) (Commission

Quarterly Report - 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ? QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2021 ? 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: 001-37700 NICOLET BANKSHARES, INC

- 11-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 11-K ? 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 001-37700 (Nicolet Bankshares, Inc.) A. Full t

Nicolet Bankshares, Inc. Names Mike Daniels President and Chief Executive Officer

Exhibit 99.1 FOR IMMEDIATE RELEASE Nicolet Bankshares, Inc. Names Mike Daniels President and Chief Executive Officer GREEN BAY, WI, April 26, 2021? Nicolet Bankshares, Inc. (NASDAQ: NCBS) (?Nicolet?) today announced a change in the titles of certain of its Executive Officers. Mike Daniels was named President and Chief Executive Officer, and Bob Atwell was named Executive Chairman of Nicolet, effec

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): April 20, 2021 NICOLET BANKSHARES, INC. (Exact name of registrant as specified in its charter) Wisconsin 001-37700 47-0871001 (State or other jurisdiction of incorporation) (Commissio

Merger Prospectus - 425

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 20, 2021 NICOLET BANKSHARES, INC. (Exact name of registrant as specified in its charter) Wisconsin 001-37700 47-0871001 (State or other jurisdiction of incorporation) (Commissio

NICOLET BANKSHARES, INC. ANNOUNCES FIRST QUARTER 2021 EARNINGS

Exhibit 99.1 FOR IMMEDIATE RELEASE NICOLET BANKSHARES, INC. ANNOUNCES FIRST QUARTER 2021 EARNINGS ?Net income of $18.2 million, 73% higher than first quarter 2020 ?Earnings per diluted common share of $1.75 for first quarter, 79% higher than first quarter 2020 ?Return on average assets of 1.64% for first quarter, compared to 1.19% for 2020 ?Asset quality, mortgage income and PPP loan activity rema

NICOLET BANKSHARES, INC. ANNOUNCES FIRST QUARTER 2021 EARNINGS

Exhibit 99.1 FOR IMMEDIATE RELEASE NICOLET BANKSHARES, INC. ANNOUNCES FIRST QUARTER 2021 EARNINGS ?Net income of $18.2 million, 73% higher than first quarter 2020 ?Earnings per diluted common share of $1.75 for first quarter, 79% higher than first quarter 2020 ?Return on average assets of 1.64% for first quarter, compared to 1.19% for 2020 ?Asset quality, mortgage income and PPP loan activity rema

Financial Statements and Exhibits, Results of Operations and Financial Condition, 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): April 20, 2021 NICOLET BANKSHARES, INC. (Exact name of registrant as specified in its charter) Wisconsin 001-37700 47-0871001 (State or other jurisdiction of incorporation) (Commissio

Agreement and Plan of Merger Between Nicolet Bankshares, Inc. and Mackinac Financial Corporation, dated April 12, 2021

EXHIBIT 2.1 AGREEMENT AND PLAN OF MERGER BY AND BETWEEN NICOLET BANKSHARES, INC. AND MACKINAC FINANCIAL CORPORATION APRIL 12, 2021 TABLE OF CONTENTS Article 1 THE MERGER 1 Section 1.1 The Merger 1 Section 1.2 Effective Time; Closing 1 Section 1.3 Effects of the Merger 2 Section 1.4 Organizational Documents of the Surviving Entity 2 Section 1.5 Directors and Officers of the Surviving Entity 2 Secti

Entry into a Material Definitive Agreement, 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): April 12, 2021 NICOLET BANKSHARES, INC. (Exact name of registrant as specified in its charter) Wisconsin 001-37700 47-0871001 (State or other jurisdiction of incorporation) (Commissio

Acquisition of Mackinac Financial Corporation April 12, 2021 Working with Marketing on new style & color scheme throughout Exhibit 99.2 Securities Legend Forward Looking Statements “Safe Harbor” Statement Under the Private Securities Litigation Refor

Acquisition of Mackinac Financial Corporation April 12, 2021 Working with Marketing on new style & color scheme throughout Exhibit 99.

Nicolet Bankshares, Inc. To Acquire Mackinac Financial Corporation

Exhibit 99.1 FOR IMMEDIATE RELEASE Nicolet Bankshares, Inc. To Acquire Mackinac Financial Corporation GREEN BAY, WI and MANISTIQUE, MI, April 12, 2021? Nicolet Bankshares, Inc. (NASDAQ: NCBS) (?Nicolet?) and Mackinac Financial Corporation (NASDAQ: MFNC) (?Mackinac?) today jointly announced the execution of a definitive merger agreement, pursuant to which Nicolet will acquire Mackinac and its wholl

Acquisition of Mackinac Financial Corporation April 12, 2021 Working with Marketing on new style & color scheme throughout Exhibit 99.2 Securities Legend Forward Looking Statements “Safe Harbor” Statement Under the Private Securities Litigation Refor

Acquisition of Mackinac Financial Corporation April 12, 2021 Working with Marketing on new style & color scheme throughout Exhibit 99.

Agreement and Plan of Merger Between Nicolet Bankshares, Inc. and Mackinac Financial Corporation dated April 12, 2021

EXHIBIT 2.1 AGREEMENT AND PLAN OF MERGER BY AND BETWEEN NICOLET BANKSHARES, INC. AND MACKINAC FINANCIAL CORPORATION APRIL 12, 2021 TABLE OF CONTENTS Article 1 THE MERGER 1 Section 1.1 The Merger 1 Section 1.2 Effective Time; Closing 1 Section 1.3 Effects of the Merger 2 Section 1.4 Organizational Documents of the Surviving Entity 2 Section 1.5 Directors and Officers of the Surviving Entity 2 Secti

Merger Prospectus - 425

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 12, 2021 NICOLET BANKSHARES, INC. (Exact name of registrant as specified in its charter) Wisconsin 001-37700 47-0871001 (State or other jurisdiction of incorporation) (Commissio

Nicolet Bankshares, Inc. To Acquire Mackinac Financial Corporation

Exhibit 99.1 FOR IMMEDIATE RELEASE Nicolet Bankshares, Inc. To Acquire Mackinac Financial Corporation GREEN BAY, WI and MANISTIQUE, MI, April 12, 2021? Nicolet Bankshares, Inc. (NASDAQ: NCBS) (?Nicolet?) and Mackinac Financial Corporation (NASDAQ: MFNC) (?Mackinac?) today jointly announced the execution of a definitive merger agreement, pursuant to which Nicolet will acquire Mackinac and its wholl

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): March 22, 2021 NICOLET BANKSHARES, INC. (Exact name of registrant as specified in its charter) Wisconsin 001-37700 47-0871001 (State or other jurisdiction of incorporation) (Commissio

- DEF 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.) Filed by the Registrant ? Filed by a Party other than the Registrant o Check the appropriate box: o Preliminary Proxy Statement o Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(

Annual Report - 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K ? ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2020 ? 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 001-37700 NICOLET BANKSHARES, I

Subsidiaries of Nicolet Bankshares, Inc.

Exhibit 21.1 Subsidiaries of Nicolet Bankshares, Inc.: Name and jurisdiction of incorporation/organization Equity Interest Held by Registrant Nicolet National Bank, organized under the laws of the United States of America 100% Nicolet Advisory Services, LLC, a Wisconsin limited liability company 100% In addition to the subsidiaries listed above, the Registrant owns all of the common stock of a) Mi

Nicolet Bankshares, Inc. 2011 Long Term Incentive Plan, as amended and restated effective February 19, 2019, and approved by the shareholders of Nicolet Bankshares, Inc. on May 13, 2019, and forms of award documents.

Exhibit 10.5 NICOLET BANKSHARES, INC. 2011 LONG-TERM INCENTIVE PLAN (As amended and restated effective February 19, 2019) NICOLET BANKSHARES, INC. 2011 LONG-TERM INCENTIVE PLAN (As amended and restated effective February 19, 2019) TABLE OF CONTENTS Page SECTION 1 DEFINITIONS 1.1 Definitions 1 SECTION 2 THE LONG-TERM INCENTIVE PLAN 2.1 Purpose of the Plan 3 2.2 Stock Subject to the Plan 3 2.3 Admin

Description of Nicolet's Registered Securities

Exhibit 4.8 NICOLET BANKSHARES, INC. DESCRIPTION OF REGISTERED SECURITIES The following description summarizes the material provisions of the Registered Securities we offer. This description is not complete and is subject to, and is qualified in its entirety by reference to our Articles of Incorporation and our Bylaws, each of which is incorporated by reference as an exhibit to the Annual Report o

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): January 19, 2021 NICOLET BANKSHARES, INC. (Exact name of registrant as specified in its charter) Wisconsin 001-37700 47-0871001 (State or other jurisdiction of incorporation) (Commiss

NICOLET BANKSHARES, INC. ANNOUNCES RECORD 2020 EARNINGS

Exhibit 99.1 FOR IMMEDIATE RELEASE NICOLET BANKSHARES, INC. ANNOUNCES RECORD 2020 EARNINGS •Net income of $60.1 million for 2020, 10% higher than $54.6 million for 2019 •Net income strong at $18.0 million for fourth quarter, 46% above comparable 2019 quarter •Earnings per diluted common share of $1.74 for fourth quarter and $5.70 for 2020 •Return on average assets of 1.58% for fourth quarter and 1

Quarterly Report - 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2020 ☐ 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: 001-37700 NICOLET BANKSHARES,

NICOLET BANKSHARES, INC. ANNOUNCES THIRD QUARTER 2020 EARNINGS

Exhibit 99.1 FOR IMMEDIATE RELEASE NICOLET BANKSHARES, INC. ANNOUNCES THIRD QUARTER 2020 EARNINGS •Net income strong at $18.1 million, 34% above both second quarter 2020 and third quarter 2019 •Net income of $42.1 million for first nine months of 2020, compared to $42.3 million for first nine months of 2019 •Earnings per diluted common share of $1.72 and $3.97 for the three and nine months ended S

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 20, 2020 NICOLET BANKSHARES, INC. (Exact name of registrant as specified in its charter) Wisconsin 001-37700 47-0871001 (State or other jurisdiction of incorporation) (Commiss

Regulation FD Disclosure, 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): August 21, 2020 NICOLET BANKSHARES, INC. (Exact name of registrant as specified in its charter) Wisconsin 001-37700 47-0871001 (State or other jurisdiction of incorporation) (Commissi

Quarterly Report - 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2020 ☐ 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: 001-37700 NICOLET BANKSHARES, INC.

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, 2020 NICOLET BANKSHARES, INC. (Exact name of registrant as specified in its charter) Wisconsin 001-37700 47-0871001 (State or other jurisdiction of incorporation) (Commission

NICOLET BANKSHARES, INC. ANNOUNCES SECOND QUARTER 2020 EARNINGS

Exhibit 99.1 FOR IMMEDIATE RELEASE NICOLET BANKSHARES, INC. ANNOUNCES SECOND QUARTER 2020 EARNINGS •Net income of $13.5 million, 28% above first quarter 2020 •Net income of $24.0 million for first six months of 2020, compared to $28.8 million for first six months of 2019 •Earnings per diluted common share of $1.28 and $2.25 for the three and six months ended June 30 •Return on average assets was 1

CHAIRMAN'S MESSAGE FROM NICOLET BANKSHARES, INC. ROBERT B. ATWELL, CHAIRMAN, PRESIDENT AND CEO As of July 21, 2020

Exhibit 99.1 FOR IMMEDIATE RELEASE CHAIRMAN'S MESSAGE FROM NICOLET BANKSHARES, INC. ROBERT B. ATWELL, CHAIRMAN, PRESIDENT AND CEO As of July 21, 2020 The second quarter of 2020 was the most complex and volatile in our company’s history. The overall results were very positive. There remains ample cause for concern about the long term impact of COVID-19 on our customer base, but what we see most cle

Regulation FD Disclosure, 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 21, 2020 NICOLET BANKSHARES, INC. (Exact name of registrant as specified in its charter) Wisconsin 001-37700 47-0871001 (State or other jurisdiction of incorporation) (Commission

- 11-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 11-K þ 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 001-37700 (Nicolet Bankshares, Inc.) A. Full t

- RW

Nicolet Bankshares, Inc. 111 North Washington Street Green Bay, Wisconsin 54301 (920) 430-1400 May 19, 2020 VIA EDGAR U.S. Securities and Exchange Commission Division of Corporation Finance 100 F Street, N.E. Washington, D.C. 20549 RE: Nicolet Bankshares, Inc. Withdrawal of Registration Statement on Form S-4 File No. 333-237995 Ladies and Gentlemen: Pursuant to Rule 477 promulgated under the Secur

Termination of Merger Agreement between Nicolet Bankshares, Inc. and Commerce Financial Holdings, Inc., dated May 18, 2020

EX-10.1 2 exhibit101mergerterminati.htm EXHIBIT 10.1 EXHIBIT 10.1 TERMINATION OF MERGER AGREEMENT This TERMINATION OF MERGER AGREEMENT (this “Agreement”) dated May 18, 2020, is between Nicolet Bankshares, Inc., a Wisconsin corporation (“Nicolet”), and Commerce Financial Holdings, Inc., a Wisconsin corporation (the “Company”). RECITALS A. Nicolet and the Company are parties to an Agreement and Plan

Regulation FD Disclosure, Termination of a Material Definitive Agreement, 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 18, 2020 NICOLET BANKSHARES, INC. (Exact name of registrant as specified in its charter) Wisconsin 001-37700 47-0871001 (State or other jurisdiction of incorporation or organizati

Termination of Merger Agreement

EXHIBIT 99.1 FOR IMMEDIATE RELEASE Termination of Merger Agreement GREEN BAY, WI, May 18, 2020 - As previously reported, on February 17, 2020, Nicolet Bankshares, Inc. (NASDAQ: NCBS) (“Nicolet”) and Commerce Financial Holdings, Inc. (“Commerce”) entered into a definitive merger agreement (“Merger Agreement”), pursuant to which Nicolet would acquire Commerce and its wholly-owned banking subsidiary,

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 11, 2020 NICOLET BANKSHARES, INC. (Exact name of registrant as specified in its charter) Wisconsin 001-37700 47-0871001 (State or other jurisdiction of incorporation or organizati

- S-4

TABLE OF CONTENTS As filed with the Securities and Exchange Commission on May 4, 2020 Registration No.

Quarterly Report - FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ý QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2020 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: 001-37700 NICOLET BANKSHARES, INC.

NCBS / Nicolet Bankshares Inc. 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 ý Filed by a Party other than the Registrant o Check the appropriate box: o Preliminary Proxy Statement o Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(

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 21, 2020 NICOLET BANKSHARES, INC. (Exact name of registrant as specified in its charter) Wisconsin 001-37700 47-0871001 (State or other jurisdiction of incorporation) (Commissio

CHAIRMAN’S MESSAGE FROM NICOLET BANKSHARES, INC. ROBERT B. ATWELL, CHAIRMAN, PRESIDENT AND CEO As of April 21, 2020

Exhibit 99.1 FOR IMMEDIATE RELEASE CHAIRMAN’S MESSAGE FROM NICOLET BANKSHARES, INC. ROBERT B. ATWELL, CHAIRMAN, PRESIDENT AND CEO As of April 21, 2020 As a public company, Nicolet is subject to the Securities and Exchange Commission (SEC) regulation regarding the form and nature of public communication. This, together with the inherent legal risk involved in making forward-looking statements that

CHAIRMAN’S MESSAGE FROM NICOLET BANKSHARES, INC. ROBERT B. ATWELL, CHAIRMAN, PRESIDENT AND CEO As of April 21, 2020

Exhibit 99.1 FOR IMMEDIATE RELEASE CHAIRMAN’S MESSAGE FROM NICOLET BANKSHARES, INC. ROBERT B. ATWELL, CHAIRMAN, PRESIDENT AND CEO As of April 21, 2020 As a public company, Nicolet is subject to the Securities and Exchange Commission (SEC) regulation regarding the form and nature of public communication. This, together with the inherent legal risk involved in making forward-looking statements that

Regulation FD Disclosure, 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): April 21, 2020 NICOLET BANKSHARES, INC. (Exact name of registrant as specified in its charter) Wisconsin 001-37700 47-0871001 (State or other jurisdiction of incorporation) (Commissio

NICOLET BANKSHARES, INC. ANNOUNCES FIRST QUARTER 2020 EARNINGS

Exhibit 99.1 FOR IMMEDIATE RELEASE NICOLET BANKSHARES, INC. ANNOUNCES FIRST QUARTER 2020 EARNINGS • Net income of $10.6 million, 3% above first quarter 2019 • Earnings per diluted common share of $0.98 for first quarter • Return on average assets of 1.19% for first quarter versus 1.37% for first quarter 2019 • In light of economic uncertainty, Nicolet has increased liquidity and provision expense

NCBS / Nicolet Bankshares Inc. 425 - Merger Prospectus - 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): April 21, 2020 NICOLET BANKSHARES, INC. (Exact name of registrant as specified in its charter) Wisconsin 001-37700 47-0871001 (State or other jurisdiction of incorporation) (Commissio

Amendments to Articles of Incorporation or Bylaws; Change in Fiscal Year, 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): March 25, 2020 NICOLET BANKSHARES, INC. (Exact name of registrant as specified in its charter) Wisconsin 001-37700 47-0871001 (State or other jurisdiction of incorporation or organiza

Amended and Restated Bylaws of Nicolet Bankshares, Inc.

Exhibit 3.1 BYLAWS NICOLET BANKSHARES, INC. BYLAWS NICOLET BANKSHARES, INC. INDEX PAGE 1. OFFICES 1 1.1. Principal and Other Offices 1 1.2. Registered Office 1 2. SHAREHOLDERS 1 2.1. Annual Meeting 1 2.2. Special Meetings 1 2.3. Place of Meeting 1 2.4. Notice of Meeting 1 2.5. Advance Notice of Shareholder-Proposed Business at Annual Meetings 2 2.6. Nominations 2 2.7. Fixing of Record Date 3 2.8.

NCBS / Nicolet Bankshares Inc. DEF 14A - - DEF 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.) Filed by the Registrant ý Filed by a Party other than the Registrant o Check the appropriate box: o Preliminary Proxy Statement o Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(

Nicolet Bankshares, Inc. To Acquire Advantage Community Bancshares, Inc. Nicolet continues strategic expansion in Central Wisconsin

Exhibit 99.1 FOR IMMEDIATE RELEASE Nicolet Bankshares, Inc. To Acquire Advantage Community Bancshares, Inc. Nicolet continues strategic expansion in Central Wisconsin GREEN BAY, WI, March 2, 2020 - Nicolet Bankshares, Inc. (NASDAQ: NCBS) (“Nicolet”) and Advantage Community Bancshares, Inc. (“Advantage”) today jointly announce the execution of a definitive merger agreement, pursuant to which Nicole

Regulation FD Disclosure, 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): March 2, 2020 NICOLET BANKSHARES, INC. (Exact name of registrant as specified in its charter) Wisconsin 001-37700 47-0871001 (State or other jurisdiction of incorporation or organizat

Description of Nicolet's Registered Securities

Exhibit 4.8 NICOLET BANKSHARES, INC. DESCRIPTION OF REGISTERED SECURITIES The following description summarizes the material provisions of the Registered Securities we offer. This description is not complete and is subject to, and is qualified in its entirety by reference to our Articles of Incorporation and our Bylaws, each of which is incorporated by reference as an exhibit to the Annual Report o

Subsidiaries of Nicolet Bankshares, Inc.

Exhibit 21.1 Subsidiaries of Nicolet Bankshares, Inc.: Name and jurisdiction of incorporation/organization Equity Interest Held by Registrant Nicolet National Bank, organized under the laws of the United States of America 100% Brookfield Investment Partners, LLC, a Wisconsin limited liability company 100% Nicolet Advisory Services, LLC, a Wisconsin limited liability company 100% Nicolet Joint Vent

Nicolet’s Annual Report on Form 10-K for the year ended December 31, 2019, filed with the SEC on February 28, 2020;

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K x ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2019 ¨ 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 001-37700 NICOLET BANKSHARES, I

Agreement and Plan of Merger Between Nicolet Bankshares, Inc. and Commerce Financial Holdings, Inc. dated February 17, 2020

Exhibit 2.1 AGREEMENT AND PLAN OF MERGER BY AND BETWEEN NICOLET BANKSHARES, INC. AND COMMERCE FINANCIAL HOLDINGS, INC. FEBRUARY 17, 2020 TABLE OF CONTENTS Article 1 THE MERGER 1 Section 1.1 The Merger 1 Section 1.2 Effective Time; Closing 1 Section 1.3 Effects of the Merger 2 Section 1.4 Organizational Documents of the Surviving Entity 2 Section 1.5 Directors and Officers of the Surviving Entity 2

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, 2020 NICOLET BANKSHA

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, 2020 NICOLET BANKSHARES, INC. (Exact name of registrant as specified in its charter) Wisconsin 001-37700 47-0871001 (State or other jurisdiction of incorporation or organ

Entry into a Material Definitive Agreement, 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): February 17, 2020 NICOLET BANKSHARES, INC. (Exact name of registrant as specified in its charter) Wisconsin 001-37700 47-0871001 (State or other jurisdiction of incorporation or organ

Nicolet Bankshares, Inc. To Acquire Commerce Financial Holdings, Inc.

Exhibit 99.1 FOR IMMEDIATE RELEASE Nicolet Bankshares, Inc. To Acquire Commerce Financial Holdings, Inc. GREEN BAY, WI, February 17, 2020 - Nicolet Bankshares, Inc. (NASDAQ: NCBS) (?Nicolet?) and Commerce Financial Holdings, Inc. (?Commerce?) today jointly announce the execution of a definitive merger agreement, pursuant to which Nicolet will acquire Commerce and its wholly-owned banking subsidiar

Nicolet Bankshares, Inc. To Acquire Commerce Financial Holdings, Inc.

Exhibit 99.1 FOR IMMEDIATE RELEASE Nicolet Bankshares, Inc. To Acquire Commerce Financial Holdings, Inc. GREEN BAY, WI, February 17, 2020 - Nicolet Bankshares, Inc. (NASDAQ: NCBS) (“Nicolet”) and Commerce Financial Holdings, Inc. (“Commerce”) today jointly announce the execution of a definitive merger agreement, pursuant to which Nicolet will acquire Commerce and its wholly-owned banking subsidiar

Agreement and Plan of Merger by and between Nicolet Bankshares, Inc. and Commerce Financial Holdings, Inc., dated February 17, 2020.

Exhibit 2.1 AGREEMENT AND PLAN OF MERGER BY AND BETWEEN NICOLET BANKSHARES, INC. AND COMMERCE FINANCIAL HOLDINGS, INC. FEBRUARY 17, 2020 TABLE OF CONTENTS Article 1 THE MERGER 1 Section 1.1 The Merger 1 Section 1.2 Effective Time; Closing 1 Section 1.3 Effects of the Merger 2 Section 1.4 Organizational Documents of the Surviving Entity 2 Section 1.5 Directors and Officers of the Surviving Entity 2

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): January 21, 2020 NICOLET BANKSHARES, INC. (Exact name of registrant as specified in its charter) Wisconsin 001-37700 47-0871001 (State or other jurisdiction of incorporation) (Commiss

NICOLET BANKSHARES, INC. ANNOUNCES RECORD 2019 EARNINGS

Exhibit 99.1 FOR IMMEDIATE RELEASE NICOLET BANKSHARES, INC. ANNOUNCES RECORD 2019 EARNINGS • Net income of $12.3 million, 13% above fourth quarter 2018 • Net income of $54.6 million for 2019, 33% higher than 2018 • Earnings per diluted common share of $1.18 for fourth quarter and $5.52 for 2019 • Return on average assets of 1.46% for fourth quarter and 1.75% for 2019 • Acquisition of Choice Bancor

Financial Statements and Exhibits, Completion of Acquisition or Disposition of Assets

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): November 8, 2019 NICOLET BANKSHARES, INC. (Exact name of registrant as specified in its charter) Wisconsin 001-37700 47-0871001 (State or other jurisdiction of incorporation or organi

NCBS / Nicolet Bankshares Inc. 10-Q - Quarterly Report - FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ý QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2019 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: 001-37700 NICOLET BANKSHARES, I

Financial Statements and Exhibits, Results of Operations and Financial Condition, 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): October 15, 2019 NICOLET BANKSHARES, INC. (Exact name of registrant as specified in its charter) Wisconsin 001-37700 47-0871001 (State or other jurisdiction of incorporation) (Commiss