LDL / Lydall, Inc. - Документы SEC, Годовой отчет, Доверенное заявление

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 15 CERTIFICATION AND NOTICE OF TERMINATION OF REGISTRATION UNDER SECTION 12(g) OF THE SECURITIES EXCHANGE ACT OF 1934 OR SUSPENSION OF DUTY TO FILE REPORTS UNDER SECTIONS 13

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 15 CERTIFICATION AND NOTICE OF TERMINATION OF REGISTRATION UNDER SECTION 12(g) OF THE SECURITIES EXCHANGE ACT OF 1934 OR SUSPENSION OF DUTY TO FILE REPORTS UNDER SECTIONS 13 AND 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934. Commission File Number: 1-7665 Lydall, Inc. (Exact name of registrant as specified in its charter)

LDL / Lydall, Inc. / Neuberger Berman Group LLC - NONE Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 2)* Lydall Inc (Name of Issuer) Common (Title of Class of Securities) 550819106 (CUSIP Number) September 30, 2021 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to which this Schedule is filed

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

As filed with the Securities and Exchange Commission on October 1, 2021 Registration No.

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

As filed with the Securities and Exchange Commission on October 1, 2021 Registration No.

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

As filed with the Securities and Exchange Commission on October 1, 2021 Registration No.

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

As filed with the Securities and Exchange Commission on October 1, 2021 Registration No.

EX-99.25

NOTIFICATION OF THE REMOVAL FROM LISTING AND REGISTRATION OF THE STATED SECURITIES The New York Stock Exchange hereby notifies the SEC of its intention to remove the entire class of the stated securities from listing and registration on the Exchange at the opening of business on October 12, 2021, pursuant to the provisions of Rule 12d2-2 (a).

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

As filed with the Securities and Exchange Commission on October 1, 2021 Registration No.

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

As filed with the Securities and Exchange Commission on October 1, 2021 Registration No.

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

As filed with the Securities and Exchange Commission on October 1, 2021 Registration No.

LDL / Lydall, Inc. / GLAZER CAPITAL, LLC Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 Lydall, Inc. (Name of Issuer) Common Stock, par value $0.01 per share (Title of Class of Securities) 550819106 (CUSIP Number) September 15, 2021 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to which this S

Financial Statements and Exhibits, Other Events, 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): September 14, 2021 Commission File No. 1-7665 LYDALL, INC. (Exact name of registrant as specified in its charter) Delaware 06-0865505 (State or other jurisdiction of incorporation or

LYDALL ANNOUNCES SEPTEMBER 14, 2021 SPECIAL MEETING RESULTS

Exhibit 99.1 Lydall, Inc. Telephone 860-646-1233 One Colonial Road? Facsimile 860-646-4917 Manchester, CT 06042-2307 www.lydall.com specialty engineered products and materials News Release LYDALL ANNOUNCES SEPTEMBER 14, 2021 SPECIAL MEETING RESULTS ? Merger Agreement with Unifrax approved by Lydall Shareholders ? Lydall and Unifrax anticipate closing within 30 days MANCHESTER, Connecticut, Septemb

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 Commission File No. 1-7665 LYDALL, INC. (Exact name of registrant as specified in its charter) Delaware 06-0865505 (State or other jurisdiction of incorporation or o

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A PROXY STATEMENT PURSUANT TO SECTION 14(A) OF THE SECURITIES EXCHANGE ACT OF 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A PROXY STATEMENT PURSUANT TO SECTION 14(A) OF THE SECURITIES EXCHANGE ACT OF 1934 Filed by the Registrant x Filed by a party other than the Registrant ? Check the appropriate box: ? Preliminary Proxy Statement ? Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ? Definitive Proxy State

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

TABLE OF CONTENTS UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 ? SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 ? ? Filed by the Registrant ? ? ? ? ? Filed by a Party other than the Registrant ? ? ? ? Check the appropriate box: ? Preliminary Proxy Statement ? ? Confidential, for Use of the Commission Only (as permitted by Ru

JOINT FILING AGREEMENT

Exhibit 99.1 JOINT FILING AGREEMENT In accordance with Rule 13d-1(k), as promulgated under the Securities Exchange Act of 1934, as amended, the persons named below agree to the joint filing on behalf of each of them a Statement on Schedule 13D (including amendments thereto) with regard to the common stock of Lydall, Inc., and further agree that this Joint Filing Agreement be included as an Exhibit

LDL / Lydall, Inc. / Magnetar Financial LLC - SC 13D Activist Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D. C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 (Amendment No. )* Lydall, Inc. (Name of Issuer) Common Stock, par value $0.01 (Title of Class of Securities) 550819106 (CUSIP Number of Class of Securities) Alec N. Litowitz Magnetar Capital LLC 1603 Orrington Ave. Evanston, Illinois 60201 (847) 905-4400 (Name, Address an

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15 (d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): July 28, 2021 Lydall, Inc. (Exact name of registrant as specified in its charter) Commission file number: 1-7665 Delaware 06-0865505 (State or Other Jurisdiction of Incorporation or

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 SEC

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 OR ?TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 1-7665 Lydall, Inc. (Exact name o

LYDALL ANNOUNCES SECOND QUARTER 2021 RESULTS; SIGNIFICANT GROWTH ACROSS FOCUSED PORTFOLIO DRIVES MARGIN EXPANSION FINANCIAL HIGHLIGHTS* - Q2 2021

Lydall, Inc Telephone 860-646-1233 One Colonial Road Facsimile 860-646-4917 Manchester, CT 06042-2378 www.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

TABLE OF CONTENTS UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 ? SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 ? ? Filed by the Registrant ? ? ? ? ? Filed by a Party other than the Registrant ? ? ? ? Check the appropriate box: ? Preliminary Proxy Statement ? ? Confidential, for Use of the Commission Only (as permitted by Ru

LDL / Lydall, Inc. / Juniper Investment Company, LLC - AMENDMENT NO. 2 Activist Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 (Amendment No. 2) Lydall, Inc. (Name of Issuer) Common Stock, $0.01 par value per share (Title of Class of Securities) 550819106 (CUSIP Number) John A. Bartholdson Juniper Investment Company, LLC 555 Madison Avenue, 24th Floor New York, New York 10022 (212) 339-8500 (Name,

Joint Press Release of Lydall, Inc., dated as of June 21, 2021.

Exhibit 99.1 Clearlake Capital-Backed Unifrax to Acquire Lydall, Inc. for $62.10 per share Creates Market Leading Global Specialty Materials Platform Focused On Innovative Battery Materials, Filtration Solutions, and Energy Saving Technologies Tonawanda, NY and Manchester, CT ? June 21, 2021 ? Unifrax, a leading global provider of high-performance specialty materials focused on thermal management,

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 (June 21, 2021) Commission File No. 1-7665 LYDALL, INC. (Exact name of registrant as specified in its charter) Delaware 06-0865505 (State or other jurisdiction of incorp

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 (June 21, 2021) Com

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): June 22, 2021 (June 21, 2021) Commission File No. 1-7665 LYDALL, INC. (Exact name of registrant as specified in its charter) Delaware 06-0865505 (State or other jurisdiction of incorp

Agreement and Plan of Merger by and among Lydall, Inc., Unifrax Holding Co., Outback Merger Sub, Inc., and solely for purposes set forth therein, Unifrax I LLC, dated as of June 21, 2021.*

Exhibit 2.1 CONFIDENTIAL EXECUTION VERSION AGREEMENT AND PLAN OF MERGER dated as of June 21, 2021 among LYDALL, INC., UNIFRAX HOLDING CO., OUTBACK MERGER SUB, INC. and UNIFRAX I LLC TABLE OF CONTENTS Page Article 1 Definitions Section 1.01. Definitions 1 Section 1.02. Other Definitional and Interpretative Provisions 16 Article 2 The Merger Section 2.01. The Merger 16 Section 2.02. Conversion of Sh

Agreement and Plan of Merger by and among Lydall, Inc., Unifrax Holding Co., Outback Merger Sub, Inc., and solely for purposes set forth therein, Unifrax I LLC, dated as of June 21, 2021.*

Exhibit 2.1 CONFIDENTIAL EXECUTION VERSION AGREEMENT AND PLAN OF MERGER dated as of June 21, 2021 among LYDALL, INC., UNIFRAX HOLDING CO., OUTBACK MERGER SUB, INC. and UNIFRAX I LLC TABLE OF CONTENTS Page Article 1 Definitions Section 1.01. Definitions 1 Section 1.02. Other Definitional and Interpretative Provisions 16 Article 2 The Merger Section 2.01. The Merger 16 Section 2.02. Conversion of Sh

Clearlake Capital-Backed Unifrax to Acquire Lydall, Inc. for $62.10 per share Creates Market Leading Global Specialty Materials Platform Focused On Innovative Battery Materials, Filtration Solutions, and Energy Saving Technologies

Exhibit 99.1 Clearlake Capital-Backed Unifrax to Acquire Lydall, Inc. for $62.10 per share Creates Market Leading Global Specialty Materials Platform Focused On Innovative Battery Materials, Filtration Solutions, and Energy Saving Technologies Tonawanda, NY and Manchester, CT ? June 21, 2021 ? Unifrax, a leading global provider of high-performance specialty materials focused on thermal management,

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM SD SPECIALIZED DISCLOSURE REPORT LYDALL, INC. (Exact name of registrant as specified in its charter) Commission file number: 1-7665

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM SD SPECIALIZED DISCLOSURE REPORT LYDALL, INC. (Exact name of registrant as specified in its charter) Commission file number: 1-7665 Delaware 06-0865505 (State or other jurisdiction of incorporation or organization) (I.R.S. Employer Identification No.) One Colonial Road, Manchester, Connecticut 06042 (Address of principal

Security and Pledge Agreement, dated April 26, 2021, by and among Lydall, Inc., and Bank of America, N.A., filed herewith.

SECURITY AND PLEDGE AGREEMENT THIS SECURITY AND PLEDGE AGREEMENT (this ?Agreement?) is entered into as of April 26, 2021 among LYDALL, INC.

LYDALL ANNOUNCES FIRST QUARTER 2021 RESULTS; STRONG DEMAND ACROSS THE BUSINESS DRIVES HEALTHY MARGIN EXPANSION FINANCIAL HIGHLIGHTS* - Q1 2021

Lydall, Inc Telephone 860-646-1233 One Colonial Road Facsimile 860-646-4917 Manchester, CT 06042-2378 www.

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 OR ?TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 1-7665 Lydall, Inc. (Exact name

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15 (d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): April 27, 2021 Lydall, Inc. (Exact name of registrant as specified in its charter) Commission file number: 1-7665 Delaware 06-0865505 (State or Other Jurisdiction of Incorporation or

Credit Agreement, dated April 26, 2021, by and among Lydall, Inc., as borrower, the Guarantors named therein, and Bank of America, N.A., as Agent for the Lenders, filed herewith.

Deal CUSIP: 55081WAF2 Revolving Loan CUSIP: 55081WAG0 Term Loan CUSIP: 55081WAH8 CREDIT AGREEMENT Dated as of April 26, 2021 among LYDALL, INC.

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): April 20, 2021 LYDALL, INC. (Exact name of registrant as specified in its charter) Commission file number: 1-7665 Delaware 06-0865505 (State or Other Jurisdiction of Incorporation or

- DEF 14A

TABLE OF CONTENTS UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 ? SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 ? ? Filed by the Registrant ? ? ? ? ? Filed by a Party other than the Registrant ? ? ? ? Check the appropriate box: ? Preliminary Proxy Statement ? ? Confidential, for Use of the Commission Only (as permitted by Ru

Employment Agreement with David Glenn, dated as of September 1, 2017, filed herewith.

AGREEMENT This Agreement is made and entered by and between LYDALL THERMAL/ACOUSTICAL, INC.

List of subsidiaries of the Registrant, filed herewith.

Exhibit 21.1 Lydall, Inc. Subsidiary List as of December 31, 2020 Parent Company Lydall, Inc. First tier Lydall International, Inc. Lydall Netherlands B.V. Lydall North America, LLC Lydall Performance Materials, Inc. Lydall Thermal/Acoustical, Inc. Southern Felt Company, Inc. Susquehanna Capital Acquisition Co. Second tier Interface Sealing Solutions Hong Kong Limited Lydall France S.A.S. Lydall G

Employment Agreement with John J. Tedone, dated as of May 5, 2020, filed herewith.

AGREEMENT THIS AGREEMENT is made and entered by and between LYDALL, INC., a Delaware corporation (the "Company"), and John J. Tedone (?the "Employee"), effective May 5, 2020. W I T N E S S E T H WHEREAS, the Company and the Employee (the "Parties") have agreed to enter into this agreement (the "Agreement) relating to the termination of the employment of the Employee; NOW, THEREFORE, in considerati

Employment Agreement with Ashish Diwanji, dated as of April 20, 2020, filed herewith.

AGREEMENT THIS AGREEMENT is made and entered by and between LYDALL, INC., a Delaware corporation (the "Company"), and Ashish P. Diwanji (?the "Employee"), effective April 20, 2020. W I T N E S S E T H WHEREAS, the Company and the Employee (the "Parties") have agreed to enter into this agreement (the "Agreement) relating to the termination of the employment of the Employee; NOW, THEREFORE, in consi

Amendment No. 1 to the Agreement, dated December 23, 2020, between the Company and David Glenn, amending that certain Employment Agreement dated September 1, 2017, filed as Exhibit

AMENDMENT NO. 1 TO THE AGREEMENT THIS AMENDMENT NO. 1 TO THE AGREEMENT (?Amendment?) is entered into as of the 23rd day of December, 2018, by Lydall Thermal/Acoustical, Inc., a Delaware corporation (the ?Company"), and DAVID D. GLENN (the "Employee"). W I T N E S S E T H WHEREAS, the Company and the Employee entered into that certain Agreement dated September 1, 2017 (the "Agreement?) relating to

Form of Lydall, Inc. Performance Share Award Agreement (Three-Year Period) for

LYDALL, INC. PERFORMANCE SHARE AWARD AGREEMENT (Three-Year Period) THIS PERFORMANCE SHARE AWARD AGREEMENT (this ?Agreement?) is made between Lydall, Inc., a Delaware corporation (?Lydall?), and the recipient (the ?Recipient?) with respect to an Award under Lydall?s Amended and Restated 2012 Stock Incentive Plan (the ?Plan?) pursuant to the award letter (the ?Award Letter?), dated 202, from Lydall

Lydall, Inc. Annual Incentive Performance Program adopted February 21, 2021 and effective January 1, 2021, filed herewith.

LYDALL, INC. ANNUAL INCENTIVE PERFORMANCE PROGRAM (Approved on February 21, 2021; Effective January 1, 2021) This Annual Incentive Performance Program (this ?AIP Program?) sets forth the terms and conditions under which designated employees of Lydall, Inc. and its subsidiaries (collectively, ?Lydall? or the ?Company?) may receive cash incentive payments based on the annual financial performance of

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15 (d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): February 23, 2021 LYDALL INC /DE/ (Exact name of registrant as specified in its charter) Commission file number: 1-7665 Delaware 06-0865505 (State or Other Jurisdiction of Incorporat

LYDALL ANNOUNCES FOURTH QUARTER 2020 RESULTS; STRONG SPECIALTY FILTRATION DEMAND DRIVES SIGNIFICANT GROSS MARGIN EXPANSION; NEW FINE FIBER MELTBLOWN PRODUCTION LINE DOUBLES DOMESTIC CAPACITY IN EARLY 2021 FINANCIAL HIGHLIGHTS* - Q4 2020

Lydall, Inc Telephone 860-646-1233 One Colonial Road Facsimile 860-646-4917 Manchester, CT 06042-2378 www.

Employment Agreement with Tony Justice, dated as of January 11, 2021, filed herewith.

AGREEMENT THIS AGREEMENT is made and entered by and between LYDALL, INC., a Delaware corporation (the "Company"), and Anthony N. Justice (?the "Employee"), effective January 11, 2021. W I T N E S S E T H WHEREAS, the Company and the Employee (the "Parties") have agreed to enter into this agreement (the "Agreement) relating to the termination of the employment of the Employee; NOW, THEREFORE, in co

authorizing Randall B. Gonzales to sign this Annual Report on Form 10-K on behalf of each member of the Board of Directors indicated therein, filed herewith.

Exhibit 24.1 POWER OF ATTORNEY KNOW ALL MEN BY THESE PRESENTS, that each of the undersigned directors and officers of Lydall, Inc. (the ?Corporation?), does hereby constitute and appoint Sara A. Greenstein and Randall B. Gonzales, and each of them singly, as his agent and attorney-in-fact to do any and all things and acts in his/her name and in the capacities indicated below and to execute any and

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 OR ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 1-7665 Lydall, Inc. (Exact name of

SCHEDULE 13G

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 21 )* Lydall Inc (Name of Issuer) Common Stock (Title of Class of Securities) 550819106 (CUSIP Number) December 31, 2020 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to which this Schedule i

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 1)* Lydall Inc (Name of Issuer) (Title of Class of Securities) (CUSIP Number) December 31, 2020 (Date of Eve

Schedule 13G UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 1)* Lydall Inc (Name of Issuer) Common (Title of Class of Securities) 550819106 (CUSIP Number) December 31, 2020 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to which this Sched

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 1)*

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 1)* Name of issuer: Lydall Inc. Title of Class of Securities: Common Stock CUSIP Number: 550819106 Date of Event Which Requires Filing of this Statement: December 31, 2020 Check the appropriate box to designate the rule pursuant to which this Schedule is filed: ☒ Rule 13

Regulation FD Disclosure, Financial Statements and Exhibits - FORM 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15 (d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): December 9, 2020 LYDALL, INC. (Exact name of registrant as specified in its charter) Commission file number: 1-7665 Delaware 06-0865505 (State or Other Jurisdiction of Incorporation

Press release, dated December 9, 2020, titled “Lydall Investor Day Presentation,” furnished herewith.

Exhibit 99.1

Financial Statements and Exhibits, Results of Operations and Financial Condition - 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 27, 2020 LYDALL INC /DE/ (Exact name of registrant as specified in its charter) Commission file number: 1-7665 Delaware 06-0865505 (State or Other Jurisdiction of Incorporati

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 OR ☐TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 1-7665 LYDALL INC /DE/ (Exac

Fourth Amendment to Second Amended and Restated Credit Agreement, dated October 14, 2020, by and among Lydall, Inc., as borrower, the Guarantors named therein, and Bank of America, N.A., as Agent for the Lenders, filed as Exhibit 10.2 to the registrant's Form 10-Q dated October 27, 2020, and incorporated herein by this reference.

FOURTH AMENDMENT TO SECOND AMENDED AND RESTATED CREDIT AGREEMENT THIS FOURTH AMENDMENT TO SECOND AMENDED AND RESTATED CREDIT AGREEMENT (this “Agreement”) is made as of the 14th day of October, 2020, by and among LYDALL, INC.

LYDALL ANNOUNCES THIRD QUARTER 2020 RESULTS; STRONG CASH FLOW FROM OPERATIONS; FILTRATION DEMAND ACCELERATES; RESTRUCTURING ACTIONS TAKEN TO FOCUS BUSINESS

Lydall, Inc Telephone 860-646-1233 One Colonial Road Facsimile 860-646-4917 Manchester, CT 06042-2378 www.

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers - FORM 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15 (d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): September 28, 2020 LYDALL, INC. (Exact name of registrant as specified in its charter) Commission file number: 1-7665 Delaware 06-0865505 (State or Other Jurisdiction of Incorporatio

EX-24

POWER OF ATTORNEY Know all by these presents, that the undersigned hereby constitutes and appoints each of Randall B.

EX-24

POWER OF ATTORNEY Know all by these presents, that the undersigned hereby constitutes and appoints each of Chad A.

EX-24

POWER OF ATTORNEY Know all by these presents, that the undersigned hereby constitutes and appoints each of Randall B.

EX-24

POWER OF ATTORNEY Know all by these presents, that the undersigned hereby constitutes and appoints each of Randall B.

EX-24

POWER OF ATTORNEY Know all by these presents, that the undersigned hereby constitutes and appoints each of Chad A.

EX-24

POWER OF ATTORNEY Know all by these presents, that the undersigned hereby constitutes and appoints each of Randall B.

EX-24

POWER OF ATTORNEY Know all by these presents, that the undersigned hereby constitutes and appoints each of Randall B.

EX-24

POWER OF ATTORNEY Know all by these presents, that the undersigned hereby constitutes and appoints each of Randall B.

EX-24

POWER OF ATTORNEY Know all by these presents, that the undersigned hereby constitutes and appoints each of Randall B.

EX-24

POWER OF ATTORNEY Know all by these presents, that the undersigned hereby constitutes and appoints each of Randall B.

EX-24

POWER OF ATTORNEY Know all by these presents, that the undersigned hereby constitutes and appoints each of Randall B.

EX-24

POWER OF ATTORNEY Know all by these presents, that the undersigned hereby constitutes and appoints each of Randall B.

EX-24

POWER OF ATTORNEY Know all by these presents, that the undersigned hereby constitutes and appoints each of Randall B.

LYDALL ANNOUNCES FINANCIAL RESULTS FOR THE SECOND QUARTER ENDED JUNE 30, 2020

Lydall, Inc Telephone 860-646-1233 One Colonial Road Facsimile 860-646-4917 Manchester, CT 06042-2378 www.

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15 (d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): July 28, 2020 LYDALL INC /DE/ (Exact name of registrant as specified in its charter) Commission file number: 1-7665 Delaware 06-0865505 (State or Other Jurisdiction of Incorporation

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 OR ☐TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 1-7665 LYDALL INC /DE/ (Exact nam

- FORM SD

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM SD SPECIALIZED DISCLOSURE REPORT LYDALL, INC. (Exact name of registrant as specified in its charter) Commission file number: 1-7665 Delaware 06-0865505 (State or other jurisdiction of incorporation or organization) (I.R.S. Employer Identification No.) One Colonial Road, Manchester, Connecticut 06042 (Address of principal

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

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15 (d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): May 21, 2020 LYDALL, INC. (Exact name of registrant as specified in its charter) Commission file number: 1-7665 Delaware 06-0865505 (State or Other Jurisdiction of Incorporation or O

SCHEDULE OF TRANSACTIONS

EXHIBIT A SCHEDULE OF TRANSACTIONS Reporting Person Date of Transaction Number of Shares Acquired Price Per Share Low Price High Price Juniper Targeted Opportunity Fund, L.

LDL / Lydall, Inc. / Juniper Investment Company, Llc - AMENDMENT NO. 1 Activist Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 (Amendment No. 1) Lydall, Inc. (Name of Issuer) Common Stock, $0.01 par value per share (Title of Class of Securities) 550819106 (CUSIP Number) John A. Bartholdson Juniper Investment Company, LLC 555 Madison Avenue, 24th Floor New York, New York 10022 (212) 339-8500 (Name,

LYDALL ANNOUNCES FINANCIAL RESULTS FOR THE FIRST QUARTER ENDED MARCH 31, 2020

Lydall, Inc Telephone 860-646-1233 One Colonial Road Facsimile 860-646-4917 Manchester, CT 06042-2378 www.

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, 2020 OR ☐TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 1-7665 LYDALL INC /DE/ (Exact na

Amended and Restated 2012 Stock Incentive Plan

Exhibit 99.1 LYDALL, INC. AMENDED AND RESTATED 2012 STOCK INCENTIVE PLAN 1. Purpose The purpose of this Amended and Restated 2012 Stock Incentive Plan (the “Plan”) of Lydall, Inc., a Delaware corporation (“Lydall”), is to advance the interests of Lydall’s stockholders by enhancing the ability of Lydall and the Lydall Affiliates (as defined in Section 11) to attract, retain and motivate persons who

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): May 11, 2020 LYDALL INC /DE/ (Exact name of registrant as specified in its charter) Commission file number: 1-7665 Delaware 06-0865505 (State or Other Jurisdiction of Incorporation o

Third Amendment to Second Amended and Restated Credit Agreement, dated May 11, 2020, by and among Lydall, Inc., as borrower, the Guarantors named therein, and Bank of America, N.A., as Agent for the Lenders, filed as Exhibit 10.1 to the registrant's Form 10-Q dated May 11, 2020, and incorporated herein by this reference.

THIRD AMENDMENT TO SECOND AMENDED AND RESTATED CREDIT AGREEMENT AND FIRST AMENDMENT TO REVOLVING NOTES THIS THIRD AMENDMENT TO SECOND AMENDED AND RESTATED CREDIT AGREEMENT AND FIRST AMENDMENT TO NOTES (this “Agreement”) is made as of the 11th day of May, 2020, by and among LYDALL, INC.

- FORM S-8

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

JOINT FILING AGREEMENT

EXHIBIT B JOINT FILING AGREEMENT The undersigned hereby agree that the statement on Schedule 13D, dated May 5, 2020 (the “Schedule 13D”), with respect to the Common Stock, $0.

SCHEDULE OF TRANSACTIONS

EXHIBIT A SCHEDULE OF TRANSACTIONS Reporting Person Date of Transaction Number of Shares Acquired Price Per Share Low Price High Price Juniper Targeted Opportunity Fund, L.

LDL / Lydall, Inc. / Juniper Investment Company, Llc - SCHEDULE 13D Activist Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 Lydall, Inc. (Name of Issuer) Common Stock, $0.01 par value per share (Title of Class of Securities) 550819106 (CUSIP Number) John A. Bartholdson Juniper Investment Company, LLC 555 Madison Avenue, 24th Floor New York, New York 10022 (212) 339-8500 (Name, Address and Telep

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 24, 2020 LYDALL, INC. (Exact name of registrant as specified in its charter) Commission file number: 1-7665 Delaware 06-0865505 (State or Other Jurisdiction of Incorporation or

LYDALL, INC. AMENDED AND RESTATED 2012 STOCK INCENTIVE PLAN

Exhibit 99.1 LYDALL, INC. AMENDED AND RESTATED 2012 STOCK INCENTIVE PLAN 1. Purpose The purpose of this Amended and Restated 2012 Stock Incentive Plan (the “Plan”) of Lydall, Inc., a Delaware corporation (“Lydall”), is to advance the interests of Lydall’s stockholders by enhancing the ability of Lydall and the Lydall Affiliates (as defined in Section 11) to attract, retain and motivate persons who

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): April 24, 2020 LYDALL, INC. (Exact name of registrant as specified in its charter) Commission file number: 1-7665 Delaware 06-0865505 (State or Other Jurisdiction of Incorporation or

LDL / Lydall, Inc. DEFA14A - - DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant x Filed by a Party other than the Registrant ¨ Check the appropriate box: ¨ Preliminary Proxy Statement ¨ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ¨ Definitive Proxy State

LDL / Lydall, Inc. DEFA14A - - DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant x Filed by a Party other than the Registrant ¨ Check the appropriate box: ¨ Preliminary Proxy Statement ¨ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ¨ Definitive Proxy State

Lydall Provides COVID-19-Related Business Update Announces Ramp-down of its Automotive Facilities

Exhibit 99.1 Lydall, Inc. Telephone 860-646-1233 One Colonial Road Facsimile 860-646-4917 Manchester, CT 06042-2307 www.lydall.com specialty engineered products and materials NewsRelease Lydall Provides COVID-19-Related Business Update Announces Ramp-down of its Automotive Facilities MANCHESTER, CT – March 20, 2020 – LYDALL, INC. (NYSE: LDL) today announced the ramp-down of its manufacturing facil

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

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15 (d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): March 17, 2020 LYDALL, INC. (Exact name of registrant as specified in its charter) Commission file number: 1-7665 Delaware 06-0865505 (State or Other Jurisdiction of Incorporation or

LDL / Lydall, Inc. DEF 14A - - DEFINITIVE PROXY STATEMENT

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

Employment Agreement with Robert B. Junker, dated as of October 14, 2019, filed

Exhibit 10.50 AGREEMENT THIS AGREEMENT is made and entered into as of the 14th day of October, 2019, by and between LYDALL, INC., a Delaware corporation and/or its subsidiaries (together the "Company"), and Robert Junker (the "Employee"). W I T N E S S E T H WHEREAS, the Company and the Employee (the "Parties") have agreed to enter into this agreement (the "Agreement) relating to the termination o

Second Amendment to Second Amended and Restated Credit Agreement, dated February 14, 2020, by and among Lydall, Inc., as borrower, the Guarantors named therein, and Bank of America, N.A., as Agent for the Lenders, filed

Exhibit 10.54 SECOND AMENDMENT TO SECOND AMENDED AND RESTATED CREDIT AGREEMENT THIS SECOND AMENDMENT TO SECOND AMENDED AND RESTATED CREDIT AGREEMENT (this “Agreement”) is made as of the 14th day of February, 2020, by and among LYDALL, INC., a Delaware corporation (“Borrower”), LYDALL THERMAL/ACOUSTICAL, INC., a Delaware corporation (“Lydall Thermal”), LYDALL PERFORMANCE MATERIALS, INC., a Connecti

Inducement Nonqualified Stock Option Agreement, dated November 20, 2019, between the Registrant and Sara A. Greenstein

Exhibit 10.52 LYDALL, INC. INDUCEMENT NONQUALIFIED STOCK OPTION AGREEMENT THIS NONQUALIFIED STOCK OPTION AGREEMENT (this “Agreement”) is made between Lydall, Inc., a Delaware corporation (“Lydall”), and the recipient (the “Recipient”) with respect to a Nonqualified Stock Option pursuant to the award letter (the “Award Letter”), dated November 20, 2019, from Lydall to the Recipient. All capitalized

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, 2019 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 1-7665 Lydall, Inc. (Exact name of

List of subsidiaries of the Registrant, filed herewith.

Exhibit 21.1 Lydall, Inc. Subsidiary List as of December 31, 2019 I. Parent Company Lydall, Inc. II. First tier Lydall Thermal/Acoustical, Inc. Lydall Performance Materials, Inc. Lydall International, Inc. LDL C.V. Southern Felt Company, Inc. Lydall North America, LLC Susquehanna Capital Acquisition Co. III. Second tier Lydall Netherlands B.V. Texel Technical Materials Inc. Lydall Performance Mate

Description of the Company's Common Stock

Exhibit 4.3 DESCRIPTION OF SECURITIES REGISTERED PURSUANT TO SECTION 12 OF THE SECURITIES EXCHANGE ACT OF 1934 Lydall, Inc. (“Lydall,” the “Company,” “we” or “our”) has one class of securities registered under Section 12 of the Securities Exchange Act of 1934: our common stock, which is registered under Section 12(b). DESCRIPTION OF CAPITAL STOCK The following summary of the terms of our capital s

Power of Attorney, dated February 13, 2020 authorizing Randall B. Gonzales to sign this Annual Report on Form 10-K on behalf of each member of the Board of Directors indicated therein, filed herewith.

Exhibit 24.1 POWER OF ATTORNEY KNOW ALL MEN BY THESE PRESENTS, that each of the undersigned directors and officers of Lydall, Inc. (the “Corporation”), does hereby constitute and appoint Sara A. Greenstein and Randall B. Gonzales, and each of them singly, as his agent and attorney-in-fact to do any and all things and acts in his/her name and in the capacities indicated below and to execute any and

First Amendment to Second Amended and Restated Credit Agreement, dated December 6, 2019, by and among Lydall, Inc., as borrower, the Guarantors named therein, and Bank of America, N.A., as Agent for the Lenders, filed

Exhibit 10.53 FIRST AMENDMENT TO SECOND AMENDED AND RESTATED CREDIT AGREEMENT THIS FIRST AMENDMENT TO SECOND AMENDED AND RESTATED CREDIT AGREEMENT (this “Agreement”) is made as of the 6th day of December, 2019, by and among LYDALL, INC., a Delaware corporation (“Borrower”), LYDALL THERMAL/ACOUSTICAL, INC., a Delaware corporation (“Lydall Thermal”), LYDALL PERFORMANCE MATERIALS, INC., a Connecticut

Inducement Nonqualified Stock Option Agreement, dated November 1, 2019, between the Registrant and Robert B. Junker

Exhibit 10.51 LYDALL, INC. INDUCEMENT NONQUALIFIED STOCK OPTION AGREEMENT THIS NONQUALIFIED STOCK OPTION AGREEMENT (this “Agreement”) is made between Lydall, Inc., a Delaware corporation (“Lydall”), and the recipient (the “Recipient”) with respect to a Nonqualified Stock Option pursuant to the award letter (the “Award Letter”), dated November 1, 2019, from Lydall to the Recipient. All capitalized

As filed with the Securities and Exchange Commission on February 26, 2020

As filed with the Securities and Exchange Commission on February 26, 2020 Registration No.

LYDALL ANNOUNCES FINANCIAL RESULTS FOR THE FOURTH QUARTER AND YEAR ENDED DECEMBER 31, 2019

Lydall, Inc Telephone 860-646-1233 One Colonial Road Facsimile 860-646-4917 Manchester, CT 06042-2378 www.

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15 (d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): February 25, 2020 LYDALL INC /DE/ (Exact name of registrant as specified in its charter) Commission file number: 1-7665 Delaware 06-0865505 (State or Other Jurisdiction of Incorporat

LDL / Lydall, Inc. / Neuberger Berman Group LLC - NONE Passive Investment

Schedule 13G UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. n/a )* Lydall Inc (Name of Issuer) Common (Title of Class of Securities) 550819106 (CUSIP Number) December 31, 2019 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to which this Sc

LDL / Lydall, Inc. / DIMENSIONAL FUND ADVISORS LP - SCHEDULE 13G/A Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 20)* LYDALL INC (Name of Issuer) Common Stock (Title of Class of Securities) 550819106 (CUSIP Number) December 31, 2019 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to which this Schedule is

LDL / Lydall, Inc. / VANGUARD GROUP INC - SCHEDULE 13G Passive Investment

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 Name of issuer: Lydall Inc Title of Class of Securities: Common Stock CUSIP Number: 550819106 Date of Event Which Requires Filing of this Statement: December 31, 2019 Check the appropriate box to designate the rule pursuant to which this Schedule is filed: ☒ Rule 13d-1(b) ☐ Rule 13d-1(c

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

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15 (d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): January 20, 2020 LYDALL, INC. (Exact name of registrant as specified in its charter) Commission file number: 1-7665 Delaware 06-0865505 (State or Other Jurisdiction of Incorporation

EX-24

POWER OF ATTORNEY Know all by these presents, that the undersigned hereby constitutes and appoints each of Randall B.

EX-24

POWER OF ATTORNEY Know all by these presents, that the undersigned hereby constitutes and appoints each of Chief Financial Officer, General Counsel, Corporate Counsel, Secretary, Assistant Secretary, Corporate Controller or Assistant Controller or Kathleen J.

EX-24

POWER OF ATTORNEY Know all by these presents, that the undersigned hereby constitutes and appoints each of Chief Financial Officer, General Counsel, Corporate Counsel, Secretary, Assistant Secretary, Corporate Controller or Assistant Controller or Kathleen J.

EX-24

POWER OF ATTORNEY Know all by these presents, that the undersigned hereby constitutes and appoints each of Chief Financial Officer, General Counsel, Corporate Counsel, Secretary, Assistant Secretary, Corporate Controller or Assistant Controller or Kathleen J.

EX-24

POWER OF ATTORNEY Know all by these presents, that the undersigned hereby constitutes and appoints each of Chief Financial Officer, General Counsel, Corporate Counsel, Secretary, Assistant Secretary, Corporate Controller or Assistant Controller or Kathleen J.

EX-24

POWER OF ATTORNEY Know all by these presents, that the undersigned hereby constitutes and appoints each of Chief Financial Officer, General Counsel, Corporate Counsel, Secretary, Assistant Secretary, Corporate Controller or Assistant Controller or Kathleen J.

EX-24

POWER OF ATTORNEY Know all by these present, that the undersigned hereby constitutes and appoints each of Chad A.

EX-24

POWER OF ATTORNEY Know all by these presents, that the undersigned hereby constitutes and appoints each of Chief Financial Officer, General Counsel, Corporate Counsel, Secretary, Assistant Secretary, Corporate Controller or Assistant Controller or Kathleen J.

EX-24

POWER OF ATTORNEYPOWER OF ATTORNEY Know all by these present, that the undersigned hereby constitutes and appoints each of Chad A.

Form of Inducement Performance-Based Restricted Share Award Agreement, to be dated November 20, 2019, between the Registrant and Sara A. Greenstein

Exhibit 99.3 LYDALL, INC. FORM OF INDUCEMENT PERFORMANCE SHARE AWARD AGREEMENT (Three-Year Period) THIS PERFORMANCE SHARE AWARD AGREEMENT (this “Agreement”) is made between Lydall, Inc., a Delaware corporation (“Lydall”), and the recipient (the “Recipient”) pursuant to the award letter (the “Award Letter”), dated November 20, 2019, from Lydall to the Recipient. All capitalized terms used but not d

LDL / Lydall, Inc. S-8 - - FORM S-8

As filed with the Securities and Exchange Commission on October 29, 2019 Registration No.

Form of Inducement Time-Based Restricted Share Award Agreement, to be dated November 20, 2019, between the Registrant and Sara A. Greenstein

Exhibit 99.2 LYDALL, INC. FORM OF INDUCEMENT RESTRICTED SHARE AWARD AGREEMENT THIS RESTRICTED SHARE AWARD AGREEMENT (this “Agreement”) is made between Lydall, Inc., a Delaware corporation (“Lydall”), and the recipient (the “Recipient”) pursuant to the award letter (the “Award Letter”), dated November 20, 2019, from Lydall to the Recipient. All capitalized terms used but not defined in this Agreeme

Form of Inducement Performance-Based Restricted Share Award Agreement, to be dated November 1, 2019, between the Registrant and Robert B. Junker

Exhibit 99.1 LYDALL, INC. FORM OF INDUCEMENT PERFORMANCE SHARE AWARD AGREEMENT (Three-Year Period) THIS PERFORMANCE SHARE AWARD AGREEMENT (this “Agreement”) is made between Lydall, Inc., a Delaware corporation (“Lydall”), and the recipient (the “Recipient”) pursuant to the award letter (the “Award Letter”), dated November 1, 2019, from Lydall to the Recipient. All capitalized terms used but not de

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, 2019 OR ☐TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 1-7665 LYDALL INC /DE/ (Exac

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 29, 2019 LYDALL INC /DE/ (Exact name of registrant as specified in its charter) Commission file number: 1-7665 Delaware 06-0865505 (State or Other Jurisdiction of Incorporati

LYDALL ANNOUNCES FINANCIAL RESULTS FOR THE THIRD QUARTER ENDED SEPTEMBER 30, 2019

Lydall, Inc Telephone 860-646-1233 One Colonial Road Facsimile 860-646-4917 Manchester, CT 06042-2378 www.

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

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15 (d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): October 11, 2019 LYDALL, INC. (Exact name of registrant as specified in its charter) Commission file number: 1-7665 Delaware 06-0865505 (State or Other Jurisdiction of Incorporation

Separation and Transition Agreement with Dale G. Barnhart, dated October 11, 2019, filed as Exhibit 10.3 to the Registrant’s Form 8-K dated October 15, 2019 and incorporated herein by this reference.

Exhibit 10.3 SEPARATION AND TRANSITION AGREEMENT This Separation and Transition Agreement (“this Agreement”) is made and entered into by and among Lydall, Inc. (the “Company”), on the one hand, and Dale G. Barnhart (“Barnhart”) on the other hand (collectively, the “Parties”) is dated October 11, 2019 and effective as of November 18, 2019 (the “Effective Date”). 1. Transition of Service. As of the

Indemnification Agreement with Sara A. Greenstein, dated as of October 11, 2019, filed as Exhibit 10.2 to the Registrant’s Form 8-K dated October 15, 2019 and incorporated herein by this reference.

Exhibit 10.2 INDEMNIFICATION AGREEMENT This Agreement, made and entered into this 11th day of October, 2019 (“Agreement”), by and between Lydall, Inc., a Delaware corporation (“Company”), and Sara A. Greenstein (“Indemnitee”): WHEREAS, highly competent persons are becoming more reluctant to serve publicly-held corporations as directors or in other capacities unless they are provided with adequate

Employment Agreement with Sara A. Greenstein, dated as of October 11, 2019, filed as Exhibit 10.1 to the Registrant’s Form 8-K dated October 15, 2019 and incorporated herein by this reference.

Exhibit 10.1 EMPLOYMENT AGREEMENT THIS AGREEMENT is made and entered into as of the 11th day of October, 2019, by and between LYDALL, INC., a Delaware corporation (the “Company”), and Sara A. Greenstein (the “Executive”). W I T N E S S E T H WHEREAS, the Company and the Executive (the “Parties”) have agreed to enter into this agreement (the “Agreement”) relating to the employment of the Executive

LYDALL ANNOUNCES FINANCIAL RESULTS FOR THE SECOND QUARTER ENDED JUNE 30, 2019

Lydall, Inc Telephone 860-646-1233 One Colonial Road Facsimile 860-646-4917 Manchester, CT 06042-2378 www.

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 30, 2019 LYDALL INC /DE/ (Exact name of registrant as specified in its charter) Commission file number: 1-7665 Delaware 06-0865505 (State or Other Jurisdiction of Incorporation

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, 2019 OR ☐TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 1-7665 LYDALL INC /DE/ (Exact nam

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

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15 (d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): July 8, 2019 LYDALL, INC. (Exact name of registrant as specified in its charter) Commission file number: 1-7665 Delaware 06-0865505 (State or Other Jurisdiction of Incorporation or O

LDL / Lydall, Inc. SD - - FORM SD

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM SD SPECIALIZED DISCLOSURE REPORT LYDALL, INC. (Exact name of registrant as specified in its charter) Commission file number: 1-7665 Delaware 06-0865505 (State or other jurisdiction of incorporation or organization) (I.R.S. Employer Identification No.) One Colonial Road, Manchester, Connecticut 06042 (Address of principal

LYDALL ANNOUNCES FINANCIAL RESULTS FOR THE FIRST QUARTER ENDED MARCH 31, 2019

Lydall, Inc Telephone 860-646-1233 One Colonial Road Facsimile 860-646-4917 Manchester, CT 06042-2378 www.

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 30, 2019 LYDALL, INC. (Exact name of registrant as specified in its charter) Commission file number: 1-7665 Delaware 06-0865505 (State or Other Jurisdiction of Incorporation or

Quarterly Report - 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q ýQUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2019 OR ¨TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 1-7665 LYDALL, INC. (Exact name

LDL / Lydall, Inc. 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 o 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)

List of subsidiaries of the Registrant, filed herewith.

Exhibit 21.1 Lydall, Inc. Subsidiary List as of December 31, 2018 I. Parent Company Lydall, Inc. II. First tier Lydall Thermal/Acoustical, Inc. Lydall Performance Materials, Inc. Lydall International, Inc. LDL C.V. Southern Felt Company, Inc. Lydall North America, LLC Susquehanna Capital Acquisition Co. III. Second tier Lydall Netherlands B.V. Texel Technical Materials Inc. Lydall Performance Mate

Power of Attorney, dated February 14, 2019 authorizing Randall B. Gonzales to sign this Annual Report on Form 10-K on behalf of each member of the Board of Directors indicated therein, filed herewith.

Exhibit 24.1 POWER OF ATTORNEY KNOW ALL MEN BY THESE PRESENTS, that each of the undersigned directors and officers of Lydall, Inc. (the “Corporation”), does hereby constitute and appoint Dale G. Barnhart and Randall B. Gonzales, and each of them singly, as his agent and attorney-in-fact to do any and all things and acts in his/her name and in the capacities indicated below and to execute any and a

LDL / Lydall, Inc. 10-K (Annual Report)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Form 10-K ý ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Fiscal Year Ended December 31, 2018 OR o 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: 1-7665 Lydall, Inc. (Exact name of

Amended and Restated Form of Lydall, Inc. Performance Share Award Agreement (Three-Year Period) for U.S. employees, filed as Exhibit 10.22 to the Registrant's Annual Report on Form 10-K dated February 26, 2019 and incorporated herein by this reference.

Exhibit 10.22 FORM (FOR U.S. EMPLOYEES) OF LYDALL, INC. PERFORMANCE SHARE AWARD AGREEMENT (Three-Year Period) THIS PERFORMANCE SHARE AWARD AGREEMENT (this “Agreement”) is made between Lydall, Inc., a Delaware corporation (“Lydall”), and the recipient (the “Recipient”) with respect to an Award under Lydall’s 2012 Stock Incentive Plan (the “Plan”) pursuant to the award letter (the “Award Letter”), d

LYDALL ANNOUNCES FINANCIAL RESULTS FOR THE FOURTH QUARTER AND YEAR ENDED DECEMBER 31, 2018

Lydall, Inc Telephone 860-646-1233 One Colonial Road Facsimile 860-646-4917 Manchester, CT 06042-2378 www.

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15 (d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): February 25, 2019 LYDALL, INC. (Exact name of registrant as specified in its charter) Commission file number: 1-7665 Delaware 06-0865505 (State or Other Jurisdiction of Incorporation

LDL / Lydall, Inc. / VANGUARD GROUP INC Passive Investment

lydallinc.htm - Generated by SEC Publisher for SEC Filing SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 2 )* Name of issuer: Lydall Inc Title of Class of Securities: Common Stock CUSIP Number: 550819106 Date of Event Which Requires Filing of this Statement: December 31, 2018 Check the appropriate box to designate th

LDL / Lydall, Inc. / DIMENSIONAL FUND ADVISORS LP - SCHEDULE 13G/A Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 19)* LYDALL INC (Name of Issuer) Common Stock (Title of Class of Securities) 550819106 (CUSIP Number) December 31, 2018 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to which this Schedule is

Amended and Restated By-Laws of the Registrant

Exhibit 3.2 Amended and Restated Bylaws of Lydall, Inc. (a Delaware corporation), as amended and restated as of December 6, 2018 TABLE OF CONTENTS Page ARTICLE 1 Offices and Fiscal Year 1 Section 1.01 Registered Office 1 Section 1.02 Fiscal Year 1 ARTICLE 2 Notice - Waivers - Meetings 1 Section 2.01 Notice, What Constitutes 1 Section 2.02 Notice of Meetings of Board of Directors 2 Section 2.03 Not

Amendment No. 2 to the Agreement, dated December 10, 2018, between the Company and Scott M. Deakin, amending that certain Employment Agreement (as amended), dated August 21, 2015, filed herewith.

Exhibit 10.1 AMENDMENT NO. 2 TO THE AGREEMENT THIS AMENDMENT NO. 2 TO THE AGREEMENT (“Amendment”) is entered into as of the 10th day of December, 2018, by Lydall, Inc., a Delaware corporation ("Lydall"), and SCOTT M. DEAKIN (the "Employee"). W I T N E S S E T H WHEREAS, Lydall and the Employee entered into that certain Agreement dated August 21, 2015 (as amended, the "Agreement”) relating to the e

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, 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): December 6, 2018 LYDALL, INC. (Exact name of registrant as specified in its charter) Commission file number: 1-7665 Delaware 06-0865505 (State or Other Jurisdiction of Incorporation

Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K/A Amendment No. 1 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 31, 2018 LYDALL, INC. (Exact name of registrant as specified in its charter) Commission file number: 1-7665 Delaware 06-0865505 (State or Other Jurisdiction

Susquehanna Capital Acquisition Company and Subsidiaries Financial Statements December 31, 2017 and 2016

Exhibit 99.1 Susquehanna Capital Acquisition Company and Subsidiaries Financial Statements December 31, 2017 and 2016 Susquehanna Capital Acquisition Company and Subsidiaries Table of Contents December 31, 2017 and 2016 Page Independent Auditors’ Report 1 Financial Statements Consolidated Balance Sheet 3 Consolidated Statement of Earnings and Comprehensive Income 4 Consolidated Statement of Change

Lydall, Inc. Unaudited Pro Forma Condensed Combined Financial Statements

Exhibit 99.3 Lydall, Inc. Unaudited Pro Forma Condensed Combined Financial Statements Overview On August 31, 2018, Lydall, Inc. (the “Company”) completed the acquisition of Interface Performance Materials ("Interface"), based in Lancaster, Pennsylvania. A globally-recognized leader in the delivery of engineered sealing solutions, the Interface operations manufacture wet-laid gasket and specialty m

Susquehanna Capital Acquisition Company and Subsidiaries Financial Statements June 30, 2018 and 2017

Exhibit 99.2 Susquehanna Capital Acquisition Company and Subsidiaries Financial Statements June 30, 2018 and 2017 Susquehanna Capital Acquisition Company and Subsidiaries Table of Contents Page Financial Statements Condensed Consolidated Balance Sheet 1 Condensed Consolidated Statement of Earnings and Comprehensive Income 2 Condensed Consolidated Statement of Changes in Stockholders’ Equity (Defic

LDL / Lydall, Inc. 10-Q (Quarterly Report)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q ýQUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2018 OR ¨TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 1-7665 LYDALL, INC. (Exact n

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): November 5, 2018 LYDALL, INC. (Exact name of registrant as specified in its charter) Commission file number: 1-7665 Delaware 06-0865505 (State or Other Jurisdiction of Incorporation

LYDALL ANNOUNCES FINANCIAL RESULTS FOR THE THIRD QUARTER ENDED SEPTEMBER 30, 2018

Lydall, Inc Telephone 860-646-1233 One Colonial Road Facsimile 860-646-4917 Manchester, CT 06042-2378 www.

Security Agreement, dated August 31, 2018, by and between Susquehanna Capital Acquisition Co., and Bank of America, N.A., filed as Exhibit 10.9 to the registrant's Form 8-K dated September 7, 2018 and incorporated herein by reference.

Exhibit 10.9 Execution Version SECURITY AGREEMENT THIS SECURITY AGREEMENT (this “Agreement”), dated as of August 31, 2018, is made by and between SUSQUEHANNA CAPITAL ACQUISITION CO., a Delaware corporation (the “Guarantor”), and BANK OF AMERICA, N.A., a national banking association (“Bank of America”), as Administrative Agent (in such capacity, the “Agent”) for the ratable benefit of itself and th

Material Modification to Rights of Security Holders, Financial Statements and Exhibits, Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant, 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): August 31, 2018 LYDALL, INC. (Exact name of registrant as specified in its charter) Commission file number: 1-7665 Delaware 06-0865505 (State or Other Jurisdiction of Incorporation or

Security Agreement, dated August 31, 2018, by and between Interface Performance Materials, Inc., and Bank of America, N.A., filed as Exhibit 10.10 to the registrant's Form 8-K dated September 7, 2018 and incorporated herein by reference.

Exhibit 10.10 Execution Version SECURITY AGREEMENT THIS SECURITY AGREEMENT (this “Agreement”), dated as of August 31, 2018, is made by and between INTERFACE PERFORMANCE MATERIALS, INC., a Delaware corporation (the “Guarantor”), and BANK OF AMERICA, N.A., a national banking association (“Bank of America”), as Administrative Agent (in such capacity, the “Agent”) for the ratable benefit of itself and

Second Amended and Restated Security Agreement, dated August 31, 2018 by and between Lydall Thermal/Acoustical, Inc., and Bank of America, N.A., filed as Exhibit 10.4 to the registrant's Form 8-K dated September 7, 2018 and incorporated herein by reference.

Exhibit 10.4 Execution Version SECOND AMENDED AND RESTATED SECURITY AGREEMENT THIS SECOND AMENDED AND RESTATED SECURITY AGREEMENT (this “Agreement”), dated as of August 31, 2018, is made by and between LYDALL THERMAL/ACOUSTICAL, INC., a Delaware corporation (the “Guarantor”), and BANK OF AMERICA, N.A., a national banking association (“Bank of America”), as Administrative Agent (in such capacity, t

Security Agreement, dated August 31, 2018, by and between Lydall North America LLC, and Bank of America, N.A., filed as Exhibit 10.8 to the registrant's Form 8-K dated September 7, 2018 and incorporated herein by reference.

Exhibit 10.8 Execution Version SECURITY AGREEMENT THIS SECURITY AGREEMENT (this “Agreement”), dated as of August 31, 2018, is made by and between LYDALL NORTH AMERICA, LLC, a Connecticut limited liability company (the “Guarantor”), and BANK OF AMERICA, N.A., a national banking association (“Bank of America”), as Administrative Agent (in such capacity, the “Agent”) for the ratable benefit of itself

Amended and Restated Security Agreement, dated August 31, 2018 by and between Lydall Southern Felt Company, Inc., and Bank of America, N.A., filed as Exhibit 10.7 to the registrant's Form 8-K dated September 7, 2018 and incorporated herein by reference.

Exhibit 10.7 Execution Version AMENDED AND RESTATED SECURITY AGREEMENT THIS AMENDED AND RESTATED SECURITY AGREEMENT (this “Agreement”), dated as of August 31, 2018, is made by and between SOUTHERN FELT COMPANY, INC., a South Carolina corporation (the “Guarantor”), and BANK OF AMERICA, N.A., a national banking association (“Bank of America”), as Administrative Agent (in such capacity, the “Agent”)

Security Agreement, dated August 31, 2018, by and between Interface Sealing Solutions, Inc., and Bank of America, N.A., filed as Exhibit 10.11 to the registrant's Form 8-K dated September 7, 2018 and incorporated herein by reference.

Exhibit 10.11 Execution Version SECURITY AGREEMENT THIS SECURITY AGREEMENT (this “Agreement”), dated as of August 31, 2018, is made by and between INTERFACE SEALING SOLUTIONS, INC., a Delaware corporation (the “Guarantor”), and BANK OF AMERICA, N.A., a national banking association (“Bank of America”), as Administrative Agent (in such capacity, the “Agent”) for the ratable benefit of itself and the

Second Amended and Restated Security Agreement, dated August 31, 2018 by and between Lydall International, Inc., and Bank of America, N.A., filed as Exhibit 10.6 to the registrant's Form 8-K dated September 7, 2018 and incorporated herein by reference.

Exhibit 10.6 Execution Version SECOND AMENDED AND RESTATED SECURITY AGREEMENT THIS SECOND AMENDED AND RESTATED SECURITY AGREEMENT (this “Agreement”), dated as of August 31, 2018, is made by and between LYDALL INTERNATIONAL, INC., a Delaware corporation (the “Guarantor”), and BANK OF AMERICA, N.A., a national banking association (“Bank of America”), as Administrative Agent (in such capacity, the “A

Second Amended and Restated Security Agreement, dated August 31, 2018 by and between Lydall, Inc., and Bank of America, N.A., filed as Exhibit 10.3 to the registrant's Form 8-K dated September 7, 2018 and incorporated herein by reference.

Exhibit 10.3 Execution Version SECOND AMENDED AND RESTATED SECURITY AGREEMENT THIS SECOND AMENDED AND RESTATED SECURITY AGREEMENT (this “Agreement”), dated as of August 31, 2018, is made by and between LYDALL, INC., a Delaware corporation (the “Borrower”), and BANK OF AMERICA, N.A., a national banking association (“Bank of America”), as Administrative Agent (in such capacity, the “Agent”) for the

Second Amended and Restated Credit Agreement, dated August 31, 2018, by and among Lydall, Inc., as borrower, the Guarantors named therein, and Bank of America, N.A., as Agent for the Lenders, filed as Exhibit 10.2 to the registrant's Form 8-K dated September 7, 2018 and incorporated herein by reference.

Exhibit 10.2 Execution Version Deal CUSIP: 55081WAC9 Revolving Loan CUSIP: 55081WAD7 Term Loan CUSIP: 55081WAE5 SECOND AMENDED AND RESTATED CREDIT AGREEMENT Dated as of August 31, 2018 among LYDALL, INC., as the Borrower, CERTAIN SUBSIDIARIES OF THE BORROWER PARTY HERETO, as the Guarantors, BANK OF AMERICA, N.A., as Administrative Agent, Swingline Lender and L/C Issuer, and THE LENDERS PARTY HERET

Second Amended and Restated Security Agreement, dated August 31, 2018 by and between Lydall Performance Materials, Inc. (formerly known as Lydall Filtration/Separation, Inc.), and Bank of America, N.A., filed as Exhibit 10.5 to the registrant's Form 8-K dated September 7, 2018 and incorporated herein by reference.

Exhibit 10.5 Execution Version SECOND AMENDED AND RESTATED SECURITY AGREEMENT THIS SECOND AMENDED AND RESTATED SECURITY AGREEMENT (this “Agreement”), dated as of August 31, 2018, is made by and between LYDALL PERFORMANCE MATERIALS, INC. (formerly Lydall Filtration/Separation, Inc.), a Connecticut corporation (the “Guarantor”), and BANK OF AMERICA, N.A., a national banking association (“Bank of Ame

AUTOMOTIVE FILTRATION & ENGINEERED MATERIALS Thermal Acoustical Solutions Performance Materials SPECIALTY ENGINEERED PRODUCTS AND MATERIALS THIS DOCUMENT, OR AN EMBODIMENT OF IT IN ANY MEDIA, DISCLOSES INFORMATION THAT IS PROPRIETARY, IS THE PROPERTY

Exhibit 99.2 AUTOMOTIVE FILTRATION & ENGINEERED MATERIALS Thermal Acoustical Solutions Performance Materials SPECIALTY ENGINEERED PRODUCTS AND MATERIALS THIS DOCUMENT, OR AN EMBODIMENT OF IT IN ANY MEDIA, DISCLOSES INFORMATION THAT IS PROPRIETARY, IS THE PROPERTY OF LYDALL, INC . AND/OR ITS AFFILIATE (COLLECTIVELY, “LYDALL”), IS AN UNPUBLISHED WORK PROTECTED UNDER APPLICABLE COPYRIGHT LAWS AND IS

Stock Purchase Agreement, dated August 9, 2018, by and among Lydall, Inc., Susquehanna Capital Acquisition Co. and Vulcan Global, LLC, an affiliate of Wind Point Partners, filed as Exhibit 2.1 to the Registrant’s Form 8-K dated August 14, 2018 and incorporated herein by reference. (The Company will supplementally furnish any omitted schedules to the Commission upon request.)

Exhibit 2.1 EXECUTION VERSION STOCK PURCHASE AGREEMENT by and among LYDALL, INC., Susquehanna Capital Acquisition Co., AND VULCAN GLOBAL, LLC Dated as of August 9, 2018 TABLE OF CONTENTS Page ARTICLE I PURCHASE AND SALE 1 1.1 Purchase and Sale 1 1.2 Closing; Actions at the Closing 1 1.3 Adjustments at and After the Closing 3 1.4 Withholding Rights 7 1.5 Further Assurances 7 ARTICLE II REPRESENTATI

Regulation FD Disclosure, 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): August 9, 2018 LYDALL, INC. (Exact name of registrant as specified in its charter) Commission file number: 1-7665 Delaware 06-0865505 (State or Other Jurisdiction of Incorporation or

Lydall to Acquire Interface Performance Materials, a Leader in Gasket and Specialty Materials

Exhibit 99.1 Lydall, Inc. One Colonial Road Manchester, CT 06042-2307 Telephone 860-646-1233 Facsimile 860-646-4917 www.lydall.com News Release Lydall to Acquire Interface Performance Materials, a Leader in Gasket and Specialty Materials - Strengthens engineered materials offering, with a leading globally-recognized brand - Leverages existing manufacturing capabilities and know-how - Enhances Lyda

LYDALL ANNOUNCES FINANCIAL RESULTS FOR THE SECOND QUARTER ENDED JUNE 30, 2018

Lydall, Inc Telephone 860-646-1233 One Colonial Road Facsimile 860-646-4917 Manchester, CT 06042-2378 www.

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 31, 2018 LYDALL, INC. (Exact name of registrant as specified in its charter) Commission file number: 1-7665 Delaware 06-0865505 (State or Other Jurisdiction of Incorporation or

LDL / Lydall, Inc. 10-Q (Quarterly Report)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q ýQUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2018 OR ¨TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 1-7665 LYDALL, INC. (Exact name o

LDL / Lydall, Inc. FORM SD

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM SD SPECIALIZED DISCLOSURE REPORT LYDALL, INC. (Exact name of registrant as specified in its charter) Commission file number: 1-7665 Delaware 06-0865505 (State or other jurisdiction of incorporation or organization) (I.R.S. Employer Identification No.) One Colonial Road, Manchester, Connecticut 06042 (Address of principal

LYDALL ANNOUNCES FINANCIAL RESULTS FOR THE FIRST QUARTER ENDED MARCH 31, 2018

Lydall, Inc Telephone 860-646-1233 One Colonial Road Facsimile 860-646-4917 Manchester, CT 06042-2378 www.

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): May 1, 2018 LYDALL, INC. (Exact name of registrant as specified in its charter) Commission file number: 1-7665 Delaware 06-0865505 (State or Other Jurisdiction of Incorporation or Or

Employment Agreement with Randall B. Gonzales dated March 12, 2018, filed as Exhibit 10.1 to the Registrant’s Form 10-Q dated May 1, 2018 and incorporated herein by this reference.

AGREEMENT THIS AGREEMENT is made and entered by and between LYDALL, INC., a Delaware corporation (the "Company"), and Randall B. Gonzales (“the "Employee"), effective March 12, 2018. W I T N E S S E T H WHEREAS, the Company and the Employee (the "Parties") have agreed to enter into this agreement (the "Agreement) relating to the termination of the employment of the Employee; NOW, THEREFORE, in con

Offer letter for Randall B. Gonzales dated January 5, 2018, filed as Exhibit 10.2 to the Registrant’s Form 10-Q dated May 1, 2018 and incorporated herein by this reference.

Lydall, Inc Telephone 860-646-1233 One Colonial Road Facsimile 860-646-4917 P.O. Box 151 Facsimile 860-646-8847 Manchester, CT 06045-0151 www.lydall.com January 5, 2018 Randall B. Gonzales [REDACTED] [REDACTED] Dear Randy: I am pleased to extend an invitation to you to join Lydall, Inc. as Executive Vice President and Chief Financial Officer. Your starting date will be on a mutually agreed upon da

LDL / Lydall, Inc. 10-Q (Quarterly Report)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q ýQUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2018 OR ¨TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 1-7665 LYDALL, INC. (Exact name

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 21, 2018 LYDALL, INC. (Exact name of registrant as specified in its charter) Commission file number: 1-7665 Delaware 06-0865505 (State or Other Jurisdiction of Incorporation or

RECAST (UNAUDITED) QUARTERLY AND FULL YEAR SEGMENT INFORMATION FOR 2017 AND 2016

Exhibit 99.1 RECAST (UNAUDITED) QUARTERLY AND FULL YEAR SEGMENT INFORMATION FOR 2017 AND 2016 Effective January 1, 2018, the Company changed its segment reporting by combining its Thermal/Acoustical Metals and Thermal/Acoustical Fibers segments into a single operating segment named Thermal Acoustical Solutions. The Company’s other reportable segments, Technical Nonwovens and Performance Materials,

EX-24

POWER OF ATTORNEY Know all by these present, that the undersigned hereby constitutes and appoints each of Chad A.

LDL / Lydall, Inc. DEFINITIVE PROXY STATEMENT

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 o 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

Document UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15 (d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): February 21, 2018 LYDALL, INC. (Exact name of registrant as specified in its charter ) Commission file number: 1-7665 Delaware 06-0865505 (State or Other Jurisdiction of Inc

LYDALL ANNOUNCES FINANCIAL RESULTS FOR THE FOURTH QUARTER AND YEAR ENDED DECEMBER 31, 2017

Exhibit Lydall, Inc Telephone 860-646-1233 One Colonial Road Facsimile 860-646-4917 Manchester, CT 06042-2378 www.

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): February 16, 2018 LYDALL, INC. (Exact name of registrant as specified in its charter) Commission file number: 1-7665 Delaware 06-0865505 (State or Other Jurisdiction of Incorporation

LYDALL NAMES NEW CHIEF FINANCIAL OFFICER

Exhibit 99.1 Lydall, Inc Telephone 860-646-1233 One Colonial Road Facsimile 860-646-4917 Manchester, CT 06042-2307 www.lydall.com NewsRelease LYDALL NAMES NEW CHIEF FINANCIAL OFFICER MANCHESTER, CT ? February 21, 2018 - Lydall, Inc. (NYSE: LDL) today announced that Randall B. Gonzales, 46, has been appointed Executive Vice President and Chief Financial Officer of Lydall, Inc., effective upon the c

List of subsidiaries of the Registrant, filed herewith.

Exhibit 21.1 Lydall, Inc. Subsidiary List as of December 31, 2017 I. Parent Company Lydall, Inc. II. First tier Lydall Thermal/Acoustical, Inc. Lydall Performance Materials, Inc. Lydall International, Inc. LDL C.V. Southern Felt Company, Inc. Lydall North America, LLC III. Second tier Texel Technical Materials, Inc. Lydall Netherlands B.V. IV. Third tier Lydall Thermal/Acoustical (Taicang) Company

Power of Attorney, dated February 16, 2018 authorizing Scott M. Deakin to sign this Annual Report on Form 10-K on behalf of each member of the Board of Directors indicated therein, filed herewith.

EX-24.1 4 ldl-201712x31exhibit241.htm EXHIBIT 24.1 Exhibit 24.1 POWER OF ATTORNEY KNOW ALL MEN BY THESE PRESENTS, that each of the undersigned directors and officers of Lydall, Inc. (the “Corporation”), does hereby constitute and appoint Dale G. Barnhart and Scott M. Deakin, and each of them singly, as his agent and attorney-in-fact to do any and all things and acts in his/her name and in the capa

LDL / Lydall, Inc. 10-K (Annual Report)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Form 10-K ý ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Fiscal Year Ended December 31, 2017 OR o 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: 1-7665 Lydall, Inc. (Exact name of

LDL / Lydall, Inc. / VANGUARD GROUP INC Passive Investment

lydallinc.htm - Generated by SEC Publisher for SEC Filing SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 1 )* Name of issuer: Lydall Inc Title of Class of Securities: Common Stock CUSIP Number: 550819106 Date of Event Which Requires Filing of this Statement: December 31, 2017 Check the appropriate box to designate th

LDL / Lydall, Inc. / DIMENSIONAL FUND ADVISORS LP - SCHEDULE 13G/A Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 18)* LYDALL INC (Name of Issuer) Common Stock (Title of Class of Securities) 550819106 (CUSIP Number) December 31, 2017 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to which this Schedule is

Lydall 8-K (Current Report/Significant Event)

Document 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 31, 2017 LYDALL, INC. (Exact name of registrant as specified in its charter ) Commission file number: 1-7665 Delaware 06-0865505 (State or Other Jurisdiction of Inco

LYDALL ANNOUNCES FINANCIAL RESULTS FOR THE THIRD QUARTER ENDED SEPTEMBER 30, 2017

Exhibit Lydall, Inc Telephone 860-646-1233 One Colonial Road Facsimile 860-646-4917 Manchester, CT 06042-2378 www.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q ýQUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2017 ¨TRANSITION REPORT PURSUANT T

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q ýQUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2017 OR ¨TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 1-7665 LYDALL, INC. (Exact n

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, 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): August 30, 2017 LYDALL, INC. (Exact name of registrant as specified in its charter) Commission file number: 1-7665 Delaware 06-0865505 (State or Other Jurisdiction of Incorporation o

LYDALL ANNOUNCES FINANCIAL RESULTS FOR THE SECOND QUARTER ENDED JUNE 30, 2017

Exhibit Lydall, Inc Telephone 860-646-1233 One Colonial Road Facsimile 860-646-4917 Manchester, CT 06042-2378 www.

Financial Statements and Exhibits, Results of Operations and Financial Condition

Document 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 1, 2017 LYDALL, INC. (Exact name of registrant as specified in its charter ) Commission file number: 1-7665 Delaware 06-0865505 (State or Other Jurisdiction of Incorp

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q ýQUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2017 ¨TRANSITION REPORT PURSUANT TO SEC

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q ýQUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2017 OR ¨TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 1-7665 LYDALL, INC. (Exact name o

Lydall FORM SD

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM SD SPECIALIZED DISCLOSURE REPORT LYDALL, INC. (Exact name of registrant as specified in its charter) Commission file number: 1-7665 Delaware 06-0865505 (State or other jurisdiction of incorporation or organization) (I.R.S. Employer Identification No.) One Colonial Road, Manchester, Connecticut 06042 (Address of principal

EX-24

POWER OF ATTORNEY Know all by these present, that the undersigned hereby constitutes and appoints each of Chad A.

LYDALL ANNOUNCES FINANCIAL RESULTS FOR THE FIRST QUARTER ENDED MARCH 31, 2017

Exhibit Lydall, Inc Telephone 860-646-1233 One Colonial Road Facsimile 860-646-4917 Manchester, CT 06042-2378 www.

Financial Statements and Exhibits, Results of Operations and Financial Condition

Document 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 2, 2017 LYDALL, INC. (Exact name of registrant as specified in its charter ) Commission file number: 1-7665 Delaware 06-0865505 (State or Other Jurisdiction of Incorpora

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q ýQUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2017 ¨TRANSITION REPORT PURSUANT TO SE

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q ýQUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2017 OR ¨TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 1-7665 LYDALL, INC. (Exact name

Lydall 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 o 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)

LYDALL ANNOUNCES FINANCIAL RESULTS FOR THE FOURTH QUARTER AND YEAR ENDED DECEMBER 31, 2016

Exhibit Lydall, Inc Telephone 860-646-1233 One Colonial Road Facsimile 860-646-4917 Manchester, CT 06042-2378 www.

Lydall 8-K (Current Report/Significant Event)

Document 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 22, 2017 LYDALL, INC. (Exact name of registrant as specified in its charter ) Commission file number: 1-7665 Delaware 06-0865505 (State or Other Jurisdiction of Inc

POWER OF ATTORNEY

Exhibit 24.1 POWER OF ATTORNEY KNOW ALL MEN BY THESE PRESENTS, that each of the undersigned directors and officers of Lydall, Inc. (the ?Corporation?), does hereby constitute and appoint Dale G. Barnhart and Scott M. Deakin, and each of them singly, as his agent and attorney-in-fact to do any and all things and acts in his/her name and in the capacities indicated below and to execute any and all i

Lydall, Inc. Subsidiary List as of December 31, 2016

Exhibit 21.1 Lydall, Inc. Subsidiary List as of December 31, 2016 I. Parent Company Lydall, Inc. II. First tier Lydall Thermal/Acoustical, Inc. Lydall Performance Materials, Inc. Lydall International, Inc. LDL C.V. Southern Felt Company, Inc. Lydall North America, LLC III. Second tier Lydall Asia Limited Texel Technical Materials, Inc. Lydall Netherlands B.V. IV. Third tier Lydall Thermal/Acoustic

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Form 10-K ý ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Fiscal Year Ended December 31, 2016 o TRANSITION REPORT PURSUANT TO SECTI

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Form 10-K ý ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Fiscal Year Ended December 31, 2016 OR o 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: 1-7665 Lydall, Inc. (Exact name of

Employment Agreement with Paul A. Marold dated February 18, 2016, filed as Exhibit 10.6 to the Registrant's Annual Report on Form 10-K dated February 22, 2017 and incorporated herein by reference.

AGREEMENT THIS AGREEMENT is made and entered into as of the 18th day of February, 2016, by and between LYDALL, INC.

Lydall 3G (Passive Acquisition of More Than 5% of Shares)

lydallinc.htm - Generated by SEC Publisher for SEC Filing SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 0 )* Name of issuer: Lydall Inc Title of Class of Securities: Common Stock CUSIP Number: 550819106 Date of Event Which Requires Filing of this Statement: December 31, 2016 Check the appropriate box to designate th

LDL / Lydall, Inc. / DIMENSIONAL FUND ADVISORS LP - SCHEDULE 13G/A Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 16)* LYDALL INC (Name of Issuer) Common Stock (Title of Class of Securities) 550819106 (CUSIP Number) December 31, 2016 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to which this Schedule is

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 12, 2016 LYDALL, INC. (Exact name of registrant as specified in its charter) Commission file number: 1-7665 Delaware 06-0865505 (State or Other Jurisdiction of Incorporation

USE OR DISCLOSURE OF INFORMATION CONTAINED ON THIS SHEET IS SUBJECT TO THE RESTRICTIONS ON THE TITLE SLIDE Forward - looking Statements This presentation contains “forward - looking statements” within the Private Securities Litigation Reform Act of 1

AUTOMOTIVE FILTRATION & ENGINEERED MATERIALS Thermal/Acoustical Metals Thermal/Acoustical Fibers Performance Materials SPECIALTY ENGINEERED PRODUCTS AND MATERIALS THIS DOCUMENT, OR AN EMBODIMENT OF IT IN ANY MEDIA, DISCLOSES INFORMATION THAT IS PROPRIETARY, IS THE PROPERTY OF LYDALL, INC .

# # #

Lydall, Inc. One Colonial Road Manchester, CT 06042-2307 Telephone 860-646-1233 Facsimile 860-646-4917 www.lydall.com specialty engineered products and materials Exhibit 99.2 News Release Lydall to Acquire Gutsche, a Leader in Industrial Filtration and Technical Materials - Solidifies Lydall as a global leader in industrial filtration markets - Further diversifies Lydall into complementary geograp

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 29, 2016 LYDALL, INC. (Exact name of registrant as specified in its charter) Commission file number: 1-7665 Delaware 06-0865505 (State or Other Jurisdiction of Incorporation

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q ýQUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2016 ¨TRANSITION REPORT PURSUANT T

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q ýQUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2016 OR ¨TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 1-7665 LYDALL, INC. (Exact n

LYDALL ANNOUNCES FINANCIAL RESULTS FOR THE THIRD QUARTER ENDED SEPTEMBER 30, 2016

Exhibit Lydall, Inc Telephone 860-646-1233 One Colonial Road Facsimile 860-646-4917 Manchester, CT 06042-2378 www.

Financial Statements and Exhibits, Results of Operations and Financial Condition

Document 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 1, 2016 LYDALL, INC. (Exact name of registrant as specified in its charter ) Commission file number: 1-7665 Delaware 06-0865505 (State or Other Jurisdiction of Inco

Regulation FD Disclosure, Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K/A Amendment No. 1 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, 2016 LYDALL, INC. (Exact name of registrant as specified in its charter) Commission file number: 1-7665 Delaware 06-0865505 (State or Other Jurisdiction of

ADS INC. AUDITED CONSOLIDATED FINANCIAL STATEMENTS For the year ended January 31, 2016 and 2015

Exhibit 99.4 ADS INC. AUDITED CONSOLIDATED FINANCIAL STATEMENTS For the year ended January 31, 2016 and 2015 ADS INC. SUMMARY INDEPENDENT AUDITOR'S REPORT 1 - 2 FINANCIAL STATEMENTS Consolidated income 3 Consolidated retained earnings 4 Consolidated contributed surplus 4 Consolidated cash flow 5 Consolidated balance sheet 6 - 7 Notes to the consolidated financial statements 8 - 24 INDEPENDENT AUDI

Lydall, Inc. Unaudited Pro Forma Condensed Combined Financial Statements

Exhibit 99.5 Lydall, Inc. Unaudited Pro Forma Condensed Combined Financial Statements Overview On July 7, 2016, Lydall, Inc. (the ?Company?) completed an acquisition of the non-woven and coating materials businesses primarily operating under the Texel brand (?Texel?) from ADS, Inc. (?ADS?), a Canadian based corporation (including its shareholders), for $96.3 million in cash, subject to certain cus

LYDALL ANNOUNCES FINANCIAL RESULTS FOR THE SECOND QUARTER ENDED JUNE 30, 2016

Exhibit Lydall, Inc Telephone 860-646-1233 One Colonial Road Facsimile 860-464-4917 Manchester, CT 06042-2378 www.

Lydall 8-K (Current Report/Significant Event)

Document 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 2, 2016 LYDALL, INC. (Exact name of registrant as specified in its charter ) Commission file number: 1-7665 Delaware 06-0865505 (State or Other Jurisdiction of Incorp

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q ýQUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2016 ¨TRANSITION REPORT PURSUANT TO SEC

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q ýQUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2016 OR ¨TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 1-7665 LYDALL, INC. (Exact name o

Lydall Acquires Texel, a Leader in Innovative Technical Materials

Exhibit 99.1 Lydall, Inc. One Colonial Road Manchester, CT 06042-2307 Telephone 860-646-1233 Facsimile 860-646-4917 www.lydall.com Lydall Acquires Texel, a Leader in Innovative Technical Materials - Strengthens Lydall?s position as an industry leader in engineered materials - Further diversifies Lydall into attractive adjacent markets with a leading brand - Provides opportunity to leverage existin

Lydall 8-K (Current Report/Significant Event)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15 (d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): July 7, 2016 LYDALL, INC. (Exact name of registrant as specified in its charter) Commission file number: 1-7665 Delaware 06-0865505 (State or Other Jurisdiction of Incorporation or O

JOINDER AND SECOND AMENDMENT AND REAFFIRMATION OF GUARANTY AGREEMENT

Exhibit 10.2 Execution Version JOINDER AND SECOND AMENDMENT AND REAFFIRMATION OF GUARANTY AGREEMENT THIS JOINDER AND SECOND AMENDMENT AND REAFFIRMATION OF GUARANTY AGREEMENT (this ?Agreement?) is made as of the 7th day of July, 2016, by and among LYDALL, INC., a Delaware corporation (?Borrower?), LYDALL THERMAL/ACOUSTICAL, INC., a Delaware corporation (?Lydall Thermal?), LYDALL PERFORMANCE MATERIA

AUTOMOTIVE FILTRATION & ENGINEERED MATERIALS Thermal/Acoustical Metals Thermal/Acoustical Fibers Performance Materials SPECIALTY ENGINEERED PRODUCTS AND MATERIALS THIS DOCUMENT, OR AN EMBODIMENT OF IT IN ANY MEDIA, DISCLOSES INFORMATION THAT IS PROPR

Exhibit 99.3 AUTOMOTIVE FILTRATION & ENGINEERED MATERIALS Thermal/Acoustical Metals Thermal/Acoustical Fibers Performance Materials SPECIALTY ENGINEERED PRODUCTS AND MATERIALS THIS DOCUMENT, OR AN EMBODIMENT OF IT IN ANY MEDIA, DISCLOSES INFORMATION THAT IS PROPRIETARY, IS THE PROPERTY OF LYDALL, INC . AND/OR ITS AFFILIATE (COLLECTIVELY, ?LYDALL?), IS AN UNPUBLISHED WORK PROTECTED UNDER APPLICABLE

Share Purchase Agreement, dated July 7, 2016, by and among ADS, Inc. and Lydall Canada Acquisition Corp., filed as Exhibit 2.1 to the Registrant’s Form 8-K dated July 12, 2016 and incorporated herein by reference. The Registrant will supplementally furnish any omitted schedules to the Commission upon request.

EXECUTION COPY Acquisition by LYDALL CANADA ACQUISITION CORP. of all of the issued and outstanding shares of Texel Technical Materials, Inc./Texel Mat?riaux Techniques Inc. SHARE PURCHASE AGREEMENT Dated July 7, 2016 table of contents ARTICLE 1 DEFINITIONS 1 1.1 Defined Terms 1 ARTICLE 2 PURCHASE AND SALE; PURCHASE PRICE 1 2.1 Purchase and Sale 1 2.2 Purchase Price 2 2.3 Closing Date Payments 2 2.

Lydall FORM SD

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM SD SPECIALIZED DISCLOSURE REPORT LYDALL, INC. (Exact name of registrant as specified in its charter) Commission file number: 1-7665 Delaware 06-0865505 (State or other jurisdiction of incorporation or organization) (I.R.S. Employer Identification No.) One Colonial Road, Manchester, Connecticut 06042 (Address of principal

Lydall 8-K (Current Report/Significant Event)

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): May 3, 2016 LYDALL, INC. (Exact name of registrant as specified in its charter ) Commission file number: 1-7665 Delaware 06-0865505 (State or Other Jurisdiction of Incorporation

LYDALL ANNOUNCES FINANCIAL RESULTS FOR THE FIRST QUARTER ENDED MARCH 31, 2016 ● EPS of $0.54, up 29% from adjusted Q1 2015 ● Organic sales growth of 2.9% ● Gross margin of 25.0%, up 340 basis points from adjusted Q1 2015 ● Operating margin of 10.5%,

Exhibit Lydall, Inc Telephone 860-646-1233 One Colonial Road Facsimile 860-464-4917 Manchester, CT 06042-2378 www.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q ýQUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2016 ¨TRANSITION REPORT PURSUANT TO SE

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, 2016 OR ?TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 1-7665 LYDALL, INC. (Exact name

Lydall DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (RULE 14a-101) SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant x Filed by a Party other than the Registrant ? Check the appropriate box: ? Preliminary Proxy Statement ? Confidential, for Use of the Commission Only (a

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 30, 2016 LYDALL, INC. (Exact name of registrant as specified in its charter) Commission file number: 1-7665 Delaware 06-0865505 (State or Other Jurisdiction of Incorporation or

LYDALL, INC. ANNUAL INCENTIVE PERFORMANCE PROGRAM (Approved on March 30, 2016; Effective January 1, 2016)

Exhibit 99.1 LYDALL, INC. ANNUAL INCENTIVE PERFORMANCE PROGRAM (Approved on March 30, 2016; Effective January 1, 2016) This Annual Incentive Performance Program (this ?AIP Program?) sets forth the terms and conditions under which designated employees of Lydall, Inc. and its subsidiaries (collectively, ?Lydall? or the ?Company?) may receive cash incentive payments based on the annual financial perf

Lydall DEF 14A

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

POWER OF ATTORNEY

EX-24.1 8 ldl-201512x31exhibit241.htm EXHIBIT 24.1 Exhibit 24.1 POWER OF ATTORNEY KNOW ALL MEN BY THESE PRESENTS, that each of the undersigned directors and officers of Lydall, Inc. (the “Corporation”), does hereby constitute and appoint Dale G. Barnhart and Scott M. Deakin, and each of them singly, as his agent and attorney-in-fact to do any and all things and acts in his/her name and in the capa

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Form 10-K ý ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Fiscal Year Ended December 31, 2015 o TRANSITION REPORT PURSUANT TO SECTI

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, 2015 OR o 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: 1-7665 Lydall, Inc. (Exact name of

Amendment No. 1 to the Agreement, dated February 24, 2016, between the Company and Joseph A. Abbruzzi, amending that certain Employment Agreement dated March 31, 2014, filed as Exhibit 10.32 to the Registrant's Annual Report on Form 10-K dated February 24, 2016 and incorporated herein by reference.

AMENDMENT NO. 1 TO THE AGREEMENT THIS AMENDMENT NO. 1 TO THE AGREEMENT is entered into as of the 24th day of February, 2016, by Lydall, Inc., a Delaware corporation (the "Company"), and JOSEPH A. ABBRUZZI (the "Employee"). W I T N E S S E T H WHEREAS, the Company and the Employee entered into that certain Agreement dated March 31, 2014 (the "Agreement?), and now desire to amend the Agreement, as s

LYDALL ANNOUNCES FINANCIAL RESULTS FOR THE FOURTH QUARTER AND YEAR ENDED DECEMBER 31, 2015 ● Q4 2015 adjusted EPS of $0.46, up 39% from adjusted Q4 2014 EPS ● 2015 adjusted EPS of $2.10, a company record, up 21% from 2014 adjusted EPS ● Organic sales

Exhibit Lydall, Inc Telephone 860-646-1233 One Colonial Road Facsimile 860-464-4917 Manchester, CT 06042-2378 www.

Amendment No. 1 to the Agreement, dated February 24, 2016, between the Company and Chad A. McDaniel, amending that certain Employment Agreement dated May 8, 2013, filed as Exhibit 10.31 to the Registrant's Annual Report on Form 10-K dated February 24, 2016 and incorporated herein by reference.

AMENDMENT NO. 1 TO THE AGREEMENT THIS AMENDMENT NO. 1 TO THE AGREEMENT is entered into as of the 24th day of February, 2016, by Lydall, Inc., a Delaware corporation (the "Company"), and CHAD A. McDANIEL (the "Employee"). W I T N E S S E T H WHEREAS, the Company and the Employee entered into that certain Agreement dated May 8, 2013 (the "Agreement?), and now desire to amend the Agreement, as set fo

Amendment No. 1 to the Agreement, dated February 24, 2016, between the Company and James V. Laughlan, amending that certain Employment Agreement dated August 3, 2015, filed as Exhibit 10.33 to the Registrant's Annual Report on Form 10-K dated February 24, 2016 and incorporated herein by reference.

AMENDMENT NO. 1 TO THE AGREEMENT THIS AMENDMENT NO. 1 TO THE AGREEMENT is entered into as of the 24th day of February, 2016, by Lydall, Inc., a Delaware corporation (the "Company"), and JAMES V. LAUGHLAN (the "Employee"). W I T N E S S E T H WHEREAS, the Company and the Employee entered into that certain Agreement dated August 3, 2015 (the "Agreement”), and now desire to amend the Agreement, as se

Amendment No. 1 to the Agreement, dated February 24, 2016, between the Company and Scott M. Deakin, amending that certain Employment Agreement dated August 21, 2015, filed as Exhibit 10.34 to the Registrant's Annual Report on Form 10-K dated February 24, 2016 and incorporated herein by reference.

AMENDMENT NO. 1 TO THE AGREEMENT THIS AMENDMENT NO. 1 TO THE AGREEMENT is entered into as of the 24th day of February, 2016, by Lydall, Inc., a Delaware corporation (the "Company"), and SCOTT M. DEAKIN (the "Employee"). W I T N E S S E T H WHEREAS, the Company and the Employee entered into that certain Agreement dated August 21, 2015 (the "Agreement?), and now desire to amend the Agreement, as set