GLT / Glatfelter Corporation - Pengajuan SECLaporan Tahunan, Pernyataan Proksi

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

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 5, 2025 Magnera Corporation (Exact name of registrant as specified in its charter) Pennsylvania 001-03560 23-0628360 (State or other jurisdiction of incorporation) (Commission

June Quarter

Exhibit 99.1 Magnera Reports Third Quarter Results – Provides Updated Outlook Third Quarter Highlights ● GAAP: Net sales of $839 million, Operating income of $13 million ● Non-GAAP: Adjusted EBITDA of $91 million ● Confirming post-merger adjusted free cash flow and Adjusted EBITDA range Magnera (NYSE: MAGN), a global leader in specialty materials for the consumer products and personal care markets

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

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q ☒ Quarterly Report pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the quarterly period ended June 28, 2025 or ☐ Transition Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the transition period from to 9335 Harris Corners Pkwy, Suite 300 Charlotte, North Ca

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

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 6, 2025 Magnera Corporation (Exact name of registrant as specified in its charter) Pennsylvania 001-03560 23-0628360 (State or other jurisdiction of incorporation) (Commission

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

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 11-K ☒ Annual report pursuant to Section 15(d) of the Securities Exchange Act of 1934 For the fiscal year ended December 31, 2024 or ☐ Transition Report Pursuant to Section 15(d) of the Securities Exchange Act of 1934 For the transition period from to Commission file number 1-3560 A.Full title of the plan and the address

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

SD 1 magn-formsd52925.htm SD UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM SD Specialized Disclosure Report MAGNERA CORPORATION (Exact name of the registrant as specified in its charter) Pennsylvania 001-03560 20-0628360 (State or other Jurisdiction of Incorporation or Organization) (Commission File Number) (IRS Employer Identification No.) 9335 Harris Corners Pkwy,

Page | 1 Magnera Reports Second Quarter Results – Provides Updated Outlook. Second Quarter Highlights  GAAP: Net sales of $824 million, Operating income of $4 million  Non-GAAP: Adjusted EBITDA of $89 million, Post-merger adjusted free cash flow $4

Page | 1 Magnera Reports Second Quarter Results – Provides Updated Outlook. Second Quarter Highlights  GAAP: Net sales of $824 million, Operating income of $4 million  Non-GAAP: Adjusted EBITDA of $89 million, Post-merger adjusted free cash flow $42 million  Reaffirming post-merger adjusted free cash flow range & lowering full year comparable Adjusted EBITDA range Magnera (NYSE: MAGN), a global

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 7, 2025 Magnera Corporation (Exact name of registrant as specified in its charter) Pennsylvania 001-03560 23-0628360 (State or other jurisdiction of incorporation) (Commission Fil

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

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q ☒ Quarterly Report pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the quarterly period ended March 29, 2025 or ☐ Transition Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the transition period from to 9335 Harris Corners Pkwy, Suite 300 Charlotte, North C

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

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 6, 2025 Magnera Corporation (Exact name of registrant as specified in its charter) Pennsylvania 001-03560 23-0628360 (State or other jurisdiction of incorporation) (Commissio

Page | 1 Magnera reports first fiscal quarter results. Provides outlook for fiscal 2025 First Quarter Highlights  Completed the merger of Berry Global’s nonwovens and hygiene films business with Glatfelter Corporation on November 4, 2024  GAAP: Net

dec2024-earningsreleasex Page | 1 Magnera reports first fiscal quarter results. Provides outlook for fiscal 2025 First Quarter Highlights  Completed the merger of Berry Global’s nonwovens and hygiene films business with Glatfelter Corporation on November 4, 2024  GAAP: Net sales of $702 million, Operating Loss of $22 million  Non-GAAP: Adjusted EBITDA of $84 million Fiscal Year 2025 Outlook  F

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

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q ☒ Quarterly Report pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the quarterly period ended December 28, 2024 or ☐ Transition Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the transition period from to 9335 Harris Corners Pkwy, Suite 300 Charlotte, Nort

EXHIBIT 99.3 Item 7. MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS The Combined Financial Statements represent the operations of Spinco and have been prepared on a carve-out basis which includes assumptions und

EXHIBIT 99.3 Item 7. MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS The Combined Financial Statements represent the operations of Spinco and have been prepared on a carve-out basis which includes assumptions underlying the preparation that management believes are reasonable. However, the Combined Financial Statements included herein may not necessarily reflec

EXHIBIT 99.4 Item 8. FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA Report of Independent Registered Public Accounting Firm To the Management and the Board of Directors of Berry Global Group, Inc. Opinion on the Financial Statements We have audited the

EXHIBIT 99.4 Item 8. FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA Report of Independent Registered Public Accounting Firm To the Management and the Board of Directors of Berry Global Group, Inc. Opinion on the Financial Statements We have audited the accompanying combined balance sheets of Spinco (the Company) as of September 28, 2024 and September 30, 2023, the related combined statements of opera

EXHIBIT 99.2 Item 1A. RISK FACTORS Operational Risks Global economic conditions, including inflation and supply chain disruptions, may negatively impact our business operations and financial results. Challenging current and future global economic con

EXHIBIT 99.2 Item 1A. RISK FACTORS Operational Risks Global economic conditions, including inflation and supply chain disruptions, may negatively impact our business operations and financial results. Challenging current and future global economic conditions, including inflation and supply chain disruptions may negatively impact our business operations and financial results. Recent regional and glo

Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K/A (Amendment No. 2) CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of Earliest Event Reported): 11/4/2024 Magnera Corporation (Exact name of registrant as specified in its charter) Pennsylvania 001-03560 23-0628360 (State or other jurisdiction of incorporatio

Employment Agreement, dated as of December 20, 2024, by and between Magnera Corporation and Curtis L. Begle

Exhibit 10.1 EMPLOYMENT AGREEMENT (this “Agreement”) dated December 16, 2024, by and among Magnera Corporation (formerly known as Glatfelter Corporation), a Pennsylvania corporation (the “Company” or “Employer”), and Curtis L. Begle (the “Executive”). WHEREAS, the Company has entered into that certain RMT Transaction Agreement, and its corresponding Separation and Distribution Agreement, its Emplo

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 16, 2024

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 16, 2024 Magnera Corporation (Exact name of registrant as specified in its charter) Pennsylvania 001-03560 23-0628360 (State or other jurisdiction of incorporation) (Commissi

Form of Performance Share Award Agreement

Exhibit 10.3 PSU Award Agreement – FY2025 - ELT Form Magnera Corporation 2024 Omnibus Incentive Plan Performance Stock Award Agreement Award Number:  [•] Award Date: December 16, 2024 Award Type: Performance Stock Unit Award Cycle: November 4, 2024-October 2, 2027 Number of Performance Stock Units Granted at Target:  [•] (the “Target PSUs”) Date Fully Vested:  October 2, 2027 Method of Payment: To

Magnera Corporation Executive Severance Plan

Exhibit 10.2 MAGNERA CORPORATION EXECUTIVE SEVERANCE PLAN Effective December 16, 2024 1.            Establishment; Purpose. (a)          Establishment. Magnera Corporation, Pennsylvania corporation (f/k/a Glatfelter Corporation) (the “Company”) hereby establishes this Magnera Corporation Executive Severance Plan (the “Plan”), effective December 16, 2024 (the “Effective Date”). The Plan shall apply

JOINT FILING AGREEMENT

EX-99.1 2 ex991to13d09488magn11212024.htm JOINT FILING AGREEMENT Exhibit 99.1 JOINT FILING AGREEMENT In accordance with Rule 13d-1(k)(1)(iii) under the Securities Exchange Act of 1934, as amended, the persons named below agree to the joint filing on behalf of each of them of a Statement on Schedule 13D (including amendments thereto) with respect to the Common Stock, $0.01 par value per share, of M

MAGN / Magnera Corporation / ENGINE CAPITAL, L.P. - THE SCHEDULE 13D Activist Investment

SC 13D 1 sc13d09488magn11212024.htm THE SCHEDULE 13D UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D (Rule 13d-101) INFORMATION TO BE INCLUDED IN STATEMENTS FILED PURSUANT TO § 240.13d-1(a) AND AMENDMENTS THERETO FILED PURSUANT TO § 240.13d-2(a) (Amendment No. )1 Magnera Corporation (Name of Issuer) Common Stock, $0.01 par value per share (Title of Class of Sec

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/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): November 4, 2024 Magnera Corporation (Exact name of registrant as specified in its charter) Pennsylvania 001-03560 23-0628360 (State or other jurisdiction of incor

MAGN / Magnera Corporation / Madison Avenue Partners, LP Passive Investment

SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 13G (RULE 13d - 102) INFORMATION TO BE INCLUDED IN STATEMENTS FILED PURSUANT TO 13d-1(b), (c) AND (d) AND AMENDMENTS THERETO FILED PURSUANT TO 13d-2(b) (Amendment No. )* Magnera Corporation (Name of Issuer) Common Stock, $0.01 par value per share (Title of Class of Securities) 55939A107 (CUSIP Number) November 7, 2024 (Date of Even

US377320AA45 / Glatfelter Corp - 4.75% 2029-11-15 / CARLSON CAPITAL L P - SC 13D/A Activist Investment

SC 13D/A 1 d824794dsc13da.htm SC 13D/A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 (Amendment No. 6)* Magnera Corporation (Name of Issuer) Common Stock, $0.01 par value per share (Title of Class of Securities) 55939A107 (CUSIP Number) Carlson Capital, L.P. Attn: Rahim Ibrahim 2100 McKinney Avenue, Suite 1900 Dallas

Glatfelter Deferred Compensation Plan Amendment

Exhibit 10.15 FIRST AMENDMENT TO THE GLATFELTER DEFERRED COMPENSATION PLAN (Effective as of January 1, 2020) THIS FIRST AMENDMENT (this “Amendment”) to the Glatfelter Deferred Compensation Plan (the “Plan”) is made by the board of directors (the “Board”) of Glatfelter Corporation, a Pennsylvania corporation (the “Company”), effective as of November 4, 2024 (the “Effective Date”). RECITALS WHEREAS,

Letter from Deloitte & Touche LLP dated November 4, 2024

Exhibit 16.1 November 4, 2024 Securities and Exchange Commission 100 F Street, N.E. Washington, D.C. 20549-7561 Dear Sirs/Madams: We have read Item 4.01 of Magnera Corporation's (formerly Glatfelter Corporation) Form 8-K dated November 4, 2024, and have the following comments: 1. We agree with the statements made in paragraphs three through six. 2. We have no basis on which to agree or disagree wi

Form of Restricted Stock Unit Award Agreement

Exhibit 10.6 RSU Award Agreement - FY2025 Form Magnera Corporation 2024 Omnibus Incentive Plan Restricted Stock Unit Award Agreement Award Number: [•] Award Date:     [•], 2024 Award Type: Restricted Stock Unit Number of Restricted Stock Units: [•] Vesting Schedule: Vesting Date RSUs Vesting [•] [•] [•] [•] [•] [•] Method of Payment: To the extent vested and earned, and unless otherwise set forth

Form of Restricted Stock Unit Award Agreement (Berry Option conversion)

Exhibit 10.11 RSU Award Agreement – FY2025 Form (Berry Option Cancellation) Magnera Corporation 2024 Omnibus Incentive Plan Restricted Stock Unit Award Agreement    Award Number: [•] Award Date:     [•], 2024 Award Type: Restricted Stock Unit Number of Restricted Stock Units: [•] Vesting Schedule: Vesting Date RSUs Vesting [•] [•] [•] [•] [•] [•] [•] [•] Method of Payment: To the extent vested and

Form of Restricted Stock Unit Award Agreement (Berry RSU conversion)

Exhibit 10.10 RSU Award Agreement – FY2025 Form (Berry RSU Cancellation) Magnera Corporation 2024 Omnibus Incentive Plan Restricted Stock Unit Award Agreement Award Number: [•] Award Date:     [•], 2024 Award Type: Restricted Stock Unit Number of Restricted Stock Units: [•] Vesting Schedule: Vesting Date RSUs Vesting [•] [•] [•] [•] [•] [•] [•] [•] Method of Payment: To the extent vested and earne

Amended and Restated Bylaws of Magnera Corporation

Exhibit 3.2 MAGNERA CORPORATION (a Pennsylvania corporation) AMENDED AND RESTATED BYLAWS (Amended and Restated as of November 4, 2024) TABLE OF CONTENTS Page ARTICLE I MEETINGS OF SHAREHOLDERS AND RECORD DATE 1 1.1 ANNUAL MEETING 1 1.2 SPECIAL MEETINGS 1 1.3 PLACE OF SHAREHOLDERS’ MEETINGS 1 1.4 NOTICE 2 1.5 QUORUM 2 1.6 VOTING 2 1.7 RECORD DATES 2 1.8 CONSIDERATION OF DIRECTOR NOMINATIONS AND BUS

Form of Restricted Stock Unit Award Agreement (Berry DER conversion)

Exhibit 10.12 RSU Award Agreement – FY2025 Form (Berry DER Cancellation) Magnera Corporation 2024 Omnibus Incentive Plan Restricted Stock Unit Award Agreement Award Number: [•] Award Date:     [•], 2024 Award Type: Restricted Stock Unit Number of Restricted Stock Units: [•] Vesting Schedule: Vesting Date RSUs Vesting [•] [•] [•] [•] [•] [•] [•] [•] Method of Payment: To the extent vested and earne

Indenture, by and between Treasure Escrow Corporation and U.S. Bank Trust Company, National Association, as Trustee and Collateral Agent, relating to the 7.250% Senior Secured Notes due 2031, dated October 25, 2024

Exhibit 4.1 Execution Version TREASURE ESCROW CORPORATION (to be assumed by Magnera Corporation), as Issuer, 7.250% Senior Secured Notes due 2031 INDENTURE Dated as of October 25, 2024 U.S. BANK TRUST COMPANY, NATIONAL ASSOCIATION, as Trustee and Collateral Agent TABLE OF CONTENTS Page ARTICLE 1 DEFINITIONS AND INCORPORATION BY REFERENCE SECTION 1.01. Definitions 1 SECTION 1.02. Other Definitions

First Supplemental Indenture, by and among Treasure Escrow Corporation, Treasure Merger Sub II, LLC and U.S. Bank Trust Company, National Association, as Trustee and Collateral Agent, relating to the 7.250% Senior Secured Notes due 2031, dated November 4, 2024

Exhibit 4.2 SUPPLEMENTAL INDENTURE NO. 1 (this “Supplemental Indenture”) dated as of November 4, 2024, among Treasure Escrow Corporation, a Delaware corporation (the “Escrow Issuer”) and Treasure Merger Sub II, LLC, a Delaware limited liability company (“Merger Sub II”) and U.S. Bank Trust Company, National Association, a national banking association, as trustee under the indenture referred to bel

Term Loan Credit Agreement, dated November 4, 2024, by and among Treasure Holdco, Inc., the lenders party thereto and Citibank, N.A. as administrative agent and collateral agent for the lenders*

Exhibit 10.2 Execution Version TERM LOAN CREDIT AGREEMENT Dated as of November 4, 2024, among TREASURE HOLDCO, INC., as the Initial Borrower, and, after giving effect to the Closing Date Assignment, GLATFELTER CORPORATION, as Borrower, THE LENDERS PARTY HERETO, citibank, n.a., as Collateral Agent and Administrative Agent, citibank, n.a. WELLS FARGO SECURITIES, LLC BARCLAYS BANK PLC HSBC SECURITIES

P. H. Glatfelter Company Supplemental Executive Retirement Plan Amendment

Exhibit 10.14 FIRST AMENDMENT TO THE P.H. GLATFELTER COMPANY SUPPLEMENTAL EXECUTIVE RETIREMENT PLAN (Amended and Restated Effective June 1, 2019) THIS FIRST AMENDMENT (this “Amendment”) to the P.H. Glatfelter Company Supplemental Executive Retirement Plan (the “Plan”) is made by Glatfelter Corporation (f/k/a P.H. Glatfelter Company), a Pennsylvania corporation (the “Company”), effective as of Nove

Transition Services Agreement, dated as of November 4, 2024, by and between Berry Global, Inc., and Treasure Merger Sub II, LLC

Exhibit 10.1 Execution Version TRANSITION SERVICES AGREEMENT This TRANSITION SERVICES AGREEMENT (as it may be amended or supplemented from time to time in accordance with the terms hereof, this “Agreement”) is dated as of November 4, 2024, and is by and between BERRY GLOBAL, INC., a Delaware corporation (“BGI”), and TREASURE MERGER SUB II, LLC, a Delaware limited liability company (the “Surviving

November 4, 2024

Exhibit 99.1 November 4, 2024 9335 Harris Corners Pkwy, Suite 300 Charlotte, NC 28269 [email protected] For Immediate Release Magnera Emerges as a New Global Leader in the Specialty Materials and Nonwovens Industry, Following the Merger of Berry’s Health, Hygiene and Specialties Global Nonwovens and Films Business with Glatfelter Nov. 4, 2024 Charlotte, NC, USA – Glatfelter Corporation (NYSE: GLT)

Magnera Corporation Deferred Compensation Plan

Exhibit 10.13 Magnera Corporation Deferred Compensation Plan Effective Date January 1, 2025 Content Copyright ©2022 Newport Group, Inc. All Rights Reserved. Magnera Corporation Deferred Compensation Plan Page Article I Establishment and Purpose 1 Article II Definitions 1 2.1 Account 1 2.2 Account Balance 1 2.3 Affiliate 1 2.4 Beneficiary 1 2.5 Board of Directors 2 2.6 Business Day 2 2.7 Change in

Magnera Corporation 2024 Omnibus Incentive Plan

Exhibit 10.5 MAGNERA CORPORATION 2024 OMNIBUS INCENTIVE PLAN ARTICLE I. PURPOSE 1.1            Purpose. This Magnera Corporation 2024 Omnibus Incentive Plan (the “Plan”) has been established by Glatfelter Corporation, a Pennsylvania corporation, to be renamed Magnera Corporation f/k/a Glatfelter Corporation (the “Company”) to: (a) reward Eligible Individuals by means of appropriate incentives for

Consulting Agreement, effective November 4, 2024, by and between Magnera Corporation and David C. Elder**

Exhibit 10.4 November 4, 2024 David C. Elder [Address Redacted] Re: New Role Going Forward Dear David: At the outset, we thank you for your years of service to Glatfelter Corporation ("Glatfelter''). As we have discussed, the purpose of this letter agreement (this "Agreement") is to set out our mutual agreement regarding the terms and conditions of your go forward consulting role following the suc

Form of Indemnification Agreement for Officers and Directors

Exhibit 10.16   Execution Version   INDEMNIFICATION AGREEMENT   This Agreement (as defined below), dated as of [●], 2024 is by and between Magnera Corporation, a Pennsylvania corporation (the “Company”), and [●], an individual (the “Indemnitee”).   WHEREAS, the Indemnitee is currently serving in one or more capacities as a director or officer of the Company or, at the request of, for the convenien

Form of Special Restricted Stock Unit Award Agreement

Exhibit 10.8 RSU Award Agreement – FY2025 Form (Special Award) Magnera Corporation 2024 Omnibus Incentive Plan Restricted Stock Unit Award Agreement Award Number: [•] Award Date:     [•], 2024 Award Type: Restricted Stock Unit Number of Restricted Stock Units: [•] Vesting Schedule: All RSUs subject to this Award will vest on [•] (the “Vesting Date”) Method of Payment: To the extent vested and earn

Third Supplemental Indenture, by and among Magnera Corporation, each of the parties identified as a Subsidiary Guarantor thereon and Wilmington Trust, National Association, as trustee, relating to the 4.750% Senior Notes due 2029, dated November 4, 2024

Exhibit 4.4 Execution Version THIRD SUPPLEMENTAL INDENTURE THIRD SUPPLEMENTAL INDENTURE (this “Supplemental Indenture”), dated as of November 4, 2024, among MAGNERA CORPORATION (formerly known as Glatfelter Corporation), a Pennsylvania corporation (“Magnera”), each of the Subsidiaries set forth on the signature pages hereto as a “Guaranteeing Subsidiary” (each, a “Guaranteeing Subsidiary” and, col

Form of Performance Share Award Agreement

Exhibit 10.7 PSU Award Agreement – FY2025 Form Magnera Corporation 2024 Omnibus Incentive Plan Performance Stock Award Agreement    Award Number: [•] Award Date: [•], 2024 Award Type: Performance Stock Unit Award Cycle: [•] Number of Performance Stock Units Granted at Target: [•] (the “Target PSUs”) Date Fully Vested: [•] Method of Payment: To the extent vested and earned, and unless otherwise set

Amendment to the Amended and Restated Articles of Incorporation of Glatfelter Corporation

Exhibit 3.1 ARTICLES OF AMENDMENT TO THE AMENDED AND RESTATED ARTICLES OF INCORPORATION OF GLATFELTER CORPORATION Article I of the Amended and Restated Articles of Incorporation is hereby amended and restated in its entirety as follows: “ARTICLE I The name of the corporation is MAGNERA CORPORATION” Section 1 of Article V of the Amended and Restated Articles of Incorporation is hereby amended and r

Form of Director Restricted Stock Unit Award Agreement

Exhibit 10.9 RSU Award Agreement – FY2025 Form (Director) Magnera Corporation 2024 Omnibus Incentive Plan Restricted Stock Unit Award Agreement Award Number: [•] Award Date:     [•], 2024 Award Type: Restricted Stock Unit Number of Restricted Stock Units: [•] Vesting Schedule: Vesting Date RSUs Vesting [•] [•] Method of Payment: This Restricted Stock Unit Award was earned on the Award Date set for

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 4, 2024

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 4, 2024 Magnera Corporation (Exact name of registrant as specified in its charter) Pennsylvania 001-03560 23-0628360 (State or other jurisdiction of incorporation) (Commissio

Asset-Based Revolving Credit Agreement, dated November 4, 2024, by and among Treasure Holdco, Inc., Magnera Corporation, certain subsidiaries of Magnera, the lenders party thereto and Wells Fargo Bank, National Association as administrative agent, collateral agent and U.K. security trustee for the lenders*

Exhibit 10.3 Execution Version $350,000,000 ASSET-BASED REVOLVING CREDIT AGREEMENT Dated as of November 4, 2024, among TREASURE HOLDCO, INC., as the Initial Borrower, and, after giving effect to the Closing Date Assignment, GLATFELTER CORPORATION, as U.S. Borrower, GLATFELTER GATINEAU LTÉE, as Canadian Borrower, GLATFELTER LYDNEY, LTD., GLATFELTER CAERPHILLY LIMITED, and FIBERWEB GEOSYNTHETICS LIM

Second Supplemental Indenture, by and among Magnera Corporation, each of the parties identified as a Subsidiary Guarantor thereon, Treasure Merger Sub II, LLC and U.S. Bank Trust Company, National Association, as Trustee and Collateral Agent, relating to the 7.250% Senior Secured Notes due 2031, dated November 4, 2024

Exhibit 4.3 SUPPLEMENTAL INDENTURE NO. 2 (this “Supplemental Indenture”) dated as of November 4, 2024, among Treasure Merger Sub II, LLC, a Delaware limited liability company (“Merger Sub II”), Glatfelter Corporation, a Pennsylvania corporation, which will be renamed Magnera Corporation (the “Company”), certain domestic subsidiaries of the Company (the “Subsidiary Guarantors”) and U.S. Bank Trust

Certificate of Amendment to the Certificate of Incorporation of Treasure Holdco, Inc., effective October 29, 2024.

Exhibit 3.1 Delaware Page 1 The First State I, JEFFREY W. BULLOCK, SECRETARY OF STATE OF THE STATE OF DELAWARE, DO HEREBY CERTIFY THE ATTACHED IS A TRUE AND CORRECT COPY OF THE CERTIFICATE OF AMENDMENT OF “TREASURE HOLDCO, INC.”, FILED IN THIS OFFICE ON THE TWENTY-NINTH DAY OF OCTOBER, A.D. 2024, AT 2:01 O’CLOCK P.M. /s/ Jeffrey W. Bullock Jeffrey W. Bullock, Secretary of State 2911817 8100 SR# 20

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, 2024 TREASURE HOLDCO,

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, 2024 TREASURE HOLDCO, INC. (Exact name of registrant as specified in charter) Delaware 000-56679 99-0807091 (State of incorporation) (Commission File No.) (IRS Employer Id

As filed with the Securities and Exchange Commission on November 4, 2024

As filed with the Securities and Exchange Commission on November 4, 2024 Registration No.

Filing Fee Table

Exhibit 107.1 CALCULATION OF FILING FEE TABLE FORM S-8 (Form Type) Magnera Corporation (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered Securities Security Type Security Class Title(1) Fee Calculation Rule(2) Amount Registered(1) Proposed Maximum Offering Price Per Share Maximum Aggregate Offering Price Fee Rate Amount of Registration Fee Equity Common Stock, par va

As filed with the Securities and Exchange Commission on November 4, 2024

As filed with the Securities and Exchange Commission on November 4, 2024 Registration No.

As filed with the Securities and Exchange Commission on November 4, 2024

As filed with the Securities and Exchange Commission on November 4, 2024 Registration No.

GLATFELTER REPORTS THIRD QUARTER 2024 RESULTS ~ Transaction closing and transition to Magnera scheduled for November 4th ~

Exhibit 99.1 N E W S R E L E A S E Corporate Headquarters 4350 Congress Street Suite 600 Charlotte, NC 28209 U.S.A. www.glatfelter.com For Immediate Release Contacts: Investors: Media: Ramesh Shettigar Eileen L. Beck (717) 225-2746 (717) 225-2793 [email protected] [email protected] GLATFELTER REPORTS THIRD QUARTER 2024 RESULTS ~ Transaction closing and transition to Magnera

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

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q ☒ Quarterly Report pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the quarterly period ended September 30, 2024 or ☐ Transition Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the transition period from to 4350 Congress Street, Suite 600 Charlotte, North C

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 30, 2024 Glatfelter Corporation (Exact name of registrant as specified in its charter) Pennsylvania 001-03560 23-0628360 (State or other jurisdiction of incorporation) (Commis

Glatfelter Shareholders Approve Proposals Related to the Proposed Merger of Berry’s Health, Hygiene and Specialties Global Nonwovens and Films Business with Glatfelter Glatfelter Announces Reverse Stock Split Ratio and Anticipated Effective Date

Exhibit 99.1 News Release FOR IMMEDIATE RELEASE Glatfelter Shareholders Approve Proposals Related to the Proposed Merger of Berry’s Health, Hygiene and Specialties Global Nonwovens and Films Business with Glatfelter Glatfelter Announces Reverse Stock Split Ratio and Anticipated Effective Date CHARLOTTE, NC & EVANSVILLE, IN — October 23, 2024 — Glatfelter Corporation (NYSE: GLT) (“Glatfelter”) and

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): October 23, 2024 Glatfelter Corporation (Exact name of registrant as specified in its charter) Pennsylvania 001-03560 23-0628360 (State or other jurisdiction of incorporation) (Commis

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 23, 2024

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 23, 2024 Glatfelter Corporation (Exact name of registrant as specified in its charter) Pennsylvania 001-03560 23-0628360 (State or other jurisdiction of incorporation) (Commis

Glatfelter Shareholders Approve Proposals Related to the Proposed Merger of Berry’s Health, Hygiene and Specialties Global Nonwovens and Films Business with Glatfelter Glatfelter Announces Reverse Stock Split Ratio and Anticipated Effective Date

Filed by: Berry Global Group, Inc. Commission File No.: 001-35672 Pursuant to Rule 425 under the Securities Act of 1933 Subject Company: Glatfelter Corporation (Commission File No.: 001-03560) Below is a press release issued jointly by Berry Global Group, Inc. and Glatfelter Corporation on October 23, 2024: News Release FOR IMMEDIATE RELEASE Glatfelter Shareholders Approve Proposals Related to the

Berry and Glatfelter Announce Information for Anticipated Completion of Spin-Off and Subsequent Merger of Berry’s Health, Hygiene and Specialties Global Nonwovens and Films Business with Glatfelter

Filed by: Berry Global Group, Inc. Commission File No.: 001-35672 Pursuant to Rule 425 under the Securities Act of 1933 Subject Company: Glatfelter Corporation (Commission File No.: 001-03560) Below is a press release issued jointly by Berry Global Group, Inc. and Glatfelter Corporation on October 22, 2024: News Release FOR IMMEDIATE RELEASE Berry and Glatfelter Announce Information for Anticipate

Glatfelter Shareholders Approve Proposals Related to the Proposed Merger of Berry’s Health, Hygiene and Specialties Global Nonwovens and Films Business with Glatfelter Glatfelter Announces Reverse Stock Split Ratio and Anticipated Effective Date

Exhibit 99.1 News Release FOR IMMEDIATE RELEASE Glatfelter Shareholders Approve Proposals Related to the Proposed Merger of Berry’s Health, Hygiene and Specialties Global Nonwovens and Films Business with Glatfelter Glatfelter Announces Reverse Stock Split Ratio and Anticipated Effective Date CHARLOTTE, NC & EVANSVILLE, IN — October 23, 2024 — Glatfelter Corporation (NYSE: GLT) (“Glatfelter”) and

Amendment to Tax Matters Agreement, dated October 21, 2024

Exhibit 10.1 FIRST AMENDMENT TO TAX MATTERS AGREEMENT This FIRST Amendment TO TAX MATTERS AGREEMENT (this “Amendment”) is made on this 21st day of October, 2024, by and among BERRY GLOBAL GROUP, INC., a Delaware corporation (“Remainco”), TREASURE HOLDCO, INC., a Delaware corporation and a wholly owned indirect Subsidiary of Remainco (“Spinco”), and GLATFELTER CORPORATION, a Pennsylvania corporatio

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): October 21, 2024 Glatfelter Corporation (Exact name of registrant as specified in its charter) Pennsylvania 001-03560 23-0628360 (State or other jurisdiction of incorporation) (Commis

Amendment to Tax Matters Agreement, dated October 21, 2024

Exhibit 10.1 FIRST AMENDMENT TO TAX MATTERS AGREEMENT This FIRST Amendment TO TAX MATTERS AGREEMENT (this “Amendment”) is made on this 21st day of October, 2024, by and among BERRY GLOBAL GROUP, INC., a Delaware corporation (“Remainco”), TREASURE HOLDCO, INC., a Delaware corporation and a wholly owned indirect Subsidiary of Remainco (“Spinco”), and GLATFELTER CORPORATION, a Pennsylvania corporatio

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 21, 2024

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 21, 2024 Glatfelter Corporation (Exact name of registrant as specified in its charter) Pennsylvania 001-03560 23-0628360 (State or other jurisdiction of incorporation) (Commis

Frequently Asked Questions - GLT

Filed by: Berry Global Group, Inc. Commission File No.: 001-35672 Pursuant to Rule 425 under the Securities Act of 1933 Subject Company: Glatfelter Corporation (Commission File No.: 001-03560) Given below are communications made by Glatfelter Corporation and Berry Global Group, Inc. on October 15, 2024 Frequently Asked Questions - GLT Company culture and values Q: What is our new purpose, promise

Berry and Glatfelter Announce Pricing of Upsized Senior Secured Notes Offering by Berry Subsidiary in Connection with Proposed Merger of Berry’s Health, Hygiene and Specialties Global Nonwovens and Films Business with Glatfelter

Exhibit 99.1 News Release FOR IMMEDIATE RELEASE Berry and Glatfelter Announce Pricing of Upsized Senior Secured Notes Offering by Berry Subsidiary in Connection with Proposed Merger of Berry’s Health, Hygiene and Specialties Global Nonwovens and Films Business with Glatfelter Notes to be Assumed by Magnera at Closing of the Transaction EVANSVILLE, IN & CHARLOTTE, NC — (BUSINESS WIRE) — October 10,

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 10, 2024 BERRY GLOBAL GRO

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 10, 2024 BERRY GLOBAL GROUP, INC. (Exact name of registrant as specified in charter) Delaware 1-35672 20-5234618 (State of incorporation) (Commission File Number) (IRS Employe

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, 2024

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, 2024 Glatfelter Corporation (Exact name of registrant as specified in its charter) Pennsylvania 001-03560 23-0628360 (State or other jurisdiction of incorporation) (Commis

Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of Earliest Event Reported): October 11, 2024 Glatfelter Corporation (Exact name of registrant as specified in its charter) Pennsylvania 001-03560 23-0628360 (State or other jurisdiction of incorporation) (Commis

Our Company

Exhibit 99.2 SUMMARY The following summary contains selected information about the Issuer, the offering, and the Transactions and highlights information contained elsewhere in this offering memorandum. This summary is qualified in its entirety by the more detailed information and consolidated financial statements included elsewhere in this offering memorandum. This summary is not complete and may

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 7, 2024 BERRY GLOBAL GROU

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 7, 2024 BERRY GLOBAL GROUP, INC. (Exact name of registrant as specified in charter) Delaware 1-35672 20-5234618 (State of incorporation) (Commission File Number) (IRS Employer

Berry and Glatfelter Announce Proposed Offering by a Berry Subsidiary of Senior Secured Notes in Connection with the Proposed Merger of Berry’s Health, Hygiene and Specialties Global Nonwovens and Films Business with Glatfelter

Exhibit 99.1 News Release FOR IMMEDIATE RELEASE Berry and Glatfelter Announce Proposed Offering by a Berry Subsidiary of Senior Secured Notes in Connection with the Proposed Merger of Berry’s Health, Hygiene and Specialties Global Nonwovens and Films Business with Glatfelter Notes to be Assumed by Magnera at Closing EVANSVILLE, IN & CHARLOTTE, NC — (BUSINESS WIRE) — October 7, 2024 — Berry Global

GLT / Glatfelter Corporation / CARLSON CAPITAL L P - SC 13D/A Activist Investment

SC 13D/A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 (Amendment No. 5)* Glatfelter Corporation (Name of Issuer) Common Stock, $0.01 par value per share (Title of Class of Securities) 377316104 (CUSIP Number) Carlson Capital, L.P. Attn: Rahim Ibrahim 2100 McKinney Avenue, Suite 1900 Dallas TX 75201 (214) 932-9600 (Na

Filed by: Berry Global Group, Inc.

Filed by: Berry Global Group, Inc. Commission File No.: 001-35672 Pursuant to Rule 425 under the Securities Act of 1933 Subject Company: Glatfelter Corporation (Commission File No.: 001-03560) Below is a communication made by Berry Global Group, Inc. on September 26, 2024. THE INFORMATION CONTAINED IN THE LENDER PRESENTATION BELOW HAS BEEN MADE AVAILABLE TO POTENTIAL LENDERS IN CONNECTION WITH THE

Special Meeting of the Glatfelter Shareholders Scheduled for October 23, 2024 Proxy Statement/Prospectus to be Mailed to the Glatfelter Shareholders Beginning on or about September 20, 2024 Special Meeting of the Glatfelter Shareholders Scheduled for

Filed by: Berry Global Group, Inc. Commission File No.: 001-35672 Pursuant to Rule 425 under the Securities Act of 1933 Subject Company: Glatfelter Corporation (Commission File No.: 001-03560) Below is a press release issued jointly by Berry Global Group, Inc. and Glatfelter Corporation on September 20, 2024: Berry Global and Glatfelter Announce Date of the Glatfelter Shareholder Meeting in Connec

PROXY STATEMENT/PROSPECTUS TO GLATFELTER SHAREHOLDERS YOUR VOTE IS VERY IMPORTANT

TABLE OF CONTENTS  Filed Pursuant to Rule 424(b)(3)  Registration No. 333-281733 PROXY STATEMENT/PROSPECTUS TO GLATFELTER SHAREHOLDERS YOUR VOTE IS VERY IMPORTANT Dear Shareholders: As previously announced, on February 6, 2024, Glatfelter Corporation (“Glatfelter”), Treasure Merger Sub I, Inc., a Delaware corporation and a wholly owned subsidiary of Glatfelter (“First Merger Sub”) and Treasure Mer

September 13, 2024

September 13, 2024 VIA EDGAR U.S. Securities and Exchange Commission Division of Corporation Finance 100 F Street, N.E. Washington, D.C. 20549 Attention: Bradley Ecker Jennifer Angelini Charles Eastman Martin James Re: Glatfelter Corporation Registration Statement on Form S-4/A Filed September 10, 2024 File No. 333-281733 Dear Mr. Ecker: With respect to the above-referenced registration statement

Consent of Mary Dean Hall to be named as a director.

Exhibit 99.7 Rule 438 Consent of Prospective Director In accordance with Rule 438 promulgated under the Securities Act of 1933, as amended, I hereby consent to my being named in the Registration Statement on Form S-4 and all amendments (including post-effective amendments) thereto (the “Registration Statement”), filed by Glatfelter Corporation with the Securities and Exchange Commission, and any p

As filed with the Securities and Exchange Commission on September 10, 2024

TABLE OF CONTENTS As filed with the Securities and Exchange Commission on September 10, 2024 Registration No.

* * * * * * * * * * * * *

King & Spalding LLP 1100 Louisiana Street Suite 4100 Houston, TX 77002-5213 Tel: +1 713 751 3200 Fax: +1 713 751 3290 www.

Possibilities Made Real SPECIAL NOTICE REGARDING PUBLICLY AVAILABLE INFORMATION THE COMPANY HAS REPRESENTED THAT THE INFORMATION CONTAINED IN THIS LENDER PRESENTATION IS EITHER PUBLICLY AVAILABLE OR DOES NOT CONSTITUTE MATERIAL NON-PUBLIC INFORMATION

Filed by: Berry Global Group, Inc. Commission File No.: 001-35672 Pursuant to Rule 425 under the Securities Act of 1933 Subject Company: Glatfelter Corporation (Commission File No.: 001-03560) Below is a communication made by Berry Global Group, Inc. on September 4, 2024. THE INFORMATION CONTAINED IN THE LENDER PRESENTATION BELOW HAS BEEN MADE AVAILABLE TO POTENTIAL LENDERS IN CONNECTION WITH THE

Consent of Michael S. Curless to be named as a director.

Exhibit 99.3 Rule 438 Consent of Prospective Director In accordance with Rule 438 promulgated under the Securities Act of 1933, as amended, I hereby consent to my being named in the Registration Statement on Form S-4 and all amendments (including post-effective amendments) thereto (the “Registration Statement”), filed by Glatfelter Corporation with the Securities and Exchange Commission, and any p

Consent of Curtis L. Begle to be named as a director.

Exhibit 99.2 Rule 438 Consent of Prospective Director In accordance with Rule 438 promulgated under the Securities Act of 1933, as amended, I hereby consent to my being named in the Registration Statement on Form S-4 and all amendments (including post-effective amendments) thereto (the “Registration Statement”), filed by Glatfelter Corporation with the Securities and Exchange Commission, and any p

Consent of Thomas E. Salmon to be named as a director.

Exhibit 99.6 Rule 438 Consent of Prospective Director In accordance with Rule 438 promulgated under the Securities Act of 1933, as amended, I hereby consent to my being named in the Registration Statement on Form S-4 and all amendments (including post-effective amendments) thereto (the “Registration Statement”), filed by Glatfelter Corporation with the Securities and Exchange Commission, and any p

Consent of Samantha J. Marnick to be named as a director.

Exhibit 99.4 Rule 438 Consent of Prospective Director In accordance with Rule 438 promulgated under the Securities Act of 1933, as amended, I hereby consent to my being named in the Registration Statement on Form S-4 and all amendments (including post-effective amendments) thereto (the “Registration Statement”), filed by Glatfelter Corporation with the Securities and Exchange Commission, and any p

First Amendment, dated as of July 8, 2024, to the Employee Matters Agreement, by and among Glatfelter Corporation, Berry Global Group, Inc. and Treasure Holdco, Inc.

Exhibit 10.4 Execution Version FIRST AMENDMENT TO EMPLOYEE MATTERS AGREEMENT This First Amendment TO EMPLOYEE MATTERS AGREEMENT (this “Amendment”) is made on this 8th day of July, 2024, by and among BERRY GLOBAL GROUP, INC., a Delaware corporation (“Remainco”), TREASURE HOLDCO, INC., a Delaware corporation and a wholly owned indirect Subsidiary of Remainco (“Spinco”), and GLATFELTER CORPORATION, a

Consent of Carl J. Rickertsen to be named as a director.

Exhibit 99.5 Rule 438 Consent of Prospective Director In accordance with Rule 438 promulgated under the Securities Act of 1933, as amended, I hereby consent to my being named in the Registration Statement on Form S-4 and all amendments (including post-effective amendments) thereto (the “Registration Statement”), filed by Glatfelter Corporation with the Securities and Exchange Commission, and any p

Filing Fee Table.

Exhibit 107 EX-FILING FEES Calculation of Filing Fee Tables Form S-4 (Form Type) Glatfelter Corporation (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered and Carry Forward Securities Security Type Security Class Title Fee Calculation or Carry Forward Rule Amount Registered Proposed Maximum Offering Price Per Unit Maximum Aggregate Offering Price Fee Rate Amount of Registration Fee Carry Forward Form Type Carry Forward File Number Carry Forward Initial effective date Filing Fee Previously Paid In Connection with Unsold Securities to be Carried Forward Newly Registered Securities Fees to Be Paid Equity Glatfelter common stock 457(c), and 457(f)(1) 429,445,044(1) N/A $755,823,277.

Consent of J.P. Morgan Securities LLC.

Exhibit 99.1 CONSENT OF J.P. MORGAN SECURITIES LLC We hereby consent to (i) the inclusion of our opinion letter dated February 6, 2024 to the Board of Directors of Glatfelter Corporation as Annex D to the proxy statement/prospectus, which forms a part of a registration statement on Form S-4 (the “Registration Statement”) relating to the proposed series of transactions described therein and (ii) th

As filed with the Securities and Exchange Commission on August 23, 2024

TABLE OF CONTENTS As filed with the Securities and Exchange Commission on August 23, 2024 Registration No.

Form of Transition Services Agreement, to be entered into by and between Berry Global, Inc., and Treasure Merger Sub II, LLC (the Surviving Entity).

EXHIBIT 10.3 FORM OF TRANSITION SERVICES AGREEMENT This TRANSITION SERVICES AGREEMENT (as it may be amended or supplemented from time to time in accordance with the terms hereof, this “Agreement”) is dated as of [●], and is by and between BERRY GLOBAL, INC., a Delaware corporation (“BGI”), and [●], a Delaware limited liability company (the “Surviving Entity”). BGI and the Surviving Entity are here

BERRY AND GLATFELTER ANNOUNCE MAGNERA BOARD OF DIRECTOR APPOINTMENTS IN CONNECTION WITH PROPOSED MERGER OF BERRY’S HEALTH, HYGIENE AND SPECIALTIES GLOBAL NONWOVENS AND FILMS BUSINESS WITH GLATFELTER

Exhibit 99.1 P R E S S R E L E A S E For Immediate Release BERRY AND GLATFELTER ANNOUNCE MAGNERA BOARD OF DIRECTOR APPOINTMENTS IN CONNECTION WITH PROPOSED MERGER OF BERRY’S HEALTH, HYGIENE AND SPECIALTIES GLOBAL NONWOVENS AND FILMS BUSINESS WITH GLATFELTER CHARLOTTE, North Carolina – August 16, 2024: Glatfelter Corporation (NYSE: GLT), and Berry Global Group, Inc (NYSE: BERY) today announce addit

BERRY AND GLATFELTER ANNOUNCE MAGNERA BOARD OF DIRECTOR APPOINTMENTS IN CONNECTION WITH PROPOSED MERGER OF BERRY’S HEALTH, HYGIENE AND SPECIALTIES GLOBAL NONWOVENS AND FILMS BUSINESS WITH GLATFELTER

Exhibit 99.1 P R E S S R E L E A S E For Immediate Release BERRY AND GLATFELTER ANNOUNCE MAGNERA BOARD OF DIRECTOR APPOINTMENTS IN CONNECTION WITH PROPOSED MERGER OF BERRY’S HEALTH, HYGIENE AND SPECIALTIES GLOBAL NONWOVENS AND FILMS BUSINESS WITH GLATFELTER CHARLOTTE, North Carolina – August 16, 2024: Glatfelter Corporation (NYSE: GLT), and Berry Global Group, Inc (NYSE: BERY) today announce addit

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 16, 2024

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 16, 2024 Glatfelter Corporation (Exact name of registrant as specified in its charter) Pennsylvania 001-03560 23-0628360 (State or other jurisdiction of incorporation) (Commiss

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 16, 2024

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 16, 2024 Glatfelter Corporation (Exact name of registrant as specified in its charter) Pennsylvania 001-03560 23-0628360 (State or other jurisdiction of incorporation) (Commiss

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

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q ☒ Quarterly Report pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the quarterly period ended June 30, 2024 or ☐ Transition Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the transition period from to 4350 Congress Street, Suite 600 Charlotte, North Caroli

GLATFELTER REPORTS SECOND QUARTER 2024 RESULTS ~ Received Required Antitrust Regulatory Clearances and IRS ruling for Announced Merger ~ ~ Achieved Meaningful Year-over-Year EBITDA Improvement ~

Exhibit 99.1 N E W S R E L E A S E Corporate Headquarters 4350 Congress Street Suite 600 Charlotte, NC 28209 U.S.A. www.glatfelter.com For Immediate Release Contacts: Investors: Media: Ramesh Shettigar Eileen L. Beck (717) 225-2746 (717) 225-2793 [email protected] [email protected] GLATFELTER REPORTS SECOND QUARTER 2024 RESULTS ~ Received Required Antitrust Regulatory Cleara

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): August 8, 2024 Glatfelter Corporation (Exact name of registrant as specified in its charter) Pennsylvania 001-03560 23-0628360 (State or other jurisdiction of incorporation) (Commissi

1

Filed by: Berry Global Group, Inc. Commission File No.: 001-35672 Pursuant to Rule 425 under the Securities Act of 1933 Subject Company: Glatfelter Corporation (Commission File No.: 001-03560) Below is a press release issued jointly by Berry Global Group, Inc. and Glatfelter Corporation on July 24, 2024: Magnera Brand Launch: Press release For Immediate Release Berry and Glatfelter Announce New Br

GLT / Glatfelter Corporation / CARLSON CAPITAL L P - SC 13D/A Activist Investment

SC 13D/A 1 d699983dsc13da.htm SC 13D/A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 (Amendment No. 4)* Glatfelter Corporation (Name of Issuer) Common Stock, $0.01 par value per share (Title of Class of Securities) 377316104 (CUSIP Number) Carlson Capital, L.P. Attn: Rahim Ibrahim 2100 McKinney Avenue, Suite 1900 Dall

Filed by: Berry Global Group, Inc.

Filed by: Berry Global Group, Inc. Commission File No.: 001-35672 Pursuant to Rule 425 under the Securities Act of 1933 Subject Company: Glatfelter Corporation (Commission File No.: 001-03560) Below is a press release issued jointly by Berry Global Group, Inc. and Glatfelter Corporation on June 25, 2024: Berry and Glatfelter Announce Additional Regulatory Milestone in Proposed Transaction for Spin

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

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 11-K ☒ Annual report pursuant to Section 15(d) of the Securities Exchange Act of 1934 For the fiscal year ended December 31, 2023 or ☐ Transition Report Pursuant to Section 15(d) of the Securities Exchange Act of 1934 For the transition period from to Commission file number 1-3560 A.Full title of the plan and the address

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 23, 2024

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 23, 2024 Glatfelter Corporation (Exact name of registrant as specified in its charter) Pennsylvania 001-03560 23-0628360 (State or other jurisdiction of incorporation) (Commission

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

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 23, 2024 Glatfelter Corporation (Exact name of registrant as specified in its charter) Pennsylvania 001-03560 23-0628360 (State or other jurisdiction of incorporation) (Commission

Filed by: Berry Global Group, Inc.

Filed by: Berry Global Group, Inc. Commission File No.: 001-35672 Pursuant to Rule 425 under the Securities Act of 1933 Subject Company: Glatfelter Corporation (Commission File No.: 001-03560) Below is a communication made by Berry Global Group, Inc. on May 30, 2024: An Important Message from Curt Begle, President, Berry Health, Hygiene & Specialties Dear HHS team, Today I am pleased to provide a

Filed by: Berry Global Group, Inc.

Filed by: Berry Global Group, Inc. Commission File No.: 001-35672 Pursuant to Rule 425 under the Securities Act of 1933 Subject Company: Glatfelter Corporation (Commission File No.: 001-03560) Below is a communication made by Berry Global Group, Inc. on May 30, 2024: An Important Message from Curt Begle, President, Berry Health, Hygiene & Specialties May 30, 2024 Dear Glatfelter Colleagues, Today

Submission of Matters to a Vote of Security Holders

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of Earliest Event Reported): May 10, 2024 Glatfelter Corporation (Exact name of registrant as specified in its charter) Pennsylvania 001-03560 23-0628360 (State or other jurisdiction of incorporation) (Commission

Submission of Matters to a Vote of Security Holders

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K/A CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of Earliest Event Reported): May 10, 2024 Glatfelter Corporation (Exact name of registrant as specified in its charter) Pennsylvania 001-03560 23-0628360 (State or other jurisdiction of incorporation) (Commissi

Berry Global Group, Inc. Announces Proposed Offering of First Priority Senior Secured Notes

Exhibit 99.2 FOR IMMEDIATE RELEASE Berry Global Group, Inc. Announces Proposed Offering of First Priority Senior Secured Notes EVANSVILLE, Ind. – May 13, 2024 - Berry Global Group, Inc. (NYSE: BERY) (“Berry”) announced today that its wholly-owned subsidiary, Berry Global, Inc. (the “Issuer”), plans to issue a new series of first priority senior secured notes (the “Notes”). The net proceeds from th

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 13, 2024 BERRY GLOBAL GROUP,

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 13, 2024 BERRY GLOBAL GROUP, INC. (Exact name of registrant as specified in its charter) Delaware 1-35672 20-5234618 (State or other jurisdiction of incorporation or organization)

On February 7, 2024, Berry Global Group, Inc. (“Berry”) entered into certain definitive agreements with Glatfelter Corporation (“Glatfelter”) and certain of their respective subsidiaries that for a series of transactions including the spinoff of the

Exhibit 99.1 On February 7, 2024, Berry Global Group, Inc. (“Berry”) entered into certain definitive agreements with Glatfelter Corporation (“Glatfelter”) and certain of their respective subsidiaries that for a series of transactions including the spinoff of the global nonwovens and hygiene films business (the “HHNF Business”) of Berry and subsequent merger of the HHNF Business with and into a sub

US085770AA31

Exhibit 99.3 Berry Global Announces Tender Offer for Certain Outstanding 4.875% First Priority Senior Secured Notes Due 2026 EVANSVILLE, Ind. – May 13, 2024 – Berry Global Group, Inc. (NYSE: BERY) (“Berry”), a leading supplier of packaging solutions for consumer goods and industrial products, announced today the commencement by Berry Global, Inc., its wholly owned subsidiary (the “Company”), of an

Glatfelter Corporation Amended and Restated By-Laws (incorporated by reference to Exhibit 3.2 to the Quarterly Report on Form 10-Q of Glatfelter Corporation filed on May 9, 2024).

GLATFELTER CORPORATION (a Pennsylvania corporation) AMENDED AND RESTATED BYLAWS (Amended and Restated as of December 15, 2023) TABLE OF CONTENTS Page -i- DB1/ 137055127.

2024 Employee Cash Restoration Letter.**

EXHIBIT 10.7 As noted in your Long-Term Incentive (“LTI”) Program letter, Glatfelter Corporation (“Glatfelter” or “the Company”) is providing you with the opportunity to receive a Cash Restoration payment intended to keep your long-term incentive compensation value whole subject to your continued employment with Glatfelter through the respective vesting dates. The Cash Restoration component repres

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

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q ☒ Quarterly Report pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the quarterly period ended March 31, 2024 or ☐ Transition Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the transition period from to 4350 Congress Street, Suite 600 Charlotte, North Carol

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 9, 2024 Glatfelter Corporation (Exact name of registrant as specified in its charter) Pennsylvania 001-03560 23-0628360 (State or other jurisdiction of incorporation) (Commission

Term Sheet, dated February 5, 2024, by and between Curt Begle and Glatfelter Corporation.**

EXHIBIT 10.5 Corporate Headquarters 4350 Congress Street, Suite 600 · Charlotte, NC 28209 U.S.A. · Phone 704-885-2555 · Fax 704-885-2429 www.glatfelter.com EXHIBIT 10.5 Corporate Headquarters 4350 Congress Street, Suite 600 · Charlotte, NC 28209 U.S.A. · Phone 704-885-2555 · Fax 704-885-2429 www.glatfelter.com EXHIBIT 10.5 Corporate Headquarters 4350 Congress Street, Suite 600 · Charlotte, NC 2820

2024 Retention Template.**

Personal and Confidential (NAME) February 21, 2024 Dear (FIRST NAME), I am very pleased to inform you that you have been selected to participate in a special retention program that is designed to support a successful closing of the recently announced proposed transaction between Glatfelter and Berry Global’s HHNF business.

Form of Restricted Stock Unit Award Certificate (form effective as of February 28, 2024).**

EXHIBIT 10.6 Glatfelter Corporation Restricted Stock Unit Award Certificate Award Number: 2024-RSU-01 Award Date: February 28, 2024 Number of Restricted Stock Units: XXXX Vesting Schedule: Vesting Date RSUs Vesting December 31, 2024 33.33% February 28, 2026 33.33% February 28, 2027 33.34% THIS CERTIFIES THAT Glatfelter Corporation, a Pennsylvania corporation (the “Company”) has on the Award Date s

GLATFELTER REPORTS FIRST QUARTER 2024 RESULTS ~ Achieved significant merger milestone with expiration of HSR waiting period ~

Exhibit 99.1 N E W S R E L E A S E Corporate Headquarters 4350 Congress Street Suite 600 Charlotte, NC 28209 U.S.A. www.glatfelter.com For Immediate Release Contacts: Investors: Media: Ramesh Shettigar Eileen L. Beck (717) 225-2746 (717) 225-2793 [email protected] [email protected] GLATFELTER REPORTS FIRST QUARTER 2024 RESULTS ~ Achieved significant merger milestone with exp

Filed by: Berry Global Group, Inc.

Filed by: Berry Global Group, Inc. Commission File No.: 001-35672 Pursuant to Rule 425 under the Securities Act of 1933 Subject Company: Glatfelter Corporation (Commission File No.: 001-03560) Below is a press release issued jointly by Berry Global Group, Inc. and Glatfelter Corporation on April 17, 2024: Berry and Glatfelter Announce Regulatory Milestone in Proposed Transaction for Spin-Off and M

Filed by: Berry Global Group, Inc.

Filed by: Berry Global Group, Inc. Commission File No.: 001-35672 Pursuant to Rule 425 under the Securities Act of 1933 Subject Company: Glatfelter Corporation (Commission File No.: 001-03560) Below is a communication made by Berry Global Group, Inc. on April 11, 2024: An Important Message from Curt Begle, President, Berry Health, Hygiene & Specialties Dear Glatfelter Colleagues, I want to take th

Term Sheet, dated April 10, 2024, by and between Tarun Manroa and Glatfelter Corporation

Exhibit 10.2 EVP, COO Term Sheet Between Tarun Manroa (“Executive”) and Glatfelter Corporation (the “Company”) The following Term Sheet, dated April 10, 2024, sets forth the key terms and conditions of proposed employment between Executive and the Company to be entered into in connection with the consummation of the transactions contemplated by the Separation and Distribution Agreement, dated Febr

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

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of Earliest Event Reported): April 8, 2024 Glatfelter Corporation (Exact name of registrant as specified in its charter) Pennsylvania 001-03560 23-0628360 (State or other jurisdiction of incorporation) (Commissio

GLATFELTER ANNOUNCES Key Leadership Appointments IN CONNECTION WITH PROPOSED MERGER WITH BERRY’S HEALTH, HYGIENE, AND SPECIALTIES GLOBAL NONWOVENS AND FILMS BUSINESS ~ Kevin M. Fogarty to serve as Non-Executive Chair of the Board of Directors for the

Exhibit 99.1 N E W S R E L E A S E Corporate Headquarters 4350 Congress Street Suite 600 Charlotte, NC 28209 U.S.A. www.glatfelter.com For Immediate Release Contacts: Investors: Media: Ramesh Shettigar Eileen L. Beck (717) 225-2746 (717) 225-2793 [email protected] [email protected] GLATFELTER ANNOUNCES Key Leadership Appointments IN CONNECTION WITH PROPOSED MERGER WITH BERRY

Term Sheet, dated April 10, 2024, by and between Tarun Manroa and Glatfelter Corporation

Exhibit 10.2 EVP, COO Term Sheet Between Tarun Manroa (“Executive”) and Glatfelter Corporation (the “Company”) The following Term Sheet, dated April 10, 2024, sets forth the key terms and conditions of proposed employment between Executive and the Company to be entered into in connection with the consummation of the transactions contemplated by the Separation and Distribution Agreement, dated Febr

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 8, 2024

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 8, 2024 Glatfelter Corporation (Exact name of registrant as specified in its charter) Pennsylvania 001-03560 23-0628360 (State or other jurisdiction of incorporation) (Commissio

Term Sheet, dated April 10, 2024, by and between James M. Till and Glatfelter Corporation

Exhibit 10.1 EVP, CFO & Treasurer Term Sheet Between James M. Till (“Executive”) and Glatfelter Corporation (the “Company”) The following Term Sheet, dated April 10, 2024, sets forth the key terms and conditions of proposed employment between Executive and the Company to be entered into in connection with the consummation of the transactions contemplated by the Separation and Distribution Agreemen

Term Sheet, dated April 10, 2024, by and between James M. Till and Glatfelter Corporation

Exhibit 10.1 EVP, CFO & Treasurer Term Sheet Between James M. Till (“Executive”) and Glatfelter Corporation (the “Company”) The following Term Sheet, dated April 10, 2024, sets forth the key terms and conditions of proposed employment between Executive and the Company to be entered into in connection with the consummation of the transactions contemplated by the Separation and Distribution Agreemen

Filed by: Berry Global Group, Inc.

Filed by: Berry Global Group, Inc. Commission File No.: 001-35672 Pursuant to Rule 425 under the Securities Act of 1933 Subject Company: Glatfelter Corporation (Commission File No.: 001-03560) Below is a communication made by Berry Global Group, Inc. on April 11, 2024: Plant Managers, please post at your facility. To: All Berry Global Employees Date: April 11, 2024 In February, we announced the pl

GLATFELTER ANNOUNCES Key Leadership Appointments IN CONNECTION WITH PROPOSED MERGER WITH BERRY’S HEALTH, HYGIENE, AND SPECIALTIES GLOBAL NONWOVENS AND FILMS BUSINESS ~ Kevin M. Fogarty to serve as Non-Executive Chair of the Board of Directors for the

Exhibit 99.1 N E W S R E L E A S E Corporate Headquarters 4350 Congress Street Suite 600 Charlotte, NC 28209 U.S.A. www.glatfelter.com For Immediate Release Contacts: Investors: Media: Ramesh Shettigar Eileen L. Beck (717) 225-2746 (717) 225-2793 [email protected] [email protected] GLATFELTER ANNOUNCES Key Leadership Appointments IN CONNECTION WITH PROPOSED MERGER WITH BERRY

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.)

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 Defini

GLT / Glatfelter Corporation / Cetus Capital VI, L.P. - SC 13G Passive Investment

SC 13G 1 tm249517d1sc13g.htm SC 13G UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 Glatfelter Corporation (Name of Issuer) Common Stock, $.01 par value per share (Title of Class of Securities) 377320106 (CUSIP Number) Cetus Capital VI, L.P. 8 Sound Shore Drive Suite 303 Greenwich, CT 06830 (203) 552-3500 Copy to: Shon

Update on the Proposed Berry / Glatfelter Transaction From Thomas Fahnemann, President & Chief Executive Officer

Filed by Glatfelter Corporation Pursuant to Rule 425 under the Securities Act of 1933 and Deemed Filed under Rule 14a-12 under the Securities Exchange Act of 1934 Subject Company: Glatfelter Corporation Commission File No.

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): February 28, 2024 Glatfelter Corporation (Exact name of registrant as specified in its charter) Pennsylvania 001-03560 23-0628360 (State or other jurisdiction of incorporation) (Commi

Schedule of Change in Control Employment Agreements. **

EXHIBIT 10.22 SCHEDULE OF CHANGE IN CONTROL EMPLOYMENT AGREEMENTS In accordance with the Instructions to Item 601 of Regulation S-K, the Registrant has omitted filing Change in Control Employment Agreements by and between Glatfelter Corporation and the following employees as exhibits to the Form 10-K for the year ended December 31, 2023 because they are substantially identical to the Form of Chang

Dodd-Frank Compensation Recoupment Policy of Glatfelter Corporation, filed herewith.

EXHIBIT 97.1 DODD-FRANK COMPENSATION RECOUPMENT POLICY OF GLATFELTER CORPORATION Effective October 2, 2023 EXHIBIT 97.1 Section 1. Purpose. Glatfelter Corporation (the “Company”) has adopted this Dodd-Frank Compensation Recoupment Policy (this “Policy”) to implement a mandatory clawback policy in the event of a Restatement in compliance with the applicable rules of the New York Stock Exchange. Any

Subsidiaries of Glatfelter Corporation (incorporated by reference to Exhibit 21.1 to the Annual Report on Form 10-K of Glatfelter Corporation filed on February 28, 2024).

Exhibit 21.1 Significant Subsidiaries Glatfelter Corporation Name Jurisdiction Glatfelter Corporation (parent) U.S. (Pennsylvania) Glatfelter Advanced Materials N.A., LLC U.S. (Delaware) Glatfelter Caerphilly, Ltd. United Kingdom Glatfelter Composite Fibers NA, Inc. U.S. (Delaware) Glatfelter Dresden GmbH Germany Glatfelter Falkenhagen GmbH Germany Glatfelter Gatineau Ltèe Canada Glatfelter Gernsb

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

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-K ☑ Annual report pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the fiscal year ended December 31, 2023 or ☐ Transition Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the transition period from to 4350 Congress Street, Suite 600 Charlotte

GLATFELTER REPORTS FOURTH QUARTER AND YEAR END 2023 RESULTS ~ Q4 performance in-line with expectations despite reduced production to manage inventory levels ~ ~ Announced plans for Merger with Berry Global's HHNF business anticipated in second half o

Exhibit 99.1 N E W S R E L E A S E Corporate Headquarters 4350 Congress Street Suite 600 Charlotte, NC 28209 U.S.A. www.glatfelter.com For Immediate Release Contacts: Investors: Media: Ramesh Shettigar Eileen L. Beck (717) 225-2746 (717) 225-2793 [email protected] [email protected] GLATFELTER REPORTS FOURTH QUARTER AND YEAR END 2023 RESULTS ~ Q4 performance in-line with expe

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 22, 2024 Glatfelter Corporation (Exact name of registrant as specified in its charter) Pennsylvania 001-03560 23-0628360 (State or other jurisdiction of incorporation) (Commi

February 2024 Berry’s HH&S Global Nonwovens & Films and Glatfelter Supplementary Investor Presentation Creating a Global Leader in Specialty Materials for Attractive End Markets Transaction Overview & Valuation 1 Transaction Summary Deal Structure Ow

Filed by: Berry Global Group, Inc. Commission File No.: 001-35672 Pursuant to Rule 425 under the Securities Act of 1933 Subject Company: Glatfelter Corporation (Commission File No.: 001-03560) Below is a communication made by Berry Global Group, Inc. on February 22, 2024: February 2024 Berry’s HH&S Global Nonwovens & Films and Glatfelter Supplementary Investor Presentation Creating a Global Leader

GLT / Glatfelter Corporation / VANGUARD GROUP INC - SCHEDULE 13G Passive Investment

SC 13G 1 tv0074-glatfeltercorp.htm SCHEDULE 13G SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 Name of issuer: Glatfelter Corp Title of Class of Securities: Common Stock CUSIP Number: 377320106 Date of Event Which Requires Filing of this Statement: December 29, 2023 Check the appropriate box to designate the rule pursuant to which t

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Entry into a Material Definitive Agreement, 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): February 6, 2024 Glatfelter Corporation (Exact name of registrant as specified in its charter) Pennsylvania 001-03560 23-0628360 (State or other jurisdiction of in

Tax Matters Agreement, dated February 6, 2024, by and among Berry Global Group, Inc., Treasure Holdco, Inc. and Glatfelter Corporation

Exhibit 10.1   EXECUTION VERSION   TAX MATTERS AGREEMENT   by and among   BERRY GLOBAL GROUP, INC.,   TREASURE HOLDCO, INC.,   and   GLATFELTER CORPORATION,   Dated as of February 6, 2024         TAX MATTERS AGREEMENT   This TAX MATTERS AGREEMENT (this “Agreement”) is entered into as of February 6, 2024, by and among BERRY GLOBAL GROUP, INC. (“Remainco”), a Delaware corporation, on behalf of itsel

Separation and Distribution Agreement, dated February 6, 2024, by and among Berry Global Group, Inc., Treasure Holdco, Inc. and Glatfelter Corporation *

Exhibit 2.2 EXECUTION VERSION SEPARATION AND DISTRIBUTION AGREEMENT by and among BERRY GLOBAL GROUP, INC., TREASURE HOLDCO, INC., and GLATFELTER CORPORATION Dated as of February 6, 2024 TABLE OF CONTENTS Page Article I THE SEPARATION Section 1.1 Transfer of Assets and Assumption of Liabilities 5 Section 1.2 Separation Plan; Separation Committee 8 Section 1.3 Commingled Contracts; Combined Contract

Separation and Distribution Agreement, dated as of February 6, 2024, by and among Glatfelter Corporation, Berry Global Group, Inc., and Treasure Holdco, Inc. *

Exhibit 2.2 EXECUTION VERSION SEPARATION AND DISTRIBUTION AGREEMENT by and among BERRY GLOBAL GROUP, INC., TREASURE HOLDCO, INC., and GLATFELTER CORPORATION Dated as of February 6, 2024 TABLE OF CONTENTS Page Article I THE SEPARATION Section 1.1 Transfer of Assets and Assumption of Liabilities 5 Section 1.2 Separation Plan; Separation Committee 8 Section 1.3 Commingled Contracts; Combined Contract

Tax Matters Agreement, dated as of February 6, 2024, by and among Glatfelter Corporation, Berry Global Group, Inc., and Treasure Holdco, Inc.

Exhibit 10.2   EXECUTION VERSION   TAX MATTERS AGREEMENT   by and among   BERRY GLOBAL GROUP, INC.,   TREASURE HOLDCO, INC.,   and   GLATFELTER CORPORATION,   Dated as of February 6, 2024         TAX MATTERS AGREEMENT   This TAX MATTERS AGREEMENT (this “Agreement”) is entered into as of February 6, 2024, by and among BERRY GLOBAL GROUP, INC. (“Remainco”), a Delaware corporation, on behalf of itsel

Employee Matters Agreement, dated as of February 6, 2024, by and among Glatfelter Corporation, Berry Global Group, Inc., and Treasure Holdco, Inc. *

Exhibit 10.1 EXECUTION VERSION EMPLOYEE MATTERS AGREEMENT by and among BERRY GLOBAL GROUP, INC., TREASURE HOLDCO, INC., and GLATFELTER CORPORATION Dated as of February 6, 2024 EMPLOYEE MATTERS AGREEMENT EMPLOYEE MATTERS AGREEMENT (this “Agreement”), dated as of February 6, 2024, by and among BERRY GLOBAL GROUP, INC., a Delaware corporation (“Remainco”), TREASURE HOLDCO, INC., a Delaware corporatio

RMT Transaction Agreement, dated as of February 6, 2024, by and among Glatfelter Corporation, Treasure Merger Sub I, Inc., Treasure Merger Sub II, LLC, Berry Global Group, Inc., and Treasure Holdco, Inc.*

Exhibit 2.1 EXECUTION VERSION RMT TRANSACTION AGREEMENT among BERRY GLOBAL GROUP, INC., TREASURE HOLDCO, INC., GLATFELTER CORPORATION, TREASURE MERGER SUB I, INC. and TREASURE MERGER SUB II, LLC Dated as of February 6, 2024 TABLE OF CONTENTS Page Article I THE RMT PARTNER CHARTER AMENDMENT Section 1.1 The RMT Partner Charter Amendment 3 Section 1.2 Charter Amendment Effective Time 3 Article II THE

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): February 6, 2

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): February 6, 2024 Glatfelter Corporation (Exact name of registrant as specified in its charter) Pennsylvania 001-03560 23-0628360 (State or other jurisdiction of in

RMT Transaction Agreement, dated as of February 6, 2024, by and among Glatfelter Corporation, Treasure Merger Sub I, Inc., Treasure Merger Sub II, LLC, Berry Global Group, Inc., and Treasure Holdco, Inc.*

Exhibit 2.1 EXECUTION VERSION RMT TRANSACTION AGREEMENT among BERRY GLOBAL GROUP, INC., TREASURE HOLDCO, INC., GLATFELTER CORPORATION, TREASURE MERGER SUB I, INC. and TREASURE MERGER SUB II, LLC Dated as of February 6, 2024 TABLE OF CONTENTS Page Article I THE RMT PARTNER CHARTER AMENDMENT Section 1.1 The RMT Partner Charter Amendment 3 Section 1.2 Charter Amendment Effective Time 3 Article II THE

Employee Matters Agreement, dated February 6, 2024, by and among Berry Global Group, Inc., Treasure Holdco, Inc. and Glatfelter Corporation

Exhibit 10.2 EXECUTION VERSION EMPLOYEE MATTERS AGREEMENT by and among BERRY GLOBAL GROUP, INC., TREASURE HOLDCO, INC., and GLATFELTER CORPORATION Dated as of February 6, 2024 EMPLOYEE MATTERS AGREEMENT EMPLOYEE MATTERS AGREEMENT (this “Agreement”), dated as of February 6, 2024, by and among BERRY GLOBAL GROUP, INC., a Delaware corporation (“Remainco”), TREASURE HOLDCO, INC., a Delaware corporatio

Separation and Distribution Agreement, dated as of February 6, 2024, by and among Glatfelter Corporation, Berry Global Group, Inc., and Treasure Holdco, Inc. *

Exhibit 2.2 EXECUTION VERSION SEPARATION AND DISTRIBUTION AGREEMENT by and among BERRY GLOBAL GROUP, INC., TREASURE HOLDCO, INC., and GLATFELTER CORPORATION Dated as of February 6, 2024 TABLE OF CONTENTS Page Article I THE SEPARATION Section 1.1 Transfer of Assets and Assumption of Liabilities 5 Section 1.2 Separation Plan; Separation Committee 8 Section 1.3 Commingled Contracts; Combined Contract

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): February 6,

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): February 6, 2024 BERRY GLOBAL GROUP, INC. (Exact Name of Registrant as Specified in Charter) Delaware 1-35672 20-5234618 (State or Other Jurisdiction of Incorpora

Employee Matters Agreement, dated as of February 6, 2024, by and among Glatfelter Corporation, Berry Global Group, Inc. and Treasure Holdco, Inc. (incorporated by reference to Exhibit 10.1 to the Current Report on Form 8-K of Glatfelter Corporation filed on February 12, 2024).†

Exhibit 10.1 EXECUTION VERSION EMPLOYEE MATTERS AGREEMENT by and among BERRY GLOBAL GROUP, INC., TREASURE HOLDCO, INC., and GLATFELTER CORPORATION Dated as of February 6, 2024 EMPLOYEE MATTERS AGREEMENT EMPLOYEE MATTERS AGREEMENT (this “Agreement”), dated as of February 6, 2024, by and among BERRY GLOBAL GROUP, INC., a Delaware corporation (“Remainco”), TREASURE HOLDCO, INC., a Delaware corporatio

RMT Transaction Agreement, dated February 6, 2024, by and among Berry Global Group, Inc., Treasure Holdco, Inc., Glatfelter Corporation, Treasure Merger Sub I, Inc. and Treasure Merger Sub II, LLC *

Exhibit 2.1 EXECUTION VERSION RMT TRANSACTION AGREEMENT among BERRY GLOBAL GROUP, INC., TREASURE HOLDCO, INC., GLATFELTER CORPORATION, TREASURE MERGER SUB I, INC. and TREASURE MERGER SUB II, LLC Dated as of February 6, 2024 TABLE OF CONTENTS Page Article I THE RMT PARTNER CHARTER AMENDMENT Section 1.1 The RMT Partner Charter Amendment 3 Section 1.2 Charter Amendment Effective Time 3 Article II THE

Tax Matters Agreement, dated as of February 6, 2024, by and among Glatfelter Corporation, Berry Global Group, Inc. and Treasure Holdco, Inc. (incorporated by reference to Exhibit 10.2 to the Current Report on Form 8-K of Glatfelter Corporation filed on February 12, 2024).

Exhibit 10.2   EXECUTION VERSION   TAX MATTERS AGREEMENT   by and among   BERRY GLOBAL GROUP, INC.,   TREASURE HOLDCO, INC.,   and   GLATFELTER CORPORATION,   Dated as of February 6, 2024         TAX MATTERS AGREEMENT   This TAX MATTERS AGREEMENT (this “Agreement”) is entered into as of February 6, 2024, by and among BERRY GLOBAL GROUP, INC. (“Remainco”), a Delaware corporation, on behalf of itsel

Corporate Headquarters 4350 Congress Street, Suite 600 • Charlotte, NC 28209 U.S.A. • Phone 704-885-2555 • Fax 707-885-2429

Filed by Glatfelter Corporation Pursuant to Rule 425 under the Securities Act of 1933 and Deemed Filed under Rule 14a-12 under the Securities Exchange Act of 1934 Subject Company: Glatfelter Corporation Commission File No.

Corporate Headquarters 4350 Congress Street, Suite 600 • Charlotte, NC 28209 U.S.A. • Phone 704-885-2555 • Fax 707-885-2429

Filed by Glatfelter Corporation Pursuant to Rule 425 under the Securities Act of 1933 and Deemed Filed under Rule 14a-12 under the Securities Exchange Act of 1934 Subject Company: Glatfelter Corporation Commission File No.

REFINITIV STREETEVENTS EDITED TRANSCRIPT BERY.N - Q1 2024 Berry Global Group Inc Earnings Call EVENT DATE/TIME: FEBRUARY 07, 2024 / 3:00PM GMT OVERVIEW: Company Summary REFINITIV STREETEVENTS | www.refinitiv.com | Contact Us ©2024 Refinitiv. All righ

Filed by: Berry Global Group, Inc. Commission File No.: 001-35672 Pursuant to Rule 425 under the Securities Act of 1933 Subject Company: Glatfelter Corporation (Commission File No.: 001-03560) Below is a communication made by Berry Global Group, Inc. on February 7, 2024: REFINITIV STREETEVENTS EDITED TRANSCRIPT BERY.N - Q1 2024 Berry Global Group Inc Earnings Call EVENT DATE/TIME: FEBRUARY 07, 202

REFINITIV STREETEVENTS EDITED TRANSCRIPT BERY.N - Berry Global Group Inc and Glatfelter Corp Entered into Definitive Agreement-M&A Call EVENT DATE/TIME: FEBRUARY 07, 2024 / 1:30PM GMT OVERVIEW: Company Summary REFINITIV STREETEVENTS | www.refinitiv.c

Filed by: Berry Global Group, Inc. Commission File No.: 001-35672 Pursuant to Rule 425 under the Securities Act of 1933 Subject Company: Glatfelter Corporation (Commission File No.: 001-03560) Below is a communication made by Berry Global Group, Inc. on February 7, 2024: REFINITIV STREETEVENTS EDITED TRANSCRIPT BERY.N - Berry Global Group Inc and Glatfelter Corp Entered into Definitive Agreement-M

Filed by: Berry Global Group, Inc.

Filed by: Berry Global Group, Inc. Commission File No.: 001-35672 Pursuant to Rule 425 under the Securities Act of 1933 Subject Company: Glatfelter Corporation (Commission File No.: 001-03560) Below is a communication made by Berry Global Group, Inc. on February 7, 2024: Dear Glatfelter team, I wanted to personally share my excitement about the planned spin-off and combination of Berry’s Health, H

Corporate Headquarters 4350 Congress Street, Suite 600 • Charlotte, NC 28209 U.S.A. • Phone 704-885-2555 • Fax 707-885-2429

Filed by Glatfelter Corporation Pursuant to Rule 425 under the Securities Act of 1933 and Deemed Filed under Rule 14a-12 under the Securities Exchange Act of 1934 Subject Company: Glatfelter Corporation Commission File No.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): February 6, 2024 BERRY GLOBAL GRO

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 6, 2024 BERRY GLOBAL GROUP, INC. (Exact name of registrant as specified in charter) Delaware 1-35672 20-5234618 (State of incorporation) (Commission File Number) (IRS Employe

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 6, 2024

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 6, 2024 Glatfelter Corporation (Exact name of registrant as specified in its charter) Pennsylvania 001-03560 23-0628360 (State or other jurisdiction of incorporation) (Commis

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 7, 2024 BERRY GLOBAL GRO

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 7, 2024 BERRY GLOBAL GROUP, INC. (Exact name of registrant as specified in charter) Delaware 1-35672 20-5234618 (State of incorporation) (Commission File Number) (IRS Employe

Filed by: Berry Global Group, Inc.

Filed by: Berry Global Group, Inc. Commission File No.: 001-35672 Pursuant to Rule 425 under the Securities Act of 1933 Subject Company: Glatfelter Corporation (Commission File No.: 001-03560) Below is a communication made by Berry Global Group, Inc. on February 7, 2024: To All Berry Global Employees, This morning, in connection with our first quarter financial results earnings call, Berry announc

Filed by: Berry Global Group, Inc.

Filed by: Berry Global Group, Inc. Commission File No.: 001-35672 Pursuant to Rule 425 under the Securities Act of 1933 Subject Company: Glatfelter Corporation (Commission File No.: 001-03560) Below is a communication made by Berry Global Group, Inc. on February 7, 2024: 19 Berry’s Health, Hygiene & Specialties Global Nonwovens and Films Business to Combine with Glatfelter Deal Structure Ownership

Filed by: Berry Global Group, Inc.

Filed by: Berry Global Group, Inc. Commission File No.: 001-35672 Pursuant to Rule 425 under the Securities Act of 1933 Subject Company: Glatfelter Corporation (Commission File No.: 001-03560) Below is a communication made by Berry Global Group, Inc. on February 7, 2024: TO: BERY’s Top Investors and Analysts SUBJECT: Berry Announces Spin-Off and Combination of its Health, Hygiene and Specialties G

Combination creates a large-scale global franchise with an industry-leading solution set serving attractive, growing specialty materials markets Establishes leading positions in the high value-added categories within the specialty materials industry,

Exhibit 99.1 News Release Berry Global and Glatfelter Announce Plans for Tax-Free Spin-Off and Merger of Berry’s Health, Hygiene and Specialties Global Nonwovens and Films Business with Glatfelter, Creating a Global Specialty Materials Leader Combination creates a large-scale global franchise with an industry-leading solution set serving attractive, growing specialty materials markets Establishes

Combination creates a large-scale global franchise with an industry-leading solution set serving attractive, growing specialty materials markets Establishes leading positions in the high value-added categories within the specialty materials industry,

Exhibit 99.1 News Release Berry Global and Glatfelter Announce Plans for Tax-Free Spin-Off and Merger of Berry’s Health, Hygiene and Specialties Global Nonwovens and Films Business with Glatfelter, Creating a Global Specialty Materials Leader Combination creates a large-scale global franchise with an industry-leading solution set serving attractive, growing specialty materials markets Establishes

Berry Announces First Quarter 2024 Results

Exhibit 99.1 News Release Berry Announces First Quarter 2024 Results First Quarter Highlights · GAAP: Net sales of $2.9 billion; Operating income of $157 million; Earnings per share of $0.50 · Non-GAAP: Operating EBITDA of $431 million; Adjusted earnings per share of $1.22 · Fiscal 2024 outlook: Reaffirmed adjusted EPS guidance of $7.35 - $7.85 and free cash flow of $800 - $900 million · Announced

February 7, 2024 Creating a Global Leader in Specialty Materials for Attractive End Markets Berry Global and Glatfelter Plans for Tax - Free Spin - Off and Merger of Berry’s HH&S Global Nonwovens and Films Business with Glatfelter

Exhibit 99.2 February 7, 2024 Creating a Global Leader in Specialty Materials for Attractive End Markets Berry Global and Glatfelter Plans for Tax - Free Spin - Off and Merger of Berry’s HH&S Global Nonwovens and Films Business with Glatfelter Curt Begle President, Health, Hygiene & Specialties Division Kevin Kwilinski Chief Executive Officer Thomas Fahnemann Chief Executive Officer Mark Miles Chi

Filed by: Berry Global Group, Inc.

Filed by: Berry Global Group, Inc. Commission File No.: 001-35672 Pursuant to Rule 425 under the Securities Act of 1933 Subject Company: Glatfelter Corporation (Commission File No.: 001-03560) Below is a communication made by Berry Global Group, Inc. on February 7, 2024: 1. Why did Berry decide to separate its Health, Hygiene and Specialties Global Nonwovens and Films business? · In September, Ber

Filed by: Berry Global Group, Inc.

Filed by: Berry Global Group, Inc. Commission File No.: 001-35672 Pursuant to Rule 425 under the Securities Act of 1933 Subject Company: Glatfelter Corporation (Commission File No.: 001-03560) Below is a communication made by Berry Global Group, Inc. on February 7, 2024: Introduction · Thank you all for joining me. · I am very honored to gather the HH&S team today. As you know, in 2023 we began a

Filed by: Berry Global Group, Inc.

Filed by: Berry Global Group, Inc. Commission File No.: 001-35672 Pursuant to Rule 425 under the Securities Act of 1933 Subject Company: Glatfelter Corporation (Commission File No.: 001-03560) Below is a communication made by Berry Global Group, Inc. on February 7, 2024: TO: BERY’s HH&S Customers SUBJECT: Berry Global Announces Spin Off and Combination of its Health, Hygiene and Specialties Global

February 7, 2024 Creating a Global Leader in Specialty Materials for Attractive End Markets Berry Global and Glatfelter Plans for Tax - Free Spin - Off and Merger of Berry’s HH&S Global Nonwovens and Films Business with Glatfelter

Exhibit 99.2 February 7, 2024 Creating a Global Leader in Specialty Materials for Attractive End Markets Berry Global and Glatfelter Plans for Tax - Free Spin - Off and Merger of Berry’s HH&S Global Nonwovens and Films Business with Glatfelter Curt Begle President, Health, Hygiene & Specialties Division Kevin Kwilinski Chief Executive Officer Thomas Fahnemann Chief Executive Officer Mark Miles Chi

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 6, 2024

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 6, 2024 Glatfelter Corporation (Exact name of registrant as specified in its charter) Pennsylvania 001-03560 23-0628360 (State or other jurisdiction of incorporation) (Commis

Filed by: Berry Global Group, Inc.

Filed by: Berry Global Group, Inc. Commission File No.: 001-35672 Pursuant to Rule 425 under the Securities Act of 1933 Subject Company: Glatfelter Corporation (Commission File No.: 001-03560) Below is a communication made by Berry Global Group, Inc. on February 7, 2024: To HH&S Colleagues, As you know, Berry entered a process in 2023 to explore strategic alternatives for our HH&S business, which

Filed by: Berry Global Group, Inc.

Filed by: Berry Global Group, Inc. Commission File No.: 001-35672 Pursuant to Rule 425 under the Securities Act of 1933 Subject Company: Glatfelter Corporation (Commission File No.: 001-03560) Below is a communication made by Berry Global Group, Inc. on February 7, 2024: Cautionary Statement Concerning Forward-Looking Statements Statements in this communication that are not historical, including s

Combination creates a large-scale global franchise with an industry-leading solution set serving attractive, growing specialty materials markets Establishes leading positions in the high value-added categories within the specialty materials industry,

Exhibit 99.1 News Release Berry Global and Glatfelter Announce Plans for Tax-Free Spin-Off and Merger of Berry’s Health, Hygiene and Specialties Global Nonwovens and Films Business with Glatfelter, Creating a Global Specialty Materials Leader Combination creates a large-scale global franchise with an industry-leading solution set serving attractive, growing specialty materials markets Establishes

February 7, 2024 Creating a Global Leader in Specialty Materials for Attractive End Markets Berry Global and Glatfelter Plans for Tax - Free Spin - Off and Merger of Berry’s HH&S Global Nonwovens and Films Business with Glatfelter

Exhibit 99.2 February 7, 2024 Creating a Global Leader in Specialty Materials for Attractive End Markets Berry Global and Glatfelter Plans for Tax - Free Spin - Off and Merger of Berry’s HH&S Global Nonwovens and Films Business with Glatfelter Curt Begle President, Health, Hygiene & Specialties Division Kevin Kwilinski Chief Executive Officer Thomas Fahnemann Chief Executive Officer Mark Miles Chi

Filed by: Berry Global Group, Inc.

Filed by: Berry Global Group, Inc. Commission File No.: 001-35672 Pursuant to Rule 425 under the Securities Act of 1933 Subject Company: Glatfelter Corporation (Commission File No.: 001-03560) Below is a communication made by Berry Global Group, Inc. on February 7, 2024: TO: BERY’s Customers SUBJECT: Berry Global Announces Spin Off and Combination of its Health, Hygiene and Specialties Global Nonw

Filed by: Berry Global Group, Inc.

Filed by: Berry Global Group, Inc. Commission File No.: 001-35672 Pursuant to Rule 425 under the Securities Act of 1933 Subject Company: Glatfelter Corporation (Commission File No.: 001-03560) Below is a communication made by Berry Global Group, Inc. on February 7, 2024: 1. Why did Berry decide to combine its HHNF business with Glatfelter? · In September, Berry announced that we were initiating a

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

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q ☒ Quarterly Report pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the quarterly period ended September 30, 2023 or ☐ Transition Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the transition period from to 4350 Congress Street, Suite 600 Charlotte, North C

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

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 2, 2023 Glatfelter Corporation (Exact name of registrant as specified in its charter) Pennsylvania 001-03560 23-0628360 (State or other jurisdiction of incorporation) (Commis

Form of Change in Control Employment Agreement by and between Glatfelter Corporation and certain employees (form effective as of July 1, 2023). **

EXHIBIT 10.1 CHANGE IN CONTROL EMPLOYMENT AGREEMENT AGREEMENT by and between Glatfelter Corporation (the “Company”), and {Insert Employee’s Name}(the “Employee”), dated as of the {Insert Date}. The Board of Directors of the Company (the “Board”) has determined that it is in the best interests of the Company and its shareholders to ensure that the Company and its subsidiaries will have the continue

Schedule of Change in Control Employment Agreements. **

Exhibit 10.2 SCHEDULE OF CHANGE IN CONTROL EMPLOYMENT AGREEMENTS In accordance with the Instructions to Item 601 of Regulation S-K, the Registrant has omitted filing Change in Control Employment Agreements by and between Glatfelter Corporation and the following employees as exhibits to the Form 10-Q for the quarterly period ended September 30, 2023 because they are substantially identical to the F

GLATFELTER REPORTS THIRD QUARTER 2023 RESULTS Improved Profitability Despite Continued Difficult Market Conditions

Exhibit 99.1 N E W S R E L E A S E Corporate Headquarters 4350 Congress Street Suite 600 Charlotte, NC 28209 U.S.A. www.glatfelter.com For Immediate Release Contacts: Investors: Media: Ramesh Shettigar Eileen L. Beck (717) 225-2746 (717) 225-2793 [email protected] [email protected] GLATFELTER REPORTS THIRD QUARTER 2023 RESULTS Improved Profitability Despite Continued Difficu

GLT / Glatfelter Corporation / CARLSON CAPITAL L P - SC 13D/A Activist Investment

SC 13D/A 1 d266010dsc13da.htm SC 13D/A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 (Amendment No. 3)* Glatfelter Corporation (Name of Issuer) Common Stock, $0.01 par value per share (Title of Class of Securities) 377316104 (CUSIP Number) Carlson Capital, L.P. Attn: Rahim Ibrahim 2100 McKinney Avenue, Suite 1900 Dall

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

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K/A 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 24, 2023 Glatfelter Corporation (Exact name of registrant as specified in its charter) Pennsylvania 001-03560 23-0628360 (State or other jurisdiction of incorporation) (Co

N E W S R E L E A S E Corporate Headquarters 4350 Congress Street, Suite 600 Charlotte, NC 28209 U.S.A. www.glatfelter.com For Immediate Release – Contacts: Investors: Media: Ramesh Shettigar Eileen L. Beck (717) 225-2746 (717) 225-2793 Glatfelter An

N E W S R E L E A S E Corporate Headquarters 4350 Congress Street, Suite 600 Charlotte, NC 28209 U.

N E W S R E L E A S E Corporate Headquarters 4350 Congress Street, Suite 600 Charlotte, NC 28209 U.S.A. www.glatfelter.com For Immediate Release – Contacts: Investors: Media: Ramesh Shettigar Eileen L. Beck (717) 225-2746 (717) 225-2793 Glatfelter An

N E W S R E L E A S E Corporate Headquarters 4350 Congress Street, Suite 600 Charlotte, NC 28209 U.

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

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K (Amendment No. 2) 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 24, 2023 Glatfelter Corporation (Exact name of registrant as specified in its charter) Pennsylvania 001-03560 23-0628360 (State or other jurisdiction of in

GLT / Glatfelter Corporation / CARLSON CAPITAL L P - SC 13D/A Activist Investment

SC 13D/A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 (Amendment No. 2)* Glatfelter Corporation (Name of Issuer) Common Stock, $0.01 par value per share (Title of Class of Securities) 377316104 (CUSIP Number) Carlson Capital, L.P. Attn: Rahim Ibrahim 2100 McKinney Avenue, Suite 1900 Dallas, TX 75201 (214) 932-9600 (N

For Immediate Release Investors: Media: Ramesh Shettigar Eileen L. Beck (717) 225-2746 (717) 225-2793 [email protected] [email protected] GLATFELTER ANNOUNCES SALE OF OBER-SCHMITTEN, GERMANY FACILITY ~ Ostrest GmbH to assume ow

For Immediate Release Investors: Media: Ramesh Shettigar Eileen L. Beck (717) 225-2746 (717) 225-2793 [email protected] [email protected] GLATFELTER ANNOUNCES SALE OF OBER-SCHMITTEN, GERMANY FACILITY ~ Ostrest GmbH to assume ownership effective August 15, 2023 with site to remain fully operational ~ CHARLOTTE, North Carolina – August 15, 2023: Glatfelter Corporation (NYSE: G

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K/A (Amendment No. 2) CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K/A (Amendment No. 2) 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 31, 2023 Glatfelter Corporation (Exact name of registrant as specified in its charter) Pennsylvania 001-03560 23-0628360 (State or other jurisdiction of incorp

Form of Performance Share Award Certificate (form effective as of May 5, 2023)**

Exhibit 10.3 GLATFELTER CORPORATION Performance Share Award Certificate Award Number: -PSA-01 Award Date: Award Type: Performance Share Units Number of Performance Share Units Granted at Target: Performance Period: Vesting Date: Method of Payment: If vested and earned, this Performance Share Award will be paid in shares of Common Stock (except as otherwise set forth herein). THIS CERTIFIES THAT Gl

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): August 3, 2023 Glatfelter Corporation (Exact name of registrant as specified in its charter) Pennsylvania 001-03560 23-0628360 (State or other jurisdiction of incorporation) (Commissi

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

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): May 31, 2023 Glatfelter Corporation (Exact name of registrant as specified in its charter) Pennsylvania 001-03560 23-0628360 (State or other jurisdiction of incorp

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

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q ☒ Quarterly Report pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the quarterly period ended June 30, 2023 or ☐ Transition Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the transition period from to 4350 Congress Street, Suite 600 Charlotte, North Caroli

Form of Restricted Stock Unit Award Certificate (form effective as of May 5, 2023)**

EXHIBIT 10.2 Glatfelter Corporation Restricted Stock Unit Award Certificate Award Number: -RSU-01 Award Date: Number of Restricted Stock Units: Vesting Schedule: Vesting Date RSUs Vesting THIS CERTIFIES THAT Glatfelter Corporation, a Pennsylvania corporation (the “Company”) has on the Award Date specified above granted to: Name (the “Participant”) an award (the “Award”) to receive that number of R

GLATFELTER REPORTS SECOND QUARTER 2023 RESULTS Business Fundamentals Remain Sound Despite Persistent Market and Economic Headwinds

Exhibit 99.1 N E W S R E L E A S E Corporate Headquarters 4350 Congress Street Suite 600 Charlotte, NC 28209 U.S.A. www.glatfelter.com For Immediate Release Contacts: Investors: Media: Ramesh Shettigar Eileen L. Beck (717) 225-2746 (717) 225-2793 [email protected] [email protected] GLATFELTER REPORTS SECOND QUARTER 2023 RESULTS Business Fundamentals Remain Sound Despite Pers

Form of Non-Employee Director Restricted Stock Unit Award Certificate (form effective as of May 5, 2023)**

GLATFELTER CORPORATION Non-Employee Director Restricted Stock Unit Award Certificate Award Number: Award Date: Number of Restricted Stock Units: Final Vesting Date: THIS CERTIFIES THAT Glatfelter Corporation, a Pennsylvania corporation (the “Company”) has on the Award Date specified above granted to: Name (the “Participant”) an award (the “Award”) to receive that number of Restricted Stock Units (

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

11-K 1 form11-kx12312022.htm 11-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 11-K ☒ Annual report pursuant to Section 15(d) of the Securities Exchange Act of 1934 For the fiscal year ended December 31, 2022 or ☐ Transition Report Pursuant to Section 15(d) of the Securities Exchange Act of 1934 For the transition period from to Commission file number 1-3560 A.Full

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 11-K/A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 11-K/A ☒ Annual report pursuant to Section 15(d) of the Securities Exchange Act of 1934 For the fiscal year ended December 31, 2022 or ☐ Transition Report Pursuant to Section 15(d) of the Securities Exchange Act of 1934 For the transition period from to Commission file number 1-3560 A.Full title of the plan and the addres

For Immediate Release Investors: Media: Ramesh Shettigar Eileen L. Beck (717) 225-2746 (717) 225-2793 [email protected] [email protected] GLATFELTER ANNOUNCES CLOSURE OF OBER-SCHMITTEN, GERMANY FACILITY ~ Action taken as part o

projectospreypressreleas For Immediate Release Investors: Media: Ramesh Shettigar Eileen L.

Regulation FD Disclosure, Financial Statements and Exhibits, Costs Associated with Exit or Disposal Activities

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 31, 2023 Glatfelter Corporation (Exact name of registrant as specified in its charter) Pennsylvania 001-03560 23-0628360 (State or other jurisdiction of incorporation) (Commission

Power of Attorney (included on signature pages hereto)

Registration No. 333- UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM S-8 REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933 Glatfelter Corporation (Exact name of registrant as specified in its charter) Pennsylvania 23-0628360 (State or other jurisdiction of incorporation or organization) (I.R.S. Employer Identification No.) 4350 Congress Street, Suite 600 Charlot

Glatfelter Corporation 2022 Long-Term Incentive Plan, as Amended and Restated

EX-99.1 EXHIBIT 99.1 GLATFELTER CORPORATION 2022 LONG-TERM INCENTIVE PLAN (As Amended and Restated, effective May 5, 2023) 1. PURPOSE. This 2022 Long-Term Incentive Plan, as amended and restated (the “Plan”) has been established by Glatfelter Corporation (the “Company”) to reward Eligible Individuals by means of appropriate incentives for achieving long-range Company goals; provide incentive compe

Filing Fee Table.

EXHIBIT 107 Calculation of Filing Fee Table Form S-8 (Form Type) Glatfelter Corporation (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered Securities Security Type Security Class Title(1) Fee Calculation or Carry Forward Rule Amount Registered (1) Proposed Maximum Offering Price Per Unit (2) Proposed Maximum Aggregate Offering Price (2) Fee Rate Amount of Registration Fee Carry Forward Form Type Carry Forward File Number Carry Forward Initial Effective Date Filing Fee Previously Paid in Connection with Unsold Securities to be Carried Forward Newly Registered Securities Fees to be Paid Equity Common Stock, par value $0.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of Earliest Event Reported): May 5, 2023 Glatfelter Corporatio

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 5, 2023 Glatfelter Corporation (Exact name of registrant as specified in its charter) Pennsylvania 001-03560 23-0628360 (State or other jurisdiction of incorporation (Commission F

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 4, 2023 Glatfelter Corporation (Exact name of registrant as specified in its charter) Pennsylvania 001-03560 23-0628360 (State or other jurisdiction of incorporation) (Commission

GLATFELTER REPORTS FIRST QUARTER 2023 RESULTS ~ Improved financial performance driven by progress on key turnaround actions ~

Exhibit 99.1 N E W S R E L E A S E Corporate Headquarters 4350 Congress Street Suite 600 Charlotte, NC 28209 U.S.A. www.glatfelter.com For Immediate Release Contacts: Investors: Media: Ramesh Shettigar Eileen L. Beck (717) 225-2746 (717) 225-2793 [email protected] [email protected] GLATFELTER REPORTS FIRST QUARTER 2023 RESULTS ~ Improved financial performance driven by progr

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

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q ☒ Quarterly Report pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the quarterly period ended March 31, 2023 or ☐ Transition Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the transition period from to 4350 Congress Street, Suite 600 Charlotte, North Carol

Offer Letter to Boris Illetschko as Chief Operating Officer

borisexecutedofferlette

Glatfelter Appoints New Chief Operating Officer ~ Streamlines Senior Leadership to Accelerate Business Performance ~

Exhibit 99.1 NEWS RELEASE Corporate Headquarters 4350 Congress Street, Suite 600 Charlotte, NC 28209 U.S.A. www.glatfelter.com Contacts: Investors: Media: Ramesh Shettigar Eileen L. Beck (717) 225-2746 (717) 225-2793 Glatfelter Appoints New Chief Operating Officer ~ Streamlines Senior Leadership to Accelerate Business Performance ~ CHARLOTTE, North Carolina – April 5, 2023: Glatfelter Corporation

Glatfelter Corporation Amended and Restated By-Laws (Amended and Restated as of April 5, 2023)

Exhibit 3.1 GLATFELTER CORPORATION (a Pennsylvania corporation) AMENDED AND RESTATED BYLAWS (Amended and Restated as of April 5, 2023) TABLE OF CONTENTS Page ARTICLE I MEETINGS OF SHAREHOLDERS AND RECORD DATE 1 1.1 ANNUAL MEETING 1 1.2 SPECIAL MEETINGS 1 1.3 PLACE OF SHAREHOLDERS’ MEETINGS 1 1.4 NOTICE 2 1.5 QUORUM 2 1.6 RECORD DATES 2 1.7 VOTING 2 1.8 CONSIDERATION OF DIRECTOR NOMINATIONS AND BUS

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 4, 2023 Glatfelter Corporat

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 4, 2023 Glatfelter Corporation (Exact Name of Registrant as Specified in Its Charter) 001-03560 (Commission File Number) Pennsylvania 23-0628360 (State or Other Jurisdiction of

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.)

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 Defini

GLT / Glatfelter Corporation / CARLSON CAPITAL L P - SC 13D/A Activist Investment

SC 13D/A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 (Amendment No. 1)* Glatfelter Corporation (Name of Issuer) Common Stock, $0.01 par value per share (Title of Class of Securities) 377316104 (CUSIP Number) Carlson Capital, L.P. Attn: Ewelina Z. Post 2100 McKinney Avenue, Suite 1900 Dallas, TX 75201 (214) 932-9600

Term Loan Credit Agreement with Angelo, Gordon & Co., L.P.

Exhibit 10.2 Execution Version €250,000,000 TERM LOAN FACILITY TERM LOAN CREDIT AGREEMENT by and among GLATFELTER CORPORATION, GLATFELTER LUXEMBOURG S.À R.L, THE GUARANTORS PARTY HERETO, and THE LENDERS PARTY HERETO, as Lenders and ALTER DOMUS (US) LLC, as Administrative Agent Dated as of March 30, 2023 TABLE OF CONTENTS PAGE 1. Certain Definitions 1 1.1 Certain Definitions 1 1.2 Construction 37 1

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 31, 2023 (March 30, 2023) G

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 31, 2023 (March 30, 2023) Glatfelter Corporation (Exact name of registrant as specified in its charter) Pennsylvania 001-03560 23-0628360 (State or other jurisdiction of incorpo

Second Amendment to Fourth Amended and Restated Credit Agreement

Exhibit 10.1 EXECUTION VERSION SECOND AMENDMENT TO FOURTH AMENDED AND RESTATED CREDIT AGREEMENT THIS SECOND AMENDMENT TO FOURTH AMENDED AND RESTATED CREDIT AGREEMENT (the “Amendment”), dated as of March 30, 2023, by and among GLATFELTER CORPORATION, a Pennsylvania corporation (the “Company”), AND CERTAIN OF ITS SUBSIDIARIES IDENTIFIED ON THE SIGNATURE PAGES HERETO AS BORROWERS (each a “Borrower” a

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

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-K ☑ Annual report pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the fiscal year ended December 31, 2022 or ☐ Transition Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the transition period from to 4350 Congress Street, Suite 600 Charlotte

Subsidiaries of Glatfelter Corporation, filed herewith.

Exhibit 21.1 Significant Subsidiaries Glatfelter Corporation Name Jurisdiction Glatfelter Corporation (parent) U.S. (Pennsylvania) Glatfelter Advanced Materials N.A., LLC U.S. (Delaware) Glatfelter Caerphilly, Ltd. United Kingdom Glatfelter Costa Rica, S.r.l. Costa Rica Glatfelter Composite Fibers NA, Inc. U.S. (Delaware) Glatfelter Dresden GmbH Germany Glatfelter Falkenhagen GmbH Germany Glatfelt

Exhibit 4.4

EX-4.4 2 ex-44x123122.htm EX-4.4 Exhibit 4.4 DESCRIPTION OF THE REGISTRANT’S SECURITIES REGISTERED PURSUANT TO SECTION 12 OF THE SECURITIES EXCHANGE ACT OF 1934 The following is a description of the common stock of Glatfelter Corporation (the “Company”, “we” or “our”), which is the only security of the Company registered pursuant to Section 12 of the Securities Exchange Act of 1934, as amended (th

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

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, 2023 Glatfelter Corporation (Exact name of registrant as specified in its charter) Pennsylvania 001-03560 23-0628360 (State or other jurisdiction of incorporation) (Commi

Commitment Letter for Term Loan with Angelo, Gordon & Co., L.P.

Exhibit 10.1   Execution Version   ANGELO, GORDON & CO., L.P. 245 Park Avenue New York, NY 10167   February 20, 2023   Glatfelter Corporation 4350 Congress Street, Suite 600 Charlotte, NC 28209 Attention: Ramesh Shettigar, Senior Vice President, Chief Financial Officer and Treasurer   Glatfelter Luxembourg S.à r.l C/o Glatfelter Corporation 4350 Congress Street, Suite 600 Charlotte, NC 28209 Atten

Glatfelter Reports Fourth Quarter and Full Year Results Including Progress Toward Executing Turnaround Strategy

Exhibit 99.1 N E W S R E L E A S E Corporate Headquarters 4350 Congress Street Suite 600 Charlotte, NC 28209 U.S.A. www.glatfelter.com For Immediate Release Contacts: Investors: Media: Ramesh Shettigar Eileen L. Beck (717) 225-2746 (717) 225-2793 [email protected] [email protected] Glatfelter Reports Fourth Quarter and Full Year Results Including Progress Toward Executing Tu

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, 2023 (February 20, 2

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of Earliest Event Reported): February 21, 2023 (February 20, 2023) Glatfelter Corporation (Exact name of registrant as specified in its charter) Pennsylvania 001-03560 23-0628360 (State or other jurisdiction of i

GLT / Glatfelter Corp / DIMENSIONAL FUND ADVISORS LP - SEC SCHEDULE 13G Passive Investment

SC 13G/A 1 SEC13GFiling.htm SEC SCHEDULE 13G UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 2 )* Glatfelter Corp (Name of Issuer) Common Stock (Title of Class of Securities) 377320106 (CUSIP Number) December 30, 2022 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to des

Glatfelter Corporation Amended and Restated By-Laws (Amended and Restated as of December 2, 2022)

EX-3.1 2 glt-amendedandrestatedby.htm EX-3.1 GLATFELTER CORPORATION (a Pennsylvania corporation) AMENDED AND RESTATED BYLAWS (Amended and Restated as of December 2, 2022) TABLE OF CONTENTS Page -i- ARTICLE I MEETINGS OF SHAREHOLDERS AND RECORD DATE ............................ 1 1.1 ANNUAL MEETING ............................................................................................ 1 1.2 SP

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

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): December 2, 2022 Glatfelter Corporation (Exact name of registrant as specified in its charter) Pennsylvania 001-03560 23-0628360 (State or other jurisdiction of in

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 2, 2022 Glatfelter Corporation (Exact name of registrant as specified in its charter) Pennsylvania 001-03560 23-0628360 (State or other jurisdiction of incorporation) (Commis

Amended and Restated Bylaws of the Company, as amended dated December 2, 2022.

GLATFELTER CORPORATION (a Pennsylvania corporation) AMENDED AND RESTATED BYLAWS (Amended and Restated as of December 2, 2022) TABLE OF CONTENTS Page -i- ARTICLE I MEETINGS OF SHAREHOLDERS AND RECORD DATE .

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 11, 2022 Glatfelter Corp

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 11, 2022 Glatfelter Corporation (Exact name of registrant as specified in its charter) Pennsylvania 001-03560 23-0628360 (State or other jurisdiction of incorporation) (Commi

Glatfelter Corporation Amended and Restated Articles of Incorporation

EX-3.2 Exhibit 3.2 GLATFELTER CORPORATIONs AMENDED AND RESTATED ARTICLES OF INCORPORATION ARTICLE I The name of the corporation is GLATFELTER CORPORATION ARTICLE II The name of the Corporation’s Commercial Registered Office Provider and the county of venue is Corporation Service Company, Dauphin County. ARTICLE III The purpose or purposes for which the corporation is organized are to acquire by pu

Amended and Restated Bylaws of Glatfelter Corporation, as adopted on November 11, 2022.

EX-3.1 Exhibit 3.1 GLATFELTER CORPORATION (a Pennsylvania corporation) AMENDED AND RESTATED BYLAWS (Amended and Restated as of November 11, 2022) TABLE OF CONTENTS Page ARTICLE I MEETINGS OF SHAREHOLDERS AND RECORD DATE 1 1.1 ANNUAL MEETING 1 1.2 SPECIAL MEETINGS 1 1.3 PLACE OF SHAREHOLDERS’ MEETINGS 1 1.4 NOTICE 2 1.5 QUORUM 2 1.6 RECORD DATES 2 1.7 VOTING 2 1.8 CONSIDERATION OF DIRECTOR NOMINATI

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): November 11, 2022 Glatfelter Corporation (Exact name of registrant as specified in its charter) Pennsylvania 001-03560 23-0628360 (State or other jurisdiction of incorporation) (Commi

Glatfelter Reports Third Quarter Results Including Turnaround Strategy To Drive Improved Profitability Under New CEO

Exhibit 99.1 N E W S R E L E A S E Corporate Headquarters 4350 Congress Street Suite 600 Charlotte, NC 28209 U.S.A. www.glatfelter.com For Immediate Release Contacts: Investors: Media: Ramesh Shettigar Eileen L. Beck (717) 225-2746 (717) 225-2793 [email protected] [email protected] Glatfelter Reports Third Quarter Results Including Turnaround Strategy To Drive Improved Profi

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

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 3, 2022 Glatfelter Corporation (Exact name of registrant as specified in its charter) Pennsylvania 001-03560 23-0628360 (State or other jurisdiction of incorporation) (Commis

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

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q ? Quarterly Report pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the quarterly period ended September 30, 2022 or ? Transition Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the transition period from to 4350 Congress Street, Suite 600 Charlotte, North C

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.)

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 ? 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)) ? Defini