X0202 SCHEDULE 13G/A 0001569241 XXXXXXXX LIVE 1 Common Stock 03/31/2026 0000041719 Magnera Corporation 55939A107 9335 Harris Corners Pkwy, Ste 300, Charlotte, NC 28269 Rule 13d-1(b) Newtyn Management, LLC NY 2760000.00 0.00 2760000.00 0.00 2760000.00 N 7.7 IA See Item 2 for additional information. Magnera Corporation 9335 Harris Corners Pkwy, Ste 300, Charlotte, North Carolina 28269 This report on Schedule 13G is being filed by Newtyn Management, LLC, a New York limited liability company (the "Reporting Person"). The Reporting Person is the investment manager to Newtyn TE Partners, LP, a Delaware limited partnership ("NTE"), and Newtyn Partners, LP, a Delaware limited partnership ("NP"). As of March 31, 2026, NTE held 1,757,147 shares of common stock (the "Common Stock") of Magnera Corporation (the "Issuer") and NP held 1,002,853 shares of Common Stock of the Issuer. The Reporting Person, as the investment manager to NTE and NP, may be deemed to beneficially own these securities. Accordingly, as of March 31, 2026, the Reporting Person may be deemed to beneficially own the 2,760,000 shares of Common Stock of the Issuer held in the aggregate by NTE and NP. Beneficial ownership percentages are based upon approximately 35.9 million shares of Common Stock issued and outstanding as of February 5, 2026, based on information reported by the Issuer in its Quarterly Report on Form 10-Q filed with the Securities and Exchange Commission on February 5, 2026. The address for the Reporting Person is 60 East 42nd Street, 12th Floor, New York, NY 10165. The Reporting Person is organized under the laws of the State of New York. N IA 2,760,000 7.7 % 2,760,000.00 0.00 2,760,000.00 0.00 Y Y Y Y Y N By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were acquired and are held in the ordinary course of business and were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect, other than activities solely in connection with a nomination under ?? 240.14a-11. Newtyn Management, LLC /s/ Eugene Dozortsev 05/15/2026