X0508 4 2025-06-04 0000041719 Magnera Corp MAGN 0001580949 Curless Michael S 9335 HARRIS CORNERS PKWY SUITE 300 CHARLOTTE NC 28269 1 0 Common Stock, Par Value $.01 2025-06-04 4 P 0 10000 12.2939 A 10000 I The Michael S Curless Trust The price reported is the weighted average of shares purchased on June 4, 2025. The reporting person undertakes, upon request by the staff of the Securities and Exchange Commission, the issuer, or a security holder of the issuer, to provide full information regarding the number of shares purchased at each separate price. Represents shares of Issuer common stock held by The Michael S Curless Trust, of which the reporting person is the trustee, grantor, and beneficiary. /s/ Laura A. Jones, attorney-in-fact for Michael Curless 2025-06-05