X0508 4 2025-11-04 0000041719 Magnera Corp MAGN 0001559276 Begle Curt 9335 HARRIS CORNERS PKWY SUITE 300 CHARLOTTE NC 28269 1 1 President & CEO 0 Common Stock, Par Value $.01 2025-11-04 4 M 0 18208 8.53 A 18208 D Common Stock, Par Value $.01 3083 I The Curtis L. Begle 2022 GRAT Common Stock, Par Value $.01 44341 I The Curtis L. Begle Living Trust Common Stock, Par Value $.01 2576 I The Crue Meisler Begle Trust Restricted Stock Units 2025-11-04 4 M 0 18208 0 D 2025-11-04 2027-11-04 Common Stock, Par Value $.01 18208 36423 D Represents shares of Issuer common stock held by The Curtis L. Begle 2022 Grantor Retained Annuity Trust, of which The Crue Meisler Begle Trust is beneficiary. The reporting person serves as trustee of The Curtis Begle GRAT 2022. Represents shares of Issuer common stock held by The Curtis L. Begle Living Trust, of which the reporting person is beneficiary. The reporting person serves as trustee of The Curtis L. Begle Living Trust. Represents shares of Issuer common stock held by The Crue Meisler Begle Trust, of which the reporting person's minor child is beneficiary. The reporting person serves as trustee of The Crue Meisler Begle Trust. Not applicable to this transaction. RSUs have no value until all restrictions lapse on the final vesting date. This FY2025 Annual RSU grant vests one-third 11/4/2025, one-third 11/4/2026 and one-third 11/4/2027. This grant vests in full, and all restrictions lapse, three years from the Grant Date. /s/ Laura A. Jones, attorney-in-fact for Curt Begle 2025-11-06