Jill L. Urey - 04 Nov 2025 Form 4 Insider Report for Magnera Corp (MAGN)

Role: EVP, GC & Corp Sec
Signature: /s/ Laura A. Jones, attorney-in-fact for Jill Urey
Issuer symbol: MAGN
Transactions as of: 04 Nov 2025
Net transactions value: +$9,741
Form type: 4
Filing time: 06 Nov 2025, 15:48:00 UTC
Previous filing: 26 Feb 2025
Next filing: 18 Nov 2025
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
Urey Jill L.	EVP, GC & Corp Sec	9335 HARRIS CORNERS PKWY, SUITE 300, CHARLOTTE	/s/ Laura A. Jones, attorney-in-fact for Jill Urey	06 Nov 2025	0001789456

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	MAGN	Common Stock, Par Value $.01	Options Exercise	$13,503	+1,583	+56%	$8.53	4,388	04 Nov 2025	Direct
transaction	MAGN	Common Stock, Par Value $.01	Tax liability	$3,762	-441	-10%	$8.53	3,947	04 Nov 2025	Direct	F1
holding	MAGN	Common Stock, Par Value $.01						32	04 Nov 2025	Held in 401(K) Plan

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Underlying Class	Amount	Exercise Price	Ownership	Footnotes
transaction	MAGN	Restricted Stock Units	Options Exercise	$0	-1,583	-33%	$0.000000	3,167	04 Nov 2025	Common Stock, Par Value $.01	1,583		Direct	F2, F3

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	Represents shares being withheld to satisfy tax obligations.
F2	Not applicable to this transaction. RSUs have no value until all restrictions lapse on the final vesting date.
F3	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.