Morgan Stanley units disclose >5% stake in Magnera (MAGN) — Schedule 13G/A

Rhea-AI Filing Summary

Morgan Stanley files an amendment reporting beneficial ownership in Magnera Corp Common Stock. The filing shows 1,892,151 shares reported for Morgan Stanley (representing 5.3%) and 1,875,207 shares for Morgan Stanley Capital Services LLC (representing 5.2%), as provided on the cover pages. The filing is signed by an authorized signatory on 05/12/2026.

Insights

Institutional Ownership Analyst

Large broker-dealer ownership disclosed; position sizes are public filings, not transactional guidance.

The amendment lists 1,892,151 shares (5.3%) for Morgan Stanley and 1,875,207 shares (5.2%) for Morgan Stanley Capital Services LLC as beneficially owned. These figures reflect shared voting and dispositive powers disclosed on the cover pages.

The filing also references the MS Reporting Units aggregation rule from Release No. 34-39538; timing and cash-flow treatment are not included in the excerpt.

Securities Compliance Counsel

Amendment is procedural disclosure under beneficial ownership rules with standard joint-filing exhibits.

The schedule is a joint filing that includes Exhibit 99.1 (Joint Filing Agreement) and Exhibit 99.2 (Item 7 subsidiary information) and cites the Release that aggregates MS Reporting Units. Signatures are dated 05/12/2026.

This is a disclosure of holdings; no corrective allegation or transaction detail is provided in the excerpt.

Key Figures

CUSIP: 55939A107 Morgan Stanley shares reported: 1,892,151 shares Morgan Stanley ownership %: 5.3% +3 more

6 metrics

CUSIP 55939A107 Magnera Corp Common Stock

Morgan Stanley shares reported 1,892,151 shares reported beneficially owned, <date>05/12/2026</date>

Morgan Stanley ownership % 5.3% Percent of class as stated in Item 4

Morgan Stanley Capital Services shares reported 1,875,207 shares reported beneficially owned, <date>05/12/2026</date>

Morgan Stanley Capital Services ownership % 5.2% Percent of class as stated on the cover page

Signature date 05/12/2026 Authorized Signatory signatures

Key Terms

Schedule 13G/A, MS Reporting Units, Shared Dispositive Power

3 terms

Schedule 13G/A regulatory

"Title lines and Item 1 identify this filing type"

A Schedule 13G/A is an amended public filing with the U.S. securities regulator that updates a previous Schedule 13G, disclosing when an individual or group holds a substantial (typically over 5%) stake in a company and is claiming a passive, non‑controlling intent. Investors monitor these updates because rising or falling holdings can signal changing confidence, potential future moves, or shifts in voting power — like watching a public ledger where large shareholders quietly adjust their positions.

MS Reporting Units other

"This filing reflects the securities beneficially owned by certain operating units (the "MS Reporting Units")"

Shared Dispositive Power regulatory

"Cover-page lines list 'Shared Dispositive Power 1,892,151.00' for Morgan Stanley"

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13G

UNDER THE SECURITIES EXCHANGE ACT OF 1934

(Amendment No. 1)

Magnera Corp

(Name of Issuer)

Common Stock

(Title of Class of Securities)

55939A107

(CUSIP Number)

03/31/2026

(Date of Event Which Requires Filing of this Statement)

Check the appropriate box to designate the rule pursuant to which this Schedule is filed:

Rule 13d-1(b)

Rule 13d-1(c)

Rule 13d-1(d)

schemaVersion:

SCHEDULE 13G

CUSIP Number(s): 55939A107

1

Names of Reporting Persons

Morgan Stanley

2

Check the appropriate box if a member of a Group (see instructions)

(a)
(b)

3

Sec Use Only

4

Citizenship or Place of Organization

DELAWARE

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 0.00
6	Shared Voting Power 1,888,873.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 1,892,151.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

1,892,151.00

10

Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)

11

Percent of class represented by amount in row (9)

5.3 %

12

Type of Reporting Person (See Instructions)

HC, CO

SCHEDULE 13G

CUSIP Number(s): 55939A107

1

Names of Reporting Persons

Morgan Stanley Capital Services LLC

2

Check the appropriate box if a member of a Group (see instructions)

(a)
(b)

3

Sec Use Only

4

Citizenship or Place of Organization

DELAWARE

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 0.00
6	Shared Voting Power 1,875,207.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 1,875,207.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

1,875,207.00

10

Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)

11

Percent of class represented by amount in row (9)

5.2 %

12

Type of Reporting Person (See Instructions)

BD, CO

SCHEDULE 13G

Item 1.
(a)	Name of issuer: Magnera Corp
(b)	Address of issuer's principal executive offices: 9335 HARRIS CORNERS PKWY, SUITE 300, CHARLOTTE, NC, 28269
Item 2.
(a)	Name of person filing: 1: Morgan Stanley 2: Morgan Stanley Capital Services LLC
(b)	Address or principal business office or, if none, residence: 1: 1585 Broadway, New York, NY 10036 ;2: 1585 Broadway, New York, NY 10036
(c)	Citizenship: 1: Delaware 2: Delaware
(d)	Title of class of securities: Common Stock
(e)	CUSIP No.: 55939A107
Item 3.	If this statement is filed pursuant to §§ 240.13d-1(b) or 240.13d-2(b) or (c), check whether the person filing is a:
(a)	Broker or dealer registered under section 15 of the Act (15 U.S.C. 78o);
(b)	Bank as defined in section 3(a)(6) of the Act (15 U.S.C. 78c);
(c)	Insurance company as defined in section 3(a)(19) of the Act (15 U.S.C. 78c);
(d)	Investment company registered under section 8 of the Investment Company Act of 1940 (15 U.S.C. 80a-8);
(e)	An investment adviser in accordance with § 240.13d-1(b)(1)(ii)(E);
(f)	An employee benefit plan or endowment fund in accordance with § 240.13d-1(b)(1)(ii)(F);
(g)	A parent holding company or control person in accordance with § 240.13d-1(b)(1)(ii)(G);
(h)	A savings associations as defined in Section 3(b) of the Federal Deposit Insurance Act (12 U.S.C. 1813);
(i)	A church plan that is excluded from the definition of an investment company under section 3(c)(14) of the Investment Company Act of 1940 (15 U.S.C. 80a-3);
(j)	A non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J). If filing as a non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J), please specify the type of institution:
(k)	Group, in accordance with Rule 240.13d-1(b)(1)(ii)(K).
Item 4.	Ownership
(a)	Amount beneficially owned: See the response(s) to Item 9 on the attached cover page(s).
(b)	Percent of class: 5.3 %
(c)	Number of shares as to which the person has:
	(i) Sole power to vote or to direct the vote: See the response(s) to Item 5 on the attached cover page(s).
	(ii) Shared power to vote or to direct the vote: See the response(s) to Item 6 on the attached cover page(s).
	(iii) Sole power to dispose or to direct the disposition of: See the response(s) to Item 7 on the attached cover page(s).
	(iv) Shared power to dispose or to direct the disposition of: See the response(s) to Item 8 on the attached cover page(s).
Item 5.	Ownership of 5 Percent or Less of a Class.
	Not Applicable
Item 6.	Ownership of more than 5 Percent on Behalf of Another Person.
	Not Applicable
Item 7.	Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on by the Parent Holding Company or Control Person.
	If a parent holding company has filed this schedule, pursuant to Rule 13d-1(b)(ii)(G), so indicate under Item 3(g) and attach an exhibit stating the identity and the Item 3 classification of the relevant subsidiary. If a parent holding company has filed this schedule pursuant to Rule 13d-1(c) or Rule 13d-1(d), attach an exhibit stating the identification of the relevant subsidiary. See Exhibit 99.2
Item 8.	Identification and Classification of Members of the Group.
	Not Applicable
Item 9.	Notice of Dissolution of Group.
	Not Applicable

Item 10.

Certifications:

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. * In Accordance with the Securities and Exchange Commission Release No. 34-39538 (January 12, 1998) (the "Release"), this filing reflects the securities beneficially owned, or that may be deemed to be beneficially owned, by certain operating units (collectively, the "MS Reporting Units") of Morgan Stanley and its subsidiaries and affiliates (collectively, "MS"). This filing does not reflect securities, if any, beneficially owned by any operating units of MS whose ownership of securities is disaggregated from that of the MS Reporting Units in accordance with the Release.

SIGNATURE

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

Morgan Stanley

Signature:	Claire Gordon
Name/Title:	Authorized Signatory, Morgan Stanley
Date:	05/12/2026

Morgan Stanley Capital Services LLC

Signature:	Claire Gordon
Name/Title:	Authorized Signatory, Morgan Stanley Capital Services LLC
Date:	05/12/2026

Exhibit Information

EXHIBIT NO. EXHIBITS ------------------ ------------------------------------ 99.1 Joint Filing Agreement 99.2 Item 7 Information * Attention. Intentional misstatements or omissions of fact constitute federal criminal violations (see 18 U.S.C. 1001).

FAQ

What stake does Morgan Stanley report in MAGN?

Morgan Stanley reports beneficial ownership of 1,892,151 shares (5.3%). The amount and 5.3% figure appear on the cover page and Item 4 as filed in the amendment.

How many shares does Morgan Stanley Capital Services LLC report in MAGN?

Morgan Stanley Capital Services LLC reports 1,875,207 shares (5.2%). That amount and the 5.2% percent are shown on the filing's cover-page ownership lines.

Who signed the Schedule 13G/A amendment for MAGN?

Claire Gordon signed as Authorized Signatory for both Morgan Stanley and Morgan Stanley Capital Services LLC on 05/12/2026, per the signature block in the amendment.

Does the filing aggregate Morgan Stanley units under a single reporting group?

Yes. The filing states it reflects securities beneficially owned by certain operating units (the MS Reporting Units) in accordance with Release No. 34-39538, per the amendment language.