As of November 7, 2026, Magnera Corp is a publicly traded company (NYSE: MAGN); its largest reported holder is Madison Avenue Partners, LP, with 8% on Schedule 13G/A of November 14, 2025, then Newtyn Management, LLC (7.7%). The largest insider holding is Curt Begle, the chief executive and president, with 86,417 shares (0.24% of shares outstanding), per Form 4 of November 6, 2026 (Schedule 13G/A, November 14, 2025).
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Is Magnera Corp a real, registered company?
- Magnera Corp files with the SEC under CIK 41719 (its SEC filings).
- Its shares are listed under the ticker MAGN on NYSE (SEC company record).
- Incorporated in Pennsylvania; business address in Charlotte, North Carolina, as its SEC filings state.
- Court and bankruptcy records: see Before you sign or pay below.
Before you sign or pay
- Court and bankruptcy: No federal court case or bankruptcy filing found under Magnera Corp in our court records and SEC 8-K records (as of 2026-11-07).
- Ownership: 5%+ holders are reported on Schedule 13D or 13G; the latest names Newtyn Management, LLC (filed 2026-05-15).
Who are Magnera Corp's owners and officers?
Magnera Corp: incorporated in Pennsylvania; business address in Charlotte, North Carolina; industry Paper Mills (Schedule 13G/A, 2026-08-12).
| Report | Holder | Share |
|---|---|---|
| Schedule 13G/A, 2026-08-12 | Morgan Stanley | 3.9% |
| Schedule 13G/A, 2026-08-05 | Cetus Capital Vi, L.P. | 4.36% |
| Schedule 13G/A, 2026-05-15 | Newtyn Management, LLC | 7.7% |
| Schedule 13G/A, 2026-05-15 | Madison Avenue International LP | 4.4% |
| Schedule 13G/A, 2026-05-12 | Cetus Capital Vi, L.P. | 6.26% |
| Schedule 13G/A, 2026-05-12 | Morgan Stanley | 5.3% |
| Schedule 13G/A, 2026-03-27 | The Vanguard Group | 0% |
| Schedule 13G/A, 2026-02-17 | Madison Avenue International LP | 5% |
| Schedule 13G, 2026-02-13 | Ancora Advisors LLC | 1.5% |
| Schedule 13G, 2026-02-12 | Morgan Stanley | 6.5% |
| Schedule 13G/A, 2025-11-14 | Madison Avenue Partners, LP | 8% |
| Schedule 13G/A, 2025-11-07 | Morgan Stanley | 4.4% |
Questions about who owns Magnera Corp
Who owns Magnera Corp?
On this page, 2 holders' latest ownership filings report 5% or more of Magnera Corp: Madison Avenue Partners, LP (8%, Schedule 13G/A, filed 2025-11-14) and Newtyn Management, LLC (7.7%, Schedule 13G/A, filed 2026-05-15).
Who are the largest shareholders of Magnera Corp?
By the share each holder's latest filing reports, the largest holders of Magnera Corp on this page are Madison Avenue Partners, LP (8%) and Newtyn Management, LLC (7.7%).
When did Madison Avenue Partners, LP buy into Magnera Corp?
The filings give report dates, not purchase dates. The earliest filing from Madison Avenue Partners, LP on this page is the Schedule 13G/A, filed 2025-11-14, reporting 8%. That earliest filing is itself an amendment, which updates an earlier report.
Is this an audit or a full list?
Neither. The ownership list on this page covers only Schedule 13D and 13G filings, which holders make once they own 5% or more of a class of shares (an amendment can report a stake that has since fallen below 5%); 12 such filings are shown here. It is not an audit and not a full cap table: holders who never reached 5% are not listed, and a stake can change after its latest filing.
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Which insiders own Magnera Corp shares?
Directors, officers and holders of 10% or more report their shares on Forms 3, 4 and 5. Each line is the latest such report, largest holding first.
- , the chief executive and president: 86,417 shares (0.24% of shares outstanding), 36,417 held directly and 50,000 indirectly (Form 4, 2026-11-06).
- , a director: 83,622 shares (0.23% of shares outstanding) (Form 4, 2025-11-06).
- , a director: 53,852 shares (0.15% of shares outstanding), 22,314 held directly and 31,538 indirectly (Form 4, 2025-11-06).
- , a director: 50,807 shares (0.14% of shares outstanding) (Form 4, 2025-11-06).
- , a director: 44,790 shares (0.13% of shares outstanding), 9,501 held directly and 35,289 indirectly (Form 4, 2025-11-06).
Shares outstanding: 35,800,000 as of 2026-08-06, from the company's latest SEC cover page.
How much has Magnera Corp raised?
No fundraising or offering filing from Magnera Corp is on file with us.
Keep reading
More on Magnera Corp and the records around it.
Magnera Corp elsewhere on the record
- 5%+ stake filings Aug 2026
Companies that share a holder
- Cetus Capital VI, L.P. also filed stake reports on 1 other company: Forward Air Corporation (May 2026)
- Madison Avenue International LP also filed stake reports on 11 other companies: Ultragenyx Pharmaceutical Inc. (Oct 2026), Graham Holdings Co (Aug 2026), STAAR SURGICAL CO (Aug 2026)
- Newtyn Management, LLC also filed stake reports on 13 other companies: Par Technology Corporation (Aug 2026), QuidelOrtho Corporation (Aug 2026), Theravance Biopharma, Inc. (Aug 2026)
Related pages
Filings, cases and notices link to their records. A not-found line names the records searched; it is not proof of absence.
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https://mentionfox.com/who-owns/magnera