MagneraMAGN
13F holders, Q3 2025 (September 30)178holders −9
20new positions
27sold out
4famous investors
$11.72avg. 13F price*
At the end of Q3 2025, 178 institutions reported holding Magnera Corp. (MAGN) in their 13F filings, down 9 from Q2 2025. 20 opened new positions and 27 sold out. The largest holders were Littlejohn & Co. LLC ($37.6M), Madison Avenue Partners, LP ($33.2M) and Engine Capital Management, LP ($31.7M). 4 famous investors held it, including Ken Griffin (0.0% of Citadel Advisors's portfolio), David E. Shaw (0.0% of D. E. Shaw & Co.'s portfolio) and Israel Englander (0.0% of Millennium Management's portfolio).
- Company
- Magnera Corp.
- CUSIP
- 55939A107
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q2 2025 → Q3 2025
| Institutions | Total Value | |
|---|---|---|
| New Positions | 20 | $12.1M |
| Exits | 27 | $37.0M |
All 13F filers, Q2 2025 → Q3 2025: 4,037,208 shares bought and 6,850,321 shares sold, net −2,813,113 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 178 holders
| Littlejohn & Co. LLC | 18.96% | Add +14.3% | 3,204,726 | $37.6M |
| Madison Avenue Partners, LP | 1.98% | Reduce -15.3% | 2,832,281 | $33.2M |
| Engine Capital Management, LP | 3.76% | Add +8.9% | 2,702,041 | $31.7M |
| BlackRock, Inc. | 0.00% | Reduce -1.8% | 2,498,522 | $29.3M |
| Newtyn Management, LLC | 3.24% | Reduce -0.5% | 2,260,000 | $26.5M |
| Vanguard Group Inc. | 0.00% | Reduce -9.6% | 2,143,848 | $25.1M |
| Ancora Advisors LLC | 0.41% | Reduce -9.8% | 1,737,788 | $20.4M |
| Morgan Stanley | 0.00% | Reduce -19.8% | 1,568,548 | $18.4M |
| DG Capital Management, LLC | 8.89% | Add +32.5% | 1,164,718 | $13.7M |
| Goldman Sachs Group Inc. | 0.00% | Add +2.9% | 840,532 | $9.9M |
| Canyon Capital Advisors LLC | 1.30% | No change | 810,000 | $9.5M |
| Geode Capital Management, LLC | 0.00% | Reduce -3.5% | 755,760 | $8.9M |
| Assenagon Asset Management S.A. | 0.01% | Add +118.1% | 753,906 | $8.8M |
| Black Diamond Capital Management I, LLLP | 5.84% | — | 750,000 | $8.8M |
| UBS Group AG | 0.00% | Reduce -37.3% | 689,481 | $8.1M |
| State Street Corp. | 0.00% | Add +22.9% | 643,600 | $7.5M |
| Brightline Capital Management, LLC | 2.69% | Add +0.9% | 560,000 | $6.6M |
| FMR LLC | 0.00% | Add +18.1% | 518,626 | $6.1M |
| Citadel Advisors | 0.00% | Add +479.9% | 474,722 | $5.6M |
| Diameter Capital Partners LP | 0.57% | No change | 460,313 | $5.4M |
| J. Goldman & Co LP | 0.19% | Reduce -14.1% | 438,697 | $5.1M |
| Empyrean Capital Partners, LP | 0.23% | Reduce -7.1% | 436,260 | $5.1M |
| Ameriprise Financial Inc. | 0.00% | Reduce -0.7% | 427,992 | $5.0M |
| Royal Bank of Canada | 0.00% | Reduce -18.2% | 418,225 | $4.9M |
| LSV Asset Management | 0.01% | Reduce -32.5% | 374,750 | $4.4M |
| Loews Corp | 0.04% | No change | 360,500 | $4.2M |
| Weiss Asset Management LP | 0.07% | Add +94.0% | 338,230 | $4.0M |
| Bracebridge Capital, LLC | 1.62% | New | 316,854 | $3.7M |
| Turtle Creek Asset Management Inc. | 0.11% | No change | 314,733 | $3.7M |
| Gratia Capital, LLC | 3.27% | No change | 314,627 | $3.7M |
| Seven Six Capital Management, LLC | 3.59% | Add +2.1% | 310,768 | $3.6M |
| Northern Trust Corp. | 0.00% | Reduce -1.0% | 292,038 | $3.4M |
| Charles Schwab Investment Management Inc. | 0.00% | Add +29.0% | 289,164 | $3.4M |
| Russell Investments Group, Ltd. | 0.00% | Reduce -7.1% | 261,944 | $3.1M |
| D. E. Shaw & Co. | 0.00% | Reduce -43.1% | 259,209 | $3.0M |
| CastleKnight Management LP | 0.16% | Add +87.1% | 256,000 | $3.0M |
| Dimensional Fund Advisors LP | 0.00% | Reduce -49.1% | 254,757 | $3.0M |
| Alpine Global Management, LLC | 0.71% | Add +129.5% | 229,456 | $2.7M |
| Readystate Asset Management LP | 0.24% | Add +60.9% | 210,350 | $2.5M |
| Millennium Management | 0.00% | Reduce -71.0% | 209,088 | $2.5M |
| Clearline Capital LP | 0.18% | New | 177,401 | $2.1M |
| JB Capital Partners LP | 0.34% | New | 170,000 | $2.0M |
| Jump Financial, LLC | 0.03% | Add +1070.8% | 165,903 | $1.9M |
| Jacobs Levy Equity Management, Inc. | 0.01% | New | 149,042 | $1.7M |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | 0.00% | Reduce -17.3% | 121,634 | $1.4M |
| ING Groep NV | 0.01% | No change | 110,000 | $1.3M |
| Bank of New York Mellon Corp | 0.00% | Add +7.0% | 88,764 | $1.0M |
| Invesco Ltd. | 0.00% | Add +30.8% | 88,700 | $1.0M |
| HighVista Strategies LLC | 0.25% | Reduce -12.6% | 87,100 | $1.0M |
| State of Wisconsin Investment Board | 0.00% | Add +139.5% | 84,987 | $996K |
| Bank of America Corp. | 0.00% | Reduce -63.2% | 77,916 | $913K |
| Nuveen, LLC | 0.00% | Reduce -63.4% | 76,962 | $902K |
| Cubist Systematic Strategies, LLC | 0.01% | Add +54.2% | 72,455 | $849K |
| Tocqueville Asset Management L.P. | 0.01% | Reduce -33.3% | 70,000 | $820K |
| Bridgeway Capital Management, LLC | 0.02% | Add +12.1% | 69,706 | $817K |
| Trexquant Investment LP | 0.01% | Reduce -47.4% | 66,378 | $778K |
| Empowered Funds, LLC | 0.01% | Add +12.9% | 65,860 | $772K |
| Swiss National Bank | 0.00% | No change | 61,631 | $722K |
| JPMorgan Chase & Co. | 0.00% | Add +119.7% | 55,803 | $654K |
| BNP Paribas Financial Markets | 0.00% | Add +1675.8% | 55,084 | $646K |
| RBF Capital, LLC | 0.03% | No change | 53,992 | $633K |
| Rhumbline Advisers | 0.00% | Reduce -4.1% | 49,179 | $576K |
| Barclays PLC | 0.00% | Reduce -24.5% | 46,955 | $550K |
| AlphaQuest LLC | 0.03% | Add +920.4% | 44,090 | $517K |
| Atom Investors LP | 0.04% | New | 43,441 | $509K |
| Knightsbridge Asset Management, LLC | 0.08% | Add +3.9% | 38,719 | $454K |
| ExodusPoint Capital Management, LP | 0.01% | Add +199.6% | 37,010 | $434K |
| Alliancebernstein L.P. | 0.00% | Add +73.1% | 36,938 | $433K |
| Caption Management, LLC | 0.03% | New | 35,753 | $419K |
| Point72 Asset Management | 0.00% | Add +34.2% | 34,970 | $410K |
| Tactive Advisors, LLC | 0.12% | Add +91.5% | 34,778 | $408K |
| Legal & General Group Plc | 0.00% | No change | 34,639 | $406K |
| TAM Capital Management Inc. | 0.20% | Reduce -65.4% | 34,038 | $399K |
| Bluefin Capital Management, LLC | 0.21% | Reduce -45.0% | 34,037 | $399K |
| California State Teachers Retirement System | 0.00% | Add +0.0% | 32,330 | $379K |
| Marshall Wace, LLP | 0.00% | New | 28,666 | $336K |
| Wells Fargo & Company | 0.00% | Add +11.7% | 28,487 | $334K |
| Deutsche Bank AG | 0.00% | Add +5.7% | 27,872 | $327K |
| Quantbot Technologies LP | 0.01% | Add +130.5% | 27,715 | $325K |
| Raymond James Financial Inc. | 0.00% | Reduce -14.1% | 26,968 | $316K |
| Squarepoint Ops LLC | 0.00% | New | 26,686 | $313K |
| Brown Advisory Inc. | 0.00% | Reduce -4.9% | 23,914 | $280K |
| Two Sigma Advisers, LP | 0.00% | Reduce -1.3% | 22,864 | $268K |
| Universal- Beteiligungs- und Servicegesellschaft mbH | 0.00% | Add +5.8% | 19,641 | $230K |
| T. Rowe Price Associates Inc. | 0.00% | Add +6.2% | 17,701 | $208K |
| Glenmede Investment Management, LP | 0.00% | Reduce -0.1% | 17,692 | $207K |
| Y-Intercept (Hong Kong) Ltd | 0.01% | Reduce -72.4% | 17,622 | $207K |
| Public Employees Retirement System of Ohio | 0.00% | Add +2078.6% | 17,538 | $206K |
| Brevan Howard Capital Management LP | 0.00% | New | 17,279 | $203K |
| MetLife Investment Management, LLC | 0.00% | Reduce -21.1% | 16,013 | $188K |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | 0.00% | Reduce -14.4% | 15,614 | $183K |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 0.00% | Add +55.6% | 14,694 | $172K |
| Graham Capital Management, L.P. | 0.01% | New | 14,376 | $168K |
| Atria Investments, Inc | 0.00% | Reduce -0.5% | 14,285 | $167K |
| Diametric Capital, LP | 0.06% | Reduce -22.9% | 14,235 | $167K |
| Janus Henderson Group PLC | 0.00% | No change | 13,741 | $161K |
| Intech Investment Management LLC | 0.00% | Reduce -18.3% | 13,121 | $154K |
| Gsa Capital Partners LLP | 0.01% | New | 13,033 | $153K |
| Catalyst Funds Management Pty Ltd | 0.02% | Reduce -63.0% | 12,600 | $148K |
| First Trust Advisors LP | 0.00% | New | 11,879 | $139K |
"% of holder's portfolio" is MAGN's weight in each manager's 13F, not the share of Magnera Corp. the manager owns.