Magnera Corp
MAGN- Exchange
- NYSE
- Industry
- Paper Mills
- SEC CIK
- 0000041719
No open-market purchases or sales by Magnera Corp insiders were filed in the last 90 days; 179 institutions reported holding it in 13F filings for Q2 2026, worth $427.2M in total; no superinvestor holds it.
13F holders, Q1 2026
Institutional positions in Magnera Corp as of Mar 31, 2026. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 175
- −9 vs. Q4 2025
- Shares held
- 36.6M
- +1.32M (+3.7%) vs. Q4 2025
- Total value
- $347.6M
- −$186.5M (−34.9%) vs. Q4 2025
- New holders
- 25
- 61 more added
- Sold out
- 34
- 55 more reduced
5 institutions that held it in Q4 2025 haven't filed for Q1 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 2025: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting MAGN on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 179 | $427.2M |
| Q1 2026 | 175 | $347.6M |
| Q4 2025 | 189 | $567.3M |
| Q3 2025 | 180 | $431.4M |
| Q2 2025 | 190 | $479.9M |
| Q1 2025 | 215 | $639.5M |
| Q4 2024 | 232 | $635.6M |
| Q3 2024 | 77 | $51.7M |
| Q2 2024 | 92 | $45.0M |
| Q1 2024 | 97 | $72.1M |
| Q4 2023 | 97 | $67.5M |
| Q3 2023 | 97 | $69.9M |
| Q2 2023 | 115 | $108.1M |
| Q1 2023 | 119 | $116.8M |
| Q4 2022 | 135 | $103.2M |
| Q3 2022 | 136 | $121.7M |
| Q2 2022 | 152 | $280.6M |
| Q1 2022 | 158 | $503.7M |
| Q4 2021 | 141 | $705.3M |
| Q3 2021 | 142 | $572.9M |
| Q2 2021 | 138 | $562.9M |
| Q1 2021 | 137 | $697.6M |
Institutions, Q1 2026
Shares, value and share of portfolio for each institution holding Magnera Corp; share changes are against Q4 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Rhumbline Advisers | 41,030 | $390.2K | 0.00% | −80−0.2% | Reduced |
| RBF Capital, LLC | 45,492 | $432.6K | 0.02% | −8,500−15.7% | Reduced |
| Healthcare of Ontario Pension Plan Trust Fund | 46,599 | $443.2K | 0.00% | −74,116−61.4% | Reduced |
| Public Employees Retirement System of Ohio | 52,691 | $501.1K | 0.00% | −5,178−8.9% | Reduced |
| Marshall Wace, LLP | 55,167 | $524.6K | 0.00% | +22,544+69.1% | Added |
| Voleon Capital Management LP | 55,410 | $526.9K | 0.01% | +3,192+6.1% | Added |
| Alliancebernstein L.P. | 35,534 | $538.0K | 0.00% | 00.0% | Unchanged |
| ExodusPoint Capital Management, LP | 57,671 | $548.5K | 0.01% | +1,646+2.9% | Added |
| Bank of America Corp | 57,788 | $549.6K | 0.00% | −175,777−75.3% | Reduced |
| FMR LLC | 66,807 | $635.3K | 0.00% | −67,155−50.1% | Reduced |
| Gsa Capital Partners LLP | 72,180 | $686.0K | 0.04% | −55,915−43.7% | Reduced |
| Quinn Opportunity Partners LLC | 75,624 | $719.2K | 0.04% | −10,244−11.9% | Reduced |
| Y-Intercept (Hong Kong) Ltd | 78,572 | $747.2K | 0.01% | +50,393+178.8% | Added |
| Raymond James Financial Inc | 78,955 | $750.9K | 0.00% | +52,091+193.9% | Added |
| Vanguard Global Advisers, LLC | 80,346 | $764.1K | 0.00% | +80,346 | New |
| Susquehanna Portfolio Strategies, LLC | 89,211 | $848.4K | 0.01% | +59,552+200.8% | Added |
| Nuveen, LLC | 90,724 | $862.8K | 0.00% | −732,453−89.0% | Reduced |
| Alpine Global Management, LLC | 100,000 | $951.0K | 0.14% | +50,000+100.0% | Added |
| XTX Topco Ltd | 102,976 | $979.3K | 0.02% | +64,495+167.6% | Added |
| ING Groep NV | 110,000 | $1.05M | 0.01% | 00.0% | Unchanged |
| Invesco Ltd. | 113,877 | $1.08M | 0.00% | −47,957−29.6% | Reduced |
| Weiss Asset Management LP | 117,506 | $1.12M | 0.02% | −15,258−11.5% | Reduced |
| Bank of New York Mellon Corp | 121,035 | $1.15M | 0.00% | +33,435+38.2% | Added |
| Engineers Gate Manager LP | 121,427 | $1.15M | 0.01% | +33,545+38.2% | Added |
| Empowered Funds, LLC | 134,037 | $1.27M | 0.01% | +61,094+83.8% | Added |
| AQR Capital Management LLC | 145,579 | $1.38M | 0.00% | +145,579 | New |
| Jump Financial, LLC | 173,262 | $1.65M | 0.02% | +13,149+8.2% | Added |
| Squarepoint Ops LLC | 177,878 | $1.69M | 0.00% | +19,428+12.3% | Added |
| CastleKnight Management LP | 183,495 | $1.75M | 0.08% | 00.0% | Unchanged |
| Man Group plc | 185,430 | $1.76M | 0.00% | +100,048+117.2% | Added |
| Bridgeway Capital Management, LLC | 198,883 | $1.89M | 0.04% | +122,094+159.0% | Added |
| Millennium Management LLC | 199,969 | $1.90M | 0.00% | −318,075−61.4% | Reduced |
| Readystate Asset Management LP | 202,213 | $1.92M | 0.11% | +108,082+114.8% | Added |
| State of Wisconsin Investment Board | 202,888 | $1.93M | 0.00% | +110,483+119.6% | Added |
| Vanguard Fiduciary Trust Co | 216,581 | $2.06M | 0.00% | +216,581 | New |
| American Century Companies Inc | 221,133 | $2.10M | 0.00% | +221,133 | New |
| LSV Asset Management | 244,493 | $2.33M | 0.01% | −90,565−27.0% | Reduced |
| Dimensional Fund Advisors LP | 253,908 | $2.41M | 0.00% | +131,772+107.9% | Added |
| Northern Trust Corp | 254,574 | $2.42M | 0.00% | +8,920+3.6% | Added |
| Tudor Investment Corp Et Al | 269,250 | $2.56M | 0.01% | +114,234+73.7% | Added |
| Trexquant Investment LP | 287,304 | $2.73M | 0.02% | +85,105+42.1% | Added |
| UBS Group AG | 294,146 | $2.80M | 0.00% | −98,224−25.0% | Reduced |
| Gratia Capital, LLC | 299,627 | $2.85M | 2.70% | −15,000−4.8% | Reduced |
| Loews Corp | 300,000 | $2.85M | 0.02% | 00.0% | Unchanged |
| BNP Paribas Arbitrage, SA | 304,910 | $2.90M | 0.00% | +24,980+8.9% | Added |
| Vanguard Portfolio Management LLC | 314,409 | $2.99M | 0.00% | +314,409 | New |
| Citadel Advisors LLC | 314,819 | $2.99M | 0.00% | −235,573−42.8% | Reduced |
| Goldman Sachs Group Inc | 362,999 | $3.45M | 0.00% | −425,937−54.0% | Reduced |
| Seven Six Capital Management, LLC | 374,868 | $3.56M | 3.83% | +93,350+33.2% | Added |
| J. Goldman & Co LP | 387,281 | $3.68M | 0.17% | −150,939−28.0% | Reduced |
| Algert Global LLC | 393,615 | $3.74M | 0.06% | +102,939+35.4% | Added |
| Verition Fund Management LLC | 432,303 | $4.11M | 0.04% | +102,372+31.0% | Added |
| Charles Schwab Investment Management Inc | 453,697 | $4.31M | 0.00% | +51,453+12.8% | Added |
| Russell Investments Group, Ltd. | 507,447 | $4.83M | 0.01% | +139,138+37.8% | Added |
| Ameriprise Financial Inc | 508,525 | $4.84M | 0.00% | −11,421−2.2% | Reduced |
| Jacobs Levy Equity Management, Inc | 524,890 | $4.99M | 0.02% | −261,193−33.2% | Reduced |
| Thompson Siegel & Walmsley LLC | 574,264 | $5.46M | 0.10% | +574,264 | New |
| JB Capital Partners LP | 655,000 | $6.23M | 1.07% | +140,000+27.2% | Added |
| State Street Corp | 656,868 | $6.25M | 0.00% | +15,877+2.5% | Added |
| Ancora Advisors, LLC | 721,090 | $6.86M | 0.15% | +295,576+69.5% | Added |
| Clearline Capital LP | 738,317 | $7.02M | 0.55% | +77,712+11.8% | Added |
| Assenagon Asset Management S.A. | 742,425 | $7.06M | 0.01% | 00.0% | Unchanged |
| Geode Capital Management, LLC | 780,258 | $7.42M | 0.00% | +34,291+4.6% | Added |
| JPMorgan Chase & Co | 828,799 | $7.43M | 0.00% | +577,762+230.2% | Added |
| Canyon Capital Advisors LLC | 810,000 | $7.70M | 1.00% | 00.0% | Unchanged |
| D. E. Shaw & Co., Inc. | 896,215 | $8.52M | 0.01% | +90,522+11.2% | Added |
| Diameter Capital Partners LP | 1,205,793 | $11.5M | 2.20% | 00.0% | Unchanged |
| DG Capital Management, LLC | 1,207,356 | $11.5M | 4.97% | +1,170,581+3,183.1% | Added |
| Vanguard Capital Management LLC | 1,533,277 | $14.6M | 0.00% | +1,533,277 | New |
| Madison Avenue Partners, LP | 1,590,616 | $15.1M | 0.66% | −190,033−10.7% | Reduced |
| Morgan Stanley | 1,967,831 | $18.7M | 0.00% | −454,636−18.8% | Reduced |
| Engine Capital Management, LP | 2,243,827 | $21.3M | 2.58% | 00.0% | Unchanged |
| BlackRock, Inc. | 2,390,007 | $22.7M | 0.00% | +14,082+0.6% | Added |
| Littlejohn & Co LLC | 2,425,818 | $23.1M | 21.86% | −168,069−6.5% | Reduced |
| Newtyn Management, LLC | 2,760,000 | $26.2M | 2.80% | +400,000+16.9% | Added |
| Jefferies Financial Group Inc. | 0 | $0 | 0.00% | −994,619−100.0% | Sold out |
| SG Americas Securities, LLC | 0 | $0 | 0.00% | −557,810−100.0% | Sold out |
| Jane Street Group, LLC | 0 | $0 | 0.00% | −215,920−100.0% | Sold out |
| Point72 Asset Management, L.P. | 0 | $0 | 0.00% | −173,366−100.0% | Sold out |
| Aristeia Capital LLC | 0 | $0 | 0.00% | −62,996−100.0% | Sold out |
| Counterpoint Mutual Funds LLC | 0 | $0 | 0.00% | −54,410−100.0% | Sold out |
| Oxford Asset Management LLP | 0 | $0 | 0.00% | −42,188−100.0% | Sold out |
| Jain Global LLC | 0 | $0 | 0.00% | −38,869−100.0% | Sold out |
| Axq Capital, LP | 0 | $0 | 0.00% | −34,770−100.0% | Sold out |
| Two Sigma Advisers, LP | 0 | $0 | 0.00% | −31,052−100.0% | Sold out |
| PharVision Advisers, LLC | 0 | $0 | 0.00% | −29,209−100.0% | Sold out |
| Atom Investors LP | 0 | $0 | 0.00% | −22,994−100.0% | Sold out |
| Aquatic Capital Management LLC | 0 | $0 | 0.00% | −22,938−100.0% | Sold out |
| Dynamic Technology Lab Private Ltd | 0 | $0 | 0.00% | −21,450−100.0% | Sold out |
| Quest Partners LLC | 0 | $0 | 0.00% | −18,359−100.0% | Sold out |
| Schonfeld Strategic Advisors LLC | 0 | $0 | 0.00% | −16,576−100.0% | Sold out |
| Limestone Investment Advisors LP | 0 | $0 | 0.00% | – | Sold out |
| Versor Investments LP | 0 | $0 | 0.00% | −15,600−100.0% | Sold out |
| Lazard Asset Management LLC | 0 | $0 | 0.00% | −15,030−100.0% | Sold out |
| Inceptionr LLC | 0 | $0 | 0.00% | −13,227−100.0% | Sold out |
| Intech Investment Management LLC | 0 | $0 | 0.00% | −13,088−100.0% | Sold out |
| Catalyst Funds Management Pty Ltd | 0 | $0 | 0.00% | −12,600−100.0% | Sold out |
| Simplex Trading, LLC | 0 | $0 | 0.00% | −11,643−100.0% | Sold out |
| Winton Group Ltd | 0 | $0 | 0.00% | −10,600−100.0% | Sold out |
| Centiva Capital, LP | 0 | $0 | 0.00% | −5,062−100.0% | Sold out |