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 |
|---|---|---|---|---|---|
| Newtyn Management, LLC | 2,760,000 | $26.2M | 2.80% | +400,000+16.9% | Added |
| Littlejohn & Co LLC | 2,425,818 | $23.1M | 21.86% | −168,069−6.5% | Reduced |
| BlackRock, Inc. | 2,390,007 | $22.7M | 0.00% | +14,082+0.6% | Added |
| Engine Capital Management, LP | 2,243,827 | $21.3M | 2.58% | 00.0% | Unchanged |
| Morgan Stanley | 1,967,831 | $18.7M | 0.00% | −454,636−18.8% | Reduced |
| Madison Avenue Partners, LP | 1,590,616 | $15.1M | 0.66% | −190,033−10.7% | Reduced |
| Vanguard Capital Management LLC | 1,533,277 | $14.6M | 0.00% | +1,533,277 | New |
| DG Capital Management, LLC | 1,207,356 | $11.5M | 4.97% | +1,170,581+3,183.1% | Added |
| Diameter Capital Partners LP | 1,205,793 | $11.5M | 2.20% | 00.0% | Unchanged |
| D. E. Shaw & Co., Inc. | 896,215 | $8.52M | 0.01% | +90,522+11.2% | Added |
| Canyon Capital Advisors LLC | 810,000 | $7.70M | 1.00% | 00.0% | Unchanged |
| JPMorgan Chase & Co | 828,799 | $7.43M | 0.00% | +577,762+230.2% | Added |
| Geode Capital Management, LLC | 780,258 | $7.42M | 0.00% | +34,291+4.6% | Added |
| Assenagon Asset Management S.A. | 742,425 | $7.06M | 0.01% | 00.0% | Unchanged |
| Clearline Capital LP | 738,317 | $7.02M | 0.55% | +77,712+11.8% | Added |
| Ancora Advisors, LLC | 721,090 | $6.86M | 0.15% | +295,576+69.5% | Added |
| State Street Corp | 656,868 | $6.25M | 0.00% | +15,877+2.5% | Added |
| JB Capital Partners LP | 655,000 | $6.23M | 1.07% | +140,000+27.2% | Added |
| Thompson Siegel & Walmsley LLC | 574,264 | $5.46M | 0.10% | +574,264 | New |
| Jacobs Levy Equity Management, Inc | 524,890 | $4.99M | 0.02% | −261,193−33.2% | Reduced |
| Ameriprise Financial Inc | 508,525 | $4.84M | 0.00% | −11,421−2.2% | Reduced |
| Russell Investments Group, Ltd. | 507,447 | $4.83M | 0.01% | +139,138+37.8% | Added |
| Charles Schwab Investment Management Inc | 453,697 | $4.31M | 0.00% | +51,453+12.8% | Added |
| Verition Fund Management LLC | 432,303 | $4.11M | 0.04% | +102,372+31.0% | Added |
| Algert Global LLC | 393,615 | $3.74M | 0.06% | +102,939+35.4% | Added |
| J. Goldman & Co LP | 387,281 | $3.68M | 0.17% | −150,939−28.0% | Reduced |
| Seven Six Capital Management, LLC | 374,868 | $3.56M | 3.83% | +93,350+33.2% | Added |
| Goldman Sachs Group Inc | 362,999 | $3.45M | 0.00% | −425,937−54.0% | Reduced |
| Citadel Advisors LLC | 314,819 | $2.99M | 0.00% | −235,573−42.8% | Reduced |
| Vanguard Portfolio Management LLC | 314,409 | $2.99M | 0.00% | +314,409 | New |
| BNP Paribas Arbitrage, SA | 304,910 | $2.90M | 0.00% | +24,980+8.9% | Added |
| Loews Corp | 300,000 | $2.85M | 0.02% | 00.0% | Unchanged |
| Gratia Capital, LLC | 299,627 | $2.85M | 2.70% | −15,000−4.8% | Reduced |
| UBS Group AG | 294,146 | $2.80M | 0.00% | −98,224−25.0% | Reduced |
| Trexquant Investment LP | 287,304 | $2.73M | 0.02% | +85,105+42.1% | Added |
| Tudor Investment Corp Et Al | 269,250 | $2.56M | 0.01% | +114,234+73.7% | Added |
| Northern Trust Corp | 254,574 | $2.42M | 0.00% | +8,920+3.6% | Added |
| Dimensional Fund Advisors LP | 253,908 | $2.41M | 0.00% | +131,772+107.9% | Added |
| LSV Asset Management | 244,493 | $2.33M | 0.01% | −90,565−27.0% | Reduced |
| American Century Companies Inc | 221,133 | $2.10M | 0.00% | +221,133 | New |
| Vanguard Fiduciary Trust Co | 216,581 | $2.06M | 0.00% | +216,581 | New |
| State of Wisconsin Investment Board | 202,888 | $1.93M | 0.00% | +110,483+119.6% | Added |
| Readystate Asset Management LP | 202,213 | $1.92M | 0.11% | +108,082+114.8% | Added |
| Millennium Management LLC | 199,969 | $1.90M | 0.00% | −318,075−61.4% | Reduced |
| Bridgeway Capital Management, LLC | 198,883 | $1.89M | 0.04% | +122,094+159.0% | Added |
| Man Group plc | 185,430 | $1.76M | 0.00% | +100,048+117.2% | Added |
| CastleKnight Management LP | 183,495 | $1.75M | 0.08% | 00.0% | Unchanged |
| Squarepoint Ops LLC | 177,878 | $1.69M | 0.00% | +19,428+12.3% | Added |
| Jump Financial, LLC | 173,262 | $1.65M | 0.02% | +13,149+8.2% | Added |
| AQR Capital Management LLC | 145,579 | $1.38M | 0.00% | +145,579 | New |
| Empowered Funds, LLC | 134,037 | $1.27M | 0.01% | +61,094+83.8% | Added |
| Engineers Gate Manager LP | 121,427 | $1.15M | 0.01% | +33,545+38.2% | Added |
| Bank of New York Mellon Corp | 121,035 | $1.15M | 0.00% | +33,435+38.2% | Added |
| Weiss Asset Management LP | 117,506 | $1.12M | 0.02% | −15,258−11.5% | Reduced |
| Invesco Ltd. | 113,877 | $1.08M | 0.00% | −47,957−29.6% | Reduced |
| ING Groep NV | 110,000 | $1.05M | 0.01% | 00.0% | Unchanged |
| XTX Topco Ltd | 102,976 | $979.3K | 0.02% | +64,495+167.6% | Added |
| Alpine Global Management, LLC | 100,000 | $951.0K | 0.14% | +50,000+100.0% | Added |
| Nuveen, LLC | 90,724 | $862.8K | 0.00% | −732,453−89.0% | Reduced |
| Susquehanna Portfolio Strategies, LLC | 89,211 | $848.4K | 0.01% | +59,552+200.8% | Added |
| Vanguard Global Advisers, LLC | 80,346 | $764.1K | 0.00% | +80,346 | New |
| Raymond James Financial Inc | 78,955 | $750.9K | 0.00% | +52,091+193.9% | Added |
| Y-Intercept (Hong Kong) Ltd | 78,572 | $747.2K | 0.01% | +50,393+178.8% | Added |
| Quinn Opportunity Partners LLC | 75,624 | $719.2K | 0.04% | −10,244−11.9% | Reduced |
| Gsa Capital Partners LLP | 72,180 | $686.0K | 0.04% | −55,915−43.7% | Reduced |
| FMR LLC | 66,807 | $635.3K | 0.00% | −67,155−50.1% | Reduced |
| Bank of America Corp | 57,788 | $549.6K | 0.00% | −175,777−75.3% | Reduced |
| ExodusPoint Capital Management, LP | 57,671 | $548.5K | 0.01% | +1,646+2.9% | Added |
| Alliancebernstein L.P. | 35,534 | $538.0K | 0.00% | 00.0% | Unchanged |
| Voleon Capital Management LP | 55,410 | $526.9K | 0.01% | +3,192+6.1% | Added |
| Marshall Wace, LLP | 55,167 | $524.6K | 0.00% | +22,544+69.1% | Added |
| Public Employees Retirement System of Ohio | 52,691 | $501.1K | 0.00% | −5,178−8.9% | Reduced |
| Healthcare of Ontario Pension Plan Trust Fund | 46,599 | $443.2K | 0.00% | −74,116−61.4% | Reduced |
| RBF Capital, LLC | 45,492 | $432.6K | 0.02% | −8,500−15.7% | Reduced |
| Rhumbline Advisers | 41,030 | $390.2K | 0.00% | −80−0.2% | Reduced |
| Knightsbridge Asset Management, LLC | 36,480 | $346.9K | 0.05% | −809−2.2% | Reduced |
| Price T Rowe Associates Inc | 36,012 | $343.0K | 0.00% | +4,735+15.1% | Added |
| Tactive Advisors, LLC | 34,895 | $331.9K | 0.09% | +4,426+14.5% | Added |
| Walleye Capital LLC | 30,646 | $291.4K | 0.00% | −215,351−87.5% | Reduced |
| Fox Run Management, L.L.C. | 28,190 | $252.6K | 0.04% | +28,190 | New |
| Sterling Capital Management LLC | 26,315 | $250.3K | 0.00% | +24,473+1,328.6% | Added |
| Voya Investment Management LLC | 25,036 | $238.1K | 0.00% | +25,036 | New |
| Canada Pension Plan Investment Board | 23,900 | $227.3K | 0.00% | +8,700+57.2% | Added |
| Two Sigma Investments, LP | 23,481 | $223.3K | 0.00% | +23,481 | New |
| Citigroup Inc | 22,104 | $210.2K | 0.00% | −6,907−23.8% | Reduced |
| Brown Advisory Inc | 22,054 | $209.7K | 0.00% | 00.0% | Unchanged |
| Prelude Capital Management, LLC | 19,299 | $183.5K | 0.01% | +3,760+24.2% | Added |
| Universal- Beteiligungs- und Servicegesellschaft mbH | 18,567 | $176.6K | 0.00% | 00.0% | Unchanged |
| Franklin Resources Inc | 18,345 | $174.5K | 0.00% | −145−0.8% | Reduced |
| MetLife Investment Management | 18,230 | $173.4K | 0.00% | +1,819+11.1% | Added |
| Magnetar Financial LLC | 18,160 | $172.7K | 0.00% | +18,160 | New |
| Glenmede Trust Co NA | 16,230 | $154.3K | 0.00% | −1,500−8.5% | Reduced |
| Atria Investments LLC | 16,061 | $152.7K | 0.00% | +495+3.2% | Added |
| Mirae Asset Global ETFs Holdings Ltd. | 15,399 | $146.4K | 0.00% | +583+3.9% | Added |
| Oppenheimer Asset Management Inc. | 15,384 | $146.3K | 0.00% | +15,384 | New |
| HSBC Holdings PLC | 15,687 | $145.9K | 0.00% | +15,687 | New |
| State of Wyoming | 15,176 | $144.3K | 0.02% | +15,176 | New |
| Creative Planning | 14,642 | $139.2K | 0.00% | −5,052−25.7% | Reduced |
| Wells Fargo & Company | 14,148 | $134.5K | 0.00% | −23,779−62.7% | Reduced |
| SEI Investments Co | 12,741 | $121.5K | 0.00% | −1,806−12.4% | Reduced |