MAGN Institutional Ownership & Shareholders
MAGNERA CORPORATION (MAGN) is currently held by 176 institutional investors tracked by InsiderSet, with a combined reported market value of approximately $426.55M based on the latest available SEC Form 13F filings for the quarter ended June 30, 2026.
Newtyn Management, Llc is currently the largest disclosed institutional shareholder of MAGN tracked by InsiderSet, reporting ownership valued at approximately $32.90M in its June 30, 2026 SEC Form 13F filing. Based on current market prices and the latest disclosed share count, the position is now estimated to be worth approximately $33.04M, representing an estimated gain of +0.43% since the filing period.
The top 10 institutional shareholders tracked on this page collectively account for approximately 47% of the total disclosed MAGN value among the investors covered in this analysis. Major shareholders include Newtyn Management, Llc, Blackrock, Inc., Engine Capital Management, Lp, and several other long-term asset managers with concentrated positions in MAGNERA CORPORATION (MAGN).
This page ranks the largest institutional MAGN shareholders using publicly disclosed SEC Form 13F data, including reported values, estimated current holding values, portfolio allocation percentages, ownership concentration metrics, and historical holding changes across major hedge funds and investment firms.
Institutional Holders
176
Total Reported Value
$426.55M
Largest Holder
Newtyn Management, Llc
Largest Position
$32.90M
Insider Transactions (90d)
0
Latest Filing Quarter
Q2 2026
New Institutional Positions
58
Funds Exiting Positions
0
| Name | Investor/Manager | Portfolio % | Quantity | Reported Balance | Current Estimated Value | Gain/loss Since Filing | Estimated Portfolio Performance |
|---|---|---|---|---|---|---|---|
| Newtyn Management, Llc | 4.11% | 2,800,000 | $32,900,000 | $33,040,000 | +$140,000 | +0.43% | |
| Blackrock, Inc. | 0.00% | 2,596,578 | $30,509,792 | $30,639,620 | +$129,828 | +0.43% | |
| Engine Capital Management, Lp | 2.57% | 2,243,827 | $26,364,967 | $26,477,159 | +$112,192 | +0.43% | |
| Littlejohn & Co Llc | 28.25% | 1,889,088 | $22,196,784 | $22,291,238 | +$94,454 | +0.43% | |
| Vanguard Capital Management Llc | 0.00% | 1,563,111 | $18,366,554 | $18,444,710 | +$78,156 | +0.43% | |
| Morgan Stanley | 0.00% | 1,534,193 | $18,026,787 | $18,103,477 | +$76,690 | +0.43% | |
| Madison Avenue Partners, Lp | 0.66% | 1,302,066 | $15,299,276 | $15,364,379 | +$65,103 | +0.43% | |
| Diameter Capital Partners Lp | 1.51% | 1,205,793 | $14,168,068 | $14,228,357 | +$60,289 | +0.43% | |
| Dg Capital Management, Llc | 4.48% | 1,101,476 | $12,942,343 | $12,997,417 | +$55,074 | +0.43% | |
| Geode Capital Management, Llc | 0.00% | 862,384 | $10,135,645 | $10,176,131 | +$40,486 | +0.40% | |
| Canyon Capital Advisors Llc | 1.08% | 810,000 | $9,517,500 | $9,558,000 | +$40,500 | +0.43% | |
| D. E. Shaw & Co., Inc. | 0.01% | 789,745 | $9,279,504 | $9,318,991 | +$39,487 | +0.43% | |
| Clearline Capital Lp | 0.56% | 741,096 | $8,707,878 | $8,744,933 | +$37,055 | +0.43% | |
| State Street Corp | 0.00% | 671,927 | $7,895,142 | $7,928,739 | +$33,597 | +0.43% | |
| Jb Capital Partners Lp | 1.19% | 655,000 | $7,696,250 | $7,729,000 | +$32,750 | +0.43% | |
| Thompson Siegel & Walmsley Llc | 0.14% | 649,806 | $7,635,000 | $7,667,711 | +$32,711 | +0.43% | |
| Jpmorgan Chase & Co | 0.00% | 610,865 | $7,238,749 | $7,208,207 | -$30,542 | -0.42% | |
| Verition Fund Management Llc | 0.05% | 607,303 | $7,135,810 | $7,166,175 | +$30,365 | +0.43% | |
| Jacobs Levy Equity Management, Inc | 0.03% | 601,599 | $7,068,788 | $7,098,868 | +$30,080 | +0.43% | |
| American Century Companies Inc | 0.00% | 599,991 | $7,049,894 | $7,079,894 | +$30,000 | +0.43% | |
| Ameriprise Financial Inc | 0.00% | 578,498 | $6,797,353 | $6,826,276 | +$28,923 | +0.43% | |
| Dimensional Fund Advisors Lp | 0.00% | 571,344 | $6,713,496 | $6,741,859 | +$28,363 | +0.42% | |
| Ubs Group Ag | 0.00% | 506,934 | $5,956,475 | $5,981,821 | +$25,346 | +0.43% | |
| Aqr Capital Management Llc | 0.00% | 479,549 | $5,634,702 | $5,658,678 | +$23,976 | +0.43% | |
| Algert Global Llc | 0.06% | 447,367 | $5,256,562 | $5,278,931 | +$22,369 | +0.43% | |
| J. Goldman & Co Lp | 0.18% | 424,989 | $4,993,621 | $5,014,870 | +$21,249 | +0.43% | |
| Charles Schwab Investment Management Inc | 0.00% | 423,311 | $4,973,904 | $4,995,070 | +$21,166 | +0.43% | |
| Seven Six Capital Management, Llc | 4.28% | 398,568 | $4,683,174 | $4,703,102 | +$19,928 | +0.43% | |
| Assenagon Asset Management S.A. | 0.00% | 412,591 | $4,678,782 | $4,868,574 | +$189,792 | +4.06% | |
| Sg Americas Securities, Llc | 0.00% | 397,523 | $4,671,000 | $4,690,771 | +$19,771 | +0.42% | |
| Goldman Sachs Group Inc | 0.00% | 371,488 | $4,364,984 | $4,383,558 | +$18,574 | +0.43% | |
| Ancora Advisors Llc | 0.08% | 370,701 | $4,355,736 | $4,374,272 | +$18,536 | +0.43% | |
| Vanguard Portfolio Management Llc | 0.00% | 360,698 | $4,238,202 | $4,256,236 | +$18,034 | +0.43% | |
| Russell Investments Group, Ltd. | 0.00% | 304,607 | $3,579,145 | $3,594,363 | +$15,218 | +0.43% | |
| Loews Corp | 0.03% | 300,000 | $3,525,000 | $3,540,000 | +$15,000 | +0.43% | |
| Bnp Paribas Financial Markets | 0.00% | 292,549 | $3,437,451 | $3,452,078 | +$14,627 | +0.43% | |
| Northern Trust Corp | 0.00% | 283,739 | $3,333,933 | $3,348,120 | +$14,187 | +0.43% | |
| Castleknight Management Lp | 0.12% | 282,095 | $3,314,616 | $3,328,721 | +$14,105 | +0.43% | |
| Vanguard Fiduciary Trust Co | 0.00% | 225,355 | $2,647,921 | $2,659,189 | +$11,268 | +0.43% | |
| Gratia Capital, Llc | 3.04% | 224,872 | $2,642,246 | $2,653,490 | +$11,244 | +0.43% | |
| Squarepoint Ops Llc | 0.00% | 217,272 | $2,552,946 | $2,563,810 | +$10,864 | +0.43% | |
| Man Group Plc | 0.00% | 207,170 | $2,434,248 | $2,444,606 | +$10,358 | +0.43% | |
| Bridgeway Capital Management, Llc | 0.04% | 206,604 | $2,427,597 | $2,437,927 | +$10,330 | +0.43% | |
| Lsv Asset Management | 0.00% | 199,623 | $2,346,000 | $2,355,551 | +$9,551 | +0.41% | |
| Readystate Asset Management Lp | 0.09% | 192,534 | $2,262,275 | $2,271,901 | +$9,626 | +0.43% | |
| Private Management Group Inc | 0.06% | 186,728 | $2,194,054 | $2,203,390 | +$9,336 | +0.43% | |
| Norges Bank | 0.00% | 180,500 | $2,120,875 | $2,129,900 | +$9,025 | +0.43% | |
| Trexquant Investment Lp | 0.01% | 175,176 | $2,058,318 | $2,067,077 | +$8,759 | +0.43% | |
| State Of Wisconsin Investment Board | 0.00% | 164,888 | $1,937,434 | $1,945,678 | +$8,244 | +0.43% | |
| Healthcare Of Ontario Pension Plan Trust Fund | 0.00% | 161,600 | $1,898,800 | $1,906,880 | +$8,080 | +0.43% |
Frequently asked questions about MAGN
Who are the largest institutional holders of MAGN?
The largest institutional holders of MAGN reported in the latest SEC Form 13F filings include Newtyn Management, Llc, Blackrock, Inc., Engine Capital Management, Lp, Littlejohn & Co Llc, and Vanguard Capital Management Llc. InsiderSet ranks institutional holders by their latest reported MAGN position.
What is MAGN institutional ownership?
This page tracks MAGN positions reported by institutional investment managers through SEC Form 13F. MAGNERA CORPORATION (MAGN) institutional ownership on InsiderSet reflects disclosed 13F holdings among the managers we analyze, not every shareholder of the stock.
How many institutions own MAGN?
InsiderSet currently tracks 176 institutional managers reporting MAGN holdings in the latest available 13F data. This count reflects institutions included in the SEC Form 13F filings analyzed by InsiderSet and should not be interpreted as the total number of MAGN shareholders.
How much MAGN stock do institutions own?
Institutional investment managers disclosed approximately $426.55M in MAGN holdings for Q2 2026. This figure is reported 13F value as of the filing period, not necessarily today's market value.
When was MAGN institutional ownership last updated?
The latest MAGN institutional ownership data on InsiderSet is based on SEC Form 13F filings for the quarter ended June 30, 2026. Form 13F filings are generally reported after the quarter ends, so the holdings shown represent the latest publicly disclosed positions rather than real-time institutional holdings.
Are institutional MAGN holdings real-time?
No. Form 13F data is not real-time. It represents positions reported by institutional investment managers as of the end of the reporting quarter. An institution may have changed its MAGN position after the reporting date.
Are institutions buying or selling MAGN?
Institutional buying and selling can be analyzed by comparing MAGN positions across consecutive 13F reporting periods. InsiderSet's MAGN Ownership Changes page shows institutions that increased, reduced, initiated, or exited positions based on reported 13F holdings. View MAGN ownership changes.
How has MAGN institutional ownership changed over time?
InsiderSet tracks MAGN institutional holdings across multiple 13F reporting periods, allowing investors to compare institutional holder counts, reported value, and reported shares over time.