MAGNERA CORPORATION (MAGN) Institutional Shareholders
MAGNERA CORPORATION (MAGN) is currently reported in institutional portfolios tracked by InsiderSet based on the latest available SEC Form 13F filings for the quarter ended June 30, 2026. The institutional investors covered on this page collectively reported approximately $422.59M in MAGN holdings during the latest filing period.
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 $32.76M, representing an estimated loss of -0.43% since the filing period.
The top 10 institutional shareholders tracked on this page collectively account for approximately 48% 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
174
Total Reported Value
$422.59M
Largest Holder
Newtyn Management, Llc
Largest Position
$32.90M
Insider Transactions (90d)
0
Latest Filing Quarter
Q2 2026
New Institutional Positions
77
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 | $32,760,000 | -$140,000 | -0.43% | |
| Blackrock, Inc. | 0.00% | 2,596,578 | $30,509,792 | $30,379,963 | -$129,829 | -0.43% | |
| Engine Capital Management, Lp | 2.57% | 2,243,827 | $26,364,967 | $26,252,776 | -$112,191 | -0.43% | |
| Littlejohn & Co Llc | 28.25% | 1,889,088 | $22,196,784 | $22,102,330 | -$94,454 | -0.43% | |
| Vanguard Capital Management Llc | 0.00% | 1,563,111 | $18,366,554 | $18,288,399 | -$78,155 | -0.43% | |
| Morgan Stanley | 0.00% | 1,534,193 | $18,026,787 | $17,950,058 | -$76,729 | -0.43% | |
| Madison Avenue Partners, Lp | 0.66% | 1,302,066 | $15,299,276 | $15,234,172 | -$65,104 | -0.43% | |
| Diameter Capital Partners Lp | 1.51% | 1,205,793 | $14,168,068 | $14,107,778 | -$60,290 | -0.43% | |
| Dg Capital Management, Llc | 4.48% | 1,101,476 | $12,942,343 | $12,887,269 | -$55,074 | -0.43% | |
| Geode Capital Management, Llc | 0.00% | 862,384 | $10,135,645 | $10,089,893 | -$45,752 | -0.45% | |
| Canyon Capital Advisors Llc | 1.08% | 810,000 | $9,517,500 | $9,477,000 | -$40,500 | -0.43% | |
| D. E. Shaw & Co., Inc. | 0.01% | 789,745 | $9,279,504 | $9,240,017 | -$39,488 | -0.43% | |
| Clearline Capital Lp | 0.56% | 741,096 | $8,707,878 | $8,670,823 | -$37,055 | -0.43% | |
| State Street Corp | 0.00% | 671,927 | $7,895,142 | $7,861,546 | -$33,596 | -0.43% | |
| Jb Capital Partners Lp | 1.19% | 655,000 | $7,696,250 | $7,663,500 | -$32,750 | -0.43% | |
| Thompson Siegel & Walmsley Llc | 0.14% | 649,806 | $7,635,000 | $7,602,730 | -$32,270 | -0.42% | |
| Jpmorgan Chase & Co | 0.00% | 610,865 | $7,238,749 | $7,147,121 | -$91,629 | -1.27% | |
| Verition Fund Management Llc | 0.05% | 607,303 | $7,135,810 | $7,105,445 | -$30,365 | -0.43% | |
| Jacobs Levy Equity Management, Inc | 0.03% | 601,599 | $7,068,788 | $7,038,708 | -$30,080 | -0.43% | |
| American Century Companies Inc | 0.00% | 599,991 | $7,049,894 | $7,019,895 | -$29,999 | -0.43% | |
| Ameriprise Financial Inc | 0.00% | 578,498 | $6,797,353 | $6,768,427 | -$28,926 | -0.43% | |
| Dimensional Fund Advisors Lp | 0.00% | 571,344 | $6,713,496 | $6,684,725 | -$28,771 | -0.43% | |
| Assenagon Asset Management S.A. | 0.01% | 558,957 | $6,567,745 | $6,539,797 | -$27,948 | -0.43% | |
| Ubs Group Ag | 0.00% | 506,934 | $5,956,475 | $5,931,128 | -$25,347 | -0.43% | |
| Aqr Capital Management Llc | 0.00% | 479,549 | $5,634,702 | $5,610,723 | -$23,979 | -0.43% | |
| Algert Global Llc | 0.06% | 447,367 | $5,256,562 | $5,234,194 | -$22,368 | -0.43% | |
| J. Goldman & Co Lp | 0.18% | 424,989 | $4,993,621 | $4,972,371 | -$21,250 | -0.43% | |
| Charles Schwab Investment Management Inc | 0.00% | 423,311 | $4,973,904 | $4,952,739 | -$21,165 | -0.43% | |
| Seven Six Capital Management, Llc | 4.28% | 398,568 | $4,683,174 | $4,663,246 | -$19,928 | -0.43% | |
| Sg Americas Securities, Llc | 0.00% | 397,523 | $4,671,000 | $4,651,019 | -$19,981 | -0.43% | |
| Goldman Sachs Group Inc | 0.00% | 371,488 | $4,364,984 | $4,346,410 | -$18,574 | -0.43% | |
| Vanguard Portfolio Management Llc | 0.00% | 360,698 | $4,238,202 | $4,220,167 | -$18,035 | -0.43% | |
| Russell Investments Group, Ltd. | 0.00% | 304,607 | $3,579,145 | $3,563,902 | -$15,243 | -0.43% | |
| Loews Corp | 0.03% | 300,000 | $3,525,000 | $3,510,000 | -$15,000 | -0.43% | |
| Bnp Paribas Financial Markets | 0.00% | 292,549 | $3,437,451 | $3,422,823 | -$14,628 | -0.43% | |
| Northern Trust Corp | 0.00% | 283,739 | $3,333,933 | $3,319,746 | -$14,187 | -0.43% | |
| Castleknight Management Lp | 0.12% | 282,095 | $3,314,616 | $3,300,512 | -$14,105 | -0.43% | |
| Vanguard Fiduciary Trust Co | 0.00% | 225,355 | $2,647,921 | $2,636,654 | -$11,268 | -0.43% | |
| Gratia Capital, Llc | 3.04% | 224,872 | $2,642,246 | $2,631,002 | -$11,244 | -0.43% | |
| Squarepoint Ops Llc | 0.00% | 217,272 | $2,552,946 | $2,542,082 | -$10,864 | -0.43% | |
| Man Group Plc | 0.00% | 207,170 | $2,434,248 | $2,423,889 | -$10,359 | -0.43% | |
| Bridgeway Capital Management, Llc | 0.04% | 206,604 | $2,427,597 | $2,417,267 | -$10,330 | -0.43% | |
| Lsv Asset Management | 0.00% | 199,623 | $2,346,000 | $2,335,589 | -$10,411 | -0.44% | |
| Readystate Asset Management Lp | 0.09% | 192,534 | $2,262,275 | $2,252,648 | -$9,627 | -0.43% | |
| Private Management Group Inc | 0.06% | 186,728 | $2,194,054 | $2,184,718 | -$9,336 | -0.43% | |
| Norges Bank | 0.00% | 180,500 | $2,120,875 | $2,111,850 | -$9,025 | -0.43% | |
| Trexquant Investment Lp | 0.01% | 175,176 | $2,058,318 | $2,049,559 | -$8,759 | -0.43% | |
| State Of Wisconsin Investment Board | 0.00% | 164,888 | $1,937,434 | $1,929,190 | -$8,244 | -0.43% | |
| Healthcare Of Ontario Pension Plan Trust Fund | 0.00% | 161,600 | $1,898,800 | $1,890,720 | -$8,080 | -0.43% | |
| Tudor Investment Corp Et Al | 0.01% | 147,495 | $1,733,066 | $1,725,692 | -$7,375 | -0.43% |
Frequently asked questions about MAGN
Who owns the most MAGN stock?
The largest holders of MAGN are typically major institutional investors such as asset managers and hedge funds reporting on Form 13F. The table above ranks tracked superinvestors by reported position size using the latest available filings for MAGNERA CORPORATION (MAGN).
Is MAGN widely held by superinvestors?
Many widely followed stocks like MAGN appear across numerous superinvestor portfolios because of liquidity, index inclusion, and fundamentals. The holder count and table above show how broadly MAGN is represented among the institutional managers we track.
What do “Current Estimated Value”, “Gain/loss Since Filing”, and “Estimated Portfolio Performance” mean?
Current Estimated Value is reported share quantity from the latest 13F times our most recent split-adjusted U.S. session close. Gain/loss Since Filing is that estimate minus the reported 13F dollar value; Estimated Portfolio Performance is that difference as a percent of the reported value. Green means the estimate is above the filing value; red means below (not purchase cost). If many filers share the same implied filing price per share, the performance % may match across rows. These are not official fund marks or live quotes.