MAGNERA CORPORATION (55939A107) Top Institutional Shareholders
MAGNERA CORPORATION (55939A107) is currently reported in institutional portfolios tracked by InsiderSet based on the latest available SEC Form 13F filings for the quarter ended March 31, 2026. The institutional investors covered on this page collectively reported approximately $321.13M in 55939A107 holdings during the latest filing period.
Newtyn Management, Llc is currently the largest disclosed institutional shareholder of 55939A107 tracked by InsiderSet, reporting ownership valued at approximately $26.25M in its March 31, 2026 SEC Form 13F filing.
The top 10 institutional shareholders tracked on this page collectively account for approximately 54% of the total disclosed 55939A107 value among the investors covered in this analysis. Major shareholders include Newtyn Management, Llc, Littlejohn & Co Llc, Blackrock, Inc., and several other long-term asset managers with concentrated positions in MAGNERA CORPORATION (55939A107).
This page ranks the largest institutional 55939A107 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
167
Total Reported Value
$321.13M
Largest Holder
Newtyn Management, Llc
Largest Position
$26.25M
Insider Transactions (90d)
0
Latest Filing Quarter
Q1 2026
New Institutional Positions
185
Funds Exiting Positions
0
| Name | Investor/Manager | Portfolio % | Quantity | Reported Balance | Current Estimated Value | Gain/loss Since Filing | Estimated Portfolio Performance |
|---|---|---|---|---|---|---|---|
| Newtyn Management, Llc | 2.80% | 2,760,000 | $26,247,600 | — | — | — | |
| Littlejohn & Co Llc | 21.86% | 2,425,818 | $23,069,529 | — | — | — | |
| Blackrock, Inc. | 0.00% | 2,390,007 | $22,728,968 | — | — | — | |
| Engine Capital Management, Lp | 2.58% | 2,243,827 | $21,338,795 | — | — | — | |
| Morgan Stanley | 0.00% | 1,967,831 | $18,714,085 | — | — | — | |
| Madison Avenue Partners, Lp | 0.66% | 1,590,616 | $15,126,758 | — | — | — | |
| Vanguard Capital Management Llc | 0.00% | 1,533,277 | $14,581,464 | — | — | — | |
| Dg Capital Management, Llc | 4.97% | 1,207,356 | $11,481,956 | — | — | — | |
| Diameter Capital Partners Lp | 2.20% | 1,205,793 | $11,467,091 | — | — | — | |
| D. E. Shaw & Co., Inc. | 0.01% | 896,215 | $8,523,005 | — | — | — | |
| Canyon Capital Advisors Llc | 1.00% | 810,000 | $7,703,100 | — | — | — | |
| Geode Capital Management, Llc | 0.00% | 780,258 | $7,422,246 | — | — | — | |
| Assenagon Asset Management S.A. | 0.01% | 742,425 | $7,060,462 | — | — | — | |
| Clearline Capital Lp | 0.55% | 738,317 | $7,021,395 | — | — | — | |
| State Street Corp | 0.00% | 656,868 | $6,246,815 | — | — | — | |
| Jb Capital Partners Lp | 1.07% | 655,000 | $6,229,050 | — | — | — | |
| Jacobs Levy Equity Management, Inc | 0.02% | 524,890 | $4,991,704 | — | — | — | |
| Ameriprise Financial Inc | 0.00% | 508,525 | $4,836,073 | — | — | — | |
| Russell Investments Group, Ltd. | 0.01% | 507,447 | $4,825,821 | — | — | — | |
| Charles Schwab Investment Management Inc | 0.00% | 453,697 | $4,314,658 | — | — | — | |
| Verition Fund Management Llc | 0.04% | 432,303 | $4,111,202 | — | — | — | |
| J. Goldman & Co Lp | 0.17% | 387,281 | $3,683,042 | — | — | — | |
| Seven Six Capital Management, Llc | 3.83% | 374,868 | $3,564,995 | — | — | — | |
| Goldman Sachs Group Inc | 0.00% | 362,999 | $3,452,120 | — | — | — | |
| Citadel Advisors Llc | 0.00% | 314,819 | $2,993,929 | — | — | — | |
| Vanguard Portfolio Management Llc | 0.00% | 314,409 | $2,990,030 | — | — | — | |
| Bnp Paribas Financial Markets | 0.00% | 304,910 | $2,899,694 | — | — | — | |
| Loews Corp | 0.02% | 300,000 | $2,853,000 | — | — | — | |
| Gratia Capital, Llc | 2.70% | 299,627 | $2,849,453 | — | — | — | |
| Ubs Group Ag | 0.00% | 294,146 | $2,797,328 | — | — | — | |
| Trexquant Investment Lp | 0.02% | 287,304 | $2,732,261 | — | — | — | |
| Tudor Investment Corp Et Al | 0.01% | 269,250 | $2,560,567 | — | — | — | |
| Northern Trust Corp | 0.00% | 254,574 | $2,420,999 | — | — | — | |
| Dimensional Fund Advisors Lp | 0.00% | 253,908 | $2,414,665 | — | — | — | |
| American Century Companies Inc | 0.00% | 221,133 | $2,102,975 | — | — | — | |
| Vanguard Fiduciary Trust Co | 0.00% | 216,581 | $2,059,685 | — | — | — | |
| State Of Wisconsin Investment Board | 0.00% | 202,888 | $1,929,465 | — | — | — | |
| Readystate Asset Management Lp | 0.11% | 202,213 | $1,923,046 | — | — | — | |
| Millennium Management Llc | 0.00% | 199,969 | $1,901,705 | — | — | — | |
| Bridgeway Capital Management, Llc | 0.04% | 198,883 | $1,891,377 | — | — | — | |
| Man Group Plc | 0.00% | 185,430 | $1,763,439 | — | — | — | |
| Castleknight Management Lp | 0.08% | 183,495 | $1,745,037 | — | — | — | |
| Squarepoint Ops Llc | 0.00% | 177,878 | $1,691,620 | — | — | — | |
| Jump Financial, Llc | 0.02% | 173,262 | $1,647,722 | — | — | — | |
| Aqr Capital Management Llc | 0.00% | 145,579 | $1,384,457 | — | — | — | |
| Empowered Funds, Llc | 0.01% | 134,037 | $1,274,692 | — | — | — | |
| Engineers Gate Manager Lp | 0.01% | 121,427 | $1,154,771 | — | — | — | |
| Bank Of New York Mellon Corp | 0.00% | 121,035 | $1,151,043 | — | — | — | |
| Weiss Asset Management Lp | 0.02% | 117,506 | $1,117,482 | — | — | — | |
| Invesco Ltd. | 0.00% | 113,877 | $1,082,970 | — | — | — |
Frequently asked questions about 55939A107
Who owns the most 55939A107 stock?
The largest holders of 55939A107 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 (55939A107).
Is 55939A107 widely held by superinvestors?
Many widely followed stocks like 55939A107 appear across numerous superinvestor portfolios because of liquidity, index inclusion, and fundamentals. The holder count and table above show how broadly 55939A107 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.