MagneraMAGN

13F holders, Q3 2025 (September 30)
178holders −9
20new positions
27sold out
4famous investors
$11.72avg. 13F price*

At the end of Q3 2025, 178 institutions reported holding Magnera Corp. (MAGN) in their 13F filings, down 9 from Q2 2025. 20 opened new positions and 27 sold out. The largest holders were Littlejohn & Co. LLC ($37.6M), Madison Avenue Partners, LP ($33.2M) and Engine Capital Management, LP ($31.7M). 4 famous investors held it, including Ken Griffin (0.0% of Citadel Advisors's portfolio), David E. Shaw (0.0% of D. E. Shaw & Co.'s portfolio) and Israel Englander (0.0% of Millennium Management's portfolio).

Company
Magnera Corp.
CUSIP
55939A107
Latest filing quarter
Q2 2026

History

Number of 13F holders

050100150200250 Q3 2024: 4Q3 2024Q4 2024: 231Q4 2024Q1 2025: 214Q1 2025Q2 2025: 187Q2 2025Q3 2025: 178Q3 2025Q4 2025: 187Q4 2025Q1 2026: 174Q1 2026Q2 2026: 178Q2 2026

Total Exit/New Position Q2 2025 → Q3 2025

InstitutionsTotal Value
New Positions20$12.1M
Exits27$37.0M

All 13F filers, Q2 2025 → Q3 2025: 4,037,208 shares bought and 6,850,321 shares sold, net −2,813,113 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.

Ownership 178 holders

Littlejohn & Co. LLC 18.96% Add +14.3% 3,204,726 $37.6M
Madison Avenue Partners, LP 1.98% Reduce -15.3% 2,832,281 $33.2M
Engine Capital Management, LP 3.76% Add +8.9% 2,702,041 $31.7M
BlackRock, Inc. 0.00% Reduce -1.8% 2,498,522 $29.3M
Newtyn Management, LLC 3.24% Reduce -0.5% 2,260,000 $26.5M
Vanguard Group Inc. 0.00% Reduce -9.6% 2,143,848 $25.1M
Ancora Advisors LLC 0.41% Reduce -9.8% 1,737,788 $20.4M
Morgan Stanley 0.00% Reduce -19.8% 1,568,548 $18.4M
DG Capital Management, LLC 8.89% Add +32.5% 1,164,718 $13.7M
Goldman Sachs Group Inc. 0.00% Add +2.9% 840,532 $9.9M
Canyon Capital Advisors LLC 1.30% No change 810,000 $9.5M
Geode Capital Management, LLC 0.00% Reduce -3.5% 755,760 $8.9M
Assenagon Asset Management S.A. 0.01% Add +118.1% 753,906 $8.8M
Black Diamond Capital Management I, LLLP 5.84% — 750,000 $8.8M
UBS Group AG 0.00% Reduce -37.3% 689,481 $8.1M
State Street Corp. 0.00% Add +22.9% 643,600 $7.5M
Brightline Capital Management, LLC 2.69% Add +0.9% 560,000 $6.6M
FMR LLC 0.00% Add +18.1% 518,626 $6.1M
Citadel Advisors 0.00% Add +479.9% 474,722 $5.6M
Diameter Capital Partners LP 0.57% No change 460,313 $5.4M
J. Goldman & Co LP 0.19% Reduce -14.1% 438,697 $5.1M
Empyrean Capital Partners, LP 0.23% Reduce -7.1% 436,260 $5.1M
Ameriprise Financial Inc. 0.00% Reduce -0.7% 427,992 $5.0M
Royal Bank of Canada 0.00% Reduce -18.2% 418,225 $4.9M
LSV Asset Management 0.01% Reduce -32.5% 374,750 $4.4M
Loews Corp 0.04% No change 360,500 $4.2M
Weiss Asset Management LP 0.07% Add +94.0% 338,230 $4.0M
Bracebridge Capital, LLC 1.62% New 316,854 $3.7M
Turtle Creek Asset Management Inc. 0.11% No change 314,733 $3.7M
Gratia Capital, LLC 3.27% No change 314,627 $3.7M
Seven Six Capital Management, LLC 3.59% Add +2.1% 310,768 $3.6M
Northern Trust Corp. 0.00% Reduce -1.0% 292,038 $3.4M
Charles Schwab Investment Management Inc. 0.00% Add +29.0% 289,164 $3.4M
Russell Investments Group, Ltd. 0.00% Reduce -7.1% 261,944 $3.1M
D. E. Shaw & Co. 0.00% Reduce -43.1% 259,209 $3.0M
CastleKnight Management LP 0.16% Add +87.1% 256,000 $3.0M
Dimensional Fund Advisors LP 0.00% Reduce -49.1% 254,757 $3.0M
Alpine Global Management, LLC 0.71% Add +129.5% 229,456 $2.7M
Readystate Asset Management LP 0.24% Add +60.9% 210,350 $2.5M
Millennium Management 0.00% Reduce -71.0% 209,088 $2.5M
Clearline Capital LP 0.18% New 177,401 $2.1M
JB Capital Partners LP 0.34% New 170,000 $2.0M
Jump Financial, LLC 0.03% Add +1070.8% 165,903 $1.9M
Jacobs Levy Equity Management, Inc. 0.01% New 149,042 $1.7M
UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 0.00% Reduce -17.3% 121,634 $1.4M
ING Groep NV 0.01% No change 110,000 $1.3M
Bank of New York Mellon Corp 0.00% Add +7.0% 88,764 $1.0M
Invesco Ltd. 0.00% Add +30.8% 88,700 $1.0M
HighVista Strategies LLC 0.25% Reduce -12.6% 87,100 $1.0M
State of Wisconsin Investment Board 0.00% Add +139.5% 84,987 $996K
Bank of America Corp. 0.00% Reduce -63.2% 77,916 $913K
Nuveen, LLC 0.00% Reduce -63.4% 76,962 $902K
Cubist Systematic Strategies, LLC 0.01% Add +54.2% 72,455 $849K
Tocqueville Asset Management L.P. 0.01% Reduce -33.3% 70,000 $820K
Bridgeway Capital Management, LLC 0.02% Add +12.1% 69,706 $817K
Trexquant Investment LP 0.01% Reduce -47.4% 66,378 $778K
Empowered Funds, LLC 0.01% Add +12.9% 65,860 $772K
Swiss National Bank 0.00% No change 61,631 $722K
JPMorgan Chase & Co. 0.00% Add +119.7% 55,803 $654K
BNP Paribas Financial Markets 0.00% Add +1675.8% 55,084 $646K
RBF Capital, LLC 0.03% No change 53,992 $633K
Rhumbline Advisers 0.00% Reduce -4.1% 49,179 $576K
Barclays PLC 0.00% Reduce -24.5% 46,955 $550K
AlphaQuest LLC 0.03% Add +920.4% 44,090 $517K
Atom Investors LP 0.04% New 43,441 $509K
Knightsbridge Asset Management, LLC 0.08% Add +3.9% 38,719 $454K
ExodusPoint Capital Management, LP 0.01% Add +199.6% 37,010 $434K
Alliancebernstein L.P. 0.00% Add +73.1% 36,938 $433K
Caption Management, LLC 0.03% New 35,753 $419K
Point72 Asset Management 0.00% Add +34.2% 34,970 $410K
Tactive Advisors, LLC 0.12% Add +91.5% 34,778 $408K
Legal & General Group Plc 0.00% No change 34,639 $406K
TAM Capital Management Inc. 0.20% Reduce -65.4% 34,038 $399K
Bluefin Capital Management, LLC 0.21% Reduce -45.0% 34,037 $399K
California State Teachers Retirement System 0.00% Add +0.0% 32,330 $379K
Marshall Wace, LLP 0.00% New 28,666 $336K
Wells Fargo & Company 0.00% Add +11.7% 28,487 $334K
Deutsche Bank AG 0.00% Add +5.7% 27,872 $327K
Quantbot Technologies LP 0.01% Add +130.5% 27,715 $325K
Raymond James Financial Inc. 0.00% Reduce -14.1% 26,968 $316K
Squarepoint Ops LLC 0.00% New 26,686 $313K
Brown Advisory Inc. 0.00% Reduce -4.9% 23,914 $280K
Two Sigma Advisers, LP 0.00% Reduce -1.3% 22,864 $268K
Universal- Beteiligungs- und Servicegesellschaft mbH 0.00% Add +5.8% 19,641 $230K
T. Rowe Price Associates Inc. 0.00% Add +6.2% 17,701 $208K
Glenmede Investment Management, LP 0.00% Reduce -0.1% 17,692 $207K
Y-Intercept (Hong Kong) Ltd 0.01% Reduce -72.4% 17,622 $207K
Public Employees Retirement System of Ohio 0.00% Add +2078.6% 17,538 $206K
Brevan Howard Capital Management LP 0.00% New 17,279 $203K
MetLife Investment Management, LLC 0.00% Reduce -21.1% 16,013 $188K
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. 0.00% Reduce -14.4% 15,614 $183K
Zurcher Kantonalbank (Zurich Cantonalbank) 0.00% Add +55.6% 14,694 $172K
Graham Capital Management, L.P. 0.01% New 14,376 $168K
Atria Investments, Inc 0.00% Reduce -0.5% 14,285 $167K
Diametric Capital, LP 0.06% Reduce -22.9% 14,235 $167K
Janus Henderson Group PLC 0.00% No change 13,741 $161K
Intech Investment Management LLC 0.00% Reduce -18.3% 13,121 $154K
Gsa Capital Partners LLP 0.01% New 13,033 $153K
Catalyst Funds Management Pty Ltd 0.02% Reduce -63.0% 12,600 $148K
First Trust Advisors LP 0.00% New 11,879 $139K
Manufacturers Life Insurance Company, The 0.00% Reduce -6.7% 11,367 $133K
Fox Run Management, L.L.C. 0.02% New 11,022 $129K
New York State Common Retirement Fund 0.00% No change 10,500 $123K
Police & Firemen's Retirement System of New Jersey 0.00% Add +33.3% 10,164 $119K
Valeo Financial Advisors, LLC 0.00% Add +0.6% 10,055 $118K
South Dakota Investment Council 0.00% Reduce -7.4% 8,769 $103K
Citigroup Inc. 0.00% Reduce -45.3% 8,509 $100K
Aquatic Capital Management LLC 0.00% New 8,435 $99K
KLP Kapitalforvaltning As 0.00% No change 6,355 $74K
FNY Investment Advisers, LLC 0.02% Reduce -2.3% 4,300 $50K
Ameritas Investment Partners, Inc. 0.00% No change 3,399 $40K
Public Employees Retirement Association of Colorado 0.00% No change 3,166 $37K
Point72 (DIFC) Ltd 0.00% New 3,011 $35K
Sterling Capital Management LLC 0.00% Add +155.5% 2,297 $27K
Tower Research Capital LLC (TRC) 0.00% Add +125.6% 1,963 $23K
National Bank of Canada 0.00% Reduce -13.8% 1,894 $22K
Mitsubishi UFJ Asset Management Co., Ltd. 0.00% No change 1,694 $20K
Simplex Trading, LLC 0.00% Reduce -75.1% 1,402 $16K
EMC Capital Management 0.01% No change 1,200 $14K
Amalgamated Bank 0.00% No change 1,137 $13K
Federation des caisses Desjardins du Quebec 0.00% Reduce -15.5% 991 $12K
Investors Research Corp 0.00% Reduce -2.3% 968 $11K
Caitong International Asset Management Co., Ltd 0.01% Add +321.6% 957 $11K
Financial Consulate, Inc. 0.00% New 844 $10K
CIBC Private Wealth Group LLC 0.00% Reduce -5.0% 762 $9K
Shell Asset Management Co. 0.00% Reduce -68.0% 628 $7K
Comerica Bank 0.00% Reduce -93.9% 579 $7K
Rockefeller Capital Management L.P. 0.00% New 461 $5K
PNC Financial Services Group, Inc. 0.00% Reduce -20.7% 432 $5K
Nisa Investment Advisors, LLC 0.00% Add +4.1% 431 $5K
BNP PARIBAS ASSET MANAGEMENT Holding S.A. 0.00% No change 405 $5K
MAI Capital Management 0.00% Add +334.7% 313 $4K
US Bancorp \de 0.00% Reduce -56.3% 256 $3K
Osaic Holdings, Inc. 0.00% Reduce -61.5% 242 $3K
Quadrant Capital Group LLC 0.00% New 232 $3K
Jones Financial Companies LLLP 0.00% Reduce -3.0% 192 $2K
Allworth Financial LP 0.00% Add +223.9% 149 $2K
Bartlett & Co. Wealth Management LLC 0.00% No change 138 $2K
Global Retirement Partners, LLC 0.00% No change 125 $1K
TD Waterhouse Canada Inc. 0.00% Reduce -6.7% 112 $1K
Arax Advisory Partners 0.00% Add +23.8% 104 $1K
AdvisorNet Financial, Inc 0.00% Reduce -18.6% 92 $1K
Cwm, LLC 0.00% Reduce -61.0% 124 $1K
SBI Securities Co., Ltd. 0.00% No change 85 $996
Sound Income Strategies, LLC 0.00% No change 85 $884
Fifth Third Bancorp 0.00% Reduce -6.1% 62 $727
Brown, Lisle/Cummings, Inc. 0.00% No change 55 $645
Signaturefd, LLC 0.00% Reduce -3.5% 55 $645
Physician Wealth Advisors, Inc. 0.00% No change 54 $633
Parkside Financial Bank & Trust 0.00% Add +750.0% 51 $598
Parallel Advisors, LLC 0.00% Reduce -5.7% 50 $586
Caldwell Sutter Capital, Inc. 0.00% No change 44 $515
IFP Advisors, Inc 0.00% Add +0.0% 35 $410
Natixis 0.00% No change 31 $363
CVA Family Office, LLC 0.00% No change 31 $363
GAMMA Investing LLC 0.00% Reduce -6.7% 28 $328
Sittner & Nelson, LLC 0.00% No change 27 $316
Essential Partners LLC 0.00% New 27 $316
Danske Bank A/S 0.00% No change 27 $316
Versant Capital Management, Inc 0.00% No change 22 $258
Heritage Wealth Advisors 0.00% No change 19 $223
Private Wealth Management Group, LLC 0.00% No change 13 $153
Smartleaf Asset Management LLC 0.00% Add +66.7% 10 $119
WPG Advisers, LLC 0.00% Reduce -23.1% 10 $117
Rothschild Investment LLC 0.00% Reduce -67.7% 10 $117
Winch Advisory Services, LLC 0.00% No change 8 $90
Northwestern Mutual Wealth Management Co. 0.00% Reduce -96.2% 7 $82
LRI Investments, LLC 0.00% Reduce -96.4% 6 $70
Advisory Services Network, LLC 0.00% New 5 $59
Private Trust Co. NA 0.00% No change 4 $47
NewEdge Advisors, LLC 0.00% Reduce -85.0% 3 $35
Farther Finance Advisors, LLC 0.00% No change 3 $35
CENTRAL TRUST Co 0.00% Reduce -85.7% 2 $24
EverSource Wealth Advisors, LLC 0.00% Reduce -85.7% 1 $12
Bell Investment Advisors, Inc 0.00% Reduce -50.0% 1 $12
Bessemer Group Inc. 0.00% Add +13.3% 51 $0
Capital Advisors, Ltd. LLC 0.00% No change 1 $0
Hemington Wealth Management 0.00% Reduce -80.0% 2 $0

"% of holder's portfolio" is MAGN's weight in each manager's 13F, not the share of Magnera Corp. the manager owns.