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Disclosery

MAGN MAGNERA CORP

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COMMON STOCK (common), issuer CIK 41719

187 managers (189 13F filers) reported a position in MAGN shares at 2025-12-31, 37,451,845 shares in all. 43 filers opened a position and 33 filers sold out during the quarter.

Managers
187
13F filers
189
New
43
Added
51
Reduced
69
Sold out
33
Shares held by filers
37,451,845

Shares held by filers adds up every 13F filer's report, so a share reported by a parent and by its subsidiary counts twice (H9). Managers counts each filer group once.

13D and 13G filers

No 13D or 13G on this security in the data. Structured 13D/G data starts 2024-12-18.

Insider trades

No Form 4 transaction on this security in the data.

13F holders, Q4 2025

Filers in the available 13F reports with a share position at 2025-12-31, filer groups collapsed to one row (method), largest first. Options and principal amounts are left out. A group row states no % of portfolio, since each member reports its own portfolio: the members' percents are listed under it. A value about 1,000 times or 1/1,000 of the price other filers imply is shown as filed but neither ranks the row nor enters a sum.

HolderSharesValue% of portfolioChangeSource
LITTLEJOHN & CO LLC2,593,887$39.3M20.47%-610,83913F-HRTimeline
MORGAN STANLEYin group MORGAN STANLEY2,422,467$36.7M<0.01%+853,91913F-HR/ATimelineGroup
BlackRock, Inc.in group BlackRock, Inc.2,375,925$36M<0.01%-122,59713F-HRTimelineGroup
Newtyn Management, LLC2,360,000$35.7M3.78%+100,00013F-HRTimeline
Engine Capital Management, LPin group Engine Capital Management, LP2,243,827$34M4.69%-458,21413F-HRTimelineGroup
VANGUARD GROUP INCin group VANGUARD GROUP INC2,184,219$33.1M<0.01%+40,37113F-HRTimelineGroup
Madison Avenue Partners, LP1,780,649$27M1.16%-1,051,63213F-HRTimeline
Diameter Capital Partners LP1,205,793$18.3M1.91%+745,48013F-HRTimeline
Jefferies Financial Group Inc.in group Jefferies Financial Group Inc.994,619$15.1M0.12%new13F-HRTimelineGroup
Nuveen, LLCin group TIAA823,177$12.5M<0.01%+746,21513F-HRTimelineGroup
CANYON CAPITAL ADVISORS LLCin group CANYON CAPITAL ADVISORS LLC810,000$12.3M1.61%013F-HRTimelineGroup
D. E. Shaw & Co., Inc.in group D. E. Shaw & Co., Inc.805,693$12.2M0.01%+546,48413F-HRTimelineGroup
GOLDMAN SACHS GROUP INCin group GOLDMAN SACHS GROUP INC788,936$11.9M<0.01%-51,59613F-HR/ATimelineGroup
JACOBS LEVY EQUITY MANAGEMENT, INC786,083$11.9M0.05%+637,04113F-HRTimeline
GEODE CAPITAL MANAGEMENT, LLCin group GEODE CAPITAL MANAGEMENT, LLC745,967$11.3M<0.01%-9,79313F-HRTimelineGroup
Assenagon Asset Management S.A.742,425$11.2M0.02%-11,48113F-HRTimeline
Clearline Capital LP660,605$10M0.75%+483,20413F-HRTimeline
STATE STREET CORPin group STATE STREET CORP640,991$9.7M<0.01%-2,60913F-HRTimelineGroup
SG Americas Securities, LLC557,810$8.45M0.01%new13F-HRTimeline
CITADEL ADVISORS LLCin group CITADEL ADVISORS LLC550,392$8.33M0.01%+75,67013F-HRTimelineGroup
J. Goldman & Co LP538,220$8.15M0.32%+99,52313F-HRTimeline
AMERIPRISE FINANCIAL INCin group AMERIPRISE FINANCIAL INC519,946$7.87M<0.01%+91,95413F-HRTimelineGroup
MILLENNIUM MANAGEMENT LLCin group MILLENNIUM MANAGEMENT LLC518,044$7.84M0.01%+308,95613F-HRTimelineGroup
JB CAPITAL PARTNERS LP515,000$7.8M1.34%+345,00013F-HRTimeline
Ancora Advisors LLCin group Ancora Advisors LLC425,514$6.44M0.13%-1,312,27413F-HRTimelineGroup
CHARLES SCHWAB INVESTMENT MANAGEMENT INCin group Charles Schwab Trust Co402,244$6.09M<0.01%+113,08013F-HRTimelineGroup
UBS Group AGgroup of 2 filers holding392,550$5.94M-418,565Timeline
Russell Investments Group, Ltd.in group Russell Investments Group, Lt…368,309$5.58M0.01%+106,36513F-HRTimelineGroup
LSV ASSET MANAGEMENT335,058$5.07M0.01%-39,69213F-HRTimeline
Verition Fund Management LLC329,931$5M0.03%new13F-HRTimeline
GRATIA CAPITAL, LLC314,627$4.76M4.26%013F-HRTimeline
Loews Corp300,000$4.54M0.04%-60,50013F-HRTimeline
ALGERT GLOBAL LLC290,676$4.4M0.07%new13F-HR/ATimeline
Seven Six Capital Management, LLC281,518$4.26M4.29%-29,25013F-HRTimeline
BNP PARIBAS FINANCIAL MARKETSin group BNP PARIBAS FINANCIAL MARKETS279,930$4.24M<0.01%+224,84613F-HRTimelineGroup
JPMORGAN CHASE & COin group JPMORGAN CHASE & CO251,037$3.8M<0.01%+195,23413F-HRTimelineGroup
Walleye Capital LLCin group Walleye Capital LLC245,997$3.72M0.02%new13F-HRTimelineGroup
NORTHERN TRUST CORPin group NORTHERN TRUST CORP245,654$3.72M<0.01%-46,38413F-HRTimelineGroup
BANK OF AMERICA CORP /DE/in group BANK OF AMERICA CORP /DE/233,565$3.54M<0.01%+155,64913F-HRTimelineGroup
JANE STREET GROUP, LLCin group JANE STREET GROUP, LLC215,920$3.27M<0.01%new13F-HRTimelineGroup
Trexquant Investment LP202,199$3.06M0.03%+135,82113F-HRTimeline
CastleKnight Management LP183,495$2.78M0.16%-72,50513F-HRTimeline
Point72 Asset Management, L.P.in group Point72 Asset Management, L.P.173,366$2.62M<0.01%+138,39613F-HRTimelineGroup
Invesco Ltd.in group Invesco Ltd.161,834$2.45M<0.01%+73,13413F-HRTimelineGroup
Jump Financial, LLCin group Jump Financial, LLC160,113$2.42M0.03%-5,79013F-HRTimelineGroup
Squarepoint Ops LLCin group Squarepoint Ops LLC158,450$2.4M<0.01%+131,76413F-HRTimelineGroup
TUDOR INVESTMENT CORP ET AL155,016$2.35M0.01%new13F-HRTimeline
FMR LLCin group FMR LLC133,962$2.03M<0.01%-384,66413F-HRTimelineGroup
Weiss Asset Management LPin group Weiss Asset Management LP132,764$2.01M0.03%-205,46613F-HRTimelineGroupThe filing omitted confidential holdings, a later amendment may add them.
GSA CAPITAL PARTNERS LLP128,095$1.94M0.17%+115,06213F-HRTimeline
SUSQUEHANNA INTERNATIONAL GROUP, LLPgroup of 2 filers holding124,740$1.89MnewTimeline
DIMENSIONAL FUND ADVISORS LPin group DIMENSIONAL FUND ADVISORS LP122,136$1.85M<0.01%-132,62113F-HRTimelineGroup
HEALTHCARE OF ONTARIO PENSION PLAN TRUS…120,715$1.83M<0.01%new13F-HRTimeline
Quantbot Technologies LP111,506$1.69M0.06%+83,79113F-HRTimeline
ING GROEP NV110,000$1.67M0.01%013F-HRTimeline
READYSTATE ASSET MANAGEMENT LP94,131$1.43M0.06%-116,21913F-HRTimeline
STATE OF WISCONSIN INVESTMENT BOARD92,405$1.4M<0.01%+7,41813F-HRTimeline
Engineers Gate Manager LP87,882$1.33M0.02%new13F-HRTimeline
Bank of New York Mellon Corpin group Bank of New York Mellon Corp87,600$1.33M<0.01%-1,16413F-HRTimelineGroup
Quinn Opportunity Partners LLC85,868$1.3M0.06%new13F-HRTimeline
Man Group plcin group Man Group plc85,382$1.29M<0.01%new13F-HRTimelineGroup
BRIDGEWAY CAPITAL MANAGEMENT, LLC76,789$1.16M0.02%+7,08313F-HRTimeline
Empowered Funds, LLC72,943$1.1M0.02%+7,08313F-HR/ATimeline
ARISTEIA CAPITAL, L.L.C.62,996$954K0.03%new13F-HRTimeline
PUBLIC EMPLOYEES RETIREMENT SYSTEM OF O…57,869$876K<0.01%+40,33113F-HRTimeline
ExodusPoint Capital Management, LP56,025$848K0.01%+19,01513F-HRTimeline
Counterpoint Mutual Funds LLC54,410$824K0.06%new13F-HRTimeline
RBF Capital, LLC53,992$817K0.04%013F-HR/ATimeline
Voleon Capital Management LP52,218$791K0.02%new13F-HRTimeline
Alpine Global Management, LLC50,000$757K0.17%-179,45613F-HR/ATimeline
BARCLAYS PLCin group BARCLAYS PLC49,805$754K<0.01%+2,85013F-HRTimelineGroup
OXFORD ASSET MANAGEMENT LLP42,188$639K0.23%new13F-HRTimelineThe filing omitted confidential holdings, a later amendment may add them.
RHUMBLINE ADVISERS41,110$622K<0.01%-8,06913F-HRTimeline
Jain Global LLC38,869$588K0.01%new13F-HRTimeline
XTX Topco Ltdin group XTX Topco Ltd38,481$583K0.02%new13F-HRTimelineGroup
WELLS FARGO & COMPANY/MNin group WELLS FARGO & COMPANY/MN37,927$574K<0.01%+9,44013F-HRTimelineGroup
KNIGHTSBRIDGE ASSET MANAGEMENT, LLC37,289$565K0.09%-1,43013F-HRTimeline
DG Capital Management, LLC36,775$557K0.45%-1,127,94313F-HRTimeline
ALLIANCEBERNSTEIN L.P.35,534$538K<0.01%-1,40413F-HRTimeline
AXQ CAPITAL, LP34,770$526K0.12%new13F-HRTimeline
MARSHALL WACE, LLPin group MARSHALL WACE, LLP32,623$494K<0.01%+3,95713F-HRTimelineGroup
PRICE T ROWE ASSOCIATES INC /MD/31,277$474K<0.01%+13,57613F-HRTimeline
TWO SIGMA ADVISERS, LPin group TWO SIGMA INVESTMENTS, LP31,052$470K<0.01%+8,18813F-HRTimelineGroup
Tactive Advisors, LLC30,469$461K0.14%-4,30913F-HRTimeline
PharVision Advisers, LLC29,209$442K0.22%new13F-HRTimeline
CITIGROUP INCin group CITIGROUP INC29,011$439K<0.01%+20,50213F-HRTimelineGroup
Y-Intercept (Hong Kong) Ltd28,179$427K0.01%+10,55713F-HRTimeline
RAYMOND JAMES FINANCIAL INCin group RAYMOND JAMES FINANCIAL INC26,864$407K<0.01%-10413F-HRTimelineGroup
DEUTSCHE BANK AG\in group DEUTSCHE BANK AG\25,271$383K<0.01%-2,60113F-HRTimelineGroup
Atom Investors LP22,994$348K0.03%-20,44713F-HRTimeline
Aquatic Capital Management LLC22,938$347K0.01%+14,50313F-HRTimeline
BROWN ADVISORY INCin group BROWN ADVISORY INC22,054$334K<0.01%-1,86013F-HRTimelineGroup
Dynamic Technology Lab Private Ltd21,450$325K0.07%new13F-HRTimeline
Creative Planningin group Creative Planning19,694$298K<0.01%new13F-HRTimelineGroup
Universal- Beteiligungs- und Serviceges…in group Universal- Beteiligungs- und …18,567$281K<0.01%-1,07413F-HRTimelineGroup
FRANKLIN RESOURCES INCin group Franklin Resources18,490$280K<0.01%new13F-HRTimelineGroup
AlphaQuest LLC18,359$278K0.02%-25,73113F-HRTimeline
GLENMEDE TRUST CO NAin group GLENMEDE TRUST CO NA17,730$268K<0.01%13F-HRTimelineGroup
Schonfeld Strategic Advisors LLC16,576$251K<0.01%new13F-HRTimeline
MetLife Investment Management, LLCin group MetLife Investment Management…16,411$248K<0.01%+39813F-HRTimelineGroup
Versor Investments LP15,600$236K0.04%new13F-HRTimeline
Atria Investments, Inc15,566$236K<0.01%+1,28113F-HRTimeline
PRELUDE CAPITAL MANAGEMENT, LLC15,539$235K0.02%new13F-HRTimeline
CANADA PENSION PLAN INVESTMENT BOARD15,200$230K<0.01%new13F-HRTimeline
LAZARD ASSET MANAGEMENT LLCin group LAZARD ASSET MANAGEMENT LLC15,030$228K<0.01%new13F-HRTimelineGroup
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.in group Mirae Asset Global Investment…14,816$224K<0.01%-79813F-HRTimelineGroup
SEI INVESTMENTS COin group SEI INVESTMENTS CO14,547$221K<0.01%new13F-HRTimelineGroup
INCEPTIONR LLC13,227$200K0.06%new13F-HRTimeline
INTECH INVESTMENT MANAGEMENT LLC13,088$198K<0.01%-3313F-HRTimeline
Catalyst Funds Management Pty Ltd12,600$191K0.04%013F-HRTimeline
SIMPLEX TRADING, LLC11,643$176K<0.01%+10,24113F-HRTimeline
WINTON GROUP Ltdin group WINTON GROUP Ltd10,600$160K0.01%new13F-HRTimelineGroup
NEW YORK STATE COMMON RETIREMENT FUND10,500$159K<0.01%013F-HRTimeline
Police & Firemen's Retirement System of…10,164$154K<0.01%013F-HRTimeline
Valeo Financial Advisors, LLC10,000$151K<0.01%-5513F-HRTimeline
Caption Management, LLC9,376$142K0.01%-26,37713F-HRTimeline
Centiva Capital, LP5,062$76.6K<0.01%new13F-HRTimeline
SageView Advisory Group, LLC4,950$74.9K<0.01%new13F-HRTimeline
ROYAL BANK OF CANADAin group ROYAL BANK OF CANADA3,906$60K<0.01%-414,31913F-HRTimelineGroup
GAMMA Investing LLC3,672$55.6K<0.01%+3,64413F-HRTimeline
Legal & General Group Plcin group Legal & General Group Plc2,756$41.7K<0.01%-31,88313F-HRTimelineGroup
Ameritas Investment Partners, Inc.in group Ameritas Investment Partners,…2,594$39.3K<0.01%-80513F-HRTimelineGroup
South Dakota Investment Council2,051$31K<0.01%-6,71813F-HRTimeline
Quarry LP1,971$29.8K<0.01%new13F-HRTimeline
CALIFORNIA STATE TEACHERS RETIREMENT SY…1,968$29.8K<0.01%-30,36213F-HRTimeline
QUADRANT CAPITAL GROUP LLC1,862$28.2K<0.01%+1,63013F-HRTimeline
Sterling Capital Management LLC1,842$27.9K<0.01%-45513F-HRTimeline
EMC Capital Management1,157$18K0.01%-4313F-HRTimeline
NATIONAL BANK OF CANADA /FI/in group NATIONAL BANK OF CANADA /FI/1,010$15.3K<0.01%-88413F-HRTimelineGroup
AMALGAMATED BANK1,004$15K<0.01%-13313F-HRTimeline
Federation des caisses Desjardins du Qu…936$14.2K<0.01%-5513F-HRTimeline
NISA INVESTMENT ADVISORS, LLC928$14.1K<0.01%+49713F-HRTimeline
Investors Research Corp907$13.7K<0.01%-6113F-HRTimeline
FINANCIAL CONSULATE, INC726$11K<0.01%-11813F-HRTimeline
Tower Research Capital LLC (TRC)in group Tower Research Capital LLC (T…683$10.3K<0.01%-1,28013F-HRTimelineGroup
AdvisorNet Financial, Inc540$8.18K<0.01%+44813F-HRTimeline
Rockefeller Capital Management L.P.in group Rockefeller Capital Managemen…462$7K<0.01%+113F-HR/ATimelineGroup
CIBC Private Wealth Group LLCin group CIBC Bancorp USA Inc.432$6.54K<0.01%-33013F-HRTimelineGroup
COMERICA BANK413$6.26K<0.01%-16613F-HRTimeline
DV Trading LLC400$6.06K<0.01%13F-HRTimeline
PNC Financial Services Group, Inc.in group PNC Financial Services Group,…380$5.75K<0.01%-5213F-HRTimelineGroup
Red Tortoise LLC314$4.75K<0.01%new13F-HRTimeline
US BANCORP \DE\in group US BANCORP \DE\307$4.65K<0.01%+5113F-HRTimelineGroup
Global Retirement Partners, LLC290$4.39K<0.01%+16513F-HRTimeline
CWM, LLCin group CWM, LLC276$4K<0.01%+15213F-HRTimelineGroup
FNY Investment Advisers, LLC265$4K<0.01%-4,03513F-HRTimeline
GROUP ONE TRADING LLC255$3.86K<0.01%new13F-HRTimeline
Optiver Holding B.V.in group Optiver Holding B.V.224$3.39K<0.01%new13F-HRTimelineGroup
Allworth Financial LP212$3.21K<0.01%+6313F-HRTimeline
BARTLETT & CO. WEALTH MANAGEMENT LLC138$2.09K<0.01%013F-HRTimeline
Parallel Advisors, LLC133$2.01K<0.01%+8313F-HRTimeline
OSAIC HOLDINGS, INC.in group OSAIC HOLDINGS, INC.111$1.68K<0.01%-13113F-HRTimelineGroup
TD Waterhouse Canada Inc.107$1.62K<0.01%-513F-HRTimeline
LOS ANGELES CAPITAL MANAGEMENT LLC159$1.36K<0.01%new13F-HRTimeline
SBI Securities Co., Ltd.85$1.29K<0.01%013F-HRTimeline
JONES FINANCIAL COMPANIES LLLPin group JONES FINANCIAL COMPANIES LLLP78$1.18K<0.01%-11413F-HRTimelineGroup
Sound Income Strategies, LLC73$1.03K<0.01%-1213F-HRTimeline
Pinnacle Wealth Planning Services, Inc.67$1.01K<0.01%new13F-HRTimeline
MAI Capital Management65$985<0.01%-24813F-HRTimeline
SIGNATUREFD, LLC55$833<0.01%013F-HRTimeline
Physician Wealth Advisors, Inc.54$818<0.01%013F-HRTimeline
Arax Advisory Partners53$802<0.01%-5113F-HRTimeline
CALDWELL SUTTER CAPITAL, INC.44$665<0.01%013F-HRTimeline
Caitong International Asset Management …39$590<0.01%-91813F-HR/ATimeline
IFP Advisors, Inc33$500<0.01%-213F-HRTimeline
Steigerwald, Gordon & Koch Inc.33$500<0.01%new13F-HRTimeline
ROTHSCHILD INVESTMENT LLC30$454<0.01%+2013F-HRTimeline
SITTNER & NELSON, LLC27$402<0.01%013F-HRTimeline
MidFirst Bank21$318<0.01%13F-HRTimeline
Smartleaf Asset Management LLC10$162<0.01%013F-HRTimeline
WPG Advisers, LLC10$151<0.01%013F-HRTimeline
Versant Capital Management, Inc9$136<0.01%-1313F-HRTimeline
BROWN BROTHERS HARRIMAN & COin group BROWN BROTHERS HARRIMAN & CO8$121<0.01%new13F-HRTimelineGroup
Winch Advisory Services, LLC8$116<0.01%013F-HRTimeline
NORTHWESTERN MUTUAL WEALTH MANAGEMENT COin group NORTHWESTERN MUTUAL INVESTMEN…7$106<0.01%013F-HR/ATimelineGroup
Private Wealth Management Group, LLC7$106<0.01%-613F-HRTimeline
Eurizon Capital SGR S.p.A.7$106<0.01%13F-HRTimeline
Parkside Financial Bank & Trust6$91<0.01%-4513F-HRTimeline
FIFTH THIRD BANCORPin group FIFTH THIRD BANK, NATIONAL AS…4$61<0.01%-5813F-HRTimelineGroup
NewEdge Advisors, LLC3$45<0.01%013F-HRTimeline
EverSource Wealth Advisors, LLCin group EverSource Wealth Advisors, L…1$15<0.01%013F-HRTimelineGroup
Farther Finance Advisors, LLC1$15<0.01%-213F-HRTimeline
Hughes Financial Services, LLC1$15<0.01%new13F-HRTimeline
BESSEMER GROUP INCin group BESSEMER GROUP INC34$00%-1713F-HRTimelineGroupValue filed as zero, left out of ratios.
Capital Advisors, Ltd. LLC1$00%013F-HRTimelineValue filed as zero, left out of ratios.
Covestor Ltd0$00%013F-HRTimelineValue filed as zero, left out of ratios. Amount filed as zero, left out of ratios.
Erste Asset Management GmbHin group Erste Asset Management GmbH0$00%013F-HRTimelineGroupValue filed as zero, left out of ratios. Amount filed as zero, left out of ratios.