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Disclosery

MAGN MAGNERA CORP

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COMMON STOCK (common), issuer CIK 41719

179 managers (180 13F filers) reported a position in MAGN shares at 2025-09-30, 36,784,586 shares in all. 20 filers opened a position and 29 filers sold out during the quarter.

Managers
179
13F filers
180
New
20
Added
51
Reduced
71
Sold out
29
Shares held by filers
36,784,586

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, Q3 2025

Filers in the available 13F reports with a share position at 2025-09-30, 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 LLC3,204,726$37.6M18.96%+400,74213F-HRTimeline
Madison Avenue Partners, LP2,832,281$33.2M1.98%-511,72413F-HRTimeline
Engine Capital Management, LPin group Engine Capital Management, LP2,702,041$31.7M3.76%+220,72413F-HRTimelineGroup
BlackRock, Inc.in group BlackRock, Inc.2,498,522$29.3M<0.01%-45,47613F-HRTimelineGroup
Newtyn Management, LLC2,260,000$26.5M3.24%-11,50013F-HRTimeline
VANGUARD GROUP INCin group VANGUARD GROUP INC2,143,848$25.1M<0.01%-226,58013F-HRTimelineGroup
Ancora Advisors LLCin group Ancora Advisors LLC1,737,788$20.4M0.41%-189,55513F-HRTimelineGroup
MORGAN STANLEYin group MORGAN STANLEY1,568,548$18.4M<0.01%-386,53213F-HR/ATimelineGroup
DG Capital Management, LLC1,164,718$13.7M7.89%+285,86913F-HRTimeline
GOLDMAN SACHS GROUP INCin group GOLDMAN SACHS GROUP INC840,532$9.85M<0.01%+23,98213F-HRTimelineGroup
UBS Group AGgroup of 2 filers holding811,115$9.51M-435,514Timeline
CANYON CAPITAL ADVISORS LLCin group CANYON CAPITAL ADVISORS LLC810,000$9.49M1.3%013F-HRTimelineGroup
GEODE CAPITAL MANAGEMENT, LLCin group GEODE CAPITAL MANAGEMENT, LLC755,760$8.86M<0.01%-27,65313F-HRTimelineGroup
Assenagon Asset Management S.A.753,906$8.84M0.01%+408,18113F-HRTimeline
Black Diamond Capital Management I, LLLP750,000$8.79M5.84%13F-HRTimeline
STATE STREET CORPin group STATE STREET CORP643,600$7.54M<0.01%+119,93913F-HRTimelineGroup
BRIGHTLINE CAPITAL MANAGEMENT, LLC560,000$6.56M2.69%+5,00013F-HRTimeline
FMR LLCin group FMR LLC518,626$6.08M<0.01%+79,59113F-HRTimelineGroup
CITADEL ADVISORS LLCin group CITADEL ADVISORS LLC474,722$5.56M<0.01%+392,85313F-HRTimelineGroup
Diameter Capital Partners LP460,313$5.39M0.57%013F-HRTimeline
J. Goldman & Co LP438,697$5.14M0.19%-71,82213F-HRTimeline
Empyrean Capital Partners, LP436,260$5.11M0.21%-33,47013F-HRTimeline
AMERIPRISE FINANCIAL INCin group AMERIPRISE FINANCIAL INC427,992$5.02M<0.01%-3,07713F-HRTimelineGroup
ROYAL BANK OF CANADAin group ROYAL BANK OF CANADA418,225$4.9M<0.01%-93,26113F-HRTimelineGroup
LSV ASSET MANAGEMENT374,750$4.39M0.01%-180,09413F-HRTimeline
Loews Corp360,500$4.23M0.04%013F-HRTimeline
Weiss Asset Management LPin group Weiss Asset Management LP338,230$3.96M0.06%+163,84513F-HRTimelineGroupThe filing omitted confidential holdings, a later amendment may add them.
Bracebridge Capital, LLC316,854$3.71M1.55%new13F-HRTimeline
TURTLE CREEK ASSET MANAGEMENT INC.314,733$3.69M0.11%013F-HRTimeline
GRATIA CAPITAL, LLC314,627$3.69M3.27%013F-HRTimeline
Seven Six Capital Management, LLC310,768$3.64M3.59%+6,30013F-HRTimeline
NORTHERN TRUST CORPin group NORTHERN TRUST CORP292,038$3.42M<0.01%-2,91813F-HRTimelineGroup
CHARLES SCHWAB INVESTMENT MANAGEMENT INCin group Charles Schwab Trust Co289,164$3.39M<0.01%+65,01713F-HRTimelineGroup
Russell Investments Group, Ltd.in group Russell Investments Group, Lt…261,944$3.07M<0.01%-19,90613F-HRTimelineGroup
D. E. Shaw & Co., Inc.in group D. E. Shaw & Co., Inc.259,209$3.04M<0.01%-196,59513F-HRTimelineGroup
CastleKnight Management LP256,000$3M0.16%+119,20013F-HRTimeline
DIMENSIONAL FUND ADVISORS LPin group DIMENSIONAL FUND ADVISORS LP254,757$2.99M<0.01%-245,51713F-HRTimelineGroup
Alpine Global Management, LLC229,456$2.69M0.55%+129,45613F-HR/ATimeline
READYSTATE ASSET MANAGEMENT LP210,350$2.47M0.12%+79,62913F-HRTimeline
MILLENNIUM MANAGEMENT LLCin group MILLENNIUM MANAGEMENT LLC209,088$2.45M<0.01%-511,17113F-HRTimelineGroup
Clearline Capital LP177,401$2.08M0.18%new13F-HRTimeline
JB CAPITAL PARTNERS LP170,000$1.99M0.34%new13F-HRTimeline
Jump Financial, LLCin group Jump Financial, LLC165,903$1.94M0.02%+151,73313F-HR/ATimelineGroup
JACOBS LEVY EQUITY MANAGEMENT, INC149,042$1.75M0.01%new13F-HRTimeline
ING GROEP NV110,000$1.29M0.01%013F-HRTimeline
Bank of New York Mellon Corpin group Bank of New York Mellon Corp88,764$1.04M<0.01%+5,82113F-HRTimelineGroup
Invesco Ltd.in group Invesco Ltd.88,700$1.04M<0.01%+20,89213F-HRTimelineGroup
HighVista Strategies LLC87,100$1.02M0.25%-12,60013F-HRTimeline
STATE OF WISCONSIN INVESTMENT BOARD84,987$996K<0.01%+49,50513F-HRTimeline
BANK OF AMERICA CORP /DE/in group BANK OF AMERICA CORP /DE/77,916$913K<0.01%-133,81913F-HR/ATimelineGroup
Nuveen, LLCin group TIAA76,962$902K<0.01%-133,51213F-HRTimelineGroup
Cubist Systematic Strategies, LLC72,455$849K0.01%+25,45813F-HRTimeline
TOCQUEVILLE ASSET MANAGEMENT L.P.in group TOCQUEVILLE ASSET MANAGEMENT …70,000$820K0.01%-35,00013F-HRTimelineGroup
BRIDGEWAY CAPITAL MANAGEMENT, LLC69,706$817K0.02%+7,54413F-HRTimeline
Trexquant Investment LP66,378$778K0.01%-59,87213F-HRTimeline
Empowered Funds, LLC65,860$772K0.01%+7,54413F-HRTimeline
Swiss National Bank61,631$722K<0.01%013F-HRTimeline
JPMORGAN CHASE & COin group JPMORGAN CHASE & CO55,803$654K<0.01%+30,40413F-HR/ATimelineGroup
BNP PARIBAS FINANCIAL MARKETSin group BNP PARIBAS FINANCIAL MARKETS55,084$646K<0.01%+51,98213F-HRTimelineGroup
RBF Capital, LLC53,992$633K0.03%013F-HRTimeline
RHUMBLINE ADVISERS49,179$576K<0.01%-2,09013F-HRTimeline
BARCLAYS PLCin group BARCLAYS PLC46,955$550K<0.01%-15,27113F-HR/ATimelineGroup
AlphaQuest LLC44,090$517K0.03%+39,76913F-HRTimeline
Atom Investors LP43,441$509K0.04%new13F-HRTimeline
KNIGHTSBRIDGE ASSET MANAGEMENT, LLC38,719$454K0.08%+1,44113F-HRTimeline
ExodusPoint Capital Management, LP37,010$434K0.01%+24,65513F-HRTimeline
ALLIANCEBERNSTEIN L.P.36,938$433K<0.01%+15,60013F-HRTimeline
Caption Management, LLC35,753$419K0.02%new13F-HRTimeline
Point72 Asset Management, L.P.in group Point72 Asset Management, L.P.34,970$410K<0.01%+8,91413F-HRTimelineGroup
Tactive Advisors, LLC34,778$408K0.12%+16,61213F-HRTimeline
Legal & General Group Plcin group Legal & General Group Plc34,639$406K<0.01%013F-HRTimelineGroup
TAM Capital Management Inc.34,038$399K0.2%-64,41813F-HRTimeline
BLUEFIN CAPITAL MANAGEMENT, LLC34,037$399K0.17%-27,88613F-HRTimeline
CALIFORNIA STATE TEACHERS RETIREMENT SY…32,330$379K<0.01%+113F-HRTimeline
MARSHALL WACE, LLPin group MARSHALL WACE, LLP28,666$336K<0.01%new13F-HRTimelineGroup
WELLS FARGO & COMPANY/MNin group WELLS FARGO & COMPANY/MN28,487$334K<0.01%+2,98013F-HRTimelineGroup
DEUTSCHE BANK AG\in group DEUTSCHE BANK AG\27,872$327K<0.01%+1,50713F-HRTimelineGroup
Quantbot Technologies LP27,715$325K0.01%+15,68913F-HRTimeline
RAYMOND JAMES FINANCIAL INCin group RAYMOND JAMES FINANCIAL INC26,968$316K<0.01%-4,40713F-HRTimelineGroup
Squarepoint Ops LLCin group Squarepoint Ops LLC26,686$313K<0.01%new13F-HRTimelineGroup
BROWN ADVISORY INCin group BROWN ADVISORY INC23,914$280K<0.01%-1,22213F-HRTimelineGroup
TWO SIGMA ADVISERS, LPin group TWO SIGMA INVESTMENTS, LP22,864$268K<0.01%-29613F-HRTimelineGroup
Universal- Beteiligungs- und Serviceges…in group Universal- Beteiligungs- und …19,641$230K<0.01%+1,07413F-HRTimelineGroup
PRICE T ROWE ASSOCIATES INC /MD/17,701$208K<0.01%+1,04013F-HRTimeline
Glenmede Investment Management, LP17,692$207K<0.01%-2313F-HRTimeline
Y-Intercept (Hong Kong) Ltd17,622$207K<0.01%-46,14713F-HRTimeline
PUBLIC EMPLOYEES RETIREMENT SYSTEM OF O…17,538$206K<0.01%+16,73313F-HRTimeline
Brevan Howard Capital Management LPin group Brevan Howard Capital Managem…17,279$203K<0.01%new13F-HRTimelineGroup
MetLife Investment Management, LLCin group MetLife Investment Management…16,013$188K<0.01%-4,27813F-HRTimelineGroup
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.in group Mirae Asset Global Investment…15,614$183K<0.01%-2,61813F-HRTimelineGroup
Zurcher Kantonalbank (Zurich Cantonalba…14,694$172K<0.01%+5,25013F-HRTimeline
Graham Capital Management, L.P.14,376$168K0.01%new13F-HRTimeline
Atria Investments, Inc14,285$167K<0.01%-6613F-HRTimeline
Diametric Capital, LP14,235$167K0.06%-4,24013F-HRTimeline
JANUS HENDERSON GROUP PLCin group Janus Henderson13,741$161K<0.01%013F-HRTimelineGroup
INTECH INVESTMENT MANAGEMENT LLC13,121$154K<0.01%-2,92913F-HRTimeline
GSA CAPITAL PARTNERS LLP13,033$153K0.01%new13F-HRTimeline
Catalyst Funds Management Pty Ltd12,600$148K0.02%-21,48013F-HRTimeline
FIRST TRUST ADVISORS LPin group FIRST TRUST ADVISORS LP11,879$139K<0.01%new13F-HRTimelineGroup
MANUFACTURERS LIFE INSURANCE COMPANY, T…in group MANUFACTURERS LIFE INSURANCE …11,367$133K<0.01%-81513F-HRTimelineGroup
FOX RUN MANAGEMENT, L.L.C.11,022$129K0.02%new13F-HRTimeline
NEW YORK STATE COMMON RETIREMENT FUND10,500$123K<0.01%013F-HRTimeline
Police & Firemen's Retirement System of…10,164$119K<0.01%+2,53813F-HRTimeline
Valeo Financial Advisors, LLC10,055$118K<0.01%+5513F-HRTimeline
South Dakota Investment Council8,769$103K<0.01%-70013F-HRTimeline
CITIGROUP INCin group CITIGROUP INC8,509$99.7K<0.01%-7,04213F-HRTimelineGroup
Aquatic Capital Management LLC8,435$98.9K<0.01%new13F-HRTimeline
KLP KAPITALFORVALTNING AS6,355$74.5K<0.01%013F-HRTimeline
FNY Investment Advisers, LLC4,300$50K0.02%-10013F-HRTimeline
Ameritas Investment Partners, Inc.in group Ameritas Investment Partners,…3,399$39.8K<0.01%013F-HRTimelineGroup
PUBLIC EMPLOYEES RETIREMENT ASSOCIATION…3,166$37K<0.01%013F-HRTimeline
Point72 (DIFC) Ltd3,011$35.3K<0.01%new13F-HRTimeline
Sterling Capital Management LLC2,297$26.9K<0.01%+1,39813F-HRTimeline
Tower Research Capital LLC (TRC)in group Tower Research Capital LLC (T…1,963$23K<0.01%+1,09313F-HRTimelineGroup
NATIONAL BANK OF CANADA /FI/in group NATIONAL BANK OF CANADA /FI/1,894$22.2K<0.01%-30213F-HRTimelineGroup
Mitsubishi UFJ Asset Management Co., Lt…in group Mitsubishi UFJ Trust & Bankin…1,694$19.9K<0.01%013F-HRTimelineGroup
SIMPLEX TRADING, LLC1,402$16K<0.01%-4,23513F-HRTimeline
EMC Capital Management1,200$14K0.01%013F-HRTimeline
AMALGAMATED BANK1,137$13K<0.01%013F-HRTimeline
Federation des caisses Desjardins du Qu…991$11.6K<0.01%-18213F-HRTimeline
Investors Research Corp968$11.3K<0.01%-2313F-HRTimeline
Caitong International Asset Management …957$11.2K0.01%+73013F-HRTimeline
FINANCIAL CONSULATE, INC844$9.89K<0.01%new13F-HRTimeline
CIBC Private Wealth Group LLCin group CIBC Bancorp USA Inc.762$8.93K<0.01%-4013F-HRTimelineGroup
SHELL ASSET MANAGEMENT CO628$7K<0.01%-1,33513F-HRTimeline
COMERICA BANK579$6.78K<0.01%-8,84513F-HRTimeline
Rockefeller Capital Management L.P.in group Rockefeller Capital Managemen…461$5.4K<0.01%new13F-HRTimelineGroup
PNC Financial Services Group, Inc.in group PNC Financial Services Group,…432$5.06K<0.01%-11313F-HRTimelineGroup
NISA INVESTMENT ADVISORS, LLC431$5.05K<0.01%+1713F-HRTimeline
BNP PARIBAS ASSET MANAGEMENT Holding S.…in group BNP PARIBAS ASSET MANAGEMENT …405$5K<0.01%013F-HRTimelineGroup
MAI Capital Management313$3.67K<0.01%+24113F-HRTimeline
US BANCORP \DE\in group US BANCORP \DE\256$3K<0.01%-33013F-HRTimelineGroup
OSAIC HOLDINGS, INC.in group OSAIC HOLDINGS, INC.242$2.92K<0.01%-38613F-HRTimelineGroup
QUADRANT CAPITAL GROUP LLC232$2.72K<0.01%new13F-HRTimeline
JONES FINANCIAL COMPANIES LLLPin group JONES FINANCIAL COMPANIES LLLP192$2.12K<0.01%-613F-HRTimelineGroup
Allworth Financial LP149$1.75K<0.01%+10313F-HRTimeline
BARTLETT & CO. WEALTH MANAGEMENT LLC138$1.62K<0.01%013F-HRTimeline
Global Retirement Partners, LLC125$1.47K<0.01%013F-HRTimeline
TD Waterhouse Canada Inc.112$1.29K<0.01%-813F-HRTimeline
Arax Advisory Partners104$1.22K<0.01%+2013F-HRTimeline
AdvisorNet Financial, Inc92$1.08K<0.01%-2113F-HRTimeline
CWM, LLCin group CWM, LLC124$1K<0.01%-19413F-HRTimelineGroup
SBI Securities Co., Ltd.85$996<0.01%013F-HRTimeline
Sound Income Strategies, LLC85$884<0.01%013F-HRTimeline
FIFTH THIRD BANCORPin group FIFTH THIRD BANK, NATIONAL AS…62$727<0.01%-413F-HRTimelineGroup
BROWN, LISLE/CUMMINGS, INC.55$645<0.01%013F-HRTimeline
SIGNATUREFD, LLC55$645<0.01%-213F-HRTimeline
Physician Wealth Advisors, Inc.54$633<0.01%013F-HRTimeline
Parkside Financial Bank & Trust51$598<0.01%+4513F-HRTimeline
Parallel Advisors, LLC50$586<0.01%-313F-HRTimeline
CALDWELL SUTTER CAPITAL, INC.44$515<0.01%013F-HRTimeline
IFP Advisors, Inc35$410<0.01%+3513F-HR/ATimeline
NATIXISin group Natixis Investment Managers31$363<0.01%013F-HRTimelineGroup
CVA Family Office, LLC31$363<0.01%013F-HRTimeline
GAMMA Investing LLC28$328<0.01%-213F-HRTimeline
DANSKE BANK A/S27$316<0.01%013F-HR/ATimeline
SITTNER & NELSON, LLC27$316<0.01%013F-HRTimeline
Essential Partners LLC27$316<0.01%new13F-HRTimeline
Versant Capital Management, Inc22$258<0.01%013F-HRTimeline
Heritage Wealth Advisors19$223<0.01%013F-HRTimeline
Private Wealth Management Group, LLC13$153<0.01%013F-HRTimeline
Smartleaf Asset Management LLC10$119<0.01%+413F-HRTimeline
ROTHSCHILD INVESTMENT LLC10$117<0.01%-2113F-HRTimeline
WPG Advisers, LLC10$117<0.01%-313F-HRTimeline
Winch Advisory Services, LLC8$90<0.01%013F-HRTimeline
NORTHWESTERN MUTUAL WEALTH MANAGEMENT COin group NORTHWESTERN MUTUAL INVESTMEN…7$82<0.01%-17613F-HRTimelineGroup
LRI Investments, LLC6$70<0.01%-15913F-HRTimeline
Advisory Services Network, LLC5$59<0.01%new13F-HRTimeline
PRIVATE TRUST CO NA4$47<0.01%013F-HRTimeline
NewEdge Advisors, LLC3$35<0.01%-1713F-HRTimeline
Farther Finance Advisors, LLC3$35<0.01%013F-HRTimeline
CENTRAL TRUST Co2$24<0.01%-1213F-HRTimeline
EverSource Wealth Advisors, LLCin group EverSource Wealth Advisors, L…1$12<0.01%-613F-HRTimelineGroup
Bell Investment Advisors, Inc1$12<0.01%-113F-HRTimeline
BESSEMER GROUP INCin group BESSEMER GROUP INC51$00%+613F-HRTimelineGroupValue filed as zero, left out of ratios.
Hemington Wealth Management2$00%-813F-HRTimelineValue 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%-93913F-HRTimelineGroupValue filed as zero, left out of ratios. Amount filed as zero, left out of ratios.