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Disclosery

CSTM CONSTELLIUM SE

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CL A SHS (common), issuer CIK 1563411

303 managers (313 13F filers) reported a position in CSTM shares at 2026-03-31, 124,347,933 shares in all. 80 filers opened a position and 22 filers sold out during the quarter.

Managers
303
13F filers
313
New
80
Added
113
Reduced
84
Sold out
22
Shares held by filers
124,347,933

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, Q1 2026

Filers in the available 13F reports with a share position at 2026-03-31, 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
BlackRock, Inc.in group BlackRock, Inc.12,964,203$319M0.01%-766,09113F-HRTimelineGroup
Bpifrance SAin group Bpifrance SA12,593,903$310M18.71%013F-HRTimelineGroup
FMR LLCin group FMR LLC6,961,768$171M0.01%-3,607,51513F-HRTimelineGroup
VANGUARD GROUP INCgroup of 7 filers holding4,264,954$105MnewTimeline
T. Rowe Price Investment Management, In…3,960,819$97.4M0.07%-373,90813F-HRTimeline
MILLENNIUM MANAGEMENT LLCin group MILLENNIUM MANAGEMENT LLC3,470,091$85.3M0.06%-2,799,77813F-HRTimelineGroup
D. E. Shaw & Co., Inc.in group D. E. Shaw & Co., Inc.3,234,576$79.5M0.06%+179,28513F-HRTimelineGroup
ARROWSTREET CAPITAL, LIMITED PARTNERSHIPin group ARROWSTREET CAPITAL, LIMITED …3,228,027$79.3M0.04%+2,780,26013F-HRTimelineGroup
MORGAN STANLEYin group MORGAN STANLEY3,196,054$78.6M<0.01%-532,06413F-HRTimelineGroup
Nuveen, LLCin group TIAA2,827,731$69.5M0.02%-13,23013F-HRTimelineGroup
STATE STREET CORPin group STATE STREET CORP2,763,495$67.9M<0.01%+102,97713F-HRTimelineGroup
Encompass Capital Advisors LLCin group Encompass Capital Advisors LLC2,477,278$60.9M2.48%-2,180,63713F-HRTimelineGroup
AMERICAN CENTURY COMPANIES INCin group AMERICAN CENTURY COMPANIES INC2,085,479$51.3M0.03%+274,13513F-HRTimelineGroup
AQR CAPITAL MANAGEMENT LLCin group AQR CAPITAL MANAGEMENT LLC2,074,861$51M0.02%+308,35813F-HRTimelineGroup
HEALTHCARE OF ONTARIO PENSION PLAN TRUS…2,056,336$50.5M0.08%+1,849,55413F-HRTimeline
JPMORGAN CHASE & COin group JPMORGAN CHASE & CO2,051,930$47.3M<0.01%-37,48213F-HR/ATimelineGroup
NOMURA ASSET MANAGEMENT CO LTDgroup of 2 filers holding1,916,133$47.1M-31,706Timeline
BRIGHTLINE CAPITAL MANAGEMENT, LLC1,847,000$45.4M13.43%+5,00013F-HRTimeline
ALLIANCEBERNSTEIN L.P.2,317,008$43.7M0.01%+2,178,55813F-HRTimeline
GEODE CAPITAL MANAGEMENT, LLCin group GEODE CAPITAL MANAGEMENT, LLC1,668,451$41M<0.01%+36,87713F-HRTimelineGroup
SG Americas Securities, LLC1,497,460$36.8M0.04%+522,72513F-HRTimeline
WESTWOOD HOLDINGS GROUP INCin group WESTWOOD HOLDINGS GROUP INC1,401,416$34.4M0.25%new13F-HRTimelineGroup
GOLDMAN SACHS GROUP INCin group GOLDMAN SACHS GROUP INC1,371,776$33.7M<0.01%+4,29113F-HRTimelineGroup
UBS Group AGgroup of 2 filers holding1,327,159$32.6M-97,353Timeline
Kinetic Partners Management, LP1,312,400$32.3M1.81%new13F-HRTimeline
ACADIAN ASSET MANAGEMENT LLCin group ACADIAN ASSET MANAGEMENT LLC1,272,871$31.3M0.04%+911,24513F-HRTimelineGroup
BEACONLIGHT CAPITAL, LLC1,171,812$28.8M16.24%-168,12213F-HRTimeline
Point72 Asset Management, L.P.in group Point72 Asset Management, L.P.1,005,203$24.7M0.04%+687,11413F-HRTimelineGroup
NORTHERN TRUST CORPin group NORTHERN TRUST CORP977,583$24M<0.01%+35,72913F-HRTimelineGroup
WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC918,090$22.6M0.07%new13F-HRTimeline
Cannell & Spears LLC909,200$22.3M0.44%-57,84713F-HR/ATimeline
Allianz Asset Management GmbHin group Allianz SE893,937$22M0.03%+717,99013F-HRTimelineGroup
Engineers Gate Manager LP884,103$21.7M0.27%-165,11513F-HRTimeline
Bayberry Capital Partners LP874,000$21.5M7.1%new13F-HRTimeline
BANK OF AMERICA CORP /DE/in group BANK OF AMERICA CORP /DE/851,222$20.9M<0.01%+425,87113F-HRTimelineGroup
Penn Capital Management Company, LLC844,934$20.8M1.61%+479,74013F-HRTimeline
JANE STREET GROUP, LLCin group JANE STREET GROUP, LLC832,491$20.5M0.02%+518,75913F-HRTimelineGroup
Soapstone Management L.P.800,000$19.7M14.01%-550,00013F-HRTimeline
Balyasny Asset Management L.P.in group Balyasny Asset Management795,413$19.6M0.04%+576,03913F-HRTimelineGroup
CHARLES SCHWAB INVESTMENT MANAGEMENT INCin group Charles Schwab Trust Co783,237$19.3M<0.01%-25,62013F-HRTimelineGroup
CITADEL ADVISORS LLCin group CITADEL ADVISORS LLC770,608$18.9M0.01%+643,11813F-HRTimelineGroup
COOPER CREEK PARTNERS MANAGEMENT LLC764,205$18.8M0.9%-235,00413F-HRTimeline
PANAGORA ASSET MANAGEMENT INC704,840$17.3M0.06%+83,65713F-HRTimeline
Mountaineer Partners Management, LLC658,490$16.2M8.04%-22,97413F-HRTimeline
FEDERATED HERMES, INC.in group FEDERATED HERMES, INC.652,658$16M0.03%+355,63713F-HRTimelineGroup
NEW YORK STATE COMMON RETIREMENT FUND570,187$14M0.02%+283,90313F-HRTimeline
Kailix Advisors LLC494,400$13.5M11.83%-483,65713F-HRTimeline
Fisher Asset Management, LLC539,451$13.3M<0.01%+529,27813F-HRTimeline
HRT FINANCIAL LP518,832$12.8M0.03%+202,16513F-HRTimeline
Bridgewater Associates, LP502,971$12.4M0.06%new13F-HRTimeline
ArrowMark Colorado Holdings LLC497,379$12.2M0.32%-106,00013F-HRTimeline
Trexquant Investment LP483,077$11.9M0.09%+96,37713F-HRTimeline
Qube Research & Technologies Ltd470,929$11.6M0.02%new13F-HRTimeline
Russell Investments Group, Ltd.in group Russell Investments Group, Lt…465,397$11.4M0.01%+36,07013F-HRTimelineGroup
JANUS HENDERSON GROUP PLCin group Janus Henderson439,301$10.8M0.01%+389,14713F-HR/ATimelineGroup
Franklin Resourcesgroup of 2 filers holding408,400$10M+73,050Timeline
Hudson Bay Capital Management LPin group Hudson Bay Capital Management…401,989$9.88M0.06%013F-HRTimelineGroup
Bank of New York Mellon Corpin group Bank of New York Mellon Corp397,737$9.78M<0.01%-4,77413F-HRTimelineGroup
DANSKE BANK A/S395,440$9.72M0.02%-41,65913F-HRTimeline
ALGERT GLOBAL LLC358,938$8.82M0.13%-96,92013F-HR/ATimeline
WHITEBOX ADVISORS LLC346,660$8.52M0.12%-153,00013F-HRTimeline
MASSACHUSETTS FINANCIAL SERVICES CO /MA/in group MASSACHUSETTS FINANCIAL SERVI…337,844$8.3M<0.01%+26,31313F-HRTimelineGroup
SummitTX Capital, L.P.330,242$8.12M0.26%-358,33113F-HRTimeline
RAYMOND JAMES FINANCIAL INCin group RAYMOND JAMES FINANCIAL INC328,788$8.08M<0.01%+233,37013F-HRTimelineGroup
BEACON INVESTMENT ADVISORS LLC326,966$8.04M3.03%-95213F-HRTimeline
Hillsdale Investment Management Inc.316,700$7.78M0.21%new13F-HRTimeline
TWO SIGMA INVESTMENTS, LPin group TWO SIGMA INVESTMENTS, LP288,900$7.1M0.01%new13F-HRTimelineGroup
CVFG LLC273,220$6.72M0.83%new13F-HRTimeline
IEQ CAPITAL, LLC266,112$6.54M0.03%+26,98913F-HRTimeline
OCCUDO QUANTITATIVE STRATEGIES LP203,298$6.36M0.35%+25,64813F-HRTimeline
GW&K Investment Management, LLC257,588$6.33M0.06%-9,54313F-HRTimeline
VOLORIDGE INVESTMENT MANAGEMENT, LLC252,168$6.2M0.02%-262,44113F-HRTimeline
Swiss National Bank245,400$6.03M<0.01%-2,20013F-HRTimeline
Creative Planningin group Creative Planning242,751$5.97M<0.01%+49,02613F-HRTimelineGroup
Voleon Capital Management LP239,501$5.89M0.13%-47,08213F-HRTimeline
LSV ASSET MANAGEMENT233,500$5.74M0.01%-15,30013F-HRTimeline
SEI INVESTMENTS COin group SEI INVESTMENTS CO231,774$5.7M0.01%+142,34013F-HRTimelineGroup
Edgestream Partners, L.P.226,292$5.56M0.18%+20,37013F-HRTimeline
BANK OF MONTREAL /CAN/in group BANK OF MONTREAL /CAN/207,106$5.09M<0.01%-31,15213F-HRTimelineGroup
BW Gestao de Investimentos Ltda.207,096$5.09M0.23%-339,17413F-HRTimeline
THORNBURG INVESTMENT MANAGEMENT INC205,467$5.05M0.05%-46,26813F-HRTimeline
KBC Group NVin group KBC Group NV197,790$4.86M0.01%+193,55213F-HRTimelineGroup
Sequoia Financial Advisors, LLC197,198$4.85M0.03%+3,71613F-HRTimeline
STATE OF WISCONSIN INVESTMENT BOARD192,552$4.73M0.01%+95,30713F-HRTimeline
Rockingstone Advisors LLC191,837$4.72M2.16%-27,39013F-HRTimeline
MACKENZIE FINANCIAL CORP181,470$4.46M0.01%+48,82813F-HRTimeline
Ionic Capital Management LLC177,722$4.37M3.67%-40,84413F-HRTimeline
BARCLAYS PLCin group BARCLAYS PLC172,928$4.25M<0.01%-112,11813F-HRTimelineGroup
Connor, Clark & Lunn Investment Managem…168,987$4.15M0.01%+62,03513F-HRTimeline
DEUTSCHE BANK AG\in group DEUTSCHE BANK AG\168,614$4.14M<0.01%+7,81613F-HRTimelineGroup
LGT Fund Management Co Ltd.164,700$4.05M0.18%new13F-HRTimeline
Y-Intercept (Hong Kong) Ltd163,827$4.03M0.08%-220,01613F-HRTimeline
MARTINGALE ASSET MANAGEMENT L P160,598$3.95M0.1%+79,22513F-HRTimeline
RHUMBLINE ADVISERS157,416$3.87M<0.01%-18,39213F-HRTimeline
GSA CAPITAL PARTNERS LLP148,995$3.66M0.23%+124,59213F-HRTimeline
CALIFORNIA STATE TEACHERS RETIREMENT SY…145,732$3.58M<0.01%+28,19113F-HRTimeline
State of Alaska, Department of Revenue140,705$3.46M0.04%013F-HRTimeline
Invesco Ltd.in group Invesco Ltd.135,985$3.34M<0.01%-28,66913F-HRTimelineGroup
Schonfeld Strategic Advisors LLC130,320$3.2M0.03%-39,60613F-HRTimeline
Knights of Columbus Asset Advisors LLC127,663$3.14M0.18%-68713F-HRTimeline
ENVESTNET ASSET MANAGEMENT INCin group ENVESTNET ASSET MANAGEMENT INC125,716$3.09M<0.01%new13F-HRTimelineGroup
MIRABELLA FINANCIAL SERVICES LLP125,350$3.08M0.3%+104,56013F-HRTimeline
Premier Fund Managers Ltd128,865$2.97M0.21%new13F-HRTimeline
Man Group plcin group Man Group plc120,637$2.97M0.01%+3,96813F-HRTimelineGroup
CREDIT AGRICOLE S Ain group CREDIT AGRICOLE S A120,000$2.95M0.01%new13F-HRTimelineGroup
Legal & General Group Plcin group Legal & General Group Plc113,212$2.78M<0.01%-28,97513F-HRTimelineGroup
SUSQUEHANNA INTERNATIONAL GROUP, LLPin group SUSQUEHANNA INTERNATIONAL GRO…111,186$2.73M<0.01%+52,82713F-HRTimelineGroup
Squarepoint Ops LLCin group Squarepoint Ops LLC109,706$2.7M0.01%-96,57513F-HRTimelineGroup
Cetera Investment Advisers107,583$2.64M<0.01%new13F-HRTimeline
LOS ANGELES CAPITAL MANAGEMENT LLC102,806$2.53M0.01%+48,99213F-HRTimeline
CWM, LLCin group CWM, LLC102,443$2.52M0.01%+16,54613F-HRTimelineGroup
MOORE CAPITAL MANAGEMENT, LP101,898$2.5M0.09%-756,05613F-HRTimeline
Mariner, LLCin group Mariner, LLC101,463$2.49M<0.01%+32,66913F-HRTimelineGroup
Numerai GP LLC99,786$2.45M0.25%+58,55813F-HRTimeline
PRICE T ROWE ASSOCIATES INC /MD/98,901$2.43M<0.01%+20,06313F-HRTimeline
AMERIPRISE FINANCIAL INCin group AMERIPRISE FINANCIAL INC98,034$2.41M<0.01%+10,47613F-HR/ATimelineGroup
Mitsubishi UFJ Trust & Banking Corpin group Mitsubishi UFJ Trust & Bankin…96,200$2.36M0.01%+2,65913F-HRTimelineGroup
Cerity Partners LLCin group Cerity Partners LLC95,217$2.34M<0.01%+11,41413F-HRTimelineGroup
WELLS FARGO & COMPANY/MNin group WELLS FARGO & COMPANY/MN95,110$2.34M<0.01%-66,71213F-HR/ATimelineGroup
CITIGROUP INCin group CITIGROUP INC94,857$2.33M<0.01%+34,16413F-HRTimelineGroup
TEACHER RETIREMENT SYSTEM OF TEXAS94,648$2.33M0.01%+80,23913F-HRTimeline
TWINBEECH CAPITAL LP93,141$2.29M0.24%new13F-HRTimeline
Sanctuary Advisors, LLC92,831$2.28M0.01%new13F-HRTimeline
NAVELLIER & ASSOCIATES INC92,662$2.28M0.24%new13F-HRTimeline
PRUDENTIAL FINANCIAL INCin group PRUDENTIAL FINANCIAL INC92,640$2.28M<0.01%new13F-HRTimelineGroup
Quantinno Capital Management LP89,441$2.2M<0.01%+14,97513F-HRTimeline
ZACKS INVESTMENT MANAGEMENT88,898$2.19M0.02%new13F-HRTimeline
State of New Jersey Common Pension Fund…in group State of New Jersey Common Pe…87,134$2.14M0.01%new13F-HRTimelineGroup
LAZARD ASSET MANAGEMENT LLCin group LAZARD ASSET MANAGEMENT LLC87,095$2.14M<0.01%new13F-HRTimelineGroup
ExodusPoint Capital Management, LP85,828$2.11M0.02%-66,36913F-HRTimeline
HSBC HOLDINGS PLCin group HSBC HOLDINGS PLC84,643$2.06M<0.01%+11,20713F-HRTimelineGroup
MANUFACTURERS LIFE INSURANCE COMPANY, T…in group MANUFACTURERS LIFE INSURANCE …83,417$2.05M<0.01%-2,91713F-HRTimelineGroup
LPL Financial LLC77,137$1.9M<0.01%+66,91813F-HRTimeline
MetLife Investment Management, LLCin group MetLife Investment Management…76,683$1.88M0.01%+81013F-HRTimelineGroup
Jackson Creek Investment Advisors LLC73,664$1.81M0.53%new13F-HRTimeline
Aquatic Capital Management LLC73,669$1.81M0.05%new13F-HRTimeline
CAPITAL FUND MANAGEMENT S.A.71,880$1.77M0.02%new13F-HRTimeline
WEALTH ENHANCEMENT ADVISORY SERVICES, L…63,672$1.76M<0.01%+12,55913F-HRTimeline
Inspire Investing, LLCin group Inspire Investing, LLC68,923$1.69M0.1%new13F-HRTimelineGroup
BRIDGEWAY CAPITAL MANAGEMENT, LLC67,037$1.65M0.03%-872,19413F-HRTimeline
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.in group Mirae Asset Global Investment…66,132$1.62M<0.01%+40813F-HRTimelineGroup
Convergence Investment Partners, LLC65,553$1.61M0.26%-8,04713F-HRTimeline
Allspring Global Investments Holdings, …in group Allspring Global Investments …58,555$1.6M<0.01%+6,07313F-HRTimelineGroup
Zurcher Kantonalbank (Zurich Cantonalba…62,285$1.53M<0.01%+22,84013F-HRTimeline
Boston Partnersin group Boston Trust Walden Corp60,983$1.5M<0.01%-481,02113F-HRTimelineGroup
PUBLIC EMPLOYEES RETIREMENT SYSTEM OF O…59,335$1.46M<0.01%+53,08113F-HRTimeline
HighTower Advisors, LLC57,911$1.42M<0.01%-35,66313F-HRTimeline
RENAISSANCE GROUP LLC56,224$1.38M0.06%-1,99713F-HRTimeline
BNP PARIBAS FINANCIAL MARKETSin group BNP PARIBAS FINANCIAL MARKETS52,536$1.29M<0.01%-43,14313F-HRTimelineGroup
DARK FOREST CAPITAL MANAGEMENT LP49,438$1.22M0.11%new13F-HRTimeline
PRELUDE CAPITAL MANAGEMENT, LLC47,583$1.17M0.09%+8,37713F-HRTimeline
MERCER GLOBAL ADVISORS INC /ADV45,852$1.13M<0.01%+10,57513F-HRTimeline
Dynamic Technology Lab Private Ltd44,413$1.09M0.18%+25,61613F-HRTimeline
STRS OHIO44,300$1.09M<0.01%-8,00013F-HRTimeline
Lighthouse Investment Partners, LLCin group Lighthouse Investment Partner…42,672$1.05M0.04%-96,56813F-HRTimelineGroup
INTECH INVESTMENT MANAGEMENT LLC39,207$964K0.01%-16,23613F-HRTimeline
O'SHAUGHNESSY ASSET MANAGEMENT, LLC38,896$956K<0.01%+10,96613F-HRTimeline
BAILARD, INC.37,900$932K0.02%-8,20013F-HRTimeline
RITHOLTZ WEALTH MANAGEMENT36,973$909K0.02%new13F-HRTimeline
Police & Firemen's Retirement System of…36,701$902K0.01%013F-HRTimeline
STATE BOARD OF ADMINISTRATION OF FLORID…36,160$889K<0.01%013F-HRTimeline
State of Wyoming35,655$876K0.1%+1,72813F-HRTimeline
Private Advisor Group, LLC35,539$874K<0.01%-48,04913F-HRTimeline
ARIZONA STATE RETIREMENT SYSTEM34,093$838K<0.01%-94213F-HRTimeline
Summit Global Investmentsin group Summit Global Investments33,799$831K0.05%+55413F-HRTimelineGroup
MML INVESTORS SERVICES, LLC32,890$808K<0.01%new13F-HRTimeline
Graham Capital Management, L.P.32,766$805K0.03%+4,31813F-HRTimeline
DRW Securities, LLC31,119$765K0.04%new13F-HRTimeline
LAWSON KROEKER INVESTMENT MANAGEMENT IN…30,520$750K0.22%-23,50013F-HRTimeline
Maven Securities LTDin group Maven Securities LTD30,444$748K0.04%new13F-HRTimelineGroup
Focus Partners Wealthgroup of 2 filers holding30,364$746K+4,186Timeline
Verition Fund Management LLC29,371$722K0.01%-135,75413F-HRTimeline
JENNISON ASSOCIATES LLC29,264$719K<0.01%new13F-HRTimeline
Universal- Beteiligungs- und Serviceges…in group Universal- Beteiligungs- und …28,462$700K<0.01%new13F-HRTimelineGroup
Precision Wealth Strategies, LLC27,815$684K0.23%new13F-HRTimeline
KLP KAPITALFORVALTNING AS27,500$676K<0.01%+90013F-HRTimeline
HIGHLAND CAPITAL MANAGEMENT, LLC27,486$676K0.04%+8,00413F-HRTimeline
VIRTUS ADVISERS, LLCin group Virtus Investment Advisers, L…26,000$639K0.3%013F-HRTimelineGroup
GLOBEFLEX CAPITAL L P25,838$635K0.1%new13F-HRTimeline
ISLAY CAPITAL MANAGEMENT, LLC25,648$630K0.32%new13F-HRTimeline
Ethic Inc.25,285$622K0.01%-3,99813F-HRTimeline
Csenge Advisory Group24,215$595K0.03%new13F-HRTimeline
THOROUGHBRED FINANCIAL SERVICES, LLC23,853$586K0.03%new13F-HRTimeline
ProShare Advisors LLC23,614$580K<0.01%-5,19413F-HRTimeline
VOYA INVESTMENT MANAGEMENT LLCin group VOYA INVESTMENT MANAGEMENT LLC23,519$578K<0.01%-1,21613F-HRTimelineGroup
DGS Capital Management, LLCin group DGS Capital Management, LLC22,307$548K0.09%new13F-HRTimelineGroup
CAPTRUST FINANCIAL ADVISORS22,045$542K<0.01%+4,11013F-HRTimeline
Nicholas Investment Partners, LP21,794$536K0.04%new13F-HRTimeline
Metis Global Partners, LLC20,566$506K0.01%-5,93813F-HRTimeline
Cambridge Investment Research Advisors,…20,289$499K<0.01%+1,46913F-HRTimeline
Walleye Capital LLCin group Walleye Capital LLC20,195$496K<0.01%new13F-HR/ATimelineGroup
Tower Research Capital LLC (TRC)in group Tower Research Capital LLC (T…19,886$489K0.01%+11,94813F-HRTimelineGroup
Deeter Investments LLP19,833$487K0.09%new13F-HRTimeline
&PARTNERS19,701$484K<0.01%-10,65813F-HRTimeline
Marex Group Ltdin group Marex Group Ltd19,451$478K<0.01%new13F-HRTimelineGroup
Blackstone Inc.in group Blackstone Inc.19,351$476K<0.01%new13F-HRTimelineGroupThe filing omitted confidential holdings, a later amendment may add them.
Pictet Asset Management Holding SAin group Pictet Asset Management Holdi…19,347$476K<0.01%+1,44713F-HRTimelineGroup
EP Wealth Advisors, LLC18,159$446K<0.01%+1,13313F-HRTimeline
Andina Capital Management, LLC18,114$445K0.39%new13F-HRTimeline
Brooklyn Investment Group17,996$442K0.01%+1,45313F-HRTimeline