Constellium SECSTM
13F holders, Q2 2026 (June 30)387holders +74
106new positions
30sold out
9famous investors
$31.72avg. 13F price*
At the end of Q2 2026, 387 institutions reported holding Constellium SE (CSTM) in their 13F filings, up 74 from Q1 2026. 106 opened new positions and 30 sold out. The largest holders were BlackRock, Inc. ($408.0M), Bpifrance SA ($267.8M) and Morgan Stanley ($197.1M). 9 famous investors held it, including David E. Shaw (0.0% of D. E. Shaw & Co.'s portfolio), Israel Englander (0.0% of Millennium Management's portfolio) and Steve Cohen (0.0% of Point72 Asset Management's portfolio).
- Company
- Constellium SE
- CUSIP
- F21107101
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q1 2026 → Q2 2026
| Institutions | Total Value | |
|---|---|---|
| New Positions | 106 | $114.9M |
| Exits | 30 | $25.1M |
All 13F filers, Q1 2026 → Q2 2026: 19,897,279 shares bought and 24,508,961 shares sold, net −4,611,682 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 387 holders
| BlackRock, Inc. | 0.01% | Reduce -1.3% | 12,802,322 | $408.0M |
| Bpifrance SA | 19.67% | Reduce -33.3% | 8,403,903 | $267.8M |
| Morgan Stanley | 0.01% | Add +93.5% | 6,183,255 | $197.1M |
| Vanguard Portfolio Management LLC | 0.01% | Add +11.8% | 4,391,756 | $140.0M |
| American Century Companies Inc. | 0.06% | Add +102.4% | 4,220,743 | $134.5M |
| T. Rowe Price Investment Management, Inc. | 0.06% | Reduce -24.8% | 2,980,566 | $95.0M |
| State Street Corp. | 0.00% | Add +6.9% | 2,954,799 | $94.2M |
| Arrowstreet Capital, Limited Partnership | 0.04% | Reduce -11.9% | 2,844,747 | $90.7M |
| Nuveen, LLC | 0.02% | Reduce -2.0% | 2,770,828 | $88.3M |
| Kinetic Partners Management, LP | 1.93% | Add +93.7% | 2,542,400 | $81.0M |
| Encompass Capital Advisors LLC | 3.33% | Reduce -2.3% | 2,421,349 | $77.2M |
| AQR Capital Management | 0.03% | Add +15.8% | 2,402,937 | $76.6M |
| Healthcare of Ontario Pension Plan Trust Fund | 0.10% | Add +10.8% | 2,278,202 | $72.6M |
| D. E. Shaw & Co. | 0.05% | Reduce -32.0% | 2,198,618 | $70.1M |
| FMR LLC | 0.00% | Reduce -68.5% | 2,194,722 | $69.9M |
| Acadian Asset Management LLC | 0.08% | Add +65.6% | 2,107,513 | $67.1M |
| Goldman Sachs Group Inc. | 0.01% | Add +51.0% | 2,070,665 | $66.0M |
| Millennium Management | 0.04% | Reduce -43.6% | 1,956,365 | $62.3M |
| Brightline Capital Management, LLC | 13.28% | Add +4.1% | 1,923,000 | $61.3M |
| Nomura Asset Management International Inc. | 0.09% | Reduce -3.0% | 1,856,018 | $59.2M |
| Geode Capital Management, LLC | 0.00% | Add +7.3% | 1,789,723 | $57.0M |
| Alliancebernstein L.P. | 0.02% | Reduce -6.7% | 2,162,231 | $53.1M |
| Allianz Asset Management GmbH | 0.04% | Add +62.6% | 1,453,717 | $46.3M |
| SG Americas Securities, LLC | 0.02% | Reduce -17.6% | 1,234,038 | $39.3M |
| JPMorgan Chase & Co. | 0.00% | Reduce -44.1% | 1,146,089 | $35.9M |
| Westwood Holdings Group Inc. | 0.27% | Reduce -21.6% | 1,099,362 | $35.0M |
| Marshall Wace, LLP | 0.03% | Add +7840.0% | 1,093,740 | $34.9M |
| Senator Investment Group LP | 1.26% | New | 1,083,489 | $34.5M |
| Panagora Asset Management Inc. | 0.10% | Add +48.7% | 1,048,331 | $33.4M |
| Northern Trust Corp. | 0.00% | Add +0.7% | 984,446 | $31.4M |
| Bank of America Corp. | 0.00% | Add +12.5% | 957,579 | $30.5M |
| William Blair Investment Management, LLC | 0.08% | Reduce -3.9% | 882,306 | $28.1M |
| HRT Financial LP | 0.05% | Add +68.5% | 874,136 | $27.9M |
| Federated Hermes, Inc. | 0.04% | Add +28.5% | 838,604 | $26.7M |
| Point72 Asset Management | 0.04% | Reduce -18.3% | 821,701 | $26.2M |
| Beaconlight Capital, LLC | 10.94% | Reduce -33.5% | 779,899 | $24.9M |
| Penn Capital Management Company, LLC | 1.52% | Reduce -11.3% | 749,645 | $23.9M |
| Charles Schwab Investment Management Inc. | 0.00% | Reduce -6.3% | 734,247 | $23.4M |
| Bayberry Capital Partners LP | 7.19% | Reduce -25.1% | 655,000 | $20.9M |
| Danske Bank A/S | 0.04% | Add +62.5% | 642,706 | $20.5M |
| Balyasny Asset Management L.P. | 0.04% | Reduce -19.4% | 641,403 | $20.4M |
| Qube Research & Technologies Ltd | 0.02% | Add +32.1% | 622,121 | $19.8M |
| Mackenzie Financial Corp. | 0.02% | Add +226.5% | 592,538 | $18.9M |
| Fisher Asset Management | 0.01% | Add +2.4% | 552,416 | $17.6M |
| New York State Common Retirement Fund | 0.02% | Reduce -8.8% | 520,203 | $16.6M |
| Raymond James Financial Inc. | 0.00% | Add +55.8% | 512,254 | $16.3M |
| Wells Fargo & Company | 0.00% | Add +424.4% | 498,794 | $15.9M |
| Jupiter Topco LLC | 0.01% | — | 494,899 | $15.8M |
| Mountaineer Partners Management, LLC | 11.18% | Reduce -26.8% | 482,130 | $15.4M |
| Russell Investments Group, Ltd. | 0.01% | Add +2.2% | 475,520 | $15.1M |
| Citadel Advisors | 0.01% | Reduce -38.5% | 474,311 | $15.1M |
| Trexquant Investment LP | 0.09% | Reduce -3.4% | 466,821 | $14.9M |
| Cooper Creek Partners Management LLC | 0.59% | Reduce -42.2% | 441,835 | $14.1M |
| Bank of New York Mellon Corp | 0.00% | Add +9.6% | 435,775 | $13.9M |
| Cannell & Spears LLC | 0.24% | Reduce -54.1% | 416,875 | $13.3M |
| Occudo Quantitative Strategies LP | 0.70% | Add +104.8% | 416,403 | $13.3M |
| Two Sigma Investments, LP | 0.01% | Add +26.5% | 365,357 | $11.6M |
| Man Group plc | 0.02% | Add +197.8% | 359,310 | $11.5M |
| Massachusetts Financial Services Co. | 0.00% | Add +3.9% | 351,022 | $11.2M |
| Hillsdale Investment Management Inc. | 0.25% | Add +9.8% | 347,600 | $11.1M |
| Beacon Investment Advisors LLC | 3.27% | Reduce -0.1% | 326,719 | $10.4M |
| LSV Asset Management | 0.02% | Add +37.2% | 320,300 | $10.2M |
| UBS Group AG | 0.00% | Reduce -33.8% | 312,141 | $9.9M |
| Bridgewater Associates | 0.04% | Reduce -38.1% | 311,558 | $9.9M |
| Franklin Resources Inc. | 0.00% | Add +2.2% | 295,567 | $9.4M |
| Hennessy Advisors Inc. | 0.30% | New | 294,500 | $9.4M |
| Creative Planning | 0.01% | Add +20.2% | 291,696 | $9.3M |
| Sei Investments Co. | 0.01% | Add +24.7% | 289,041 | $9.2M |
| Lazard Asset Management LLC | 0.01% | Add +227.8% | 285,453 | $9.1M |
| Kailix Advisors LLC | 8.56% | Reduce -43.7% | 278,200 | $8.9M |
| ArrowMark Colorado Holdings LLC | 0.37% | Reduce -44.3% | 277,217 | $8.8M |
| LPL Financial LLC | 0.00% | Add +247.8% | 268,282 | $8.6M |
| CVFG LLC | 0.89% | Reduce -2.6% | 266,220 | $8.5M |
| Algert Global LLC | 0.10% | Reduce -26.4% | 264,290 | $8.4M |
| GW&K Investment Management, LLC | 0.06% | Reduce -1.4% | 254,026 | $8.1M |
| Swiss National Bank | 0.00% | Add +0.2% | 245,900 | $7.8M |
| Schonfeld Strategic Advisors LLC | 0.04% | Add +87.3% | 244,069 | $7.8M |
| Neuberger Berman Group LLC | 0.01% | New | 237,315 | $7.6M |
| Ieq Capital, LLC | 0.03% | Reduce -12.0% | 234,061 | $7.5M |
| O'shaughnessy Asset Management, LLC | 0.03% | Add +462.4% | 218,767 | $7.0M |
| Jump Financial, LLC | 0.07% | Add +1412.4% | 218,690 | $7.0M |
| Soapstone Management L.P. | 4.64% | Reduce -75.0% | 200,000 | $6.4M |
| Sequoia Financial Advisors, LLC | 0.03% | Add +0.4% | 198,018 | $6.3M |
| KBC Group NV | 0.01% | No change | 197,790 | $6.3M |
| Engineers Gate Manager LP | 0.08% | Reduce -77.6% | 197,697 | $6.3M |
| Bank of Montreal | 0.00% | Reduce -4.8% | 197,229 | $6.3M |
| Connor, Clark & Lunn Investment Management Ltd. | 0.01% | Add +12.0% | 189,261 | $6.0M |
| Hudson Bay Capital Management LP | 0.03% | Reduce -53.8% | 185,572 | $5.9M |
| Prudential Financial Inc. | 0.01% | Add +91.0% | 176,940 | $5.6M |
| TD Waterhouse Canada Inc. | 0.01% | New | 184,316 | $5.6M |
| Deutsche Bank AG | 0.00% | Add +3.8% | 175,060 | $5.6M |
| Capital Fund Management S.A. | 0.04% | Add +140.3% | 172,721 | $5.5M |
| Rhumbline Advisers | 0.00% | Add +9.2% | 171,961 | $5.5M |
| Rockingstone Advisors LLC | 2.20% | Reduce -10.4% | 171,808 | $5.5M |
| Ameriprise Financial Inc. | 0.00% | Add +68.0% | 164,723 | $5.2M |
| Moore Capital Management, LP | 0.12% | Add +56.5% | 159,438 | $5.1M |
| Martingale Asset Management L P | 0.12% | Reduce -2.6% | 156,389 | $5.0M |
| Barclays PLC | 0.00% | Reduce -10.3% | 155,140 | $4.9M |
| Jane Street Group, LLC | 0.00% | Reduce -81.6% | 153,549 | $4.9M |
| Voleon Capital Management LP | 0.08% | Reduce -39.4% | 145,101 | $4.6M |
"% of holder's portfolio" is CSTM's weight in each manager's 13F, not the share of Constellium SE the manager owns.