Constellium SE
CSTM- Exchange
- NYSE
- Industry
- Secondary Smelting & Refining of Nonferrous Metals
- SEC CIK
- 0001563411
In the last 90 days, Constellium SE insiders filed 1 open-market purchase and 0 sales; 389 institutions reported holding it in 13F filings for Q2 2026, worth $3.85B in total; no superinvestor holds it.
13F holders, Q2 2026
Institutional positions in Constellium SE as of Jun 30, 2026. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 389
- +82 vs. Q1 2026
- Shares held
- 121.5M
- −3.92M (−3.1%) vs. Q1 2026
- Total value
- $3.85B
- +$787.8M (+25.7%) vs. Q1 2026
- New holders
- 112
- 148 more added
- Sold out
- 30
- 110 more reduced
8 institutions that held it in Q1 2026 haven't filed for Q2 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q1 2026: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting CSTM on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 389 | $3.85B |
| Q1 2026 | 315 | $3.08B |
| Q4 2025 | 253 | $2.34B |
| Q3 2025 | 237 | $1.91B |
| Q2 2025 | 224 | $1.76B |
| Q1 2025 | 220 | $1.33B |
| Q4 2024 | 219 | $1.39B |
| Q3 2024 | 222 | $2.21B |
| Q2 2024 | 224 | $2.58B |
| Q1 2024 | 207 | $3.04B |
| Q4 2023 | 193 | $2.67B |
| Q3 2023 | 191 | $2.46B |
| Q2 2023 | 187 | $2.34B |
| Q1 2023 | 183 | $2.04B |
| Q4 2022 | 185 | $1.57B |
| Q3 2022 | 179 | $1.35B |
| Q2 2022 | 189 | $1.76B |
| Q1 2022 | 183 | $2.36B |
| Q4 2021 | 161 | $2.27B |
| Q3 2021 | 162 | $2.39B |
| Q2 2021 | 153 | $2.46B |
| Q1 2021 | 135 | $1.80B |
Institutions, Q2 2026
Shares, value and share of portfolio for each institution holding Constellium SE; share changes are against Q1 2026.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Hudson Bay Capital Management LP | 185,572 | $5.91M | 0.03% | −216,417−53.8% | Reduced |
| Connor, Clark & Lunn Investment Management Ltd. | 189,261 | $6.03M | 0.01% | +20,274+12.0% | Added |
| Bank of Montreal | 197,229 | $6.29M | 0.00% | −9,877−4.8% | Reduced |
| Engineers Gate Manager LP | 197,697 | $6.30M | 0.08% | −686,406−77.6% | Reduced |
| KBC Group NV | 197,790 | $6.30M | 0.01% | 00.0% | Unchanged |
| Sequoia Financial Advisors, LLC | 198,018 | $6.31M | 0.03% | +820+0.4% | Added |
| Soapstone Management L.P. | 200,000 | $6.37M | 4.64% | −600,000−75.0% | Reduced |
| Jump Financial, LLC | 218,690 | $6.97M | 0.06% | +204,230+1,412.4% | Added |
| O'Shaughnessy Asset Management, LLC | 218,767 | $6.97M | 0.03% | +179,871+462.4% | Added |
| Ieq Capital, LLC | 234,061 | $7.46M | 0.03% | −32,051−12.0% | Reduced |
| Neuberger Berman Group LLC | 237,315 | $7.56M | 0.01% | +237,315 | New |
| Schonfeld Strategic Advisors LLC | 244,069 | $7.78M | 0.04% | +113,749+87.3% | Added |
| Swiss National Bank | 245,900 | $7.84M | 0.00% | +500+0.2% | Added |
| GW&K Investment Management, LLC | 254,026 | $8.10M | 0.06% | −3,562−1.4% | Reduced |
| Algert Global LLC | 264,290 | $8.42M | 0.10% | −94,648−26.4% | Reduced |
| CVFG LLC | 266,220 | $8.48M | 0.89% | −7,000−2.6% | Reduced |
| LPL Financial LLC | 268,282 | $8.55M | 0.00% | +191,145+247.8% | Added |
| ArrowMark Colorado Holdings LLC | 277,217 | $8.83M | 0.37% | −220,162−44.3% | Reduced |
| Kailix Advisors LLC | 278,200 | $8.87M | 8.56% | −216,200−43.7% | Reduced |
| Lazard Asset Management LLC | 285,453 | $9.10M | 0.01% | +198,358+227.7% | Added |
| SEI Investments Co | 289,041 | $9.21M | 0.01% | +57,267+24.7% | Added |
| Creative Planning | 291,696 | $9.30M | 0.01% | +48,945+20.2% | Added |
| Hennessy Advisors Inc | 294,500 | $9.39M | 0.30% | +294,500 | New |
| Franklin Resources Inc | 295,567 | $9.42M | 0.00% | +6,243+2.2% | Added |
| Bridgewater Associates, LP | 311,558 | $9.93M | 0.04% | −191,413−38.1% | Reduced |
| UBS Group AG | 312,141 | $9.95M | 0.00% | −159,354−33.8% | Reduced |
| LSV Asset Management | 320,300 | $10.2M | 0.02% | +86,800+37.2% | Added |
| Beacon Investment Advisors LLC | 326,719 | $10.4M | 3.27% | −247−0.1% | Reduced |
| Hillsdale Investment Management Inc. | 347,600 | $11.1M | 0.25% | +30,900+9.8% | Added |
| Massachusetts Financial Services Co | 351,022 | $11.2M | 0.00% | +13,178+3.9% | Added |
| Man Group plc | 359,310 | $11.5M | 0.02% | +238,673+197.8% | Added |
| Two Sigma Investments, LP | 365,357 | $11.6M | 0.01% | +76,457+26.5% | Added |
| Occudo Quantitative Strategies LP | 416,403 | $13.3M | 0.71% | +213,105+104.8% | Added |
| Spears Abacus Advisors LLC | 416,875 | $13.3M | 0.24% | −492,325−54.1% | Reduced |
| Bank of New York Mellon Corp | 435,775 | $13.9M | 0.00% | +38,038+9.6% | Added |
| Cooper Creek Partners Management LLC | 441,835 | $14.1M | 0.59% | −322,370−42.2% | Reduced |
| Trexquant Investment LP | 466,821 | $14.9M | 0.09% | −16,256−3.4% | Reduced |
| Citadel Advisors LLC | 474,311 | $15.1M | 0.01% | −296,297−38.4% | Reduced |
| Russell Investments Group, Ltd. | 475,520 | $15.1M | 0.01% | +10,123+2.2% | Added |
| Mountaineer Partners Management, LLC | 482,130 | $15.4M | 11.18% | −176,360−26.8% | Reduced |
| Jupiter Topco LLC | 494,899 | $15.8M | 0.01% | +494,899 | New |
| Wells Fargo & Company | 498,794 | $15.9M | 0.00% | +403,684+424.4% | Added |
| Raymond James Financial Inc | 512,254 | $16.3M | 0.00% | +183,466+55.8% | Added |
| New York State Common Retirement Fund | 520,203 | $16.6M | 0.02% | −49,984−8.8% | Reduced |
| Fisher Asset Management, LLC | 552,416 | $17.6M | 0.01% | +12,965+2.4% | Added |
| Mackenzie Financial Corp | 592,538 | $18.9M | 0.02% | +411,068+226.5% | Added |
| Qube Research & Technologies Ltd | 622,121 | $19.8M | 0.02% | +151,192+32.1% | Added |
| Balyasny Asset Management LLC | 641,403 | $20.4M | 0.04% | −154,010−19.4% | Reduced |
| Danske Bank A/S | 642,706 | $20.5M | 0.04% | +247,266+62.5% | Added |
| Bayberry Capital Partners LP | 655,000 | $20.9M | 7.19% | −219,000−25.1% | Reduced |
| Charles Schwab Investment Management Inc | 734,247 | $23.4M | 0.00% | −48,990−6.3% | Reduced |
| Penn Capital Management Co Inc | 749,645 | $23.9M | 1.52% | −95,289−11.3% | Reduced |
| Beaconlight Capital, LLC | 779,899 | $24.9M | 10.94% | −391,913−33.4% | Reduced |
| Point72 Asset Management, L.P. | 821,701 | $26.2M | 0.04% | −183,502−18.3% | Reduced |
| Federated Hermes, Inc. | 838,604 | $26.7M | 0.04% | +185,946+28.5% | Added |
| HRT Financial LP | 874,136 | $27.9M | 0.05% | +355,304+68.5% | Added |
| William Blair Investment Management, LLC | 882,306 | $28.1M | 0.08% | −35,784−3.9% | Reduced |
| Bank of America Corp | 957,579 | $30.5M | 0.00% | +106,357+12.5% | Added |
| Northern Trust Corp | 984,446 | $31.4M | 0.00% | +6,863+0.7% | Added |
| Panagora Asset Management Inc | 1,048,331 | $33.4M | 0.10% | +343,491+48.7% | Added |
| Senator Investment Group LP | 1,083,489 | $34.5M | 1.26% | +1,083,489 | New |
| Marshall Wace, LLP | 1,093,740 | $34.9M | 0.03% | +1,079,965+7,840.0% | Added |
| Westwood Holdings Group Inc. | 1,099,362 | $35.0M | 0.26% | −302,054−21.6% | Reduced |
| JPMorgan Chase & Co | 1,146,089 | $35.9M | 0.00% | −905,841−44.1% | Reduced |
| SG Americas Securities, LLC | 1,234,038 | $39.3M | 0.02% | −263,422−17.6% | Reduced |
| Allianz Asset Management GmbH | 1,453,717 | $46.3M | 0.04% | +559,780+62.6% | Added |
| Alliancebernstein L.P. | 2,162,231 | $53.1M | 0.02% | −154,777−6.7% | Reduced |
| Scopus Asset Management, L.P. | 1,731,708 | $55.2M | 1.30% | +50,000+3.0% | Added |
| Geode Capital Management, LLC | 1,789,723 | $57.0M | 0.00% | +121,272+7.3% | Added |
| Nomura Asset Management International Inc. | 1,856,018 | $59.2M | 0.09% | −57,415−3.0% | Reduced |
| Brightline Capital Management, LLC | 1,923,000 | $61.3M | 13.28% | +76,000+4.1% | Added |
| Millennium Management LLC | 1,956,365 | $62.3M | 0.04% | −1,513,726−43.6% | Reduced |
| Goldman Sachs Group Inc | 2,070,665 | $66.0M | 0.01% | +698,889+50.9% | Added |
| Acadian Asset Management LLC | 2,107,513 | $67.1M | 0.08% | +834,642+65.6% | Added |
| FMR LLC | 2,194,722 | $69.9M | 0.00% | −4,767,046−68.5% | Reduced |
| D. E. Shaw & Co., Inc. | 2,198,618 | $70.1M | 0.04% | −1,035,958−32.0% | Reduced |
| Healthcare of Ontario Pension Plan Trust Fund | 2,278,202 | $72.6M | 0.10% | +221,866+10.8% | Added |
| AQR Capital Management LLC | 2,402,937 | $76.6M | 0.03% | +328,076+15.8% | Added |
| Encompass Capital Advisors LLC | 2,421,349 | $77.2M | 3.33% | −55,929−2.3% | Reduced |
| Kinetic Partners Management, LP | 2,542,400 | $81.0M | 1.93% | +1,230,000+93.7% | Added |
| Nuveen, LLC | 2,770,828 | $88.3M | 0.02% | −56,903−2.0% | Reduced |
| Arrowstreet Capital, Limited Partnership | 2,844,747 | $90.7M | 0.04% | −383,280−11.9% | Reduced |
| State Street Corp | 2,954,799 | $94.2M | 0.00% | +191,304+6.9% | Added |
| T. Rowe Price Investment Management, Inc. | 2,980,566 | $95.0M | 0.06% | −980,253−24.7% | Reduced |
| American Century Companies Inc | 4,220,743 | $134.5M | 0.06% | +2,135,264+102.4% | Added |
| Vanguard Portfolio Management LLC | 4,391,756 | $140.0M | 0.01% | +464,659+11.8% | Added |
| Morgan Stanley | 6,183,255 | $197.1M | 0.01% | +2,987,201+93.5% | Added |
| Bpifrance SA | 8,403,903 | $267.8M | 19.67% | −4,190,000−33.3% | Reduced |
| BlackRock, Inc. | 12,802,322 | $408.0M | 0.01% | −161,881−1.2% | Reduced |
| BW Gestao de Investimentos Ltda. | 0 | $0 | 0.00% | −207,096−100.0% | Sold out |
| Thornburg Investment Management Inc | 0 | $0 | 0.00% | −205,467−100.0% | Sold out |
| LGT Fund Management Co Ltd. | 0 | $0 | 0.00% | −164,700−100.0% | Sold out |
| Premier Fund Managers Ltd | 0 | $0 | 0.00% | −128,865−100.0% | Sold out |
| Twinbeech Capital LP | 0 | $0 | 0.00% | −93,141−100.0% | Sold out |
| Lighthouse Investment Partners, LLC | 0 | $0 | 0.00% | −42,672−100.0% | Sold out |
| Verition Fund Management LLC | 0 | $0 | 0.00% | −29,371−100.0% | Sold out |
| Blackstone Group Inc. | 0 | $0 | 0.00% | −19,351−100.0% | Sold out |
| Andina Capital Management, LLC | 0 | $0 | 0.00% | −18,114−100.0% | Sold out |
| Centiva Capital, LP | 0 | $0 | 0.00% | −17,728−100.0% | Sold out |
| Cynosure Management, LLC | 0 | $0 | 0.00% | −16,404−100.0% | Sold out |