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, Q1 2026
Institutional positions in Constellium SE as of Mar 31, 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
- 315
- +66 vs. Q4 2025
- Shares held
- 126.0M
- +5.79M (+4.8%) vs. Q4 2025
- Total value
- $3.08B
- +$815.3M (+36.0%) vs. Q4 2025
- New holders
- 88
- 113 more added
- Sold out
- 22
- 85 more reduced
4 institutions that held it in Q4 2025 haven't filed for Q1 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 2025: 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, Q1 2026
Shares, value and share of portfolio for each institution holding Constellium SE; share changes are against Q4 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| BlackRock, Inc. | 12,964,203 | $318.7M | 0.01% | −766,091−5.6% | Reduced |
| Bpifrance SA | 12,593,903 | $309.6M | 18.71% | 00.0% | Unchanged |
| FMR LLC | 6,961,768 | $171.1M | 0.01% | −3,607,515−34.1% | Reduced |
| T. Rowe Price Investment Management, Inc. | 3,960,819 | $97.4M | 0.07% | −373,908−8.6% | Reduced |
| Vanguard Portfolio Management LLC | 3,927,097 | $96.5M | 0.01% | +3,927,097 | New |
| Millennium Management LLC | 3,470,091 | $85.3M | 0.06% | −2,799,778−44.7% | Reduced |
| D. E. Shaw & Co., Inc. | 3,234,576 | $79.5M | 0.06% | +179,285+5.9% | Added |
| Arrowstreet Capital, Limited Partnership | 3,228,027 | $79.3M | 0.04% | +2,780,260+620.9% | Added |
| Morgan Stanley | 3,196,054 | $78.6M | 0.00% | −532,064−14.3% | Reduced |
| Nuveen, LLC | 2,827,731 | $69.5M | 0.02% | −13,230−0.5% | Reduced |
| State Street Corp | 2,763,495 | $67.9M | 0.00% | +102,977+3.9% | Added |
| Encompass Capital Advisors LLC | 2,477,278 | $60.9M | 2.48% | −2,180,637−46.8% | Reduced |
| American Century Companies Inc | 2,085,479 | $51.3M | 0.03% | +274,135+15.1% | Added |
| AQR Capital Management LLC | 2,074,861 | $51.0M | 0.02% | +308,358+17.5% | Added |
| Healthcare of Ontario Pension Plan Trust Fund | 2,056,336 | $50.5M | 0.08% | +1,849,554+894.4% | Added |
| JPMorgan Chase & Co | 2,051,930 | $47.3M | 0.00% | −37,482−1.8% | Reduced |
| Nomura Asset Management International Inc. | 1,913,433 | $47.0M | 0.08% | −30,806−1.6% | Reduced |
| Brightline Capital Management, LLC | 1,847,000 | $45.4M | 13.43% | +5,000+0.3% | Added |
| Alliancebernstein L.P. | 2,317,008 | $43.7M | 0.01% | +2,178,558+1,573.5% | Added |
| Scopus Asset Management, L.P. | 1,681,708 | $41.3M | 1.30% | −50,000−2.9% | Reduced |
| Geode Capital Management, LLC | 1,668,451 | $41.0M | 0.00% | +36,877+2.3% | Added |
| SG Americas Securities, LLC | 1,497,460 | $36.8M | 0.04% | +522,725+53.6% | Added |
| Westwood Holdings Group Inc. | 1,401,416 | $34.4M | 0.25% | +1,401,416 | New |
| Goldman Sachs Group Inc | 1,371,776 | $33.7M | 0.00% | +4,291+0.3% | Added |
| Kinetic Partners Management, LP | 1,312,400 | $32.3M | 1.81% | +1,312,400 | New |
| Acadian Asset Management LLC | 1,272,871 | $31.3M | 0.04% | +911,245+252.0% | Added |
| Beaconlight Capital, LLC | 1,171,812 | $28.8M | 16.24% | −168,122−12.5% | Reduced |
| Point72 Asset Management, L.P. | 1,005,203 | $24.7M | 0.04% | +687,114+216.0% | Added |
| Northern Trust Corp | 977,583 | $24.0M | 0.00% | +35,729+3.8% | Added |
| William Blair Investment Management, LLC | 918,090 | $22.6M | 0.07% | +918,090 | New |
| Spears Abacus Advisors LLC | 909,200 | $22.3M | 0.44% | −57,847−6.0% | Reduced |
| Allianz Asset Management GmbH | 893,937 | $22.0M | 0.03% | +717,990+408.1% | Added |
| Engineers Gate Manager LP | 884,103 | $21.7M | 0.27% | −165,115−15.7% | Reduced |
| Bayberry Capital Partners LP | 874,000 | $21.5M | 7.10% | +874,000 | New |
| UBS Asset Management Americas Inc | 855,664 | $21.0M | 0.00% | −13,948−1.6% | Reduced |
| Bank of America Corp | 851,222 | $20.9M | 0.00% | +425,871+100.1% | Added |
| Penn Capital Management Co Inc | 844,934 | $20.8M | 1.61% | +479,740+131.4% | Added |
| Jane Street Group, LLC | 832,491 | $20.5M | 0.02% | +518,759+165.4% | Added |
| Soapstone Management L.P. | 800,000 | $19.7M | 14.01% | −550,000−40.7% | Reduced |
| Balyasny Asset Management LLC | 795,413 | $19.6M | 0.04% | +576,039+262.6% | Added |
| Charles Schwab Investment Management Inc | 783,237 | $19.3M | 0.00% | −25,620−3.2% | Reduced |
| Citadel Advisors LLC | 770,608 | $18.9M | 0.01% | +643,118+504.4% | Added |
| Cooper Creek Partners Management LLC | 764,205 | $18.8M | 0.90% | −235,004−23.5% | Reduced |
| Panagora Asset Management Inc | 704,840 | $17.3M | 0.06% | +83,657+13.5% | Added |
| Mountaineer Partners Management, LLC | 658,490 | $16.2M | 8.04% | −22,974−3.4% | Reduced |
| Federated Hermes, Inc. | 652,658 | $16.0M | 0.03% | +355,637+119.7% | Added |
| New York State Common Retirement Fund | 570,187 | $14.0M | 0.02% | +283,903+99.2% | Added |
| Kailix Advisors LLC | 494,400 | $13.5M | 11.83% | −483,657−49.5% | Reduced |
| Fisher Asset Management, LLC | 539,451 | $13.3M | 0.00% | +529,278+5,202.8% | Added |
| HRT Financial LP | 518,832 | $12.8M | 0.03% | +202,165+63.8% | Added |
| Bridgewater Associates, LP | 502,971 | $12.4M | 0.06% | +502,971 | New |
| ArrowMark Colorado Holdings LLC | 497,379 | $12.2M | 0.32% | −106,000−17.6% | Reduced |
| Trexquant Investment LP | 483,077 | $11.9M | 0.09% | +96,377+24.9% | Added |
| UBS Group AG | 471,495 | $11.6M | 0.00% | −83,405−15.0% | Reduced |
| Qube Research & Technologies Ltd | 470,929 | $11.6M | 0.02% | +470,929 | New |
| Russell Investments Group, Ltd. | 465,397 | $11.4M | 0.01% | +36,070+8.4% | Added |
| Janus Henderson Group PLC | 439,301 | $10.8M | 0.01% | +389,147+775.9% | Added |
| Hudson Bay Capital Management LP | 401,989 | $9.88M | 0.06% | 00.0% | Unchanged |
| Bank of New York Mellon Corp | 397,737 | $9.78M | 0.00% | −4,774−1.2% | Reduced |
| Danske Bank A/S | 395,440 | $9.72M | 0.02% | −41,659−9.5% | Reduced |
| Algert Global LLC | 358,938 | $8.82M | 0.13% | −96,920−21.3% | Reduced |
| Whitebox Advisors LLC | 346,660 | $8.52M | 0.12% | −153,000−30.6% | Reduced |
| Massachusetts Financial Services Co | 337,844 | $8.30M | 0.00% | +26,313+8.4% | Added |
| SummitTX Capital, L.P. | 330,242 | $8.12M | 0.26% | −358,331−52.0% | Reduced |
| Raymond James Financial Inc | 328,788 | $8.08M | 0.00% | +233,370+244.6% | Added |
| Beacon Investment Advisors LLC | 326,966 | $8.04M | 3.03% | −952−0.3% | Reduced |
| Hillsdale Investment Management Inc. | 316,700 | $7.78M | 0.21% | +316,700 | New |
| Franklin Resources Inc | 289,324 | $7.11M | 0.00% | +76,112+35.7% | Added |
| Two Sigma Investments, LP | 288,900 | $7.10M | 0.01% | +288,900 | New |
| CVFG LLC | 273,220 | $6.72M | 0.83% | +273,220 | New |
| Ieq Capital, LLC | 266,112 | $6.54M | 0.03% | +26,989+11.3% | Added |
| Occudo Quantitative Strategies LP | 203,298 | $6.36M | 0.35% | +25,648+14.4% | Added |
| GW&K Investment Management, LLC | 257,588 | $6.33M | 0.06% | −9,543−3.6% | Reduced |
| Voloridge Investment Management, LLC | 252,168 | $6.20M | 0.02% | −262,441−51.0% | Reduced |
| Swiss National Bank | 245,400 | $6.03M | 0.00% | −2,200−0.9% | Reduced |
| Creative Planning | 242,751 | $5.97M | 0.00% | +49,026+25.3% | Added |
| Voleon Capital Management LP | 239,501 | $5.89M | 0.13% | −47,082−16.4% | Reduced |
| LSV Asset Management | 233,500 | $5.74M | 0.01% | −15,300−6.1% | Reduced |
| SEI Investments Co | 231,774 | $5.70M | 0.01% | +142,340+159.2% | Added |
| Edgestream Partners, L.P. | 226,292 | $5.56M | 0.18% | +20,370+9.9% | Added |
| Bank of Montreal | 207,106 | $5.09M | 0.00% | −31,152−13.1% | Reduced |
| BW Gestao de Investimentos Ltda. | 207,096 | $5.09M | 0.23% | −339,174−62.1% | Reduced |
| Thornburg Investment Management Inc | 205,467 | $5.05M | 0.05% | −46,268−18.4% | Reduced |
| KBC Group NV | 197,790 | $4.86M | 0.01% | +193,552+4,567.1% | Added |
| Sequoia Financial Advisors, LLC | 197,198 | $4.85M | 0.03% | +3,716+1.9% | Added |
| State of Wisconsin Investment Board | 192,552 | $4.73M | 0.01% | +95,307+98.0% | Added |
| Rockingstone Advisors LLC | 191,837 | $4.72M | 2.16% | −27,390−12.5% | Reduced |
| Mackenzie Financial Corp | 181,470 | $4.46M | 0.01% | +48,828+36.8% | Added |
| Ionic Capital Management LLC | 177,722 | $4.37M | 3.67% | −40,844−18.7% | Reduced |
| Barclays PLC | 172,928 | $4.25M | 0.00% | −112,118−39.3% | Reduced |
| Connor, Clark & Lunn Investment Management Ltd. | 168,987 | $4.15M | 0.01% | +62,035+58.0% | Added |
| Deutsche Bank AG | 168,614 | $4.14M | 0.00% | +7,816+4.9% | Added |
| LGT Fund Management Co Ltd. | 164,700 | $4.05M | 0.18% | +164,700 | New |
| Y-Intercept (Hong Kong) Ltd | 163,827 | $4.03M | 0.08% | −220,016−57.3% | Reduced |
| Martingale Asset Management L P | 160,598 | $3.95M | 0.10% | +79,225+97.4% | Added |
| Rhumbline Advisers | 157,416 | $3.87M | 0.00% | −18,392−10.5% | Reduced |
| Gsa Capital Partners LLP | 148,995 | $3.66M | 0.23% | +124,592+510.6% | Added |
| California State Teachers Retirement System | 145,732 | $3.58M | 0.00% | +28,191+24.0% | Added |
| State of Alaska, Department of Revenue | 140,705 | $3.46M | 0.04% | 00.0% | Unchanged |
| Invesco Ltd. | 135,985 | $3.34M | 0.00% | −28,669−17.4% | Reduced |