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 |
|---|---|---|---|---|---|
| CWM, LLC | 102,443 | $2.52M | 0.01% | +16,546+19.3% | Added |
| Los Angeles Capital Management LLC | 102,806 | $2.53M | 0.01% | +48,992+91.0% | Added |
| Cetera Investment Advisers | 107,583 | $2.64M | 0.00% | +107,583 | New |
| Squarepoint Ops LLC | 109,706 | $2.70M | 0.01% | −96,575−46.8% | Reduced |
| Susquehanna International Group, LLP | 111,186 | $2.73M | 0.00% | +52,827+90.5% | Added |
| Legal & General Group Plc | 113,212 | $2.78M | 0.00% | −28,975−20.4% | Reduced |
| Vanguard Asset Management, Ltd | 113,286 | $2.78M | 0.00% | +113,286 | New |
| Clearbridge Investments, LLC | 119,076 | $2.93M | 0.00% | −3,062−2.5% | Reduced |
| Credit Agricole S A | 120,000 | $2.95M | 0.01% | +120,000 | New |
| Man Group plc | 120,637 | $2.97M | 0.01% | +3,968+3.4% | Added |
| Premier Fund Managers Ltd | 128,865 | $2.97M | 0.21% | +128,865 | New |
| Mirabella Financial Services LLP | 125,350 | $3.08M | 0.30% | +104,560+502.9% | Added |
| Envestnet Asset Management Inc | 125,716 | $3.09M | 0.00% | +125,716 | New |
| Knights of Columbus Asset Advisors LLC | 127,663 | $3.14M | 0.18% | −687−0.5% | Reduced |
| Schonfeld Strategic Advisors LLC | 130,320 | $3.20M | 0.03% | −39,606−23.3% | Reduced |
| Invesco Ltd. | 135,985 | $3.34M | 0.00% | −28,669−17.4% | Reduced |
| State of Alaska, Department of Revenue | 140,705 | $3.46M | 0.04% | 00.0% | Unchanged |
| California State Teachers Retirement System | 145,732 | $3.58M | 0.00% | +28,191+24.0% | Added |
| Gsa Capital Partners LLP | 148,995 | $3.66M | 0.23% | +124,592+510.6% | Added |
| Rhumbline Advisers | 157,416 | $3.87M | 0.00% | −18,392−10.5% | Reduced |
| Martingale Asset Management L P | 160,598 | $3.95M | 0.10% | +79,225+97.4% | Added |
| Y-Intercept (Hong Kong) Ltd | 163,827 | $4.03M | 0.08% | −220,016−57.3% | Reduced |
| LGT Fund Management Co Ltd. | 164,700 | $4.05M | 0.18% | +164,700 | New |
| Deutsche Bank AG | 168,614 | $4.14M | 0.00% | +7,816+4.9% | Added |
| Connor, Clark & Lunn Investment Management Ltd. | 168,987 | $4.15M | 0.01% | +62,035+58.0% | Added |
| Barclays PLC | 172,928 | $4.25M | 0.00% | −112,118−39.3% | Reduced |
| Ionic Capital Management LLC | 177,722 | $4.37M | 3.67% | −40,844−18.7% | Reduced |
| Mackenzie Financial Corp | 181,470 | $4.46M | 0.01% | +48,828+36.8% | Added |
| Rockingstone Advisors LLC | 191,837 | $4.72M | 2.16% | −27,390−12.5% | Reduced |
| State of Wisconsin Investment Board | 192,552 | $4.73M | 0.01% | +95,307+98.0% | Added |
| Sequoia Financial Advisors, LLC | 197,198 | $4.85M | 0.03% | +3,716+1.9% | Added |
| KBC Group NV | 197,790 | $4.86M | 0.01% | +193,552+4,567.1% | Added |
| Thornburg Investment Management Inc | 205,467 | $5.05M | 0.05% | −46,268−18.4% | Reduced |
| BW Gestao de Investimentos Ltda. | 207,096 | $5.09M | 0.23% | −339,174−62.1% | Reduced |
| Bank of Montreal | 207,106 | $5.09M | 0.00% | −31,152−13.1% | Reduced |
| Edgestream Partners, L.P. | 226,292 | $5.56M | 0.18% | +20,370+9.9% | Added |
| SEI Investments Co | 231,774 | $5.70M | 0.01% | +142,340+159.2% | Added |
| LSV Asset Management | 233,500 | $5.74M | 0.01% | −15,300−6.1% | Reduced |
| Voleon Capital Management LP | 239,501 | $5.89M | 0.13% | −47,082−16.4% | Reduced |
| Creative Planning | 242,751 | $5.97M | 0.00% | +49,026+25.3% | Added |
| Swiss National Bank | 245,400 | $6.03M | 0.00% | −2,200−0.9% | Reduced |
| Voloridge Investment Management, LLC | 252,168 | $6.20M | 0.02% | −262,441−51.0% | Reduced |
| GW&K Investment Management, LLC | 257,588 | $6.33M | 0.06% | −9,543−3.6% | Reduced |
| Occudo Quantitative Strategies LP | 203,298 | $6.36M | 0.35% | +25,648+14.4% | Added |
| Ieq Capital, LLC | 266,112 | $6.54M | 0.03% | +26,989+11.3% | Added |
| CVFG LLC | 273,220 | $6.72M | 0.83% | +273,220 | New |
| Two Sigma Investments, LP | 288,900 | $7.10M | 0.01% | +288,900 | New |
| Franklin Resources Inc | 289,324 | $7.11M | 0.00% | +76,112+35.7% | Added |
| Hillsdale Investment Management Inc. | 316,700 | $7.78M | 0.21% | +316,700 | New |
| Beacon Investment Advisors LLC | 326,966 | $8.04M | 3.03% | −952−0.3% | Reduced |
| Raymond James Financial Inc | 328,788 | $8.08M | 0.00% | +233,370+244.6% | Added |
| SummitTX Capital, L.P. | 330,242 | $8.12M | 0.26% | −358,331−52.0% | Reduced |
| Massachusetts Financial Services Co | 337,844 | $8.30M | 0.00% | +26,313+8.4% | Added |
| Whitebox Advisors LLC | 346,660 | $8.52M | 0.12% | −153,000−30.6% | Reduced |
| Algert Global LLC | 358,938 | $8.82M | 0.13% | −96,920−21.3% | Reduced |
| Danske Bank A/S | 395,440 | $9.72M | 0.02% | −41,659−9.5% | Reduced |
| Bank of New York Mellon Corp | 397,737 | $9.78M | 0.00% | −4,774−1.2% | Reduced |
| Hudson Bay Capital Management LP | 401,989 | $9.88M | 0.06% | 00.0% | Unchanged |
| Janus Henderson Group PLC | 439,301 | $10.8M | 0.01% | +389,147+775.9% | Added |
| Russell Investments Group, Ltd. | 465,397 | $11.4M | 0.01% | +36,070+8.4% | Added |
| Qube Research & Technologies Ltd | 470,929 | $11.6M | 0.02% | +470,929 | New |
| UBS Group AG | 471,495 | $11.6M | 0.00% | −83,405−15.0% | Reduced |
| Trexquant Investment LP | 483,077 | $11.9M | 0.09% | +96,377+24.9% | Added |
| ArrowMark Colorado Holdings LLC | 497,379 | $12.2M | 0.32% | −106,000−17.6% | Reduced |
| Bridgewater Associates, LP | 502,971 | $12.4M | 0.06% | +502,971 | New |
| HRT Financial LP | 518,832 | $12.8M | 0.03% | +202,165+63.8% | Added |
| Fisher Asset Management, LLC | 539,451 | $13.3M | 0.00% | +529,278+5,202.8% | Added |
| Kailix Advisors LLC | 494,400 | $13.5M | 11.83% | −483,657−49.5% | Reduced |
| New York State Common Retirement Fund | 570,187 | $14.0M | 0.02% | +283,903+99.2% | Added |
| Federated Hermes, Inc. | 652,658 | $16.0M | 0.03% | +355,637+119.7% | Added |
| Mountaineer Partners Management, LLC | 658,490 | $16.2M | 8.04% | −22,974−3.4% | Reduced |
| Panagora Asset Management Inc | 704,840 | $17.3M | 0.06% | +83,657+13.5% | Added |
| Cooper Creek Partners Management LLC | 764,205 | $18.8M | 0.90% | −235,004−23.5% | Reduced |
| Citadel Advisors LLC | 770,608 | $18.9M | 0.01% | +643,118+504.4% | Added |
| Charles Schwab Investment Management Inc | 783,237 | $19.3M | 0.00% | −25,620−3.2% | Reduced |
| Balyasny Asset Management LLC | 795,413 | $19.6M | 0.04% | +576,039+262.6% | Added |
| Soapstone Management L.P. | 800,000 | $19.7M | 14.01% | −550,000−40.7% | Reduced |
| Jane Street Group, LLC | 832,491 | $20.5M | 0.02% | +518,759+165.4% | Added |
| Penn Capital Management Co Inc | 844,934 | $20.8M | 1.61% | +479,740+131.4% | Added |
| Bank of America Corp | 851,222 | $20.9M | 0.00% | +425,871+100.1% | Added |
| UBS Asset Management Americas Inc | 855,664 | $21.0M | 0.00% | −13,948−1.6% | Reduced |
| Bayberry Capital Partners LP | 874,000 | $21.5M | 7.10% | +874,000 | New |
| Engineers Gate Manager LP | 884,103 | $21.7M | 0.27% | −165,115−15.7% | Reduced |
| Allianz Asset Management GmbH | 893,937 | $22.0M | 0.03% | +717,990+408.1% | Added |
| Spears Abacus Advisors LLC | 909,200 | $22.3M | 0.44% | −57,847−6.0% | Reduced |
| William Blair Investment Management, LLC | 918,090 | $22.6M | 0.07% | +918,090 | New |
| Northern Trust Corp | 977,583 | $24.0M | 0.00% | +35,729+3.8% | Added |
| Point72 Asset Management, L.P. | 1,005,203 | $24.7M | 0.04% | +687,114+216.0% | Added |
| Beaconlight Capital, LLC | 1,171,812 | $28.8M | 16.24% | −168,122−12.5% | Reduced |
| Acadian Asset Management LLC | 1,272,871 | $31.3M | 0.04% | +911,245+252.0% | Added |
| Kinetic Partners Management, LP | 1,312,400 | $32.3M | 1.81% | +1,312,400 | New |
| Goldman Sachs Group Inc | 1,371,776 | $33.7M | 0.00% | +4,291+0.3% | Added |
| Westwood Holdings Group Inc. | 1,401,416 | $34.4M | 0.25% | +1,401,416 | New |
| SG Americas Securities, LLC | 1,497,460 | $36.8M | 0.04% | +522,725+53.6% | Added |
| Geode Capital Management, LLC | 1,668,451 | $41.0M | 0.00% | +36,877+2.3% | Added |
| Scopus Asset Management, L.P. | 1,681,708 | $41.3M | 1.30% | −50,000−2.9% | Reduced |
| Alliancebernstein L.P. | 2,317,008 | $43.7M | 0.01% | +2,178,558+1,573.5% | Added |
| Brightline Capital Management, LLC | 1,847,000 | $45.4M | 13.43% | +5,000+0.3% | Added |
| Nomura Asset Management International Inc. | 1,913,433 | $47.0M | 0.08% | −30,806−1.6% | Reduced |
| JPMorgan Chase & Co | 2,051,930 | $47.3M | 0.00% | −37,482−1.8% | Reduced |