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; 393 institutions reported holding it in 13F filings for Q2 2026, worth $3.86B in total; no superinvestor holds it.
Key figures
- Market capClose on Nov 10, 2026
- $3.02B
- Insider buysLast 90 days, $42.1K in total
- 1
- Insider sellsOpen market, last 90 days
- 0
- 13F holdersQ2 2026, +82 vs. previous quarter
- 393
- 13F valueReported value at the end of Q2 2026
- $3.86B
- Superinvestors holdingAt the end of Q2 2026
- 0
Price chart
Financials
See financial statementsFrom SEC filings, in USD.
- Revenue, FY2025
- $8.45B
- +15.2% year over year
- Net income, FY2025
- $273.0M
- +387.5% year over year
- Free cash flow, FY2025
- $159.0M
- No comparable prior period
- Revenue, Q3 FY2026
- $2.64B
- +21.8% year over year
Revenue flow, FY2025
Green is profit; orange is costs, expenses and taxes. Percentages are shares of revenue.
Short interest
See short dataFrom FINRA, settlement date Oct 30, 2026.
- Short interest
- 4.40M
- Shares sold short
- Change
- −1.47M
- −25.1% vs. previous
- Days to cover
- 2.42
- At average daily volume
Superinvestors holding CSTM, Q2 2026
Go to the superinvestors tabNo superinvestor reported holding CSTM at the end of Q2 2026.
Latest insider trades
See all insider tradesOpen-market purchases and sales by Constellium SE insiders from Form 4, newest first.
| Filed (ET) | Trade date | Filing delay | Insider | Transaction | Shares | Avg price | Value | Holding change | Flags |
|---|---|---|---|---|---|---|---|---|---|
| Nov 3, 2026 (view filing)9:34 AM ET | Nov 2 | 1 day | Deslarzes Jean-ChristopheDirector | PPurchase | +1.80K | $23.41 | +$42.1K | +4.1%45.3K after | |
| Aug 3, 2026 (view filing)7:25 PM ET | Aug 3 | Same day | Deslarzes Jean-ChristopheDirector | PPurchase | +1.49K | $27.24 | +$40.6K | +3.5%43.5K after | |
| Jun 8, 2026 (view filing) | Jun 4 | 4 days | Ormerod JohnDirector | SSale | −8.00K | $35.01 | −$280.1K | −24.3%24.9K after | |
| Jun 1, 2026 (view filing) | May 28 | 4 days | Becker MarcusSVP CPO | SSale | −10.4K | $34.93 | −$363.0K | −38.2%16.8K after | |
| May 18, 2026 (view filing) | May 14 | 4 days | Jarrett MartinSVP Chief Innovation Officer | SSale | −4.72K | $33.46 | −$157.8K | −23.5%15.4K after | |
| May 18, 2026 (view filing) | May 14 | 4 days | Soultz Bradley LeeDirector | PPurchase | +2.50K | $33.84 | +$84.6K | New position2.50K after | |
| May 13, 2026 (view filing) | May 12 | 1 day | Piquier LudovicSVP Manuf Excellence & CTO | SSale | −1.00K | $33.57 | −$33.6K | −0.4%241.7K after | |
| May 12, 2026 (view filing) | May 11 | 1 day | Brun NicolasSVP PA, Comm & Sust | SSale | −26.7K | $33.85 | −$902.5K | −20.3%104.9K after | |
| May 12, 2026 (view filing) | May 8 | 4 days | Corre StephanePresident, AS&I | SSale | −5.00K | $33.52 | −$167.6K | −7.4%62.3K after | |
| May 7, 2026 (view filing) | May 5 | 2 days | Guo Jack Q.EVP & CFO | SSale | −25.2K | $32.62 | −$822.1K | −12.0%185.4K after |
Top 10 13F holders, Q2 2026
See all 393 holdersThe largest institutional positions in Constellium SE at the end of Q2 2026; share changes are against Q1 2026.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| BlackRock, Inc. | 12,802,322 | $408.0M | 0.01% | −161,881−1.2% | Reduced |
| Bpifrance SA | 8,403,903 | $267.8M | 19.67% | −4,190,000−33.3% | Reduced |
| Morgan Stanley | 6,183,255 | $197.1M | 0.01% | +2,987,201+93.5% | Added |
| Vanguard Portfolio Management LLC | 4,391,756 | $140.0M | 0.01% | +464,659+11.8% | Added |
| American Century Companies Inc | 4,220,743 | $134.5M | 0.06% | +2,135,264+102.4% | Added |
| T. Rowe Price Investment Management, Inc. | 2,980,566 | $95.0M | 0.06% | −980,253−24.7% | Reduced |
| State Street Corp | 2,954,799 | $94.2M | 0.00% | +191,304+6.9% | Added |
| Arrowstreet Capital, Limited Partnership | 2,844,747 | $90.7M | 0.04% | −383,280−11.9% | Reduced |
| Nuveen, LLC | 2,770,828 | $88.3M | 0.02% | −56,903−2.0% | Reduced |
| Kinetic Partners Management, LP | 2,542,400 | $81.0M | 1.93% | +1,230,000+93.7% | Added |
Holders of 5% or more of CSTM
See all 2 holders and filingsHolders whose latest Schedule 13D or 13G filing reports 5% or more of Constellium SE.
| Holder | Latest form | Stake | Change | First filed | Latest filing | Filing |
|---|---|---|---|---|---|---|
| Bpifrance Participations SA | 13D/A | 6.20%8.40M shares | – | Aug 10, 20233 filings | May 28, 2026 | SEC |
| BlackRock, Inc. | 13G | 5.80%8.27M shares | +0.80 ppfrom 5.00% | Oct 22, 20244 filings | Jul 17, 2025 | SEC |