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.
Q1 2026 vs. Q4 2025
How the institutions holding Constellium SE changed between Q4 2025 and Q1 2026.
All holders in Q1 2026All holders in Q4 2025
| Measure | Q4 2025 | Of which not filed for Q1 2026 | Q1 2026 | Change |
|---|---|---|---|---|
| Holders | 253 | 4 | 315 | +66 |
| Shares | 124.3M | 4.06M | 126.0M | +5.79M (+4.8%) |
| Value | $2.34B | $76.6M | $3.08B | +$815.3M (+36.0%) |
4 institutions that held it in Q4 2025 haven't filed for Q1 2026 yet. Not filing isn't selling, so the changes leave them out.
New holders (88)
Institutions that held Constellium SE at the end of Q1 2026 but not at the end of Q4 2025.
Sold out (22)
Institutions that held Constellium SE at the end of Q4 2025 and filed for Q1 2026 without it.
| Institution | Shares, Q4 2025 | Value, Q4 2025 |
|---|---|---|
| Nut Tree Capital Management, LP | 3,225,000 | $60.8M |
| Capstone Investment Advisors, LLC | 1,194,936 | $22.5M |
| Empowered Funds, LLC | 671,222 | $12.7M |
| Tudor Investment Corp Et Al | 496,715 | $9.36M |
| Wellington Management Group LLP | 470,813 | $8.87M |
| Hotchkis & Wiley Capital Management LLC | 448,180 | $8.45M |
| Adage Capital Partners GP, L.L.C. | 300,000 | $5.66M |
| Two Sigma Advisers, LP | 59,500 | $1.12M |
| XTX Topco Ltd | 35,285 | $665.1K |
| PharVision Advisers, LLC | 24,466 | $461.2K |
| Jain Global LLC | 18,089 | $341.0K |
| Aristides Capital LLC | 15,659 | $295.2K |
| nVerses Capital, LLC | 15,298 | $288.4K |
| Polymer Capital Management (US) LLC | 15,200 | $286.5K |
| Belpointe Asset Management LLC | 11,920 | $224.7K |
| Baader Bank INC | 10,000 | $188.5K |
| Group One Trading, L.P. | 7,581 | $142.9K |
| Amalgamated Bank | 4,313 | $81.0K |
| Aster Capital Management (DIFC) Ltd | 1,032 | $19.5K |
| TD Waterhouse Canada Inc. | 1,000 | $18.9K |
| Clearstead Advisors, LLC | 60 | $1.13K |
| SWAN Capital LLC | 25 | $471 |
Not filed for Q1 2026 yet (4)
Institutions that held Constellium SE at the end of Q4 2025 and haven't filed a 13F for Q1 2026. Not filing isn't selling, so they aren't counted as sold out.
| Institution | Shares, Q4 2025 | Value, Q4 2025 |
|---|---|---|
| Vanguard Group Inc | 4,054,982 | $76.4M |
| EMC Capital Management | 8,629 | $163.0K |
| CIBC Private Wealth Group, LLC | 250 | $4.71K |
| Global Retirement Partners, LLC | 36 | $679 |