Constellium Nv (CSTM)
Who owns Constellium Nv (CSTM)? This page shows the largest institutions and funds, the ownership structure and the latest insider transactions. 91.1% of the shares are freely tradable; institutional investors hold 92.0%.
Ownership Structure
Largest Shareholders
Institutions
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| BlackRock Inc | 9.57 | 12,964,203 | -5.6 | 03/31/2026 |
| Bpifrance SA | 6.20 | 8,403,903 | -33.3 | 06/30/2026 |
| FMR Inc | 5.14 | 6,961,768 | -34.1 | 03/31/2026 |
| T. Rowe Price Investment Management,Inc. | 2.92 | 3,960,819 | -33.9 | 03/31/2026 |
| Vanguard Portfolio Management, LLC | 2.90 | 3,927,097 | +0.0 | 03/31/2026 |
| Millennium Management LLC | 2.56 | 3,470,091 | -44.7 | 03/31/2026 |
| D. E. Shaw & Co LP | 2.39 | 3,234,576 | +5.9 | 03/31/2026 |
| Arrowstreet Capital Limited Partnership | 2.38 | 3,228,027 | +620.9 | 03/31/2026 |
| Morgan Stanley - Brokerage Accounts | 2.36 | 3,196,054 | -14.3 | 03/31/2026 |
Funds
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| iShares Russell 2000 ETF | 2.56 | 3,489,469 | +1.1 | 07/28/2026 |
Largest reported positions according to regulatory filings; stake as a percentage of shares outstanding, change versus the previous filing. Source: fundamentals data.
Insider Transactions
| Date | Person | Role | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| 10. Jul 2026 | Joerg Ingrid | CEO | Other | 2,984 | 29.28 | 87,372 |
Reportable transactions by officers and major shareholders from SEC Form 4 filings. "Other" includes things like stock grants and option exercises without a buy/sell character.
View all insider transactions →Data as of: July 31, 2026 · Source: fundamental data & SEC filings (annual and quarterly reports, 10-K/10-Q)
Note: pure fact-based analysis, not investment advice and not a solicitation to buy or sell. All figures without guarantee.