CSTM Constellium N.V.
Constellium N.V. (CSTM) Institutional Ownership
What the institutions did with CSTM last quarter, from their 13F filings. Counting managers rather than shares is the point: a single index fund adding to a position tells you far less than four hundred separate managers all deciding to. Positions as reported for the quarter ended June 30, 2026.
Every manager below opens. Subscribers can see any firm's whole portfolio — every position, its weight, and what they bought, trimmed and exited last quarter.
Sign in or subscribeLargest holders
| Manager | Shares | % of reported |
|---|---|---|
| BlackRock, Inc. | 12.8M | 10.6% |
| Bpifrance SA | 8.4M | 7.0% |
| MORGAN STANLEY | 6.2M | 5.1% |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 4.4M | 3.6% |
| AMERICAN CENTURY COMPANIES INC | 4.2M | 3.5% |
| T. Rowe Price Investment Management, Inc. | 3.0M | 2.5% |
| STATE STREET CORP | 3.0M | 2.4% |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | 2.8M | 2.4% |
| Nuveen, LLC | 2.8M | 2.3% |
| Kinetic Partners Management, LP | 2.5M | 2.1% |
| Encompass Capital Advisors LLC | 2.4M | 2.0% |
| AQR CAPITAL MANAGEMENT LLC | 2.4M | 2.0% |
| HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND | 2.3M | 1.9% |
| D. E. Shaw & Co., Inc. | 2.2M | 1.8% |
| FMR LLC | 2.2M | 1.8% |
| ALLIANCEBERNSTEIN L.P. | 2.2M | 1.8% |
| ACADIAN ASSET MANAGEMENT LLC | 2.1M | 1.7% |
| GOLDMAN SACHS GROUP INC | 2.1M | 1.7% |
| MILLENNIUM MANAGEMENT LLC | 2.0M | 1.6% |
| BRIGHTLINE CAPITAL MANAGEMENT, LLC | 1.9M | 1.6% |
| NOMURA ASSET MANAGEMENT INTERNATIONAL INC. | 1.9M | 1.5% |
| GEODE CAPITAL MANAGEMENT, LLC | 1.8M | 1.5% |
| SCOPUS ASSET MANAGEMENT, L.P. | 1.7M | 1.4% |
| SG Americas Securities, LLC | 1.2M | 1.0% |
| JPMORGAN CHASE & CO | 1.1M | 0.9% |
Largest changes
| Manager | Action | Previous | Current | Change |
|---|---|---|---|---|
| FMR LLC | Reduced | 7.0M | 2.2M | -4.8M |
| Bpifrance SA | Reduced | 12.6M | 8.4M | -4.2M |
| MORGAN STANLEY | Increased | 3.2M | 6.2M | +3.0M |
| AMERICAN CENTURY COMPANIES INC | Increased | 2.1M | 4.2M | +2.1M |
| MILLENNIUM MANAGEMENT LLC | Reduced | 3.5M | 2.0M | -1.5M |
| Kinetic Partners Management, LP | Increased | 1.3M | 2.5M | +1.2M |
| Senator Investment Group LP | New | 0 | 1.1M | +1.1M |
| MARSHALL WACE, LLP | Increased | 13.8K | 1.1M | +1.1M |
| D. E. Shaw & Co., Inc. | Reduced | 3.2M | 2.2M | -1.0M |
| T. Rowe Price Investment Management, Inc. | Reduced | 4.0M | 3.0M | -980.3K |
| JPMORGAN CHASE & CO | Reduced | 2.1M | 1.1M | -905.8K |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | Reduced | 855.7K | 3.0K | -852.6K |
| ACADIAN ASSET MANAGEMENT LLC | Increased | 1.3M | 2.1M | +834.6K |
| GOLDMAN SACHS GROUP INC | Increased | 1.4M | 2.1M | +698.9K |
| Engineers Gate Manager LP | Reduced | 884.1K | 197.7K | -686.4K |
| JANE STREET GROUP, LLC | Reduced | 832.5K | 153.5K | -678.9K |
| Soapstone Management L.P. | Reduced | 800.0K | 200.0K | -600.0K |
| Cannell & Spears LLC | Reduced | 909.2K | 416.9K | -492.3K |
| VANGUARD PORTFOLIO MANAGEMENT LLC | Increased | 3.9M | 4.4M | +464.7K |
| MACKENZIE FINANCIAL CORP | Increased | 181.5K | 592.5K | +411.1K |
| WELLS FARGO & COMPANY/MN | Increased | 95.1K | 498.8K | +403.7K |
| BEACONLIGHT CAPITAL, LLC | Reduced | 1.2M | 779.9K | -391.9K |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | Reduced | 3.2M | 2.8M | -383.3K |
| HRT FINANCIAL LP | Increased | 518.8K | 874.1K | +355.3K |
| PANAGORA ASSET MANAGEMENT INC | Increased | 704.8K | 1.0M | +343.5K |
13F filings are due 45 days after quarter end and cover long positions in U.S.-listed equities only, so this is a lagged and partial picture: shorts, bonds and foreign listings never appear. Options positions are excluded here rather than folded into the share counts. Political ownership is coming.