| Filer | Ownership | Change % | Holdings Value | Net Change | Nb Shares | Change % | Reporting Name | Report Period |
|---|---|---|---|---|---|---|---|---|
| FMR LLC | 7.7% | $199,232,041 | 10,569,283 | FMR LLC | 31 Dec 2025 | |||
| BlackRock, Inc. | 5.8% | +16% | $110,045,038 | +$14,694,811 | 8,274,063 | +15% | BlackRock, Inc. | 30 Jun 2025 |
| MILLENNIUM MANAGEMENT LLC | 5.3% | +40% | $101,669,423 | +$31,800,351 | 7,453,770 | +46% | Millennium Management LLC | 10 Sep 2025 |
| T. Rowe Price Investment Management, Inc. | 4.5% | -55% | $85,590,905 | -$109,593,690 | 6,274,993 | -56% | T. Rowe Price Investment Management, Inc. | 31 Aug 2025 |
As of 31 Dec 2025, 247 institutional investors reported holding 122,475,457 shares of CONSTELLIUM SE - Ordinary Shares (CSTM). This represents 89% of the company’s total 137,263,416 outstanding shares.
The largest institutional shareholders of CONSTELLIUM SE - Ordinary Shares (CSTM) together control 66% of the company’s outstanding shares — a level of ownership often associated with strong institutional conviction and long‑term capital commitment.
| Institution | Ownership % | Shares Held | Share Change % | Portfolio % | Holdings Value |
|---|---|---|---|---|---|
| BlackRock, Inc. | 10% | 13,730,294 | -2.1% | 0% | $258,816,041 |
| Bpifrance SA | 9.2% | 12,593,903 | 0% | 10% | $237,395,072 |
| FMR LLC | 7.7% | 10,569,283 | -22% | 0.01% | $199,230,985 |
| MILLENNIUM MANAGEMENT LLC | 4.6% | 6,269,869 | -9.6% | 0.08% | $118,187,031 |
| Encompass Capital Advisors LLC | 3.4% | 4,657,915 | +9.2% | 4.2% | $87,801,698 |
| T. Rowe Price Investment Management, Inc. | 3.2% | 4,334,727 | -15% | 0.05% | $81,710,000 |
| VANGUARD GROUP INC | 3% | 4,054,982 | +23% | 0% | $76,436,410 |
| MORGAN STANLEY | 2.7% | 3,728,118 | +48% | 0% | $70,275,043 |
| Nut Tree Capital Management, LP | 2.3% | 3,225,000 | -38% | 11% | $60,791,250 |
| D. E. Shaw & Co., Inc. | 2.2% | 3,055,291 | +25% | 0.04% | $57,592,236 |
| Nuveen, LLC | 2.1% | 2,840,961 | -0.32% | 0.01% | $53,552,114 |
| STATE STREET CORP | 1.9% | 2,660,518 | +3.6% | 0% | $50,150,764 |
| JPMORGAN CHASE & CO | 1.5% | 2,089,412 | -13% | 0% | $39,385,416 |
| NOMURA ASSET MANAGEMENT INTERNATIONAL INC. | 1.4% | 1,944,239 | 0% | 0.06% | $36,649,000 |
| BRIGHTLINE CAPITAL MANAGEMENT, LLC | 1.3% | 1,842,000 | +13% | 14% | $34,721,700 |
| AMERICAN CENTURY COMPANIES INC | 1.3% | 1,811,344 | +55% | 0.02% | $34,143,834 |
| AQR CAPITAL MANAGEMENT LLC | 1.3% | 1,766,503 | +38% | 0.02% | $33,298,578 |
| GEODE CAPITAL MANAGEMENT, LLC | 1.2% | 1,631,574 | -4.5% | 0% | $30,751,882 |
| GOLDMAN SACHS GROUP INC | 1% | 1,367,485 | +13% | 0% | $25,777,092 |
| Soapstone Management L.P. | 0.98% | 1,350,000 | -19% | 19% | $25,447,500 |
| BEACONLIGHT CAPITAL, LLC | 0.98% | 1,339,934 | +5.2% | 15% | $25,257,756 |
| CAPSTONE INVESTMENT ADVISORS, LLC | 0.87% | 1,194,936 | -5.3% | 0.18% | $22,524,544 |
| Engineers Gate Manager LP | 0.76% | 1,049,218 | +36% | 0.23% | $19,777,759 |
| COOPER CREEK PARTNERS MANAGEMENT LLC | 0.73% | 999,209 | -40% | 0.89% | $18,835,000 |
| Kailix Advisors LLC | 0.71% | 978,057 | -11% | 21% | $18,436,374 |
| Period | Reported Shares, Excl. Options | Value, Excl. Options | Value Change | Price (Median) | Investors |
|---|---|---|---|---|---|
| 2025 Q4 | 122,475,457 | $2,308,670,533 | -$98,147,334 | $18.85 | 247 |
| 2025 Q3 | 127,209,192 | $1,892,890,005 | -$60,174,430 | $14.88 | 234 |
| 2025 Q2 | 131,403,730 | $1,747,763,305 | +$26,240,393 | $13.30 | 220 |
| 2025 Q1 | 131,724,011 | $1,329,603,393 | -$41,371,431 | $10.09 | 219 |
| 2024 Q4 | 135,085,234 | $1,387,263,339 | -$40,978,802 | $10.27 | 216 |
| 2024 Q3 | 135,141,064 | $2,197,521,719 | -$33,275,385 | $16.26 | 219 |
| 2024 Q2 | 135,236,292 | $2,551,728,494 | -$3,748,186 | $18.85 | 222 |
| 2024 Q1 | 135,670,703 | $2,999,674,203 | +$156,844,496 | $22.11 | 203 |
| 2023 Q4 | 131,982,424 | $2,630,394,795 | -$32,542,733 | $19.96 | 191 |
| 2023 Q3 | 133,798,731 | $2,427,376,081 | -$19,013,869 | $18.20 | 190 |
| 2023 Q2 | 134,840,201 | $2,319,248,185 | +$28,822,207 | $17.20 | 184 |
| 2023 Q1 | 133,335,658 | $2,037,448,361 | +$15,551,402 | $15.28 | 180 |
| 2022 Q4 | 132,820,125 | $1,571,467,832 | +$9,278,194 | $11.83 | 183 |
| 2022 Q3 | 131,333,210 | $1,332,142,046 | -$146,517,561 | $10.14 | 173 |
| 2022 Q2 | 131,191,833 | $1,733,465,535 | +$15,771,631 | $13.21 | 182 |
| 2022 Q1 | 129,862,771 | $2,337,406,926 | +$80,052,438 | $18.00 | 180 |
| 2021 Q4 | 125,444,986 | $2,245,680,516 | +$37,513,774 | $17.91 | 158 |
| 2021 Q3 | 125,499,667 | $2,357,524,460 | +$260,021,262 | $18.78 | 159 |
| 2021 Q2 | 111,678,826 | $2,115,575,656 | +$140,903,088 | $18.95 | 145 |
| 2021 Q1 | 104,659,629 | $1,537,958,550 | -$232,773 | $14.70 | 130 |
| 2020 Q4 | 104,469,239 | $1,460,530,885 | +$75,165,645 | $13.99 | 133 |
| 2020 Q3 | 99,355,679 | $780,524,275 | +$14,546,095 | $7.85 | 123 |
| 2020 Q2 | 97,654,422 | $750,539,320 | -$27,607,702 | $7.68 | 127 |
| 2020 Q1 | 103,607,598 | $540,420,578 | -$109,901,313 | $5.21 | 132 |
| 2019 Q4 | 106,135,362 | $1,423,113,091 | +$1,412,138,398 | $13.40 | 153 |
| 2019 Q3 | 80 | $2,000 | $25.00 | 1 | |
| 2019 Q2 | 80 | $2,000 | $25.00 | 1 | |
| 2019 Q1 | 80 | $2,000 | $25.00 | 1 |