Constellium SE 13F holders
388 funds reported a position in Constellium SE in their 13F for the quarter ended 30 June 2026, together 119.8 million shares worth $3.80 billion. Against the quarter before, 98 opened a position, 146 added, 110 trimmed and 30 sold out; together they sold a net 4.6 million shares. The largest holders: BlackRock, Inc., Bpifrance SA and Morgan Stanley.
Funds holding388+75 on Q1 2026
Shares they held119.8Mworth $3.80 billion
Net sold on the quarter4.6M sharesabout $146.9 million at the funds' values
Funds buying to selling244 to 140opened or added, to cut or sold
Opened 98Added 146Held 29Trimmed 110Sold out 30
What each fund did in CSTM against its 13F for the quarter before; a change under 0.1% of a holding counts as held
Funds reporting a position in CSTM in their 13F, each quarter; hover a bar for the shares they held
Filed so far for the quarter to 30 September 2026
2,671 funds have filed their 13F for the quarter so far; the rest are due by 16 November 2026. Of those, 49 reported a position in Constellium SE: 5 opened one, 21 added, 11 trimmed and 14 sold out, a net 57,047 shares sold.
The largest moves in the name among the funds that have filed, against each fund's previous 13F.
The well-known funds
Of the 44 funds followed here, 8 reported a position in Constellium SE in a 13F for the quarter ended 30 June 2026. The largest: FMR LLC, 2.2 million shares worth $69.9 million, 0.0% of its reported book. In the quarter, 2 funds added or opened a position and 5 trimmed or sold out; together they sold a net 6.8 million shares, about $215.3 million at the funds' own value per share on 30 June 2026. A change under 0.1% of a holding counts as held.
| Fund | Shares | Value | Of its book | Change on the quarter | Status | Quarter ended | Filing |
|---|---|---|---|---|---|---|---|
| FMR LLC | 2,194,722 | $69.9 million | 0.0% | -4,767,046 | trimmed | 30 June 2026 | 13F |
| Millennium Management | 1,956,365 | $62.3 million | 0.0% | -1,513,726 | trimmed | 30 June 2026 | 13F |
| Geode Capital Management | 1,789,723 | $57.0 million | 0.0% | +121,272 | added | 30 June 2026 | 13F |
| Point72 Asset Management | 821,701 | $26.2 million | 0.0% | -183,502 | trimmed | 30 June 2026 | 13F |
| Citadel Advisors | 474,311 | $15.1 million | 0.0% | -296,297 | trimmed | 30 June 2026 | 13F |
| Two Sigma Investments | 365,357 | $11.6 million | 0.0% | +76,457 | added | 30 June 2026 | 13F |
| Bridgewater Associates | 311,558 | $9.9 million | 0.0% | -191,413 | trimmed | 30 June 2026 | 13F |
| Norges Bank | 31,000 | $987,970 | 0.0% | held | 30 June 2026 | 13F |
Value is what the fund reported.
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Change is shares against the fund's previous 13F; a fund with one filing read shows no change. 13Fs cover long US positions of managers above $100 million and are filed up to 45 days after the quarter.The largest holders
| Fund | Shares | Share of all | Value | Of its book | Change in shares | Filing |
|---|---|---|---|---|---|---|
| BlackRock, Inc. | 12,802,322 | 10.68% | $408.0 million | 0.01% | -161,881 | 13F |
| Bpifrance SA | 8,403,903 | 7.01% | $267.8 million | 19.67% | -4,190,000 | 13F |
| Morgan Stanley | 6,183,255 | 5.16% | $197.1 million | 0.01% | +2,987,201 | 13F |
| Vanguard Portfolio Management LLC | 4,391,756 | 3.67% | $140.0 million | 0.01% | +464,659 | 13F |
| American Century Companies Inc. | 4,220,743 | 3.52% | $134.5 million | 0.06% | +2,135,264 | 13F |
| T. Rowe Price Investment Management, Inc. | 2,980,566 | 2.49% | $95.0 million | 0.06% | -980,253 | 13F |
| State Street Corp. | 2,954,799 | 2.47% | $94.2 million | 0.00% | +191,304 | 13F |
| Arrowstreet Capital, Limited Partnership | 2,844,747 | 2.37% | $90.7 million | 0.04% | -383,280 | 13F |
| Nuveen, LLC | 2,770,828 | 2.31% | $88.3 million | 0.02% | -56,903 | 13F |
| Kinetic Partners Management, LP | 2,542,400 | 2.12% | $81.0 million | 1.93% | +1,230,000 | 13F |
| Encompass Capital Advisors LLC | 2,421,349 | 2.02% | $77.2 million | 3.33% | -55,929 | 13F |
| AQR Capital Management LLC | 2,402,937 | 2.01% | $76.6 million | 0.03% | +328,076 | 13F |
| Healthcare of Ontario Pension Plan Trust Fund | 2,278,202 | 1.90% | $72.6 million | 0.10% | +221,866 | 13F |
| D. E. Shaw & Co., Inc. | 2,198,618 | 1.83% | $70.1 million | 0.04% | -1,035,958 | 13F |
| FMR LLC | 2,194,722 | 1.83% | $69.9 million | 0.00% | -4,767,046 | 13F |
| Acadian Asset Management LLC | 2,107,513 | 1.76% | $67.1 million | 0.08% | +834,642 | 13F |
| Goldman Sachs Group Inc. | 2,070,665 | 1.73% | $66.0 million | 0.01% | +698,889 | 13F |
| Millennium Management LLC | 1,956,365 | 1.63% | $62.3 million | 0.04% | -1,513,726 | 13F |
| Brightline Capital Management, LLC | 1,923,000 | 1.60% | $61.3 million | 13.28% | +76,000 | 13F |
| Nomura Asset Management International Inc. | 1,856,018 | 1.55% | $59.2 million | 0.09% | -57,415 | 13F |
| Geode Capital Management, LLC | 1,789,723 | 1.49% | $57.0 million | 0.00% | +121,272 | 13F |
| AllianceBernstein L.P. | 2,162,231 | 1.80% | $53.1 million | 0.02% | -154,777 | 13F |
| Allianz Asset Management GmbH | 1,453,717 | 1.21% | $46.3 million | 0.04% | +559,780 | 13F |
| SG Americas Securities, LLC | 1,234,038 | 1.03% | $39.3 million | 0.02% | -263,422 | 13F |
| JPMorgan Chase & Co. | 1,146,089 | 0.96% | $35.9 million | 0.00% | -905,841 | 13F |
| Westwood Holdings Group Inc. | 1,099,362 | 0.92% | $35.0 million | 0.26% | -302,054 | 13F |
| Marshall Wace, LLP | 1,093,740 | 0.91% | $34.9 million | 0.03% | +1,079,965 | 13F |
| Senator Investment Group LP | 1,083,489 | 0.90% | $34.5 million | 1.26% | new | 13F |
| Panagora Asset Management Inc. | 1,048,331 | 0.87% | $33.4 million | 0.10% | +343,491 | 13F |
| Northern Trust Corp. | 984,446 | 0.82% | $31.4 million | 0.00% | +6,863 | 13F |
| Bank of America Corp. | 957,579 | 0.80% | $30.5 million | 0.00% | +106,357 | 13F |
| William Blair Investment Management, LLC | 882,306 | 0.74% | $28.1 million | 0.09% | -35,784 | 13F |
| HRT Financial LP | 874,136 | 0.73% | $27.9 million | 0.05% | +355,304 | 13F |
| Federated Hermes, Inc. | 838,604 | 0.70% | $26.7 million | 0.04% | +185,946 | 13F |
| Point72 Asset Management, L.P. | 821,701 | 0.69% | $26.2 million | 0.04% | -183,502 | 13F |
| Beaconlight Capital, LLC | 779,899 | 0.65% | $24.9 million | 10.94% | -391,913 | 13F |
| Penn Capital Management Company, LLC | 749,645 | 0.63% | $23.9 million | 1.52% | -95,289 | 13F |
| Charles Schwab Investment Management Inc. | 734,247 | 0.61% | $23.4 million | 0.00% | -48,990 | 13F |
| Bayberry Capital Partners LP | 655,000 | 0.55% | $20.9 million | 7.19% | -219,000 | 13F |
| Danske Bank A/s | 642,706 | 0.54% | $20.5 million | 0.04% | +247,266 | 13F |
| Balyasny Asset Management L.P. | 641,403 | 0.54% | $20.4 million | 0.04% | -154,010 | 13F |
| Qube Research & Technologies Ltd | 622,121 | 0.52% | $19.8 million | 0.02% | +151,192 | 13F |
| Mackenzie Financial Corp. | 592,538 | 0.49% | $18.9 million | 0.02% | +411,068 | 13F |
| Fisher Asset Management, LLC | 552,416 | 0.46% | $17.6 million | 0.01% | +12,965 | 13F |
| New York State Common Retirement Fund | 520,203 | 0.43% | $16.6 million | 0.02% | -49,984 | 13F |
| Raymond James Financial Inc. | 512,254 | 0.43% | $16.3 million | 0.00% | +183,466 | 13F |
| Wells Fargo & Company | 498,794 | 0.42% | $15.9 million | 0.00% | +403,684 | 13F |
| Jupiter Topco LLC | 494,899 | 0.41% | $15.8 million | 0.01% | first 13F | 13F |
| Mountaineer Partners Management, LLC | 482,130 | 0.40% | $15.4 million | 11.18% | -176,360 | 13F |
| Russell Investments Group, Ltd. | 475,520 | 0.40% | $15.1 million | 0.01% | +10,123 | 13F |
The 50 largest of the 388 funds that reported a position in CSTM in their 13F for the quarter ended 30 June 2026, by the value each reported.
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Share of all is the fund's part of all the shares the funds reported. Change is shares against the fund's 13F for the quarter before. A 13F lists a manager's long positions in US-listed shares at the quarter's end. What is a 13F?Options the funds reported on CSTM
| Fund | Option | Shares under the options | Value of those shares | Quarter ended | Filing |
|---|---|---|---|---|---|
| Citadel Advisors | Calls | 203,400 | $6.5 million | 30 June 2026 | 13F |
| Citadel Advisors | Puts | 170,900 | $5.4 million | 30 June 2026 | 13F |
A 13F lists calls and puts by the shares they cover and what those shares were worth at the quarter's end, not what the options cost.
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They are not counted in the holdings above. A put gains when the stock falls, a call when it rises, and a fund may hold either to hedge.Schedule 13D and 13G filed on the name, last twelve months
| Filed | Schedule | Who | Holding | Of the class | Event date | Rule or purpose | Filing |
|---|---|---|---|---|---|---|---|
| 6 August 2026 | 13G/A | FMR LLC and 3 others | 2.2 million | 1.6% | 30 June 2026 | passive, institutional (13d-1(b)) | EDGAR |
| 28 May 2026 | 13D/A | Caisse des Depots (CDC) and 3 others | 8.4 million | 6.2% | 26 May 2026 | Item 4 is hereby amended and supplemented as follows: On May 26, 2026, Bpifrance Participations sold 4,190,000 Ordinary Shares by two block trades each at $33.89 per share. All of the Ordinary Shares that are held of record by the Reporting | EDGAR |
| 6 May 2026 | 13G/A | FMR LLC and 3 others | 7.0 million | 5.1% | 31 March 2026 | passive, institutional (13d-1(b)) | EDGAR |
| 24 April 2026 | 13G/A | Millennium Management LLC and 5 others | 3.5 million | 2.5% | 31 March 2026 | passive, under 20% (13d-1(c)) | EDGAR |
| 5 February 2026 | 13G/A | FMR LLC and 3 others | 10.6 million | 7.7% | 31 December 2025 | passive, institutional (13d-1(b)) | EDGAR |
A Schedule 13D is filed by anyone who crosses 5% of a class with intent to influence; a 13G by a passive holder.
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Amendments (/A) report a change, including an exit to zero. Holding and percentage are as the filer stated them on the cover page; the purpose is the filer's own words, cut short. 13D and 13GFails to deliver
Shares that failed to deliver at settlement, per day, from the SEC's half-month files, which arrive about two weeks after the period.