CSTMConstellium SE

$27.18

Who owns CSTM

307 institutions reported holding CSTM for 2026Q1, together 90% of the company, more than the 250 a quarter earlier.

307

Institutions reporting a position · as of 2026Q1 · up from 250 the quarter before

Shares held by institutions
125.9M

Shares held by institutions · 90% of the company · long US equity positions only, as reported on Form 13F

Reported value
$3.08B

Reported value · at 2026-03-31 prices, not today's

Top 5 holders
29%

Top 5 holders · of the whole company, between five filers

Details
Reporting quarter2026-03-31
2026Q1
Quarters on record
52
New positions
75
Positions exited
25
Added to
108
Reduced
81
Top 10 holdersof the company
40%
Institutional ownership by quarter, 2013Q2 to 2026Q1
QuarterFilersSharesReported value
2026Q1307125.9M$3.08B
2025Q4250124.3M$2.34B
2025Q3236128.5M$1.91B
2025Q2223132.4M$1.76B
2025Q1218131.9M$1.33B
2024Q4217135.1M$1.39B
2024Q3220135.9M$2.21B
2024Q2222136.9M$2.58B
2024Q1205137.6M$3.04B
2023Q4193133.7M$2.67B
2023Q3189135.2M$2.41B
2023Q2186136.0M$2.34B
2023Q1180133.4M$2.04B
2022Q4184132.8M$1.57B
2022Q3177132.9M$1.35B
2022Q2185132.9M$1.76B
Largest reported holders, 2026Q1
HolderShares% of companyValue
BlackRock Inc.13.0M9.3%$319M
Bpifrance SA12.6M9.0%$310M
FMR LLC7.0M5.0%$171M
VANGUARD GROUP INC4.3M3.0%$105M
T. Rowe Price Investment Management, Inc.4.0M2.8%$97M
MILLENNIUM MANAGEMENT LLC3.5M2.5%$85M
D. E. Shaw & Co., INC.3.2M2.3%$80M
ARROWSTREET CAPITAL LIMITED PARTNERSHIP3.2M2.3%$79M
MORGAN STANLEY3.2M2.3%$79M
Nuveen Asset Management, LLC2.8M2.0%$70M

SEC Form 13F data sets (DERA bulk files). 13F is quarterly, filed up to 45 days late, and covers long US equity positions only, no shorts, no derivatives, nothing held below the reporting threshold.

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