CONSTELLIUM SE - COMMON STOCK (CSTM)

CUSIP: F21107101

Q3 2026 13F Holders as of 30 Sep 2026

Holder snapshot 6 signals
Share change
+9,605
SEC-reported price per share
$24.19
Number of holders
8
Value change
+$230,947
Number of buys
3
Number of sells
3
Security identity Names, identifiers, and filing context for this profile. 1 source field
Shares outstanding
137,170,141

Security key

F21107101

Report period

Q3 2026

Institutions

8

Top holders

8

Ownership snapshot

Top reported holders of CSTM - CONSTELLIUM SE - COMMON STOCK (13F + 13D/G + 3/4/5)

Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.

Comparable stake leader
Bpifrance Participations SA
Disclosed value leader
BlackRock, Inc.
Comparable rows
15/15
Latest evidence
03 Aug 2026
13D/G 13F 3/4/5 Lead comparable stake: 6.2% 13D/G row: Bpifrance Participations SA Showing 1-6 of 15 holder rows.

Quick read

Bpifrance Participations SA leads the comparable SEC ownership view at 6.2%.

15 of 15 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.

Open SEC evidence Opens Bpifrance Participations SA's linked filing trail.
Comparable ownership Top 5
Bpifrance Participations SA 6.2%
BlackRock, Inc. 5.8%
T. Rowe Price Investment Manageme... 4.5%
MILLENNIUM MANAGEMENT LLC 2.5%
FMR LLC 1.6%

Ownership % is shown only when SEC disclosures are safely comparable across share classes.

Detailed SEC evidence table Showing 1-6 of 15 holder rows
Holder Evidence Ownership % Position 12M Net Δ As of
Bpifrance Participations SA
13D/G
Bpifrance Participations S.A.
6.2%
$248,587,451
8,403,903 shares
$0 26 May 2026
BlackRock, Inc.
13F 13D/G
Company
5.8%
from 13D/G
$408,010,002
12,802,322 shares
— 30 Jun 2026
T. Rowe Price Investment Management, Inc.
13F 13D/G
Company
4.5%
from 13D/G
$94,991,000
2,980,566 shares
— 30 Jun 2026
MILLENNIUM MANAGEMENT LLC
13D/G 13F
Company
2.5%
$85,294,837
3,470,091 shares
-$97,918,830 31 Mar 2026
FMR LLC
13F 13D/G
Company
1.6%
from 13D/G
$69,945,799
2,194,722 shares
— 30 Jun 2026
Ingrid Joerg
3/4/5
CEO, Director
0.3%
$12,954,007
406,464 shares
-$119,364 10 Jul 2026
How to read this table

Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.

13F holder rows

Institutional holders as of Q3 2026

Investor-level positions for this CUSIP, loaded as an interactive table.

Institutions
8
Shares
46,020
Rows available
8
Investor Option Weight % Change % SEC-reported value * Price Shares Share Change Activity Report Period

* SEC-reported price is the security price as of the portfolio date and can indicate the last known price at which the security was still held. The marker flags a reported price that did not pass the local price check.

Compare Q3 2026 vs Q2 2026 Across Filers

Q2 2026 holders
388
Q3 2026 holders
8
Holder diff
-380
Investor Q2 2026 Shares Q3 2026 Shares Share Diff Share Chg % Q2 2026 value Q3 2026 value Value change Value Chg %

Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).

Quarterly Holders Trend
Quarterly Value Trend
Quarterly Shares Trend
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