Security key
F21107101
CONSTELLIUM SE - Ordinary Shares, nominal value EUR0.02 per share (CSTM)
CUSIP: F21107101
Q4 2025 13F Holders as of 31 Dec 2025
- Security type / class
- Equity / Ordinary Shares, nominal value EUR0.02 per share
- Total 13F shares
- 122,571,686
- Total 13F value
- $2,310,482,590
- Share change
- -5,778,613
- Put/Call ratio
- 16%
- SEC-reported price per share
- $18.85
- Number of holders
- 251
- Value change
- -$97,429,009
- Number of buys
- 126
- Number of sells
- 114
- Shares outstanding
- 135,546,823
Holder snapshot
7 signals
Open additional details 1 more signal available
Security identity
Names, identifiers, and filing context for this profile.
1 source field
Report period
Q4 2025
Institutions
251
Top holders
10
CSTM full security history
Ownership snapshot
Full 13F holder table
Newer quarter: Q1 2026
Previous quarter: Q3 2025
CONSTELLIUM SE SEC filings
CONSTELLIUM SE company facts
Broader feeds
Reporting periods
Holder history for CUSIP F21107101
Recent filing periods:
Ownership snapshot
Top reported holders of CSTM - CONSTELLIUM SE - Ordinary Shares, nominal value EUR0.02 per share (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
BlackRock, Inc.
Disclosed value leader
BlackRock, Inc.
Comparable rows
15/15
Latest evidence
30 Sep 2025
13F
13D/G
Lead comparable stake: 5.8%
13D/G row: BlackRock, Inc.
Showing 1-6 of 15 holder rows.
Quick read
BlackRock, Inc. leads the comparable SEC ownership view at 5.8%.
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 BlackRock, Inc.'s linked filing trail.
Comparable ownership
Top 5
BlackRock, Inc.
5.8%
T. Rowe Price Investment Manageme...
4.5%
FMR LLC
10%
Bpifrance SA
9.3%
MILLENNIUM MANAGEMENT LLC
5.1%
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 |
|---|---|---|---|---|---|
| BlackRock, Inc. |
13F
13D/G
Company
|
5.8%
from 13D/G
|
$208,605,740
14,019,203 shares
|
— | 30 Sep 2025 |
| T. Rowe Price Investment Management, Inc. |
13D/G
13F
Company
|
4.5%
|
$85,590,905
6,274,993 shares
|
-$109,593,690 | 31 Aug 2025 |
| FMR LLC |
13F
Company
|
10%
|
$201,148,897
13,518,071 shares
|
— | 30 Sep 2025 |
| Bpifrance SA |
13F
Company
|
9.3%
|
$187,397,277
12,593,903 shares
|
— | 30 Sep 2025 |
| MILLENNIUM MANAGEMENT LLC |
13F
Company
|
5.1%
|
$103,204,198
6,935,766 shares
|
— | 30 Sep 2025 |
| Nut Tree Capital Management, LP |
13F
Company
|
3.8%
|
$77,582,832
5,213,900 shares
|
— | 30 Sep 2025 |
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 Q4 2025
Investor-level positions for this CUSIP, loaded as an interactive table.
Institutions
251
Shares
122,571,686
Rows available
251
| 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 Q4 2025 vs Q3 2025 Across Filers
Q3 2025 holders
233
Q4 2025 holders
251
Holder diff
18
| Investor | Q3 2025 Shares | Q4 2025 Shares | Share Diff | Share Chg % | Q3 2025 value | Q4 2025 value | Value change | Value Chg % |
|---|
Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).
Quarterly Holders Trend
Quarterly Value Trend
Quarterly Shares Trend