Security key
156431108
- Security type / class
- Equity / Common Stock
- Total 13F shares
- 96,520,734
- Total 13F value
- $2,832,919,432
- Share change
- +1,036,287
- Put/Call ratio
- 46%
- SEC-reported price per share
- $29.36
- Number of holders
- 255
- Value change
- +$54,258,975
- Number of buys
- 149
- Number of sells
- 111
- Shares outstanding
- 99,220,963
Holder snapshot
7 signals
Show 1 more signal
Security identity
1 source field
Report period
Q3 2025
Institutions
255
Top holders
10
CENX full security history
Ownership snapshot
Full 13F holder table
Newer quarter: Q4 2025
Previous quarter: Q2 2025
CENTURY ALUMINUM CO SEC filings
CENTURY ALUMINUM CO company facts
Broader feeds
Reporting periods
Holder history for CUSIP 156431108
Recent filing periods:
Ownership snapshot
Top reported holders of CENX - CENTURY ALUMINUM CO - 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
Jarl Berntzen
Disclosed value leader
Glencore plc
Comparable rows
15/15
Latest evidence
30 Jun 2025
3/4/5
13F
Lead comparable stake: 0.21%
Showing 1-6 of 15 holder rows.
Quick read
Jarl Berntzen leads the comparable SEC ownership view at 0.21%.
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.
Comparable ownership
Top 5
Jarl Berntzen
0.21%
Errol Glasser
0.12%
Andrew G. Michelmore
0.09%
Jennifer Mary Bush
0.05%
Tamla A. Olivier
0.03%
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 |
|---|---|---|---|---|---|
| Jarl Berntzen |
3/4/5
Director
|
0.21%
|
$3,378,737
208,951 shares
|
— | 16 Jun 2025 |
| Errol Glasser |
3/4/5
Director
|
0.12%
|
$1,919,330
118,697 shares
|
— | 16 Jun 2025 |
| Andrew G. Michelmore |
3/4/5
Director
|
0.09%
|
$1,546,585
89,089 shares
|
— | 16 Jun 2025 |
| Jennifer Mary Bush |
3/4/5
Director
|
0.05%
|
$757,920
46,872 shares
|
— | 16 Jun 2025 |
| Tamla A. Olivier |
3/4/5
Director
|
0.03%
|
$479,812
29,673 shares
|
— | 16 Jun 2025 |
| Glencore plc |
13F
Company
|
40%
|
$721,782,234
40,054,508 shares
|
— | 30 Jun 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 Q3 2025
Investor-level positions for this CUSIP, loaded as an interactive table.
Institutions
255
Shares
96,520,734
Rows available
255
| 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 2025 vs Q2 2025 Across Filers
Q2 2025 holders
221
Q3 2025 holders
255
Holder diff
34
| Investor | Q2 2025 Shares | Q3 2025 Shares | Share Diff | Share Chg % | Q2 2025 value | Q3 2025 value | Value change | Value Chg % |
|---|
Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).
Quarterly Holders Trend
Quarterly Value Trend
Quarterly Shares Trend