CENX
Century Aluminum CoCompany with tickers: CENX
CIK
949157
CUSIP
156431108
Shares Outstanding
98,974,047
Price History
Institutional Holders
Short Volume
Short Interest
Fails to Deliver
Financials
SEC Filings
Earnings Calls
Insider Trades
Congressional Trades
Holders: 2
Total Value: $4,231,959
Total Shares: 72,107
Institutional Ownership Trend
Holder Concentration
Across 2 13F filers · Δ vs Dec 31, 2025Top Holder
100.0%
+53.1 pts
Top 5
100.0%
+35.4 pts
Top 10
100.0%
+27.1 pts
HHI
9,994
Highly concentrated
+7,675
Quarterly Activity
vs Dec 31, 2025
New
1
Increased
1
Decreased
0
Sold Out
326
Unchanged
0
Holder count:
-325
Institutional value:
-99.9%
Shares held:
-99.9%
Top Buyers
vs Dec 31, 2025| Institution | Added | Now Holds |
|---|---|---|
| Small Essential Partners LLC | +1 | 22 |
Top Sellers
vs Dec 31, 2025No qualifying movers this quarter.
Top New Positions
vs Dec 31, 2025| Institution | Acquired | Value (USD) |
|---|---|---|
| Mid SEGALL BRYANT & HAMILL, LLC | 72,085 | $4,230,668 |
Top Sold-Out Positions
vs Dec 31, 2025| Institution | Previously Held | Last Value (USD) |
|---|---|---|
| Mid Glencore plc | 53,511,894 | $2,096,596,006 |
| Mega BlackRock, Inc. | 9,484,567 | $371,605,329 |
| Mega STATE STREET CORP | 4,295,711 | $168,305,956 |
| Mid Sourcerock Group LLC | 3,621,984 | $141,909,333 |
| Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP | 2,959,083 | $115,936,871 |
| Holder | Value (USD) | % of 13F | Shares | Type | Discretion | Filed | Action | |
|---|---|---|---|---|---|---|---|---|
| Mid SEGALL BRYANT & HAMILL, LLC | $4,230,668 | 99.97% | 72,085 | Shares | Sole | 2026-05-22 | View | |
| Small Essential Partners LLC | $1,291 | 0.03% | 22 | Shares | Sole | 2026-05-21 | View | |
| No holders match your search. | ||||||||