AI summary pending
View Full Filing (SEC EDGAR)Century Aluminum Company
$35.03+2.4%
+$450.4M
Net Activity
+7.29% total shares
Institutions Holding
420
Popularity Rank
#1467
Avg Weight
0.26%
Total Value
$5.1B
Market Cap
$3.3B
420 institutions currently hold CENX, with 266 net buyers and 177 net sellers this quarter.
Institutional Moves (Q2 2026)
Majority Increased
Based on recent trading activity
Net Selling Institutions
177
Net Buying Institutions
266
Top 5 by Value
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Across its top 20 institutional holders, CENX's holder base skews toward low-concentration, low-turnover investors on average (avg. concentration score 14/100, avg. turnover score 42/100).
CENX ranks #1467 out of 37696 tracked stocks by institutional interest — one of the most closely watched names in our coverage.
CENX is a top-conviction position for Glencore plc — at 28.1% of their entire disclosed 13F portfolio, it's one of their largest single bets, not just a passing allocation.
Glencore plc has trimmed its CENX position for two straight quarters, cutting it by $674.3M while still holding $1.1B.
CENX is up 2.4% today, and institutions have been net buyers of $450.4M this quarter — today's price move and the underlying institutional flow are pointing the same direction.
CENX posted net income of $603.5M over the trailing twelve months, and currently trades at a P/E of 5.5.
+$962.7M
Total Buy Value
$635.9M
Total Sell Value
266
Net Buyers
177
Net Sellers
CENX
Q2 2026
Top 5 Institutional Movers
-$376.5M
-$69.2M
-$65.9M
-$64.8M
CENX does not currently have enough recent insider (Form 4) trading activity to compute a convergence signal against its 13F institutional flows.
13F data as of 2026-09-30 quarterly filings. Note: many large institutions file close to the 45-day post-quarter deadline, so early-quarter flow figures can shift substantially as more filings arrive.
No Form 144 planned sale filings in the last 90 days
1
Active 5%+ Holders
| Reporting Person | Type | Filing Date | % of Class |
|---|---|---|---|
| BlackRock, Inc. | 13G/A | 2026-10-05 | 10.5% |
| BlackRock, Inc. | 13G/A | 2026-07-27 | 9.5% |
1
Filings (14d)
AI summary pending
View Full Filing (SEC EDGAR)156431108
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Access CENX's institutional ownership data programmatically:
REST API
curl https://alphasmo.com/api/v1/market/stock/CENXCLI
npx alphasmo stocks get CENXFull API & MCP documentation →