MarketPeel
Insider Trading Intelligence
RH

Robert F. Hoffman

CENX
SVP, IT AND CAO · CENTURY ALUMINUM CO · CIK 0001603836
FILING MIX · LIFETIME37%/63%
BUYS
10
SELLS
17
TOTAL VALUE
$2.71M
COMPANIES
1
ACTIVE SINCE
Dec 2021
HOLDINGS NOW
56,643
AVG SELL PX
$29.41
TRADE KIND
SHOWING 27 / 27
Trades · vs SPY
Loading price series…
Performance · forward returns vs SPY
7 backtested trades · 8 horizons · 8 pendingHow are these numbers computed? →
Forward-return performance of every backtestable P/S trade by Robert F. Hoffman, measured at 8 horizons from 7 days to 2 years. Deduped per economic event so co-filings count once. Excess return = trade return minus SPY return over the same window.
HORIZONTRADESWIN RATEINSIDER RETURNSPY RETURNMEAN EXCESSMEDIAN EXCESST-STAT
7d7+57.14%-1.50%-0.37%-1.13%-2.50%
14d7+85.71%-9.35%-1.43%-7.93%-8.37%
30d7+71.43%-6.69%-0.47%-6.23%-15.73%
60d7+71.43%-12.88%+4.66%-17.54%-18.47%
90d7+42.86%-5.85%+6.78%-17.19%-10.69%
180d7(2 pending)+20.00%+5.25%+11.80%-6.55%+8.53%
1y7(2 pending)+20.00%+73.46%+16.22%+57.24%+29.61%
2y7(4 pending)+33.33%+114.75%+38.74%+76.01%+149.57%
How to read this: Insider Returnis the average raw return of the filer's trades over the horizon. SPY Return is what SPY did over those same windows — reference only, not a comparison. The headline alpha number is Mean Excess = Insider − SPY; green means the filer beat SPY, red means they trailed it. Win rate is the share of individual trades where the filer beat SPY. T-statvalues above 2 mean the alpha is unlikely to be chance given the sample size. "Pending" counts trades where the horizon hasn't elapsed yet; their stats are not included in the row average.
Holdings over time
CENX · 56,643 shares · as of Mar 11, 2026
022,68345,36768,05090,73320222023202420252026SHARES HELD
Trading cadence · quarterly flow
BUY SELL
2021
2022
2022
2022
2022
2023
2023
2023
2023
2024
2024
2024
2024
2025
2025
2025
2025
2026
FLOW · 10 buys / 17 sellsCOVERAGE · 18 quarters
Form 4 filings · all activity
COMPANYTYPESHARESPRICEVALUEHELD AFTERTRADE DATEFILEDDETAILS
CENX
CENTURY ALUMINUM CO
SALE
SVP, IT and CAO
10,529$56.51$595.0K56,643Mar 11, 2026Mar 13, 2026View →
CENX
CENTURY ALUMINUM CO
SALE
SVP, IT and CAO
10,000$56.33$563.3K67,172Mar 4, 2026Mar 6, 2026View →
CENX
CENTURY ALUMINUM CO
PURCHASEGRANT
Stock grant
5,12277,172Jan 1, 2026Jan 5, 2026View →
CENX
CENTURY ALUMINUM CO
SALE
SVP, IT and CAO
6,228$39.18$244.0K72,050Dec 31, 2025Jan 5, 2026View →
CENX
CENTURY ALUMINUM CO
PURCHASEGRANT
Stock grant
31,65090,733Dec 31, 2025Jan 5, 2026View →
CENX
CENTURY ALUMINUM CO
SALE
SVP, IT and CAO
12,455$39.18$488.0K78,278Dec 31, 2025Jan 5, 2026View →
CENX
CENTURY ALUMINUM CO
SALE
SVP, IT and CAO
5,000$20.24$101.2K59,083Mar 20, 2025Mar 24, 2025View →
CENX
CENTURY ALUMINUM CO
SALE
SVP, IT and CAO
2,500$19.99$50.0K64,083Mar 14, 2025Mar 18, 2025View →
CENX
CENTURY ALUMINUM CO
PURCHASEGRANT
Stock grant
8,25766,583Jan 1, 2025Jan 3, 2025View →
CENX
CENTURY ALUMINUM CO
SALE
SVP, IT and CAO
5,401$18.22$98.4K60,178Dec 31, 2024Jan 3, 2025View →
CENX
CENTURY ALUMINUM CO
PURCHASEGRANT
Stock grant
13,72365,579Dec 31, 2024Jan 3, 2025View →
CENX
CENTURY ALUMINUM CO
SALE
SVP, IT and CAO
1,852$18.22$33.7K58,326Dec 31, 2024Jan 3, 2025View →
CENX
CENTURY ALUMINUM CO
PURCHASEGRANT
Stock grant
14,47251,856Jan 1, 2024Jan 3, 2024View →
CENX
CENTURY ALUMINUM CO
SALE
VP, IT and CAO
1,075$12.14$13.1K39,903Dec 31, 2023Jan 3, 2024View →
CENX
CENTURY ALUMINUM CO
PURCHASEGRANT
Stock grant
2,42540,978Dec 31, 2023Jan 3, 2024View →
CENX
CENTURY ALUMINUM CO
SALE
VP, IT and CAO
2,519$12.14$30.6K37,384Dec 31, 2023Jan 3, 2024View →
CENX
CENTURY ALUMINUM CO
SALE
VP, IT and CAO
9,000$12.08$108.7K38,553Dec 21, 2023Dec 22, 2023View →
CENX
CENTURY ALUMINUM CO
SALE
VP, IT and CAO
3,000$12.00$36.0K47,553Dec 20, 2023Dec 22, 2023View →
CENX
CENTURY ALUMINUM CO
PURCHASEGRANT
Stock grant
15,82550,553Jan 1, 2023Jan 4, 2023View →
CENX
CENTURY ALUMINUM CO
SALE
VP, IT and CAO
3,745$8.18$30.6K34,728Dec 30, 2022Jan 4, 2023View →
CENX
CENTURY ALUMINUM CO
SALE
VP, IT and CAO
4,846$8.18$39.6K38,473Dec 30, 2022Jan 4, 2023View →
CENX
CENTURY ALUMINUM CO
PURCHASEGRANT
Stock grant
10,93943,319Dec 30, 2022Jan 4, 2023View →
CENX
CENTURY ALUMINUM CO
SALE
See Remarks
3,480$29.19$101.6K32,380Mar 4, 2022Mar 8, 2022View →
CENX
CENTURY ALUMINUM CO
PURCHASEGRANT
Stock grant
4,70635,860Jan 1, 2022Jan 4, 2022View →
CENX
CENTURY ALUMINUM CO
SALE
3,290$16.56$54.5K22,255Dec 31, 2021Jan 4, 2022View →
CENX
CENTURY ALUMINUM CO
SALE
7,077$16.56$117.2K31,154Dec 31, 2021Jan 4, 2022View →
CENX
CENTURY ALUMINUM CO
PURCHASEGRANT
Stock grant
15,97638,231Dec 31, 2021Jan 4, 2022View →
Other insiders · CENX
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About this filer
CIK 0001603836
ROLE
SVP, IT and CAO
PRIMARY
CENX
COMPANIES
1
ACTIVE SINCE
Dec 2021
MARKETPEEL · /INSIDER/0001603836DATA · SEC EDGAR · FORM 4 · CONSOLIDATED TAPE
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