CENX
insider transactionsCENTURY ALUMINUM CO — buys & sells by directors, officers and 10% owners A shareholder owning more than 10% of the company. Must report trades, but usually a weaker signal than an officer or director. (SEC Form 4).
Net shares · 90d
-21.7K
0 buy · 21.7K sell
Net value · 90d
-$4.3M
$0 in · $4.3M out
Sentiment · 90d
Net selling
0% buying · 100% selling
Open-market trades · 90d
7
0 buy · 21.7K sell
Net buy / sell volume
Not enough data to chart yet.
Tap or hover the chart for daily net volume. Green = net buying, red = net selling.
All transactions
-
Grant·A
Director
$0
2.2K sh
Own +2%
-
Other·F
Director
$35.6K
652 sh · $54.55
Own -1%
-
Grant·A
Director
$0
2.2K sh
Own +2%
-
Grant·A
Director
$0
2.2K sh
Own +7%
-
Grant·A
Director
$0
2.2K sh
Own +5%
-
Grant·A
Director
$0
2.2K sh
Own +1%
-
Sell·S
VP & Pres. - Power Systems
$1.3M
1.8K sh · $697.29
Own -13%
-
Sell·S
VP & Pres. - Power Systems
$805.1K
1.2K sh · $695.21
Own -8%
-
Sell·S
VP & Pres. - Power Systems
$652.5K
940 sh · $694.13
Own -6%
-
Sell·S
VP & Pres. - Power Systems
$405.9K
583 sh · $696.26
Own -4%
-
Sell·S
VP & Pres. - Power Systems
$335.2K
480 sh · $698.38
Own -3%
-
Sell·S
VP & Pres. - Power Systems
$28.0K
40 sh · $699.10
Own -0%
-
Sell·S
EVP, CFO
$845.5K
16.7K sh · $50.51
Own -21%
| Date▾ | Insider | Type | Shares | Value |
|---|---|---|---|---|
| Jun 15, 2026 | Errol Glasser | Grant A | 2.2K | $0 |
| Jun 15, 2026 | Andrew G Michelmore | Other F | 652 | $35.6K |
| Jun 15, 2026 | Andrew G Michelmore | Grant A | 2.2K | $0 |
| Jun 15, 2026 | Tamla A Olivier | Grant A | 2.2K | $0 |
| Jun 15, 2026 | Jennifer Mary Bush | Grant A | 2.2K | $0 |
| Jun 15, 2026 | Jarl Berntzen | Grant A | 2.2K | $0 |
| May 12, 2026 | Jennifer Mary Bush | Sell S | 1.8K | $1.3M |
| May 12, 2026 | Jennifer Mary Bush | Sell S | 1.2K | $805.1K |
| May 12, 2026 | Jennifer Mary Bush | Sell S | 940 | $652.5K |
| May 12, 2026 | Jennifer Mary Bush | Sell S | 583 | $405.9K |
| May 12, 2026 | Jennifer Mary Bush | Sell S | 480 | $335.2K |
| May 12, 2026 | Jennifer Mary Bush | Sell S | 40 | $28.0K |
| Mar 25, 2026 | Peter A Trpkovski KEY | Sell S | 16.7K | $845.5K |
About CENX insider trading
This page tracks insider transactions for CENTURY ALUMINUM CO (CENX) reported to the U.S. Securities and Exchange Commission on Form 4. Corporate insiders — directors, executive officers and beneficial owners of more than 10% of the stock — must disclose their trades within two business days. Open-market purchases (code P) and sales (code S) made at the insider's discretion are the most-watched opportunistic signals, while awards (A), option exercises (M) and tax-withholding (F) reflect compensation rather than conviction. Trades marked 10b5-1 were made under a pre-arranged plan and are considered routine. A cluster buy — several insiders buying within a short window — is historically a stronger bullish indicator than any single trade.