Insider at

04

Insider transactions

05
0 buys (P) 0 sells (S) Net: $0 + 23 non-open-market transactions below last 12 months, based on the transactions shown below

Price change vs current quote, split-adjusted for corporate actions since the filing — not benchmarked, not annualized, not size-weighted

No open-market trades on record; showing all filings.

DateTickerCodeSharesPriceValue Owned afterΔ ownA/Dvs now
Jan. 1, 2011 CENX F 6,311 $15.53 $98,010 34,208 Direct -15.58% Disposed 129.4% (price as of 2026-10-02)
Dec. 31, 2010 CENX F 342 $15.53 $5,311 40,519 Direct -0.84% Disposed 129.4% (price as of 2026-10-02)
June 1, 2010 CENX F 306 · · 40,861 Direct -0.74% Disposed (price as of 2026-10-02)
June 1, 2010 CENX F 306 · · 41,167 Direct -0.74% Disposed (price as of 2026-10-02)
June 1, 2010 CENX F 550 · · 41,473 Direct -1.31% Disposed (price as of 2026-10-02)
March 22, 2010 CENX A 3,730 · · 42,023 Direct +9.74% Acquired (price as of 2026-10-02)
March 8, 2010 CENX F 1,937 $15.03 $29,113 38,293 Direct +5.33% Acquired 137.0% (price as of 2026-10-02)
March 8, 2010 CENX A 4,149 · · 40,230 Direct +11.50% Acquired (price as of 2026-10-02)
June 1, 2009 CENX F 298 · · 36,081 Direct -0.82% Disposed (price as of 2026-10-02)
June 1, 2009 CENX F 537 · · 36,379 Direct -1.45% Disposed (price as of 2026-10-02)
June 1, 2009 CENX A 2,500 · · 36,916 Direct +7.26% Acquired (price as of 2026-10-02)
May 4, 2009 CENX A 14,398 · · 14,398 Direct · Acquired (price as of 2026-10-02)
May 4, 2009 CENX A 16,418 · · 34,416 Direct +91.22% Acquired (price as of 2026-10-02)
March 24, 2009 CENX F 8,518 $1.97 $16,780 17,998 Direct -32.12% Disposed 1708.1% (price as of 2026-10-02)
March 24, 2009 CENX A 18,142 · · 26,516 Direct +216.65% Acquired (price as of 2026-10-02)
June 2, 2008 CENX F 537 $72.89 $39,142 7,444 Direct -6.73% Disposed -51.1% (price as of 2026-10-02)
June 1, 2008 CENX A 2,500 · · 7,981 Direct +45.61% Acquired (price as of 2026-10-02)
April 7, 2008 CENX A 930 · · 8,374 Direct +12.49% Acquired (price as of 2026-10-02)
March 24, 2008 CENX I 84 $61.98 $5,206 27 Indirect -75.68% Disposed -42.5% (price as of 2026-10-02)
March 19, 2008 CENX A 1,527 · · 6,027 Direct +33.93% Acquired (price as of 2026-10-02)
March 19, 2008 CENX F 546 $62.85 $34,316 5,481 Direct -9.06% Disposed -43.3% (price as of 2026-10-02)
July 31, 2007 CENX A 5,000 · · 5,000 Direct · Acquired (price as of 2026-10-02)
June 1, 2007 CENX A 4,500 · · 4,500 Direct · Acquired (price as of 2026-10-02)

P = Open-market purchase · S = Sale · A = Grant/award · M = Option exercise · G = Gift · F = Tax withholding

Insider transactions are not a recommendation; sales are often driven by liquidity or tax reasons.

Derivative holdings (Form 4 Table II) Options, RSUs and convertible securities reported on Form 4 Table II.

06
DateTickerSecurityUnderlying Exercise priceExpirationSharesA/D
May 4, 2009 CENX Employee Stock Option (right to buy) Common Stock (14,398) · May 4, 2019 14,398 Acquired
July 31, 2007 CENX Employee Stock Option (right to buy) Common Stock (5,000) · June 1, 2017 5,000 Acquired

Exercise/conversion price is blank when not applicable (e.g. RSUs).