CENTURY ALUMINUM CO·4

Mar 6, 5:58 PM ET

Hoffman Robert F 4

4 · CENTURY ALUMINUM CO · Filed Mar 6, 2026

Research Summary

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Century Aluminum (CENX) SVP Robert F. Hoffman Sells 10,000 Shares

What Happened
Robert F. Hoffman, Senior VP, IT and Chief Accounting Officer of Century Aluminum Co. (CENX), sold 10,000 shares in an open-market/private sale on March 4, 2026. The weighted average sale price was $56.33 per share, producing proceeds of approximately $563,300. This was a sale (not a purchase or grant), which is often routine insider liquidity rather than a signal of company outlook.

Key Details

  • Transaction date: March 4, 2026 (reported on Form 4 filed March 6, 2026).
  • Amount sold: 10,000 shares; weighted average price $56.33; price range $56.15–$56.50 (multiple trades). (See footnote F1.)
  • Total proceeds: ~$563,300.
  • Shares owned after transaction: Not specified in the provided filing.
  • Notable footnotes:
    • F1: Weighted average reflects multiple trades; reporting person can provide per-trade details on request.
    • F2: Holdings may include unvested RSUs granted under the issuer’s long-term incentive plans.
    • F3: Transaction was also reported by the company 401(k) plan trustee on March 4, 2026.
  • Timeliness: Form 4 was filed two business days after the transaction (within the usual 2-business-day reporting window).

Context
Sales by executives are frequently done for diversification, tax or personal-liquidity reasons and do not necessarily indicate a change in company fundamentals. There is no indication in the filing of an option exercise, 10b5‑1 plan, or gift associated with this transaction.

Insider Transaction Report

Form 4
Period: 2026-03-04
Hoffman Robert F
SVP, IT and CAO
Transactions
  • Sale

    Common Stock

    [F1][F2]
    2026-03-04$56.33/sh10,000$563,30067,172 total
Holdings
  • Common Stock

    [F3]
    (indirect: By 401(k))
    14.548
Footnotes (3)
  • [F1]The price reported above reflects the weighted average sale price for the shares which were sold in multiple transactions at prices ranging from $56.15 to $56.50, inclusive. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the specific number of shares and prices at which the transactions were effected.
  • [F2]Includes unvested RSUs granted to the Reporting Person under the Issuer's Long-Term Incentive Plans.
  • [F3]As reported by 401(k) plan trustee on March 4, 2026.
Signature
/s/ Paul Sharobeem, attorney-in-fact for Robert F. Hoffman|2026-03-06

Documents

1 file
  • 4
    wk-form4_1772837922.xmlPrimary

    FORM 4