MacNevin William K. 4

What Happened
William K. MacNevin, Executive Vice President, Operations & Sustainability of SSR Mining (SSRM), disposed of a total of 34,639 shares in March 2026 for aggregate proceeds of about $522,821. On 2026-03-09, 2,617 shares were withheld to satisfy tax withholding on vested restricted stock units at $28.84 per share (cash value $75,474). On 2026-03-13, 32,022 shares were redeemed/disposed to the issuer at $13.97 per share for cash (cash value $447,347) upon completion of the applicable performance period.

Key Details

• Transaction dates and amounts:
  • 2026-03-09: 2,617 shares withheld @ $28.84 = $75,474 (code F — tax withholding)
  • 2026-03-13: 32,022 shares disposed @ $13.97 = $447,347 (code D — disposition to issuer / derivative redemption)
• Total shares disposed: 34,639; total proceeds ≈ $522,821.
• Shares owned after transaction: not specified in the provided excerpt of the Form 4.
• Footnotes:
  • F1: Shares withheld to satisfy tax obligations on vesting RSUs.
  • F2: Withheld shares valued at $28.84 each.
  • F3: Performance units redeemed for cash upon completion of the performance period per plan terms.
• Filing timeliness: Form filed 2026-03-24 reporting transactions dated 2026-03-09 and 2026-03-13 — the report appears late relative to the typical 2-business-day SEC reporting window.

Context
The March 9 action was a routine tax-withholding related to vested RSUs; the March 13 action was a redemption of performance-based units for cash (a derivative disposition), not an open-market sale by the insider. Such withholdings and plan-mandated redemptions are common and do not necessarily signal a change in insider sentiment. The filing’s delayed submission reduces the timeliness of the disclosure for investors.