Johnson Travis Barton 4

What Happened
Johnson Travis Barton, Chief Financial Officer of Amentum Holdings, had 13,609 restricted stock units (RSUs) vest and convert into 13,609 shares of AMTM common stock on May 6, 2026. To satisfy tax withholding, 4,097 of those shares were tendered at a reported withholding value of $24.89 per share, totaling $101,974. The net shares delivered to Barton were 9,512 (13,609 vested − 4,097 withheld). This was an award/vesting event (not an open‑market purchase or sale).

Key Details

• Transaction date: 2026-05-06 (reported on Form 4 filed 2026-05-07) — filing appears timely.
• Vesting/conversion: 13,609 RSUs converted to 13,609 common shares (derivative conversion).
• Tax withholding: 4,097 shares tendered at $24.89/share for $101,974 (disposition for tax payment).
• Net shares received: 9,512 shares delivered to the insider after withholding.
• Shares owned after transaction: Not disclosed in this filing.
• Footnotes: F1 = distribution on RSU vesting; F2 = shares tendered for tax withholding; F3 = each RSU = one share; F4 = vesting schedule (half at 18 months and three years from grant).
• Transaction codes explained: M = conversion/exercise of derivative (RSU → shares); F = shares surrendered for tax withholding.

Context: This was a routine RSU vesting and tax-withholding transaction, not an open-market sale or buy. Tendering shares to cover taxes is common and does not necessarily indicate insider sentiment about the stock.