Amentum Holdings, Inc. Chief Financial Officer Travis Barton filed a Form 4 on November 10, 2026, reporting restricted stock unit vesting and related share withholding transactions dated November 6, 2026.

Key Highlights

  • RSU vesting: 12,097 shares of common stock were acquired by Barton on November 6, 2026, upon vesting of restricted stock units (transaction code M).
  • Tax withholding disposal: 5,064 shares were disposed of at $21.25 per share to cover tax withholding obligations upon vesting.
  • Remaining beneficial ownership: Following the transactions, Barton directly holds 125,220 shares of common stock.
  • RSU structure: According to the filing, one-third of the restricted stock units vest on each of the first, second, and third anniversaries of the grant date.
  • Derivative position: 12,097 restricted stock units remain beneficially owned directly following the reported transactions.

Amentum CFO Barton Reports RSU Vesting and Tax Withholding on November 6, 2026

Travis Barton, identified in the filing as Chief Financial Officer of Amentum Holdings, Inc. (NYSE:AMTM), reported two transactions in common stock on November 6, 2026. The first was an acquisition of 12,097 shares under transaction code M, which the filing states "represents distribution of AMTM common stock upon vesting of restricted stock units." Prior to these transactions, Barton's beneficial ownership stood at 130,284 shares directly held.

The second transaction involved the disposal of 5,064 shares at a price of $21.25 per share under transaction code F. The filing states this "represents number of shares of AMTM common stock tendered for tax withholding upon vesting of restricted stock units." Following both transactions, Barton's direct beneficial ownership in common stock totaled 125,220 shares.

In the derivative securities table, the filing records 12,097 restricted stock units disposed via code M at a price of $0, reducing a derivative position. The filing notes that "each restricted stock unit represents a contingent right to receive one share of AMTM common stock," and that the units vest in equal one-third installments on the first, second, and third anniversaries of the grant date. After the reported transactions, 12,097 restricted stock units remain directly held. The Form 4 was signed by Indira Lall as attorney-in-fact on November 10, 2026.

What Was Disclosed

Amentum Holdings CFO Travis Barton disclosed the vesting of 12,097 restricted stock units on November 6, 2026, the withholding of 5,064 shares at $21.25 for taxes, and a resulting direct beneficial ownership of 125,220 common shares.