Amentum Holdings Inc SEC Filings

Amentum Holdings, Inc. (AMTM) reported that its Chief Executive Officer and director received a grant of 155,897 shares of common stock in the form of restricted stock units on 11/17/2025. The grant was recorded at a price of $0 per share, consistent with equity compensation awards, and brought the CEO’s directly held beneficial ownership to 269,440 shares after the transaction.

According to the vesting terms, one-third of these restricted stock units will vest on each of the first, second, and third anniversaries of November 17, 2025. This schedule means the award is structured to align the CEO’s equity compensation with multi‑year company performance and continued service.

Amentum Holdings, Inc. (AMTM) reported a Form 4 transaction for its Chief Technology Officer. On November 17, 2025, the officer acquired 17,817 shares of common stock, reported at a price of $0, increasing direct beneficial ownership to 21,198 shares.

The footnote explains that these represent restricted stock units, with one-third scheduled to vest on each of the first, second, and third anniversaries of November 17, 2025, creating a three-year, time-based vesting schedule.

Amentum Holdings, Inc. reported an equity award to a senior executive. A Form 4 filing shows that the company’s Chief People Officer acquired 22,271 shares of Amentum common stock on 11/17/2025 in the form of restricted stock units at a price of $0, indicating a compensatory grant rather than a market purchase.

The filing states that one-third of these restricted stock units will vest on each of the first, second, and third anniversaries of November 17, 2025, creating a three-year vesting schedule that ties the award to ongoing service. Following the transaction, the executive beneficially owned 22,271 common shares directly.

Amentum Holdings, Inc. (AMTM)November 17, 2025, the CFO acquired 100,220 shares of common stock in the form of restricted stock units at a price of $0 per share, indicating a stock-based compensation award rather than an open-market purchase. Following this grant, the officer beneficially owns 108,675 shares of common stock.

The restricted stock units vest in stages, with one-third of the units scheduled to vest on each of the first, second, and third anniversaries of November 17, 2025. This structure ties the executive’s compensation to the company’s long-term performance and continued service over a three-year period.

Amentum Holdings, Inc. (AMTM) reported an equity grant to its Chief Legal Officer and General Counsel on a Form 4. On November 17, 2025, the officer acquired 22,271 shares of common stock in the form of restricted stock units at a stated price of $0, increasing the amount of securities beneficially owned to 22,271 shares held directly.

According to the filing, these restricted stock units will vest in three equal installments, with one-third vesting on each of the first, second and third anniversaries of November 17, 2025. This transaction reflects routine equity-based compensation for a senior executive rather than an open-market purchase or sale.

Amentum Holdings, Inc. (AMTM) reported an insider equity transaction by its Chief Operating Officer on a Form 4. On November 17, 2025, 1,178 shares of AMTM common stock were distributed upon the vesting of previously granted restricted stock units, and 287 shares were withheld to cover taxes at a price of $21.49 per share. After these transactions, the officer directly owned 46,956 shares of common stock.

On the same date, the officer received a new grant of 46,769 restricted stock units at an exercise price of $0, which will vest in three equal annual installments on the first, second, and third anniversaries of November 17, 2025. Each restricted stock unit represents a contingent right to receive one share of AMTM common stock, aligning the executive’s compensation with future company performance.

Amentum Holdings, Inc. (AMTM) reported insider equity activity by its Executive Chair and director on Form 4 dated 11/17/2025. The insider received 43,396 shares of AMTM common stock upon vesting of previously granted restricted stock units and had 17,077 shares of common stock tendered to cover tax withholding related to that vesting at a price of $21.49 per share. The insider was also granted 111,355 restricted stock units that will vest and be delivered on the first anniversary of November 17, 2025. Following these transactions, the insider beneficially owned 820,476 shares of AMTM common stock directly and 23,550 shares indirectly through a spouse.

Amentum Holdings, Inc. (AMTM) reported insider equity activity by its Chief Operating Officer on a Form 4. On November 15 and 16, 2025, restricted stock units (RSUs) vested, resulting in multiple conversions of RSUs into AMTM common stock, reported with transaction code M. The COO received common shares in amounts including 5,758, 5,053, 3,681, and 4,596 shares as RSUs vested and were distributed as stock. To cover tax withholding upon these vestings, the officer surrendered AMTM common shares in separate transactions with code F, including 1,403, 1,231, and 1,120 shares at a price of $22.07 per share. Following the reported transactions, the COO beneficially owned 46,065 shares of AMTM common stock directly and continued to hold RSUs with contingent rights to receive additional shares.

Amentum Holdings (AMTM) reported an insider equity event by its Chief Financial Officer on 11/06/2025. The CFO received 12,097 shares of common stock upon the vesting of restricted stock units, then disposed of 3,642 shares to cover taxes at $21.79 per share.

Following these transactions, the officer directly holds 8,455 shares of AMTM common stock. The filing also notes 24,194 restricted stock units beneficially owned after the reported activity, each representing the right to receive one share. The vested restricted stock units vested on November 6, 2025.