Form 4: Amentum CEO Heller Reports RSU Vesting, Tax Withholding
Insider Transaction Report
Amentum Holdings, Inc. CEO John E. Heller reported the vesting of restricted stock units and subsequent sale of shares for tax obligations.
Summary
- John E. Heller, CEO and Director of Amentum Holdings, Inc., reported transactions related to his beneficial ownership.
- On January 28, 2026, 51,979 shares of Amentum common stock were acquired upon the vesting of restricted stock units.
- Concurrently, 19,768 shares of Amentum common stock were disposed of at a price of $35.71 per share to cover tax withholding obligations related to the RSU vesting.
- Following these transactions, Heller's direct beneficial ownership of common stock stands at 366,058 shares.
- The restricted stock units, which each represent a contingent right to receive one share of common stock, vested on January 28, 2026.
Sentiment
Score: 5
Explanation: StockSavvy.ai views this as a neutral filing, as it reports standard executive compensation events (RSU vesting and tax withholding) without indicating any significant positive or negative operational or financial developments for the company.
Positives
- Vesting of restricted stock units indicates the fulfillment of performance or time-based compensation criteria for the CEO.
Negatives
- The sale of 19,768 shares for tax withholding purposes reduces the CEO's direct ownership, though this is a common practice for RSU vesting.
Industry Context
StockSavvy.ai notes that routine insider transactions, such as the vesting of restricted stock units and subsequent tax-related sales, are common occurrences for executives in publicly traded companies within the government services and defense contracting industry, where Amentum operates. These filings provide transparency into executive compensation and ownership changes but typically do not signal significant strategic shifts.
Corporate Governance
| Change Type | Description | Effective Date | Impact Assessment |
|---|---|---|---|
| Power of Attorney Grant | John E. Heller granted a Power of Attorney to Michele T. St. Mary, Indira Lall, and Mark Esposito to execute SEC filings (Schedule 13D, Forms 3, 4, 5, 144) related to his ownership of Amentum Holdings, Inc. common stock. | 01/22/2026 | Enhances administrative efficiency for insider reporting requirements for John E. Heller. |
Stakeholder Impact
- Shareholders: Provides transparency regarding executive stock ownership and compensation practices.
- Employees: Reflects standard executive compensation structures, which may indirectly influence employee perception of company compensation policies.
Key Dates
| Date | Description |
|---|---|
| 01/22/2026 | Date John E. Heller signed the Power of Attorney. |
| 01/28/2026 | Date of earliest transaction, representing the vesting of restricted stock units and related stock acquisition/disposition. |
| 01/29/2026 | Date the Form 4 was signed by Indira Lall, attorney-in-fact. |
Recommendation
holdThis Form 4 filing details routine executive compensation events (RSU vesting and tax withholding) and does not provide new information that would fundamentally alter the investment thesis for Amentum Holdings, Inc. It is a standard disclosure and does not warrant a change in investment posture based solely on its content.
Keywords
Amentum Holdings, AMTM, John E. Heller, CEO, Director, SEC Form 4, Insider Transaction, Restricted Stock Units, RSU Vesting, Stock Ownership, Tax Withholding
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