Reported relationships
Latest disclosed role at each company.
| Company | Last reported as | Report date | Published |
|---|---|---|---|
| Amentum Holdings, Inc.AMTM · Entity 3920 | Chief Legal Officer & GC | February 17, 2026 | February 18, 2026 |
Disclosed balances
About these balances
Latest available filing per company, not a reconstructed current portfolio. Matching sequences show the last reported balance with all source rows expandable; grouping alone does not establish account ownership. Do not add unresolved positions together. Filings may omit unchanged positions, and amendments may correct only part of an older disclosure. Jointly reported shares are not necessarily this owner's personal holdings.
Amentum Holdings, Inc.
Report date February 17, 2026 · Filed February 18, 2026
| Security / award | Ownership account | Disclosed shares / units | Disclosure context |
|---|---|---|---|
| Common StockSEC Table I · non-derivative | Direct | 27,043 |
Ending reported balance
After 2026-02-17 transaction · row 2
2 source rows · reconciled sequenceRow 1 · 2026-02-17 · Exercise / conversion · Acquired 7,080 · Balance 29,351 F1: Represents distribution of AMTM common stock upon vesting of restricted stock units. Row 2 · 2026-02-17 · Tax withholding · Disposed 2,308 · Balance 27,043 F2: Represents number of shares of AMTM common stock tendered for tax withholding upon vesting of restricted stock units. |
| Restricted Stock UnitsSEC Table II · derivative / convertible security | Direct | 14,162 |
Reported balance
After 2026-02-17 transaction · row 3
Instrument identity requires review; Table II rows are not merged.
1 source rowRow 3 · 2026-02-17 · Exercise / conversion · Disposed 7,080 · Balance 14,162 F3: Each restricted stock unit represents a contingent right to receive one share of AMTM common stock. F1: Represents distribution of AMTM common stock upon vesting of restricted stock units. F4: The restricted stock units awarded vested on February 17, 2026. |
Filing footnotes · ownership attribution and instrument terms
F1: Represents distribution of AMTM common stock upon vesting of restricted stock units.
F2: Represents number of shares of AMTM common stock tendered for tax withholding upon vesting of restricted stock units.
F3: Each restricted stock unit represents a contingent right to receive one share of AMTM common stock.
F4: The restricted stock units awarded vested on February 17, 2026.
Transaction history
JSON APIPurchases/sales include open-market and private transactions. Plan disclosure applies to the filing; individual rows may differ. “Not disclosed” is not “unplanned.”
The cutoff filters transaction history only. Company summaries and owner relationships show the latest available disclosures. Parser corrections can improve historical records.
| Transaction date | Company | Activity / security | Shares / units | Reported price | Reported value | Details |
|---|---|---|---|---|---|---|
| February 17, 2026 Filed Feb 18, 2026 17:30 UTC | Amentum Holdings, Inc. AMTM · Entity 3920 | Exercise / conversionRestricted Stock Units · Derivative | 7,080 | $0.00 | $0.00 |
DisclosureSEC source: 0001628280-26-009269 · wk-form4_1771453809.xml · derivative · entry 3 St. Mary Michele T · CIK 0002057553 · Chief Legal Officer & GC 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 14,162 Underlying: Common Stock · 7,080 shares Expires not disclosed Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F3 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of AMTM common stock. F1 · kind: Represents distribution of AMTM common stock upon vesting of restricted stock units. F4 · derivative.exercise_date: The restricted stock units awarded vested on February 17, 2026. F4 · derivative.expiration_date: The restricted stock units awarded vested on February 17, 2026. Read SEC document |
| February 17, 2026 Filed Feb 18, 2026 17:30 UTC | Amentum Holdings, Inc. AMTM · Entity 3920 | Tax withholdingCommon Stock | 2,308 | $30.05 | $69,355.40 |
DisclosureSEC source: 0001628280-26-009269 · wk-form4_1771453809.xml · nonDerivative · entry 2 St. Mary Michele T · CIK 0002057553 · Chief Legal Officer & GC 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 27,043 F2 · shares: Represents number of shares of AMTM common stock tendered for tax withholding upon vesting of restricted stock units. Read SEC document |
| February 17, 2026 Filed Feb 18, 2026 17:30 UTC | Amentum Holdings, Inc. AMTM · Entity 3920 | Exercise / conversionCommon Stock | 7,080 | Not disclosed | Not disclosed |
DisclosureSEC source: 0001628280-26-009269 · wk-form4_1771453809.xml · nonDerivative · entry 1 St. Mary Michele T · CIK 0002057553 · Chief Legal Officer & GC 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 29,351 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · price: Represents distribution of AMTM common stock upon vesting of restricted stock units. Read SEC document |
| November 17, 2025 Filed Nov 19, 2025 17:40 UTC | Amentum Holdings, Inc. AMTM · Entity 3920 | GrantCommon Stock | 22,271 | $0.00 | $0.00 |
DisclosureSEC source: 0001628280-25-053272 · wk-form4_1763592004.xml · nonDerivative · entry 1 St. Mary Michele T · CIK 0002057553 · Chief Legal Officer & GC 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 22,271 F1 · shares: One-third of the restricted stock units shall vest on each of the first, second and third anniversaries of November 17, 2025. Read SEC document |
| March 17, 2025 Filed Mar 19, 2025 16:37 UTC | Amentum Holdings, Inc. AMTM · Entity 3920 | GrantRestricted Stock Units · Derivative | 21,242 | $0.00 | $0.00 |
DisclosureSEC source: 0002011286-25-000096 · wk-form4_1742416634.xml · derivative · entry 1 St. Mary Michele T · CIK 0002057553 · Chief Legal Officer & GC 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 21,242 Underlying: Common Stock · 21,242 shares Expires not disclosed F1 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of AMTM common stock. F2 · derivative.exercise_date: One-third of the restricted stock units shall vest on each of the first, second and third anniversaries of February 17, 2025. F2 · derivative.expiration_date: One-third of the restricted stock units shall vest on each of the first, second and third anniversaries of February 17, 2025. Read SEC document |
Value uses the disclosed total when available, otherwise shares × reported transaction price. It is not an estimate of exercise cash cost or investment performance.