AMTM insider transaction filings
Amentum Holdings, Inc. — 50 most recent Form 4 filings from SEC EDGAR, normalized by FilingPulse. Latest filing: 2026-05-07. Screen AMTM transaction legs live →
| Filed | Form | Insider | Reported transactions | Source |
|---|---|---|---|---|
| 2026-05-07 | 4 | Mullen Sean Thomas — Chief Growth Officer | Option exercise (M): 9,072 · Tax withholding (F): 2,762 @ $24.89 · Option exercise (M): 9,072 (derivative) @ $0 | EDGAR |
| 2026-05-07 | 4 | Bruning Jill L — Chief Technology Officer | Option exercise (M): 9,072 · Tax withholding (F): 2,731 @ $24.89 · Option exercise (M): 9,072 (derivative) @ $0 | EDGAR |
| 2026-05-07 | 4 | Arnette Stephen A — Chief Operating Officer | Option exercise (M): 13,609 · Tax withholding (F): 3,314 @ $24.89 · Option exercise (M): 13,609 (derivative) @ $0 | EDGAR |
| 2026-05-07 | 4 | Johnson Travis Barton — Chief Financial Officer | Option exercise (M): 13,609 · Tax withholding (F): 4,097 @ $24.89 · Option exercise (M): 13,609 (derivative) @ $0 | EDGAR |
| 2026-05-07 | 4 | Heller John E. — Chief Executive Officer, Director | Option exercise (M): 18,145 · Tax withholding (F): 8,184 @ $24.89 · Option exercise (M): 18,145 (derivative) @ $0 | EDGAR |
| 2026-03-05 | 4 | Bruning Jill L — Chief Technology Officer | Gift (G): 30,000 @ $0 | EDGAR |
| 2026-03-04 | 4 | Arnette Stephen A — Chief Operating Officer | Option exercise (M): 2,808 · Tax withholding (F): 750 @ $30.70 · Option exercise (M): 2,808 (derivative) @ $0 | EDGAR |
| 2026-02-18 | 4 | St. Mary Michele T — Chief Legal Officer & GC | Option exercise (M): 7,080 · Tax withholding (F): 2,308 @ $30.05 · Option exercise (M): 7,080 (derivative) @ $0 | EDGAR |
| 2026-02-10 | 4 | Brooks Vincent K — Director | Option exercise (M): 11,564 · Grant/award (A): 5,062 @ $0 · Option exercise (M): 11,564 (derivative) @ $0 | EDGAR |
| 2026-02-10 | 4 | Loughran Barbara — Director | Grant/award (A): 5,062 @ $0 | EDGAR |
| 2026-02-10 | 4 | Vollmer John C. — Director | Option exercise (M): 11,564 · Grant/award (A): 5,062 @ $0 · Option exercise (M): 11,564 (derivative) @ $0 | EDGAR |
| 2026-02-10 | 4 | IRELAND SUSAN LESLIE — Director | Grant/award (A): 5,062 @ $0 | EDGAR |
| 2026-02-10 | 4 | Rowland Sandra E. — Director | Option exercise (M): 11,564 · Grant/award (A): 5,062 @ $0 · Option exercise (M): 11,564 (derivative) @ $0 | EDGAR |
| 2026-02-10 | 4 | Thompson Christopher M.T. — Director | Grant/award (A): 5,062 @ $0 | EDGAR |
| 2026-02-10 | 4 | EBERHART RALPH E — Director | Option exercise (M): 11,564 · Grant/award (A): 5,062 @ $0 · Option exercise (M): 11,564 (derivative) @ $0 | EDGAR |
| 2026-02-10 | 4/A | DEMETRIOU STEVEN J. — Executive Chair, Director | Holdings only — no transactions reported | EDGAR |
| 2026-01-29 | 4 | Heller John E. — Chief Executive Officer, Director | Option exercise (M): 51,979 · Tax withholding (F): 19,768 @ $35.71 · Option exercise (M): 51,979 (derivative) @ $0 | EDGAR |
| 2025-12-19 | 4 | Mullen Sean Thomas — Chief Growth Officer | Option exercise (M): 9,298 · Tax withholding (F): 4,194 @ $28.67 · Option exercise (M): 9,298 (derivative) @ $0 | EDGAR |
| 2025-12-19 | 4/A | Bruning Jill L — Chief Technology Officer | Holdings only — no transactions reported | EDGAR |
| 2025-12-19 | 4/A | Arnette Stephen A — Chief Operating Officer | Holdings only — no transactions reported | EDGAR |
| 2025-12-19 | 4/A | Heller John E. — Chief Executive Officer, Director | Holdings only — no transactions reported | EDGAR |
| 2025-12-09 | 4 | Burton Darren — Chief People Officer | Option exercise (M): 2,721 · Tax withholding (F): 1,392 @ $28.88 · Option exercise (M): 2,721 (derivative) @ $0 | EDGAR |
| 2025-11-19 | 4 | Mullen Sean Thomas — Chief Growth Officer | Grant/award (A): 17,817 @ $0 | EDGAR |
| 2025-11-19 | 4 | Bruning Jill L — Chief Technology Officer | Grant/award (A): 17,817 @ $0 | EDGAR |
| 2025-11-19 | 4 | Burton Darren — Chief People Officer | Grant/award (A): 22,271 @ $0 | EDGAR |
| 2025-11-19 | 4 | St. Mary Michele T — Chief Legal Officer & GC | Grant/award (A): 22,271 @ $0 | EDGAR |
| 2025-11-19 | 4 | Arnette Stephen A — Chief Operating Officer | Option exercise (M): 1,178 · Tax withholding (F): 287 @ $21.49 · Grant/award (A): 46,769 @ $0 · Option exercise (M): 1,178 (derivative) @ $0 | EDGAR |
| 2025-11-19 | 4 | Johnson Travis Barton — Chief Financial Officer | Grant/award (A): 100,220 @ $0 | EDGAR |
| 2025-11-19 | 4 | Heller John E. — Chief Executive Officer, Director | Grant/award (A): 155,897 @ $0 | EDGAR |
| 2025-11-19 | 4 | DEMETRIOU STEVEN J. — Executive Chair, Director | Option exercise (M): 43,396 · Tax withholding (F): 17,077 @ $21.49 · Grant/award (A): 111,355 @ $0 · Option exercise (M): 43,396 (derivative) @ $0 | EDGAR |
| 2025-11-18 | 4 | Arnette Stephen A — Chief Operating Officer | Option exercise (M): 5,758 · Tax withholding (F): 1,403 @ $22.07 · Option exercise (M): 5,053 · Tax withholding (F): 1,231 @ $22.07 · Option exercise (M): 3,681 · Tax withholding (F): 897 @ $22.07 · +6 more | EDGAR |
| 2025-11-10 | 4 | Bruning Jill L — Chief Technology Officer | Option exercise (M): 4,838 · Tax withholding (F): 1,457 @ $21.79 · Option exercise (M): 4,838 (derivative) @ $0 | EDGAR |
| 2025-11-10 | 4 | Mullen Sean Thomas — Chief Growth Officer | Option exercise (M): 4,838 · Tax withholding (F): 1,621 @ $21.79 · Option exercise (M): 4,838 (derivative) @ $0 | EDGAR |
| 2025-11-10 | 4 | Arnette Stephen A — Chief Operating Officer | Option exercise (M): 12,701 · Tax withholding (F): 3,093 @ $21.79 · Option exercise (M): 12,701 (derivative) @ $0 | EDGAR |
| 2025-11-10 | 4 | Johnson Travis Barton — Chief Financial Officer | Option exercise (M): 12,097 · Tax withholding (F): 3,642 @ $21.79 · Option exercise (M): 12,097 (derivative) @ $0 | EDGAR |
| 2025-11-10 | 4 | Heller John E. — Chief Executive Officer, Director | Option exercise (M): 39,617 · Tax withholding (F): 17,868 @ $21.79 · Option exercise (M): 39,617 (derivative) @ $0 | EDGAR |
| 2025-11-10 | 4 | DEMETRIOU STEVEN J. — Executive Chair, Director | Option exercise (M): 90,727 · Tax withholding (F): 28,818 @ $21.79 · Option exercise (M): 90,727 (derivative) @ $0 | EDGAR |
| 2025-05-12 | 4 | Amentum Joint Venture GP LLC — Director Amentum Joint Venture LP — Director | Other (J): 2,433,022 @ $0 | EDGAR |
| 2025-05-12 | 4 | Lindsay Goldberg Employee Co-Inv. IV L.P. — 10% owner LG Co-Inv. A L.P. — 10% owner Lindsay Goldberg V L.P. — 10% owner Lindsay Goldberg Maverick Co-Inv. L.P. — 10% owner LG Amentum Holdings GP LLC — 10% owner LG Amentum Holdings LP — 10% owner | Other (J): 1,132,839 | EDGAR |
| 2025-05-12 | 4 | Goldberg 2014 LLC — 10% owner Goldberg 2020 LLC — 10% owner LG GP Holding IV LLC — 10% owner LG GP Holding V LLC — 10% owner Lindsay Goldberg GP IV LLC — 10% owner Lindsay Goldberg GP V LLC — 10% owner Lindsay Goldberg IV L.P. — 10% owner Lindsay Goldberg IV - A L.P. — 10% owner Lindsay Goldberg IV - PCF L.P. — 10% owner Lindsay Goldberg Co-Inv. IV L.P. — 10% owner | Other (J): 1,132,839 | EDGAR |
| 2025-05-12 | 4 | GOLDBERG ALAN E — Director, 10% owner | Other (J): 1,132,839 | EDGAR |
| 2025-04-10 | 4 | Brooks Vincent K — Director | Grant/award (A): 11,564 (derivative) @ $0 | EDGAR |
| 2025-04-10 | 4 | Loughran Barbara — Director | Grant/award (A): 11,564 (derivative) @ $0 | EDGAR |
| 2025-04-10 | 4 | Vollmer John C. — Director | Grant/award (A): 11,564 (derivative) @ $0 | EDGAR |
| 2025-04-10 | 4 | IRELAND SUSAN LESLIE — Director | Grant/award (A): 11,564 (derivative) @ $0 | EDGAR |
| 2025-04-10 | 4 | Rowland Sandra E. — Director | Grant/award (A): 11,564 (derivative) @ $0 | EDGAR |
| 2025-04-10 | 4 | Thompson Christopher M.T. — Director | Grant/award (A): 11,564 (derivative) @ $0 | EDGAR |
| 2025-04-10 | 4 | EBERHART RALPH E — Director | Grant/award (A): 11,564 (derivative) @ $0 | EDGAR |
| 2025-04-08 | 4 | Amentum Joint Venture GP LLC — Director Amentum Joint Venture LP — Director | Grant/award (A): 2,433,022 @ $0 | EDGAR |
| 2025-03-19 | 4 | St. Mary Michele T — Chief Legal Officer & GC | Grant/award (A): 21,242 (derivative) @ $0 | EDGAR |
Recent 8-K events — Amentum Holdings, Inc.
| Filed | Form | Items reported | Source |
|---|---|---|---|
| 2026-08-10 | 8-K | 2.02 — Results of Operations and Financial Condition 9.01 — Financial Statements and Exhibits | EDGAR |
| 2026-05-11 | 8-K | 2.02 — Results of Operations and Financial Condition 9.01 — Financial Statements and Exhibits | EDGAR |
| 2026-04-28 | 8-K | 1.01 — Entry into a Material Definitive Agreement | EDGAR |
| 2026-02-10 | 8-K | 5.07 — Submission of Matters to a Vote of Security Holders | EDGAR |
| 2026-02-09 | 8-K | 2.02 — Results of Operations and Financial Condition 9.01 — Financial Statements and Exhibits | EDGAR |
| 2025-11-24 | 8-K | 2.02 — Results of Operations and Financial Condition 9.01 — Financial Statements and Exhibits | EDGAR |
| 2025-08-05 | 8-K | 2.02 — Results of Operations and Financial Condition 9.01 — Financial Statements and Exhibits | EDGAR |
| 2025-05-06 | 8-K | 2.02 — Results of Operations and Financial Condition 9.01 — Financial Statements and Exhibits | EDGAR |
| 2025-03-07 | 8-K | 8.01 — Other Events 9.01 — Financial Statements and Exhibits | EDGAR |
| 2025-03-07 | 8-K | 9.01 — Financial Statements and Exhibits | EDGAR |
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