Updated Jul 16, 2026
Arnette Stephen A has filed 1 SEC Form 4 filing across 1 company in the last 90 days.
| Date | Ticker | Company | Code | Shares | Price | Value |
|---|---|---|---|---|---|---|
| 2026-05-07 | AMTM | Amentum Holdings, Inc. | F — Tax withholding / forfeiture | 3.3K | $24.89 | $82K |
| 2026-05-07 | AMTM | Amentum Holdings, Inc. | M — Option exercise | 13.6K | — | |
| 2026-03-04 | AMTM | Amentum Holdings, Inc. | F — Tax withholding / forfeiture | 750 | $30.70 | $23K |
| 2026-03-04 | AMTM | Amentum Holdings, Inc. | M — Option exercise | 2.8K | — |
Arnette Stephen A is a corporate insider — currently tracked as Chief Operating Officer of Amentum Holdings, Inc. (AMTM). InsiderAlpha tracks every SEC Form 4 filing in real time.
1 primary Form 4 filings in the last 90 days, covering 1 company.
All Form 4 filings, transaction values, and 10b5-1 plan flags are listed on this page and updated in real time as new SEC EDGAR filings are processed.
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