4
Changes in Ownership
Amentum Holdings, Inc. Filed Acc 0001628280-25-052958
Chief Operating Officer gave up 4,651 shares (to pay taxes)
- Chief Operating Officer acquired 19,088 shares (option exercise)
From the SEC's structured data for this filing
Trades in this filing
| Insider | Date | Transaction | Shares | Price | Value | Owned after | D/I |
|---|---|---|---|---|---|---|---|
| Arnette Stephen A Chief Operating Officer | 2025-11-15 | Option exercise | +5,758 | 37,386 | D | ||
| Arnette Stephen A Chief Operating Officer | 2025-11-15 | Shares withheld for taxes | −1,403 | $22.07 | $30,964 | 35,983 | D |
| Arnette Stephen A Chief Operating Officer | 2025-11-16 | Option exercise | +5,053 | 41,036 | D | ||
| Arnette Stephen A Chief Operating Officer | 2025-11-16 | Shares withheld for taxes | −1,231 | $22.07 | $27,168 | 39,805 | D |
| Arnette Stephen A Chief Operating Officer | 2025-11-16 | Option exercise | +3,681 | 43,486 | D | ||
| Arnette Stephen A Chief Operating Officer | 2025-11-16 | Shares withheld for taxes | −897 | $22.07 | $19,797 | 42,589 | D |
| Arnette Stephen A Chief Operating Officer | 2025-11-16 | Option exercise | +4,596 | 47,185 | D | ||
| Arnette Stephen A Chief Operating Officer | 2025-11-16 | Shares withheld for taxes | −1,120 | $22.07 | $24,718 | 46,065 | D |
| Derivatives | |||||||
| Arnette Stephen A Chief Operating Officer | 2025-11-15 | Option exercise · Restricted Stock Units | −5,758 | 11,515 | D | ||
| Arnette Stephen A Chief Operating Officer | 2025-11-16 | Option exercise · Restricted Stock Units | −5,053 | 5,053 | D | ||
| Arnette Stephen A Chief Operating Officer | 2025-11-16 | Option exercise · Restricted Stock Units | −3,681 | 0 | D | ||
| Arnette Stephen A Chief Operating Officer | 2025-11-16 | Option exercise · Restricted Stock Units | −4,596 | 0 | D | ||
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