Amentum Holdings, Inc. AMTM
We take great care to ensure that the data presented and summarized in this overview for Amentum Holdings, Inc. is accurate and up-to-date, based on a comprehensive analysis of 13F filing forms for institutional ownership and form 4 filings for insider transactions. Please note that this data may differ from other sources and should not be relied upon as the sole basis for investment decisions.
Latest Institutional Activity in AMTM
Top Purchases
Top Sells
About AMTM
Insider Transactions at AMTM
Insider Transaction List
View all| Date | Insider | Transaction | Ownership Type | Shares Traded | Value / Price |
|---|---|---|---|---|---|
|
Apr 07
2025
|
Amentum Joint Venture Gp LLC |
BUY
Grant, award, or other acquisition
|
Indirect |
2,433,022
+50.0%
|
-
|
|
Mar 13
2025
|
Jacobs Solutions Inc. |
SELL
Other acquisition or disposition
|
Indirect |
19,464,174
-100.0%
|
-
|
|
Mar 05
2025
|
Ralph E Eberhart Director |
BUY
Exercise of conversion of derivative security
|
Direct |
3,447
+10.34%
|
-
|
|
Mar 05
2025
|
Sandra E. Rowland Director |
BUY
Exercise of conversion of derivative security
|
Direct |
3,447
+50.0%
|
-
|
|
Mar 05
2025
|
Vincent K Brooks Director |
BUY
Exercise of conversion of derivative security
|
Direct |
3,447
+24.87%
|
-
|
|
Mar 05
2025
|
John C. Vollmer Director |
BUY
Exercise of conversion of derivative security
|
Direct |
3,447
+0.87%
|
-
|
|
Mar 05
2025
|
Susan Leslie Ireland Director |
BUY
Exercise of conversion of derivative security
|
Direct |
3,447
+50.0%
|
-
|
|
Mar 04
2025
|
Stephen A Arnette Chief Operating Officer |
SELL
Payment of exercise price or tax liability
|
Direct |
152
-0.69%
|
$2,736
$18.71 P/Share
|
|
Mar 04
2025
|
Stephen A Arnette Chief Operating Officer |
BUY
Exercise of conversion of derivative security
|
Direct |
521
+2.3%
|
-
|
|
Mar 03
2025
|
Stephen A Arnette Chief Operating Officer |
SELL
Payment of exercise price or tax liability
|
Direct |
365
-1.66%
|
$6,935
$19.64 P/Share
|
|
Mar 03
2025
|
Stephen A Arnette Chief Operating Officer |
BUY
Exercise of conversion of derivative security
|
Direct |
1,230
+5.29%
|
-
|
|
Feb 18
2025
|
Barbara Loughran Director |
BUY
Open market or private purchase
|
Direct |
4,600
+50.0%
|
$96,600
$21.23 P/Share
|
|
Feb 12
2025
|
Steven J. Demetriou Executive Chair |
BUY
Open market or private purchase
|
Direct |
100,000
+13.87%
|
$2,000,000
$20.81 P/Share
|
|
Dec 17
2024
|
John C. Vollmer Director |
BUY
Other acquisition or disposition
|
Direct |
391,341
+50.0%
|
-
|
|
Dec 17
2024
|
John E. Heller Chief Executive Officer |
BUY
Other acquisition or disposition
|
Direct |
91,794
+50.0%
|
-
|
|
Dec 17
2024
|
Alan E Goldberg Director |
BUY
Other acquisition or disposition
|
Indirect |
43,893,904
+50.0%
|
-
|
|
Dec 17
2024
|
Amentum Joint Venture Gp LLC |
SELL
Other acquisition or disposition
|
Indirect |
90,021,804
-100.0%
|
-
|
|
Sep 23
2024
|
Jacobs Solutions Inc. |
SELL
Other acquisition or disposition
|
Indirect |
124,084,108
-80.95%
|
-
|
|
Sep 18
2024
|
Ralph E Eberhart Director |
BUY
Other acquisition or disposition
|
Direct |
26,439
+50.0%
|
-
|
|
Sep 18
2024
|
Vincent K Brooks Director |
BUY
Other acquisition or disposition
|
Direct |
6,966
+50.0%
|
-
|
Last 12 Months Summary
Buy / Acquisition
47.5M
Shares
From
16
Insiders
| Other acquisition or disposition | 45M shares |
|---|---|
| Open market or private purchase | 105K shares |
| Exercise of conversion of derivative security | 19K shares |
| Grant, award, or other acquisition | 2.43M shares |
Sell / Disposition
234M
Shares
From
3
Insiders
| Payment of exercise price or tax liability | 517 shares |
|---|---|
| Other acquisition or disposition | 234M shares |