SD
Insider
Steven J. Demetriou
Executive ChairSteven J. Demetriou (Executive Chair) filed 1 Form 4 report in the past 24 months (1 purchase, 0 sales), most often in AMTM. Across 1 priced purchase filing, the average 21-session return was -13.3% from execution and -5.6% from disclosure (delay-adjusted; derived). The largest single filing was $2.1M of AMTM (100,000 sh × $20.81, as filed), executed Feb 12 2025. Data as of Nov 8 2026.
Add to watchlistReturn, ttmiAverage return per filing, trailing twelve months
-13.3%
avg across 1 priced filings
Delay-adjustediThe same average, entered at disclosure dates
-5.6%
same 1 filings, from disclosure
Filings, ttm
1
1 buys · 0 sells
Median delay
2d
execution → disclosure
Volume, ttmiDollar value disclosed in the trailing twelve months
$2.1M
shares × price, as filed
Last traded
Feb 12 2025
Filed Feb 14 2025
Volume by month
Buys $2.1M
Sells $0
Shares × price, as filed · by filing month · past 24 months
Most traded names
AMTM
AMTM
1 buy · 0 sells
1 filing
Recent filings
AMTMPURCHASE
Amentum Holdings, Inc.
View filing →
$2.1M100,000 sh × $20.81
Exec Feb 12 2025
Filed Feb 14 2025 · 5:30 PM ET