ARNETTE STEPHEN A

PrivateCIK: 1919492
Location

CHANTILLY, VA

ARNETTE STEPHEN A (Chief Operating Officer) received a stock award from AMENTUM HOLDINGS, INC.

Compensation award — not an open‑market transaction. Less informative as a directional signal.

A · 1 award
InsiderARNETTE STEPHEN ACIK 1919492
IssuerAMENTUM HOLDINGS, INC.CIK 2011286
Officer· Chief Operating Officer
Since Mar 2026
+46.48K
Net shares
Net buyer
$6.2K
Total sold
0
Open market trades
0B · 0S
4
Total transactions
47.95K acquired · 1.47K disposed
Non-Derivative Transactions3

Common Stock

Direct
M · Option Exercise

Shares

+1.18K

Price / share

Trade value

% of position

2.6%
11/17/2025
46.06K47.24K

Common Stock

Direct
F · Tax Withholding

Shares

287.00

Price / share

$21.49

Trade value

$6.17K

% of position

0.6%
11/17/2025
47.24K46.96K

Common Stock

Direct
A · Award

Shares

+46.77K

Price / share

Trade value

% of position

99.6%
11/17/2025
46.96K93.72K
Total

Net shares

+47.66K

Net value

-$6.17K

Derivative Transactions1

Restricted Stock Units

Direct
M · Option Exercise
Converts to

Common Stock

1.18K shares

Shares

1.18K

Strike price

Held after

0.00

Exercisable

11/17/2025
ARNETTE STEPHEN A — Insider Transaction (Form 4) Filed Nov 19, 2025 | Finecho