Stephen A Arnette

CIK 1919492 · Chief Operating Officer · last filed 2026-05-07

Stephen A Arnette is a Chief Operating Officer who has filed 22 SEC Form 4 insider transactions across 2 companies since 2022. The most recent filing, for AMTMw, was dated May 7, 2026. Current disclosed insider exposure totals $3.5M across reported positions.

"Disclosed insider exposure" sums this person's most-recently-reported share counts across each company they're an insider in, multiplied by the current underlying price. It is not net worth — it misses retail holdings, private investments, real estate, index funds, and any company where the person isn't an SEC-reporting insider. For informational purposes only.

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Disclosed Exposure

$3.54M

Companies

2

Total Filings

22

Lifetime Open-Market Net

$0

Holdings By Company

Latest on-record share count from this person's most recent non-derivative Form 4 transaction in each company. Disclosed exposure = shares × current underlying price.
Symbol Role Shares Price Disclosed Exposure Lifetime OM Net Filings Latest Filed
Amentum Holdings, Inc. (AMTMw) Delisted Chief Operating Officer 109,966 $0 9 2026-05-07
J EXECUTIVE VICE PRESIDENT 27,862 $127.00 $3.54M $0 13 2024-09-20

Recent Filings

22 filings
Form 4 transactions across all companies, newest first.
Filed Symbol Action Net Shares Net $ Link
2026-05-07 Amentum Holdings, Inc. (AMTMw) Delisted Mixed +10,295 -$82.5K EDGAR
2026-03-04 Amentum Holdings, Inc. (AMTMw) Delisted Mixed +2,058 -$23.0K EDGAR
2025-12-19 Amentum Holdings, Inc. (AMTMw) Delisted $0 EDGAR
2025-11-19 Amentum Holdings, Inc. (AMTMw) Delisted Mixed +47,660 -$6.2K EDGAR
2025-11-18 Amentum Holdings, Inc. (AMTMw) Delisted Mixed +14,437 -$102.6K EDGAR
2025-11-10 Amentum Holdings, Inc. (AMTMw) Delisted Mixed +9,608 -$67.4K EDGAR
2025-03-05 Amentum Holdings, Inc. (AMTMw) Delisted Mixed +22,020 -$10.0K EDGAR
2024-11-08 Amentum Holdings, Inc. (AMTMw) Delisted Grant (A) $0 EDGAR
2024-10-04 Amentum Holdings, Inc. (AMTMw) Delisted Grant (A) $0 EDGAR
2024-09-20 J Mixed +3,199 -$663.5K EDGAR
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Codes: P = open-market purchase · S = open-market sale · A = grant/award · M = option exercise · F = tax withholding at vest · G = bona-fide gift · D = disposition to issuer · J = other (see filing footnote). Only P / S codes carry directional signal.