Skip to main content

Atom Investors LP

Position in AMTM — Amentum Holdings, Inc.

CIK 1738902 AUSTIN, TX

Position in AMTM

as of Jun 30, 2026 · filed Aug 14, 2026
Position Value
$3,325,306
+$2,730,291 QoQ
Shares Held
160,876
+605.1% QoQ
Ownership
0.066%
of shares outstanding
% of Portfolio
0.31%
of 13F equity value
Holder Rank
#93
of 462 holders
Holding Since
Sep 2025
4 quarters on record
Voting authority Sole 100% Shared 0% None 0%

Common Shares in AMTM Over Time

Shares Held

Position Value (USD)

Position in Specialty Business Services

Industrials · as of Jun 30, 2026

Atom Investors LP holds $9,627,992 across 9 Specialty Business Services names. AMTM ranks #1 (34.5% of the industry book) .

# Ticker Company Shares Value (USD) Open
1 AMTM
Amentum Holdings, Inc.
This page
160,876 $3,325,306

All Filings in AMTM

Export CSV
4 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $3,325,306 160,876
2026-03-31 $595,015 22,815
2025-12-31 $1,268,373 43,737
2025-09-30 $3,455,529 144,281