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ACADIAN ASSET MANAGEMENT LLC

Position in AMTM — Amentum Holdings, Inc.

CIK 916542 Boston, MA

Position in AMTM

as of Mar 31, 2026 · filed May 13, 2026
Position Value
$155,358
-$82,413 QoQ
Shares Held
5,957
-27.3% QoQ
Ownership
0.002%
of shares outstanding
% of Portfolio
0.00%
of 13F equity value
Holder Rank
not a current holder
Holding Since
Dec 2025
2 quarters on record
Voting authority Sole 100.ToString("F0")% Shared 0.ToString("F0")% None 0.ToString("F0")%

Common Shares in AMTM Over Time

Shares Held

Position Value (USD)

Position in Specialty Business Services

Industrials · as of Mar 31, 2026

ACADIAN ASSET MANAGEMENT LLC holds $288,831,887 across 11 Specialty Business Services names. AMTM ranks #7 (0.1% of the industry book) .

# Ticker Company Shares Value (USD) Open
7 AMTM
Amentum Holdings, Inc.
This page
5,957 $155,358

All Filings in AMTM

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2 filing rows on record
Report Date Value (USD) Shares
2026-03-31 $155,358 5,957
2025-12-31 $237,771 8,199