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FMR LLC

Position in AMTM — Amentum Holdings, Inc.

CIK 315066 BOSTON, MA

Position in AMTM

as of Mar 31, 2026 · filed May 15, 2026
Position Value
$145,484,305
-$49,027,511 QoQ
Shares Held
5,578,386
-16.8% QoQ
Ownership
2.28%
of shares outstanding
% of Portfolio
0.01%
of 13F equity value
Holder Rank
not a current holder
Holding Since
Sep 2024
7 quarters on record
Voting authority Sole 98.59570492253495.ToString("F0")% Shared 0.ToString("F0")% None 1.4042950774650589.ToString("F0")%

Common Shares in AMTM Over Time

Shares Held

Position Value (USD)

Position in Specialty Business Services

Industrials · as of Mar 31, 2026

FMR LLC holds $3,818,210,998 across 30 Specialty Business Services names. AMTM ranks #8 (3.8% of the industry book) .

# Ticker Company Shares Value (USD) Open
8 AMTM
Amentum Holdings, Inc.
This page
5,578,386 $145,484,305

All Filings in AMTM

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7 filing rows on record
Report Date Value (USD) Shares
2026-03-31 $145,484,305 5,578,386
2025-12-31 $194,511,816 6,707,304
2025-09-30 $149,334,212 6,235,249
2025-06-30 $107,990,486 4,573,930
2025-03-31 $80,242,870 4,408,949
2024-12-31 $50,367,962 2,395,053
2024-09-30 $2,557,908 79,315