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GRIZZLYROCK CAPITAL, LLC

Position in AMTM — Amentum Holdings, Inc.

CIK 2011732 CHICAGO, IL

Position in AMTM

as of Mar 31, 2026 · filed May 15, 2026
Position Value
$7,540,067
-$728,210 QoQ
Shares Held
289,113
+1.4% QoQ
Ownership
0.118%
of shares outstanding
% of Portfolio
5.97%
of 13F equity value
Holder Rank
not a current holder
Holding Since
Mar 2025
5 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 Mar 31, 2026

GRIZZLYROCK CAPITAL, LLC holds $7,540,067 across 1 Specialty Business Services name. AMTM ranks #1 (100.0% of the industry book) .

# Ticker Company Shares Value (USD) Open
1 AMTM
Amentum Holdings, Inc.
This page
289,113 $7,540,067

All Filings in AMTM

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5 filing rows on record
Report Date Value (USD) Shares
2026-03-31 $7,540,067 289,113
2025-12-31 $8,268,277 285,113
2025-09-30 $6,780,556 283,113
2025-06-30 $5,981,900 253,363
2025-03-31 $2,988,913 164,226