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UMB Bank, n.a.

Position in AMTM — Amentum Holdings, Inc.

CIK 933429 Kansas City, MO

Position in AMTM

as of Jun 30, 2026 · filed Aug 13, 2026
Position Value
$38,115
-$27,110 QoQ
Shares Held
1,844
-26.3% QoQ
Ownership
0.001%
of shares outstanding
% of Portfolio
0.00%
of 13F equity value
Holder Rank
#293
of 457 holders
Holding Since
Dec 2024
7 quarters on record
Voting authority Sole 20% Shared 0% None 80%

Common Shares in AMTM Over Time

Shares Held

Position Value (USD)

Position in Specialty Business Services

Industrials · as of Jun 30, 2026

UMB Bank, n.a. holds $10,983,891 across 17 Specialty Business Services names. AMTM ranks #8 (0.3% of the industry book) .

# Ticker Company Shares Value (USD) Open
8 AMTM
Amentum Holdings, Inc.
This page
1,844 $38,115

All Filings in AMTM

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7 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $38,115 1,844
2026-03-31 $65,225 2,501
2025-12-31 $120,060 4,140
2025-09-30 $99,823 4,168
2025-06-30 $97,296 4,121
2025-03-31 $67,175 3,691
2024-12-31 $170,258 8,096