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Russell Investments Group, Ltd.

Position in AMTM — Amentum Holdings, Inc.

CIK 1692234 Seattle, WA

Position in AMTM

as of Jun 30, 2026 · filed Aug 6, 2026
Position Value
$17,376,067
-$1,240,563 QoQ
Shares Held
840,642
+17.8% QoQ
Ownership
0.344%
of shares outstanding
% of Portfolio
0.02%
of 13F equity value
Holder Rank
#35
of 458 holders
Holding Since
Sep 2024
8 quarters on record
Voting authority Sole 96% Shared 0% None 4%

Common Shares in AMTM Over Time

Shares Held

Position Value (USD)

Position in Specialty Business Services

Industrials · as of Jun 30, 2026

Russell Investments Group, Ltd. holds $397,556,678 across 30 Specialty Business Services names. AMTM ranks #4 (4.4% of the industry book) .

# Ticker Company Shares Value (USD) Open
4 AMTM
Amentum Holdings, Inc.
This page
840,642 $17,376,067

All Filings in AMTM

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8 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $17,376,067 840,642
2026-03-31 $18,616,630 713,828
2025-12-31 $12,673,464 437,016
2025-09-30 $6,934,694 289,549
2025-06-30 $7,748,372 328,182
2025-03-31 $4,239,377 232,933
2024-12-31 $2,640,060 125,538
2024-09-30 $2,495,856 77,391