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Russell Investments Group, Ltd.

Position in AMTM — Amentum Holdings, Inc.

CIK 1692234 Seattle, WA

Position in AMTM

as of Mar 31, 2026 · filed May 8, 2026
Position Value
$18,616,630
+$5,943,166 QoQ
Shares Held
713,828
+63.3% QoQ
Ownership
0.292%
of shares outstanding
% of Portfolio
0.02%
of 13F equity value
Holder Rank
not a current holder
Holding Since
Sep 2024
7 quarters on record
Voting authority Sole 95.1181517116168.ToString("F0")% Shared 0.ToString("F0")% None 4.881848288383196.ToString("F0")%

Common Shares in AMTM Over Time

Shares Held

Position Value (USD)

Position in Specialty Business Services

Industrials · as of Mar 31, 2026

Russell Investments Group, Ltd. holds $354,291,463 across 30 Specialty Business Services names. AMTM ranks #4 (5.3% of the industry book) .

# Ticker Company Shares Value (USD) Open
4 AMTM
Amentum Holdings, Inc.
This page
713,828 $18,616,630

All Filings in AMTM

Export CSV
7 filing rows on record
Report Date Value (USD) Shares
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