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RHUMBLINE ADVISERS

Position in AMTM — Amentum Holdings, Inc.

CIK 1115418 BOSTON, MA

Position in AMTM

as of Jun 30, 2026 · filed Aug 12, 2026
Position Value
$5,871,520
-$1,960,121 QoQ
Shares Held
284,060
-5.4% QoQ
Ownership
0.116%
of shares outstanding
% of Portfolio
0.00%
of 13F equity value
Holder Rank
#72
of 462 holders
Holding Since
Sep 2024
8 quarters on record
Voting authority Sole 68% Shared 0% None 32%

Common Shares in AMTM Over Time

Shares Held

Position Value (USD)

Position in Specialty Business Services

Industrials · as of Jun 30, 2026

RHUMBLINE ADVISERS holds $393,095,751 across 31 Specialty Business Services names. AMTM ranks #12 (1.5% of the industry book) .

# Ticker Company Shares Value (USD) Open

All Filings in AMTM

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8 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $5,871,520 284,060
2026-03-31 $7,831,641 300,293
2025-12-31 $8,451,789 291,441
2025-09-30 $6,941,141 289,818
2025-06-30 $6,781,901 287,247
2025-03-31 $5,643,874 310,103
2024-12-31 $6,207,719 295,184
2024-09-30 $7,154,920 221,858