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OPPENHEIMER & CO INC

Position in AMTM — Amentum Holdings, Inc.

CIK 822581 NEW YORK, NY

Position in AMTM

as of Jun 30, 2026 · filed Aug 3, 2026
Position Value
$2,955,272
-$1,448,909 QoQ
Shares Held
142,974
-15.3% QoQ
Ownership
0.058%
of shares outstanding
% of Portfolio
0.04%
of 13F equity value
Holder Rank
#98
of 461 holders
Holding Since
Sep 2024
6 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 Jun 30, 2026

OPPENHEIMER & CO INC holds $22,931,143 across 9 Specialty Business Services names. AMTM ranks #4 (12.9% of the industry book) .

# Ticker Company Shares Value (USD) Open
4 AMTM
Amentum Holdings, Inc.
This page
142,974 $2,955,272

All Filings in AMTM

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6 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $2,955,272 142,974
2026-03-31 $4,404,181 168,872
2025-09-30 $1,807,817 75,483
2025-06-30 $216,338 9,163
2024-12-31 $223,359 10,621
2024-09-30 $1,471,664 45,633