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OPPENHEIMER & CO INC

Position in AMTM — Amentum Holdings, Inc.

CIK 822581 NEW YORK, NY

Position in AMTM

as of Mar 31, 2026 · filed Apr 24, 2026
Position Value
$4,404,181
+$2,596,364 QoQ
Shares Held
168,872
+123.7% QoQ
Ownership
0.069%
of shares outstanding
% of Portfolio
0.07%
of 13F equity value
Holder Rank
not a current holder
Holding Since
Sep 2024
5 quarters on record
Voting authority Sole 100.ToString("F0")% Shared 0.ToString("F0")% None 0.ToString("F0")%

Common Shares in AMTM Over Time

Shares Held

Position Value (USD)

Position in Specialty Business Services

Industrials · as of Mar 31, 2026

OPPENHEIMER & CO INC holds $24,273,197 across 8 Specialty Business Services names. AMTM ranks #3 (18.1% of the industry book) .

# Ticker Company Shares Value (USD) Open
3 AMTM
Amentum Holdings, Inc.
This page
168,872 $4,404,181

All Filings in AMTM

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5 filing rows on record
Report Date Value (USD) Shares
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