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AVENIR CORP

Position in AMTM — Amentum Holdings, Inc.

CIK 1033475 ALEXANDRIA, VA

Position in AMTM

as of Mar 31, 2026 · filed May 14, 2026
Position Value
$21,935,861
-$2,741,515 QoQ
Shares Held
841,099
-1.2% QoQ
Ownership
0.344%
of shares outstanding
% of Portfolio
2.70%
of 13F equity value
Holder Rank
not a current holder
Holding Since
Dec 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 Mar 31, 2026

AVENIR CORP holds $58,754,694 across 2 Specialty Business Services names. AMTM ranks #2 (37.3% of the industry book) .

# Ticker Company Shares Value (USD) Open
2 AMTM
Amentum Holdings, Inc.
This page
841,099 $21,935,861

All Filings in AMTM

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6 filing rows on record
Report Date Value (USD) Shares
2026-03-31 $21,935,861 841,099
2025-12-31 $24,677,376 850,944
2025-09-30 $20,655,749 862,453
2025-06-30 $21,139,260 895,352
2025-03-31 $16,455,748 904,162
2024-12-31 $4,068,674 193,470