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AVENIR CORP

Position in AMTM — Amentum Holdings, Inc.

CIK 1033475 ALEXANDRIA, VA

Position in AMTM

as of Jun 30, 2026 · filed Aug 13, 2026
Position Value
$16,778,376
-$5,157,485 QoQ
Shares Held
811,726
-3.5% QoQ
Ownership
0.332%
of shares outstanding
% of Portfolio
2.06%
of 13F equity value
Holder Rank
#37
of 462 holders
Holding Since
Dec 2024
7 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

AVENIR CORP holds $47,255,233 across 2 Specialty Business Services names. AMTM ranks #2 (35.5% of the industry book) .

# Ticker Company Shares Value (USD) Open
2 AMTM
Amentum Holdings, Inc.
This page
811,726 $16,778,376

All Filings in AMTM

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7 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $16,778,376 811,726
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