Skip to main content

CenterBook Partners LP

Position in AMTM — Amentum Holdings, Inc.

CIK 1872738 GREENWICH, CT

Position in AMTM

as of Jun 30, 2026 · filed Aug 11, 2026
Position Value
$6,795,593
+$3,047,950 QoQ
Shares Held
328,766
+128.8% QoQ
Ownership
0.134%
of shares outstanding
% of Portfolio
0.34%
of 13F equity value
Holder Rank
#64
of 463 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

CenterBook Partners LP holds $14,154,173 across 7 Specialty Business Services names. AMTM ranks #1 (48.0% of the industry book) .

# Ticker Company Shares Value (USD) Open
1 AMTM
Amentum Holdings, Inc.
This page
328,766 $6,795,593

All Filings in AMTM

Export CSV
7 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $6,795,593 328,766
2026-03-31 $3,747,643 143,698
2025-12-31 $6,444,467 222,223
2025-09-30 $7,378,539 308,081
2025-06-30 $2,959,277 125,340
2025-03-31 $7,545,246 414,574
2024-12-31 $1,499,565 71,306