Position in AMTM
as of Mar 31, 2026
· filed May 15, 2026
Position Value
$36,407,680
-$3,960,320 QoQ
Shares Held
1,396,000
+0.3% QoQ
Ownership
0.571%
of shares outstanding
% of Portfolio
10.77%
of 13F equity value
Holder Rank
—
not a current holder
Holding Since
Jun 2025
4 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, 2026BRIGHTLINE CAPITAL MANAGEMENT, LLC holds $36,407,680 across 1 Specialty Business Services name. AMTM ranks #1 (100.0% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | AMTM |
Amentum Holdings, Inc.
This page
|
1,396,000 | $36,407,680 |
All Filings in AMTM
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4 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $36,407,680 | 1,396,000 | Shares | Sole | 2026-05-15 | |
| 2025-12-31 | $40,368,000 | 1,392,000 | Shares | Sole | 2026-02-13 | |
| 2025-09-30 | $28,740,000 | 1,200,000 | Shares | Sole | 2025-11-13 | |
| 2025-06-30 | $23,610,000 | 1,000,000 | Shares | Sole | 2025-08-14 | |
| No filing history on record for this holder in this stock. | ||||||