Position in AMTM
as of Mar 31, 2026
· filed May 14, 2026
Position Value
$54,016,896
+$6,558,628 QoQ
Shares Held
2,071,200
+26.6% QoQ
Ownership
0.848%
of shares outstanding
% of Portfolio
12.62%
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)
Derivatives in AMTM
reported options exposure · as of Mar 31, 2026CallValue
$15,556,720
CallShares
596,500
PutValue
$3,912,000
PutShares
150,000
Notional value of option positions as reported on Form 13F. Calls and puts are disclosed separately and do not net against the common-share stake above.
Position in Specialty Business Services
Industrials · as of Mar 31, 2026Arvin Capital Management LP holds $82,819,821 across 2 Specialty Business Services names. AMTM ranks #1 (65.2% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | AMTM |
Amentum Holdings, Inc.
This page
|
2,071,200 | $54,016,896 | |
| 2 | RBA |
Rb Global Inc.
|
300,500 | $28,802,925 |
All Filings in AMTM
Export CSV
12 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $54,016,896 | 2,071,200 | Shares | Sole | 2026-05-14 | |
| 2026-03-31 | $3,912,000 | 150,000 | Put | Sole | 2026-05-14 | |
| 2026-03-31 | $15,556,720 | 596,500 | Call | Sole | 2026-05-14 | |
| 2025-12-31 | $4,770,500 | 164,500 | Call | Sole | 2026-02-13 | |
| 2025-12-31 | $47,458,268 | 1,636,492 | Shares | Sole | 2026-02-13 | |
| 2025-09-30 | $39,193,983 | 1,636,492 | Shares | Sole | 2025-11-12 | |
| 2025-06-30 | $2,361,000 | 100,000 | Call | Sole | 2025-08-13 | |
| 2025-06-30 | $50,512,036 | 2,139,434 | Shares | Sole | 2025-08-13 | |
| 2025-03-31 | $30,706,111 | 1,687,149 | Shares | Sole | 2025-05-13 | |
| 2025-03-31 | $13,311,480 | 731,400 | Call | Sole | 2025-05-13 | |
| 2024-12-31 | $4,206,000 | 200,000 | Call | Sole | 2025-02-14 | |
| 2024-12-31 | $20,298,092 | 965,197 | Shares | Sole | 2025-02-14 | |
| No filing history on record for this holder in this stock. | ||||||