Westchester Capital Management, LLC
Position in ONCH — 1RT Acquisition Corp.
CIK 1512805
VALHALLA, NY
Position in ONCH
as of Jun 30, 2026
· filed Aug 14, 2026
Position Value
$318,678
+$1,850 QoQ
Shares Held
30,820
0.0% QoQ
Ownership
0.143%
of shares outstanding
% of Portfolio
0.02%
of 13F equity value
Holder Rank
#56
of 71 holders
Holding Since
Sep 2025
4 quarters on record
Voting authority
Sole 7%
Shared 93%
None 0%
Common Shares in ONCH Over Time
Shares Held
Position Value (USD)
Position in Shell Companies
Financial Services · as of Jun 30, 2026Westchester Capital Management, LLC holds $674,084,820 across 166 Shell Companies names. ONCH ranks #138 (0.0% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | 2,177,638 | $23,351,250 | |||
| 2 | KFII |
K&F Growth Acquisition Corp. II
|
1,726,268 | $15,574,626 | |
| 3 | GTERA |
Globa Terra Acquisition Corp
|
1,414,429 | $14,582,762 | |
| 4 | GIW |
GigCapital8 Corp.
|
1,330,000 | $13,391,768 | |
| 5 | KCHV |
Kochav Defense Acquisition Corp.
|
2,286,000 | $13,335,818 | |
| 6 | OYSE |
Oyster Enterprises II Acquisition Corp
|
2,145,112 | $13,326,700 | |
| 7 | SOUL |
Soulpower Acquisition Corp.
|
1,279,300 | $13,240,753 | |
| 8 | SDHI |
Siddhi Acquisition Corp (Cayman Islands)
|
1,249,197 | $13,016,631 |
All Filings in ONCH
Export CSV
4 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-06-30 ONCHU | $318,678 | 30,820 | Shares | Other | 2026-08-14 | |
| 2026-03-31 ONCHU | $316,828 | 30,820 | Shares | Other | 2026-05-15 | |
| 2025-12-31 ONCHU | $320,527 | 30,820 | Shares | Other | 2026-02-13 | |
| 2025-09-30 ONCHU | $325,150 | 30,820 | Shares | Other | 2025-11-14 | |
| No filing history on record for this holder in this stock. | ||||||