20 institutions reported holding $32.7M of 1RT ACQUISITION CORP. (ONCHU) in SEC 13F filings for 2026-06-30. Largest institutional holders: Point72 Asset Management, L.P. ($15.5M), LMR Partners LLP ($7.2M), Ghisallo Capital Management LLC ($2.6M), CITADEL ADVISORS LLC ($1.8M), TORONTO DOMINION BANK ($1.1M). Source: SEC Form 13F.
| Rank | Institution | Value | Shares | Change |
|---|---|---|---|---|
| 1 | Point72 Asset Management, L.P. | $15.5M | 1.5M | Hold |
| 2 | LMR Partners LLP | $7.2M | 700,000 | Hold |
| 3 | Ghisallo Capital Management LLC | $2.6M | 250,000 | Hold |
| 4 | CITADEL ADVISORS LLC | $1.8M | 172,678 | Added |
| 5 | TORONTO DOMINION BANK | $1.1M | 102,438 | Hold |
| 6 | PEAK6 LLC | $775,500 | 75,000 | Hold |
| 7 | Kamunting Street Capital Management, L.P. | $620,000 | 60,000 | Hold |
| 8 | JPMORGAN CHASE & CO | $517,000 | 50,000 | Hold |
| 9 | OMERS ADMINISTRATION Corp | $516,907 | 49,991 | Hold |
| 10 | HRT FINANCIAL LP | $507,000 | 48,842 | Added |
| 11 | Clear Street Group Inc. | $419,628 | 40,583 | Trimmed |
| 12 | Westchester Capital Management, LLC | $320,528 | 30,820 | Hold |
| 13 | Yakira Capital Management, Inc. | $253,175 | 24,485 | Hold |
| 14 | SUSQUEHANNA INTERNATIONAL GROUP, LLP | $198,931 | 19,128 | New |
| 15 | Parallax Volatility Advisers, L.P. | $126,745 | 12,187 | Trimmed |
| 16 | Walleye Capital LLC | $104,000 | 10,000 | Hold |
| 17 | READYSTATE ASSET MANAGEMENT LP | $104,000 | 10,000 | Hold |
| 18 | SCOGGIN MANAGEMENT LP | $0 | 0 | Exited |
| 19 | Polar Asset Management Partners Inc. | $0 | 0 | Exited |
| 20 | UBS Group AG | $0 | 0 | Exited |
Source: SEC Form 13F filings · as of 2026-06-30