Who owns 1RT Acquisition Corp.?
Prices and market caps: Cboe delayed data, at least 15 minutes delayed. Not real-time. Fundamentals from company filings.
Institutional ownership of ONCHU from SEC Form 13F filings across 17 reporting managers. All positions are from one synchronized reporting period — 2026-06-30 books, filed up to 45 days after quarter end — so every row is comparable.
As of the 2026-06-30 reporting period, 17 institutions disclosed 3.2M shares of 1RT Acquisition Corp. worth $32.7M — about 14.6% of shares outstanding; the largest disclosed holder is Point72 Asset Management, L.P.. Source: SEC Form 13F filings, parsed by EvidInvest.
17
13F holders
$32.7M
value, 2026 filers
14.6%
of shares outstanding (3.2M sh)
1
new positions (2026 filers)
Top institutional holders
ordered by shares owned · positions as of 2026-06-30 · % of fund = share of the manager's own book · % of co. = share of ONCHU's shares outstanding
| # | Manager | Shares | Value | % of fund | % of co. | Δ shares QoQ |
|---|---|---|---|---|---|---|
| 1 | Point72 Asset Management, L.P. | 1.5M | $15.5M | 0.0% | 7% | 0.0% |
| 2 | LMR Partners LLP | 700,000 | $7.2M | 0.0% | 3.2% | 0.0% |
| 3 | Ghisallo Capital Management LLC | 250,000 | $2.6M | 0.1% | 1.2% | 0.0% |
| 4 | CITADEL ADVISORS LLC | 172,678 | $1.8M | 0.0% | 0.8% | +1.8% |
| 5 | TORONTO DOMINION BANK | 102,438 | $1.1M | 0.0% | 0.5% | 0.0% |
| 6 | PEAK6 LLC | 75,000 | $775,500 | 0.0% | 0.3% | 0.0% |
| 7 | Kamunting Street Capital Management, L.P. | 60,000 | $620,000 | 0.3% | 0.3% | 0.0% |
| 8 | JPMORGAN CHASE & CO | 50,000 | $517,000 | 0.0% | 0.2% | 0.0% |
| 9 | OMERS ADMINISTRATION Corp | 49,991 | $516,907 | 0.0% | 0.2% | 0.0% |
| 10 | HRT FINANCIAL LP | 48,842 | $507,000 | 0.0% | 0.2% | +4.6% |
| 11 | Clear Street Group Inc. | 40,583 | $419,628 | 0.0% | 0.2% | -69.6% |
| 12 | Westchester Capital Management, LLC | 30,820 | $320,528 | 0.0% | 0.1% | 0.0% |
| 13 | Yakira Capital Management, Inc. | 24,485 | $253,175 | 0.1% | 0.1% | 0.0% |
| 14 | SUSQUEHANNA INTERNATIONAL GROUP, LLPNEW | 19,128 | $198,931 | 0.0% | 0.1% | new |
| 15 | Parallax Volatility Advisers, L.P. | 12,187 | $126,745 | 0.0% | 0.1% | 0.0% |
| 16 | READYSTATE ASSET MANAGEMENT LP | 10,000 | $104,000 | 0.0% | 0% | 0.0% |
| 17 | Walleye Capital LLC | 10,000 | $104,000 | 0.0% | 0% | 0.0% |
Source: SEC Form 13F-HR filings (institutional managers over $100M in US-listed positions). 13Fs disclose long positions only, up to 45 days after quarter end; each manager's latest filed quarter is shown per row and dollar values are the manager's filed marks. Aggregates labeled "2026 filers" count only managers whose latest book is a 2026 quarter. Related: valuation · options positioning · supply chain. Research, not investment advice.