1RT Acquisition Corp.
ONCH- Exchange
- Nasdaq
- Industry
- Blank Checks
- SEC CIK
- 0002054272
No open-market purchases or sales by 1RT Acquisition Corp. insiders were filed in the last 90 days; 58 institutions reported holding it in 13F filings for Q2 2026, worth $128.7M in total; no superinvestor holds it.
13F holders, Q1 2026
Institutional positions in 1RT Acquisition Corp. as of Mar 31, 2026. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 57
- +8 vs. Q4 2025
- Shares held
- 11.8M
- −169.9K (−1.4%) vs. Q4 2025
- Total value
- $119.5M
- −$2.42M (−2.0%) vs. Q4 2025
- New holders
- 10
- 12 more added
- Sold out
- 2
- 7 more reduced
1 institution that held it in Q4 2025 haven't filed for Q1 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 2025: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting ONCH on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 58 | $128.7M |
| Q1 2026 | 57 | $119.5M |
| Q4 2025 | 50 | $123.0M |
| Q3 2025 | 36 | $90.1M |
| Q2 2025 | 0 | $0 |
| Q1 2025 | 0 | $0 |
| Q4 2024 | 0 | $0 |
| Q3 2024 | 0 | $0 |
| Q2 2024 | 0 | $0 |
| Q1 2024 | 0 | $0 |
| Q4 2023 | 0 | $0 |
| Q3 2023 | 0 | $0 |
| Q2 2023 | 0 | $0 |
| Q1 2023 | 0 | $0 |
| Q4 2022 | 0 | $0 |
| Q3 2022 | 0 | $0 |
| Q2 2022 | 0 | $0 |
| Q1 2022 | 0 | $0 |
| Q4 2021 | 0 | $0 |
| Q3 2021 | 0 | $0 |
| Q2 2021 | 0 | $0 |
| Q1 2021 | 0 | $0 |
Institutions, Q1 2026
Shares, value and share of portfolio for each institution holding 1RT Acquisition Corp.; share changes are against Q4 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Morgan Stanley | 78 | $791 | 0.00% | +32+69.6% | Added |
| UBS Group AG | 149 | $1.51K | 0.00% | +149 | New |
| PenderFund Capital Management Ltd. | 5,000 | $50.7K | 0.01% | 00.0% | Unchanged |
| Commonwealth of Pennsylvania Public School Empls Retrmt Sys | 10,000 | $101.5K | 0.00% | 00.0% | Unchanged |
| TIG Advisors, LLC | 10,000 | $101.5K | 0.00% | 00.0% | Unchanged |
| Citadel Advisors LLC | 10,657 | $108.1K | 0.00% | +10,657 | New |
| Schonfeld Strategic Advisors LLC | 20,000 | $203.0K | 0.00% | +20,000 | New |
| Hudson Bay Capital Management LP | 25,000 | $253.5K | 0.00% | 00.0% | Unchanged |
| Alberta Investment Management Corp | 25,000 | $253.5K | 0.00% | 00.0% | Unchanged |
| Davidson Kempner Capital Management LP | 25,000 | $253.5K | 0.00% | 00.0% | Unchanged |
| Toronto Dominion Bank | 25,036 | $253.9K | 0.00% | +17,436+229.4% | Added |
| BNP Paribas Arbitrage, SA | 27,168 | $275.5K | 0.00% | +3,108+12.9% | Added |
| D. E. Shaw & Co., Inc. | 29,947 | $303.7K | 0.00% | +19,947+199.5% | Added |
| Clear Street Group Inc. | 39,032 | $395.8K | 0.00% | −26,228−40.2% | Reduced |
| Boothbay Fund Management, LLC | 46,070 | $467.1K | 0.01% | 00.0% | Unchanged |
| Gritstone Asset Management LLC | 49,433 | $501.3K | 0.54% | 00.0% | Unchanged |
| Readystate Asset Management LP | 50,000 | $507.0K | 0.03% | +50,000 | New |
| Quarry LP | 49,959 | $507.1K | 0.10% | 00.0% | Unchanged |
| RLH Capital LLC | 49,959 | $507.1K | 0.26% | +49,959 | New |
| JPMorgan Chase & Co | 53,152 | $539.0K | 0.00% | 00.0% | Unchanged |
| Centiva Capital, LP | 60,000 | $608.4K | 0.03% | +50,000+500.0% | Added |
| Mizuho Securities USA LLC | 60,253 | $608.6K | 0.01% | +60,253 | New |
| CNH Partners LLC | 73,135 | $741.6K | 0.01% | −2,797−3.7% | Reduced |
| Berkley W R Corp | 74,416 | $755.3K | 0.04% | 00.0% | Unchanged |
| Glazer Capital, LLC | 75,000 | $761.0K | 0.02% | +75,000 | New |
| Virtu Financial LLC | 75,157 | $762.0K | 0.03% | −5,131−6.4% | Reduced |
| Rivernorth Capital Management, LLC | 88,032 | $892.6K | 0.05% | 00.0% | Unchanged |
| Aristeia Capital LLC | 100,000 | $1.01M | 0.02% | 00.0% | Unchanged |
| Magnetar Financial LLC | 100,000 | $1.01M | 0.01% | 00.0% | Unchanged |
| K2 Principal Fund, L.P. | 100,000 | $1.01M | 0.11% | 00.0% | Unchanged |
| Picton Mahoney Asset Management | 100,000 | $1.01M | 0.01% | 00.0% | Unchanged |
| O'Connor Alternative Investments LLC | 100,000 | $1.01M | 0.05% | +100,000 | New |
| DLD Asset Management, LP | 109,331 | $1.11M | 0.11% | 00.0% | Unchanged |
| Cable Car Capital LLC | 125,000 | $1.27M | 0.44% | 00.0% | Unchanged |
| Two Sigma Investments, LP | 150,624 | $1.53M | 0.00% | 00.0% | Unchanged |
| Periscope Capital Inc. | 153,962 | $1.56M | 0.27% | +74,362+93.4% | Added |
| Wolverine Asset Management LLC | 154,248 | $1.56M | 0.02% | +154,248 | New |
| Shaolin Capital Management LLC | 158,656 | $1.61M | 0.07% | −41,344−20.7% | Reduced |
| Sona Asset Management (US) LLC | 161,200 | $1.63M | 0.06% | +161,200 | New |
| Mint Tower Capital Management B.V. | 200,000 | $2.03M | 0.20% | 00.0% | Unchanged |
| HBK Investments L P | 249,304 | $2.53M | 0.03% | 00.0% | Unchanged |
| Tenor Capital Management Co., L.P. | 250,000 | $2.54M | 0.04% | 00.0% | Unchanged |
| Moore Capital Management, LP | 250,000 | $2.54M | 0.09% | 00.0% | Unchanged |
| Healthcare of Ontario Pension Plan Trust Fund | 250,000 | $2.54M | 0.00% | 00.0% | Unchanged |
| Context Capital Management, LLC | 250,000 | $2.54M | 0.06% | 00.0% | Unchanged |
| Whitebox Advisors LLC | 260,000 | $2.64M | 0.04% | 00.0% | Unchanged |
| Millennium Management LLC | 293,160 | $2.97M | 0.00% | +31,208+11.9% | Added |
| Vivaldi Asset Management, LLC | 299,996 | $3.04M | 0.16% | 00.0% | Unchanged |
| Verition Fund Management LLC | 345,235 | $3.50M | 0.03% | +52,266+17.8% | Added |
| Radcliffe Capital Management, L.P. | 385,436 | $3.91M | 0.29% | +246,144+176.7% | Added |
| Saba Capital Management, L.P. | 524,932 | $5.33M | 0.17% | −250,000−32.3% | Reduced |
| MMCAP International Inc. SPC | 600,000 | $6.08M | 0.53% | 00.0% | Unchanged |
| J. Goldman & Co LP | 700,000 | $7.10M | 0.33% | −162,500−18.8% | Reduced |
| Governors Lane LP | 750,000 | $7.61M | 0.95% | +227,337+43.5% | Added |
| Jain Global LLC | 891,221 | $9.04M | 0.12% | −1,000−0.1% | Reduced |
| Linden Advisors LP | 1,010,100 | $10.2M | 0.06% | +500,000+98.0% | Added |
| Meteora Capital, LLC | 1,705,014 | $17.3M | 1.28% | +166,000+10.8% | Added |
| Harraden Circle Investments, LLC | 0 | $0 | 0.00% | −1,500,192−100.0% | Sold out |
| ExodusPoint Capital Management, LP | 0 | $0 | 0.00% | −250,000−100.0% | Sold out |
| UBS Oconnor LLC | – | – | – | – | Not filed |