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 |
|---|---|---|---|---|---|
| Meteora Capital, LLC | 1,705,014 | $17.3M | 1.28% | +166,000+10.8% | Added |
| Linden Advisors LP | 1,010,100 | $10.2M | 0.06% | +500,000+98.0% | Added |
| Jain Global LLC | 891,221 | $9.04M | 0.12% | −1,000−0.1% | Reduced |
| Governors Lane LP | 750,000 | $7.61M | 0.95% | +227,337+43.5% | Added |
| J. Goldman & Co LP | 700,000 | $7.10M | 0.33% | −162,500−18.8% | Reduced |
| MMCAP International Inc. SPC | 600,000 | $6.08M | 0.53% | 00.0% | Unchanged |
| Saba Capital Management, L.P. | 524,932 | $5.33M | 0.17% | −250,000−32.3% | Reduced |
| Radcliffe Capital Management, L.P. | 385,436 | $3.91M | 0.29% | +246,144+176.7% | Added |
| Verition Fund Management LLC | 345,235 | $3.50M | 0.03% | +52,266+17.8% | Added |
| Vivaldi Asset Management, LLC | 299,996 | $3.04M | 0.16% | 00.0% | Unchanged |
| Millennium Management LLC | 293,160 | $2.97M | 0.00% | +31,208+11.9% | Added |
| Whitebox Advisors LLC | 260,000 | $2.64M | 0.04% | 00.0% | Unchanged |
| Context Capital Management, LLC | 250,000 | $2.54M | 0.06% | 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 |
| HBK Investments L P | 249,304 | $2.53M | 0.03% | 00.0% | Unchanged |
| Mint Tower Capital Management B.V. | 200,000 | $2.03M | 0.20% | 00.0% | Unchanged |
| Sona Asset Management (US) LLC | 161,200 | $1.63M | 0.06% | +161,200 | New |
| Shaolin Capital Management LLC | 158,656 | $1.61M | 0.07% | −41,344−20.7% | Reduced |
| Wolverine Asset Management LLC | 154,248 | $1.56M | 0.02% | +154,248 | New |
| Periscope Capital Inc. | 153,962 | $1.56M | 0.27% | +74,362+93.4% | Added |
| Two Sigma Investments, LP | 150,624 | $1.53M | 0.00% | 00.0% | Unchanged |
| Cable Car Capital LLC | 125,000 | $1.27M | 0.44% | 00.0% | Unchanged |
| DLD Asset Management, LP | 109,331 | $1.11M | 0.11% | 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 |
| Rivernorth Capital Management, LLC | 88,032 | $892.6K | 0.05% | 00.0% | Unchanged |
| Virtu Financial LLC | 75,157 | $762.0K | 0.03% | −5,131−6.4% | Reduced |
| Glazer Capital, LLC | 75,000 | $761.0K | 0.02% | +75,000 | New |
| Berkley W R Corp | 74,416 | $755.3K | 0.04% | 00.0% | Unchanged |
| CNH Partners LLC | 73,135 | $741.6K | 0.01% | −2,797−3.7% | Reduced |
| Mizuho Securities USA LLC | 60,253 | $608.6K | 0.01% | +60,253 | New |
| Centiva Capital, LP | 60,000 | $608.4K | 0.03% | +50,000+500.0% | Added |
| JPMorgan Chase & Co | 53,152 | $539.0K | 0.00% | 00.0% | Unchanged |
| Quarry LP | 49,959 | $507.1K | 0.10% | 00.0% | Unchanged |
| RLH Capital LLC | 49,959 | $507.1K | 0.26% | +49,959 | New |
| Readystate Asset Management LP | 50,000 | $507.0K | 0.03% | +50,000 | New |
| Gritstone Asset Management LLC | 49,433 | $501.3K | 0.54% | 00.0% | Unchanged |
| Boothbay Fund Management, LLC | 46,070 | $467.1K | 0.01% | 00.0% | Unchanged |
| Clear Street Group Inc. | 39,032 | $395.8K | 0.00% | −26,228−40.2% | Reduced |
| D. E. Shaw & Co., Inc. | 29,947 | $303.7K | 0.00% | +19,947+199.5% | Added |
| BNP Paribas Arbitrage, SA | 27,168 | $275.5K | 0.00% | +3,108+12.9% | Added |
| Toronto Dominion Bank | 25,036 | $253.9K | 0.00% | +17,436+229.4% | Added |
| 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 |
| Schonfeld Strategic Advisors LLC | 20,000 | $203.0K | 0.00% | +20,000 | New |
| Citadel Advisors LLC | 10,657 | $108.1K | 0.00% | +10,657 | New |
| 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 |
| PenderFund Capital Management Ltd. | 5,000 | $50.7K | 0.01% | 00.0% | Unchanged |
| UBS Group AG | 149 | $1.51K | 0.00% | +149 | New |
| Morgan Stanley | 78 | $791 | 0.00% | +32+69.6% | 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 |