Latest Period
Q4 2025
Security Snapshot
1RT Acquisition Corp. - Class A ordinary shares, par value $0.0001 per share (ONCH) Institutional Ownership
CUSIP: G6757R105
13F Institutional Holders and Ownership History from Q3 2025 to Q1 2026
Institutions Reporting
50
Shares (Excl. Options)
12,053,938
Price
$10.20
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- Type / Class
- Equity / Class A ordinary shares, par value $0.0001 per share
- Symbol
- ONCH on Nasdaq
- Shares outstanding
- 17,120,339
- Price per share
- $10.14
- All holders as of 31 Dec 2025
- Q4 2025
- Total 13F shares
- 12,053,938
- Total reported value
- $122,950,228
- % of total 13F portfolios
- 0%
- Share change
- +3,436,241
- Value change
- +$35,047,055
- Number of holders
- 50
Reported Shares, Excluding Options vs Price
Reported Value, Excluding Options
Total Investors
Quick Takeaways
- ONCH - 1RT Acquisition Corp. - Class A ordinary shares, par value $0.0001 per share is tracked under CUSIP G6757R105.
- 50 institutions reported positions in Q4 2025.
- 7 significant owners is listed from Schedule 13D/13G reporting.
What Changed
- Holder count moved from 50 to 8 between Q4 2025 and Q1 2026.
- Reported value moved from $122,950,228 to $7,494,421.
Why This Matters
- You can quickly see who holds this security, then open quarter and manager detail pages for full evidence.
- 13F and Schedule 13D/13G sections are kept together so you can cross-check institutional and beneficial ownership context.
Source Evidence
Source: SEC Form 13F
Open SEC Evidence
Latest holder context comes from 50 institutions filings for Q4 2025.
Investment Quick Answers
What is CUSIP G6757R105?
CUSIP G6757R105 identifies ONCH - 1RT Acquisition Corp. - Class A ordinary shares, par value $0.0001 per share in SEC 13F datasets.
Where can I see the latest institutional holders?
Review the Q4 2025 holders report and the ownership history table below.
Next ownership checks
Use the next link that matches the question you still need to answer about this security.
- Latest 13F filings when you want to inspect fresh institutional portfolio moves.
- Latest Schedule 13D/13G reports when you need large-owner changes outside the 13F cycle.
- All institutional ownership pages to compare this security with other holder-history pages.
Recent Quarterly Holder Reports
Open recent reporting periods for CUSIP G6757R105:
Significant Owners of 1RT Acquisition Corp. - Class A ordinary shares, par value $0.0001 per share (ONCH) based on Schedule 13D/G filings
| Filer | Ownership | Change % | Holdings Value | Net Change | Nb Shares | Change % | Reporting Name | Report Period |
|---|---|---|---|---|---|---|---|---|
| 1RT Acquisition Sponsor LLC | 20% | 4,312,500 | 1RT Acquisition Sponsor LLC | 01 Jul 2025 | ||||
| METEORA CAPITAL, LLC | 8.9% | $15,697,943 | 1,539,014 | Meteora Capital, LLC | 31 Dec 2025 | |||
| Harraden Circle Investments, LLC | 8.7% | $15,677,006 | 1,500,192 | Harraden Circle Investments, LLC | 30 Sep 2025 | |||
| Linden Capital L.P. | 5.9% | $10,303,020 | 1,010,100 | Linden Advisors LP | 05 Mar 2026 | |||
| Jain Global LLC | 5.2% | $9,345,466 | 894,303 | Jain Global LLC | 30 Sep 2025 | |||
| RP Investment Advisors LP | 5% | $8,828,100 | 865,500 | RP Investment Advisors LP | 24 Feb 2026 | |||
| J. Goldman & Co LP | 5% | -20% | $8,797,500 | -$2,199,375 | 862,500 | -20% | J. Goldman & Co LP | 31 Dec 2025 |
As of 31 Dec 2025, 50 institutional investors reported holding 12,053,938 shares of 1RT Acquisition Corp. - Class A ordinary shares, par value $0.0001 per share (ONCH). This represents 70% of the company’s total 17,120,339 outstanding shares.
Top 25 Institutional Shareholders
The largest institutional shareholders of 1RT Acquisition Corp. - Class A ordinary shares, par value $0.0001 per share (ONCH) together control 63% of the company’s outstanding shares — a level of ownership often associated with strong institutional conviction and long‑term capital commitment.
| Institution | Ownership % | Shares Held | Share Change % | Portfolio % | Holdings Value |
|---|---|---|---|---|---|
| METEORA CAPITAL, LLC | 9% | 1,539,014 | +6% | 1.3% | $15,697,943 |
| Harraden Circle Investments, LLC | 8.8% | 1,500,192 | 0% | 2.8% | $15,301,958 |
| Jain Global LLC | 5.2% | 892,221 | 0.09% | $9,100,654 | |
| J. Goldman & Co LP | 5% | 862,500 | 0% | 0.34% | $8,797,500 |
| Saba Capital Management, L.P. | 4.5% | 774,932 | 0% | 0.27% | $7,904,306 |
| MMCAP International Inc. SPC | 3.5% | 600,000 | 0.61% | $6,120,000 | |
| Governors Lane LP | 3.1% | 522,663 | +14% | 0.49% | $5,331,163 |
| Linden Advisors LP | 3% | 510,100 | 0% | 0.03% | $5,203,020 |
| First Trust Capital Management L.P. | 1.8% | 299,996 | 0% | 0.19% | $3,059,959 |
| Verition Fund Management LLC | 1.7% | 292,969 | +15% | 0.02% | $2,988,284 |
| MILLENNIUM MANAGEMENT LLC | 1.5% | 261,952 | 0% | $2,671,910 | |
| WHITEBOX ADVISORS LLC | 1.5% | 260,000 | 0% | 0.05% | $2,652,000 |
| HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND | 1.5% | 250,000 | 0% | $2,550,000 | |
| ExodusPoint Capital Management, LP | 1.5% | 250,000 | 0% | 0.03% | $2,550,000 |
| MOORE CAPITAL MANAGEMENT, LP | 1.5% | 250,000 | 0.05% | $2,550,000 | |
| Context Capital Management, LLC | 1.5% | 250,000 | 0% | 0.07% | $2,550,000 |
| TENOR CAPITAL MANAGEMENT Co., L.P. | 1.5% | 250,000 | 0% | 0.04% | $2,550,000 |
| HBK INVESTMENTS L P | 1.5% | 249,304 | 0% | 0.03% | $2,542,901 |
| Mint Tower Capital Management B.V. | 1.2% | 200,000 | 0.26% | $2,040,000 | |
| Shaolin Capital Management LLC | 1.2% | 200,000 | +151% | 0.08% | $2,040,000 |
| TWO SIGMA INVESTMENTS, LP | 0.88% | 150,624 | 0% | 0% | $1,536,365 |
| Radcliffe Capital Management, L.P. | 0.81% | 139,292 | +128% | 0.08% | $1,420,778 |
| Cable Car Capital, LP | 0.73% | 125,000 | 0.08% | $1,275,000 | |
| DLD Asset Management, LP | 0.64% | 109,331 | 0.12% | $1,115,176 | |
| Magnetar Financial LLC | 0.58% | 100,000 | 0.01% | $1,020,000 |