Latest Period
Q1 2026
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
57
Shares (Excl. Options)
11,784,052
Price
$10.14
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- Security type / class
- Equity / Class A ordinary shares, par value $0.0001 per share
- Symbol
- ONCH on Nasdaq
- All holders as of 31 Mar 2026
- Q1 2026
- Total 13F shares
- 11,784,052
- Total 13F value
- $119,511,071
- Portfolio coverage rank
- 0%
- Share change
- -322,953
- Value change
- -$3,378,480
- Number of holders
- 57
- Shares outstanding
- 17,157,238
- SEC-reported price per share
- $10.14
Latest holder snapshot
5 signals
Issuer context
Names, identifiers, and filing context for this profile.
2 identity fields
13F Shares, Excluding Options vs Price
13F Value, Excluding Options
Total Investors
Key facts
- ONCH - 1RT Acquisition Corp. - Class A ordinary shares, par value $0.0001 per share is tracked under CUSIP G6757R105.
- 57 institutions reported positions in Q1 2026.
- 7 significant owners is listed from Schedule 13D/13G reporting.
Change
- Holder count moved from 50 to 57 between Q4 2025 and Q1 2026.
- SEC-reported value moved from $122,950,228 to $119,511,071.
Research use
- 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.
Evidence
Source: SEC Form 13F
Open SEC evidence
Latest holder context comes from 57 institutions filings for Q1 2026.
Security key
G6757R105
Latest holder period
Q1 2026
13F holders
57
13D/G owners
7
CIK / CUSIP context first
Open Q1 2026 holders
ONCH full holder history
1RT Acquisition Corp. SEC filings
1RT Acquisition Corp. company facts
1RT Acquisition Corp. insider transactions
Broader feeds
Recent Quarterly Holder Reports
Open recent reporting periods for CUSIP G6757R105:
13D/G owners
Significant owners
Large-stake holder rows connected to Schedule 13D/G evidence.
Rows
7
Security
ONCH
| 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 | |||
| RP Investment Advisors LP | 6.3% | +26% | $10,960,387 | +$2,184,217 | 1,080,906 | +25% | RP Investment Advisors LP | 31 Mar 2026 |
| 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 | |||
| 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 Mar 2026, 57 institutional investors reported holding 11,784,052 shares of 1RT Acquisition Corp. - Class A ordinary shares, par value $0.0001 per share (ONCH). This represents 69% of the company’s total 17,157,238 outstanding shares.
13F concentration
Top 25 institutional shareholders
Largest 13F positions for this security by reported shares and value.
Top holder share
60%
| Institution | Ownership % | Shares Held | Share Change % | Portfolio % | Holdings Value |
|---|---|---|---|---|---|
| METEORA CAPITAL, LLC | 9.9% | 1,705,014 | +11% | 1.3% | $17,288,842 |
| Linden Advisors LP | 5.9% | 1,010,100 | +98% | 0.06% | $10,242,414 |
| Jain Global LLC | 5.2% | 891,221 | -0.11% | 0.12% | $9,036,981 |
| Governors Lane LP | 4.4% | 750,000 | +43% | 0.95% | $7,612,500 |
| J. Goldman & Co LP | 4.1% | 700,000 | -19% | 0.33% | $7,098,000 |
| MMCAP International Inc. SPC | 3.5% | 600,000 | 0% | 0.53% | $6,084,000 |
| Saba Capital Management, L.P. | 3.1% | 524,932 | -32% | 0.17% | $5,328,060 |
| Radcliffe Capital Management, L.P. | 2.2% | 385,436 | +177% | 0.3% | $3,912,175 |
| Verition Fund Management LLC | 2% | 345,235 | +18% | 0.03% | $3,500,683 |
| First Trust Capital Management L.P. | 1.7% | 299,996 | 0% | 0.16% | $3,041,959 |
| MILLENNIUM MANAGEMENT LLC | 1.7% | 293,160 | +12% | 0% | $2,972,642 |
| WHITEBOX ADVISORS LLC | 1.5% | 260,000 | 0% | 0.04% | $2,636,400 |
| MOORE CAPITAL MANAGEMENT, LP | 1.5% | 250,000 | 0% | 0.09% | $2,535,000 |
| Context Capital Management, LLC | 1.5% | 250,000 | 0% | 0.06% | $2,537,500 |
| TENOR CAPITAL MANAGEMENT Co., L.P. | 1.5% | 250,000 | 0% | 0.04% | $2,535,000 |
| HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND | 1.5% | 250,000 | 0% | 0% | $2,535,000 |
| HBK INVESTMENTS L P | 1.5% | 249,304 | 0% | 0.03% | $2,527,943 |
| Mint Tower Capital Management B.V. | 1.2% | 200,000 | 0% | 0.19% | $2,028,000 |
| SONA ASSET MANAGEMENT (US) LLC | 0.94% | 161,200 | 0.06% | $1,634,568 | |
| Shaolin Capital Management LLC | 0.92% | 158,656 | -21% | 0.13% | $1,608,772 |
| WOLVERINE ASSET MANAGEMENT LLC | 0.9% | 154,248 | 0.02% | $1,564,075 | |
| Periscope Capital Inc. | 0.9% | 153,962 | +93% | 0.27% | $1,562,714 |
| TWO SIGMA INVESTMENTS, LP | 0.88% | 150,624 | 0% | 0% | $1,527,327 |
| Cable Car Capital, LP | 0.73% | 125,000 | 0% | 0.44% | $1,267,500 |
| DLD Asset Management, LP | 0.64% | 109,331 | 0% | 0.11% | $1,108,616 |
Quarter history
Institutional holders across reporting periods
Holder count, reported shares/value, and median price by quarter.
Periods
3
Latest
Q1 2026
Rows shown
1-3 of 3