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.
Holders of 5% or more of ONCH
Holders whose latest Schedule 13D or 13G filing reports 5% or more of 1RT Acquisition Corp., largest stake first. The change is against the holder's previous filing.
| Holder | Latest form | Stake | Change | First filed | Latest filing | Filing |
|---|---|---|---|---|---|---|
| 1RT Acquisition Sponsor LLC | 13G | 20.00%4.31M shares | New | Aug 13, 20251 filing | Aug 13, 2025 | SEC |
| Meteora Capital, LLC | 13G/A | 9.85%1.70M shares | −0.03 ppfrom 9.88% | Feb 13, 20263 filings | Aug 14, 2026 | SEC |
| RP Investment Advisors LP | 13G/A | 6.30%1.08M shares | +1.30 ppfrom 5.00% | Mar 3, 20262 filings | May 15, 2026 | SEC |
| Linden Capital L.P. | 13G | 5.90%1.01M shares | New | Mar 12, 20261 filing | Mar 12, 2026 | SEC |
| Saba Capital Management, L.P. | 13G | 5.33%800.0K shares | New | Jul 7, 20251 filing | Jul 7, 2025 | SEC |
| Jain Global LLC | 13G | 5.20%894.3K shares | New | Nov 14, 20251 filing | Nov 14, 2025 | SEC |
| J. Goldman & Co LP | 13G/A | 5.00%862.5K shares | −1.20 ppfrom 6.20% | Nov 14, 20252 filings | Feb 17, 2026 | SEC |
Stakes are as of each holder's latest filing. Holders whose last filing was in the old format (before December 18, 2024) have no stake on record and are not listed, and after an acquisition or delisting holders usually stop filing.
13D and 13G filings
13 Schedule 13D and 13G filings on 1RT Acquisition Corp., newest first, including old-format filings without a stake.
| Filed (ET) | Filer | Form | Stake | Change | Event date | Filing |
|---|---|---|---|---|---|---|
| Aug 14, 20262:08 PM ET | Meteora Capital, LLC | 13G/A | 9.85%1.70M shares | −0.03 ppfrom 9.88% | Jun 30, 2026 | SEC |
| May 15, 20264:33 PM ET | RP Investment Advisors LPand 4 others | 13G/A | 6.30%1.08M shares | +1.30 ppfrom 5.00% | Mar 31, 2026 | SEC |
| May 15, 20261:28 PM ET | Meteora Capital, LLC | 13G/A | 9.88%1.71M shares | +0.96 ppfrom 8.92% | Mar 31, 2026 | SEC |
| May 14, 20266:00 PM ET | Harraden Circle Investments, LLCand 7 others | 13G/A | 0.00%0 shares | −8.70 ppfrom 8.70%Below 5% | Mar 31, 2026 | SEC |
| Mar 12, 202610:08 AM ET | Linden Capital L.P.and 3 others | 13G | 5.90%1.01M shares | New | Mar 5, 2026 | SEC |
| Mar 3, 202612:02 PM ET | RP Investment Advisors LPand 4 others | 13G | 5.00%865.5K shares | New | Feb 24, 2026 | SEC |
| Feb 17, 20269:00 AM ET | J. Goldman & Co LPand 2 others | 13G/A | 5.00%862.5K shares | −1.20 ppfrom 6.20% | Dec 31, 2025 | SEC |
| Feb 13, 20263:15 PM ET | Meteora Capital, LLC | 13G | 8.92%1.54M shares | New | Dec 31, 2025 | SEC |
| Nov 14, 20254:19 PM ET | Jain Global LLCand 2 others | 13G | 5.20%894.3K shares | New | Sep 30, 2025 | SEC |
| Nov 14, 20252:28 PM ET | J. Goldman & Co LPand 2 others | 13G | 6.20%1.08M shares | New | Sep 30, 2025 | SEC |
| Nov 14, 20259:00 AM ET | Harraden Circle Investments, LLCand 7 others | 13G/A | 8.70%1.50M shares | – | Sep 30, 2025 | SEC |
| Aug 13, 20257:33 PM ET | 1RT Acquisition Sponsor LLCand 1 other | 13G | 20.00%4.31M shares | New | Jul 1, 2025 | SEC |
| Jul 7, 20255:26 PM ET | Saba Capital Management, L.P.and 2 others | 13G | 5.33%800.0K shares | New | Jul 2, 2025 | SEC |
Form 144: proposed insider sales
Notices from officers, directors and other affiliates planning to sell 1RT Acquisition Corp. shares.
No Form 144 notices for 1RT Acquisition Corp. are on file.