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1RT Acquisition Corp.

ONCHW
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; 40 institutions reported holding it in 13F filings for Q2 2026, worth $1.50M in total; no superinvestor holds it.

Other share classesONCHONCHU

13F holders, Q4 2025

Institutional positions in 1RT Acquisition Corp. as of Dec 31, 2025. 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
39
+7 vs. Q3 2025
Shares held
2.67M
+29.4K (+1.1%) vs. Q3 2025
Total value
$1.55M
−$408.5K (−20.8%) vs. Q3 2025
New holders
14
6 more added
Sold out
7
1 more reduced

Compare with Q3 2025: new holders, sold out and not filed yet

Holders and value by quarter

Institutions reporting ONCHW 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.

Institutional holdersQ4 2025: 39 institutions
Q1 2021: 0 institutionsQ2 2021: 0 institutionsQ3 2021: 0 institutionsQ4 2021: 0 institutionsQ1 2022: 0 institutionsQ2 2022: 0 institutionsQ3 2022: 0 institutionsQ4 2022: 0 institutionsQ1 2023: 0 institutionsQ2 2023: 0 institutionsQ3 2023: 0 institutionsQ4 2023: 0 institutionsQ1 2024: 0 institutionsQ2 2024: 0 institutionsQ3 2024: 0 institutionsQ4 2024: 0 institutionsQ1 2025: 0 institutionsQ2 2025: 0 institutionsQ3 2025: 32 institutionsQ4 2025: 39 institutionsQ1 2026: 42 institutionsQ2 2026: 40 institutions
Value heldQ4 2025: $1.55M
Q1 2021: $0Q2 2021: $0Q3 2021: $0Q4 2021: $0Q1 2022: $0Q2 2022: $0Q3 2022: $0Q4 2022: $0Q1 2023: $0Q2 2023: $0Q3 2023: $0Q4 2023: $0Q1 2024: $0Q2 2024: $0Q3 2024: $0Q4 2024: $0Q1 2025: $0Q2 2025: $0Q3 2025: $1.96MQ4 2025: $1.55MQ1 2026: $1.21MQ2 2026: $1.50M
Institutions holding ONCHW and their total value by quarter
QuarterHoldersValue
Q2 202640$1.50M
Q1 202642$1.21M
Q4 202539$1.55M
Q3 202532$1.96M
Q2 20250$0
Q1 20250$0
Q4 20240$0
Q3 20240$0
Q2 20240$0
Q1 20240$0
Q4 20230$0
Q3 20230$0
Q2 20230$0
Q1 20230$0
Q4 20220$0
Q3 20220$0
Q2 20220$0
Q1 20220$0
Q4 20210$0
Q3 20210$0
Q2 20210$0
Q1 20210$0

Institutions, Q4 2025

Shares, value and share of portfolio for each institution holding 1RT Acquisition Corp.; share changes are against Q3 2025.

Institutions holding ONCHW in Q4 2025
InstitutionSharesValue% of portfolioChange in sharesAction
Meteora Capital, LLC548,426$318.1K0.03%+182,461+49.9%Added
Harraden Circle Investments, LLC429,348$249.1K0.05%00.0%Unchanged
Saba Capital Management, L.P.199,998$138.0K0.00%00.0%Unchanged
Jain Global LLC223,575$129.7K0.00%+223,575New
Linden Advisors LP127,524$88.0K0.00%00.0%Unchanged
MMCAP International Inc. SPC150,000$87.0K0.01%+150,000New
Governors Lane LP78,927$45.8K0.00%00.0%Unchanged
Whitebox Advisors LLC65,000$37.7K0.00%00.0%Unchanged
HBK Investments L P62,501$36.3K0.00%00.0%Unchanged
Context Capital Management, LLC62,500$36.3K0.00%00.0%Unchanged
Tenor Capital Management Co., L.P.62,500$36.3K0.00%00.0%Unchanged
Moore Capital Management, LP62,500$36.3K0.00%+62,500New
Healthcare of Ontario Pension Plan Trust Fund62,500$36.3K0.00%+62,500New
Shaolin Capital Management LLC56,804$33.0K0.00%+36,866+184.9%Added
Verition Fund Management LLC39,600$23.0K0.00%−33,341−45.7%Reduced
Cable Car Capital LLC31,250$18.1K0.00%+31,250New
Aristeia Capital LLC24,998$17.2K0.00%00.0%Unchanged
DLD Asset Management, LP27,209$15.8K0.00%+27,209New
Clear Street Group Inc.25,913$15.0K0.00%+14,483+126.7%Added
Picton Mahoney Asset Management25,000$14.5K0.00%00.0%Unchanged
Magnetar Financial LLC25,000$14.5K0.00%+25,000New
K2 Principal Fund, L.P.25,000$14.5K0.00%00.0%Unchanged
Rivernorth Capital Management, LLC22,008$12.8K0.00%+11,004+100.0%Added
Toronto Dominion Bank21,500$12.5K0.00%+21,500New
Periscope Capital Inc.19,900$11.5K0.00%00.0%Unchanged
CNH Partners LLC18,983$11.0K0.00%00.0%Unchanged
Berkley W R Corp18,604$10.8K0.00%00.0%Unchanged
Parallax Volatility Advisers, L.P.17,692$10.3K0.00%+17,692New
Radcliffe Capital Management, L.P.14,830$10.2K0.00%00.0%Unchanged
Galaxy Group Investments LLC12,500$7.25K0.00%+12,500New
Quarry LP12,500$7.25K0.00%+12,500New
Gritstone Asset Management LLC12,358$7.17K0.01%00.0%Unchanged
Alberta Investment Management Corp6,250$3.63K0.00%+6,250New
Davidson Kempner Capital Management LP6,249$3.63K0.00%00.0%Unchanged
BNP Paribas Arbitrage, SA6,015$3.49K0.00%00.0%Unchanged
Bank of America Corp4,287$2.49K0.00%+4,187+4,187.0%Added
PenderFund Capital Management Ltd.1,250$7250.00%+1,250New
Boothbay Fund Management, LLC12,022––+1,202+11.1%Added
Mint Tower Capital Management B.V.50,000––+50,000New
Cantor Fitzgerald, L. P.0$00.00%−750,000−100.0%Sold out
Weiss Asset Management LP0$00.00%−63,288−100.0%Sold out
UBS Oconnor LLC0$00.00%−24,800−100.0%Sold out
Fifth Lane Capital, LP0$00.00%−21,851−100.0%Sold out
Citadel Advisors LLC0$00.00%−15,994−100.0%Sold out
Susquehanna International Group, LLP0$00.00%−15,219−100.0%Sold out
Highbridge Capital Management LLC0$00.00%–Sold out