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Disclosery

ONCHW 1RT ACQUISITION CORP.

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*W EXP 06/26/203 (warrant or right), issuer CIK 2054272

39 managers (39 13F filers) reported a position in ONCHW shares at 2025-12-31, 2,673,021 shares in all. 14 filers opened a position and 6 filers sold out during the quarter.

Managers
39
13F filers
39
New
14
Added
6
Reduced
1
Sold out
6
Shares held by filers
2,673,021

Shares held by filers adds up every 13F filer's report, so a share reported by a parent and by its subsidiary counts twice (H9). Managers counts each filer group once.

13D and 13G filers

No 13D or 13G on this security in the data. Structured 13D/G data starts 2024-12-18.

Insider trades

No Form 4 transaction on this security in the data.

13F holders, Q4 2025

Filers in the available 13F reports with a share position at 2025-12-31, filer groups collapsed to one row (method), largest first. Options and principal amounts are left out. A group row states no % of portfolio, since each member reports its own portfolio: the members' percents are listed under it. A value about 1,000 times or 1/1,000 of the price other filers imply is shown as filed but neither ranks the row nor enters a sum.

HolderSharesValue% of portfolioChangeSource
Mint Tower Capital Management B.V.50,000$510K0.06%new13F-HRTimeline
Meteora Capital, LLC548,426$318K0.03%+182,46113F-HRTimeline
Harraden Circle Investments, LLCin group Harraden Circle Investments, …429,348$249K0.05%013F-HRTimelineGroup
Saba Capital Management, L.P.in group Saba Capital Management, L.P.199,998$138K<0.01%013F-HRTimelineGroup
Jain Global LLC223,575$130K<0.01%new13F-HRTimeline
BOOTHBAY FUND MANAGEMENT, LLC12,022$123K<0.01%+1,20213F-HRTimeline
Linden Advisors LPin group Linden Advisors LP127,524$88K<0.01%013F-HRTimelineGroup
MMCAP International Inc. SPCin group MMCAP150,000$87K0.01%new13F-HRTimelineGroup
Governors Lane LP78,927$45.8K<0.01%013F-HRTimeline
WHITEBOX ADVISORS LLC65,000$37.7K<0.01%013F-HRTimeline
HBK INVESTMENTS L P62,501$36.3K<0.01%013F-HRTimeline
Context Capital Management, LLC62,500$36.3K<0.01%013F-HRTimeline
TENOR CAPITAL MANAGEMENT Co., L.P.62,500$36.3K<0.01%013F-HRTimeline
MOORE CAPITAL MANAGEMENT, LP62,500$36.3K<0.01%new13F-HRTimeline
HEALTHCARE OF ONTARIO PENSION PLAN TRUS…62,500$36.3K<0.01%new13F-HRTimeline
Shaolin Capital Management LLC56,804$33K<0.01%+36,86613F-HRTimeline
Verition Fund Management LLC39,600$23K<0.01%-33,34113F-HRTimeline
Cable Car Capital, LP31,250$18.1K<0.01%new13F-HRTimeline
ARISTEIA CAPITAL, L.L.C.24,998$17.2K<0.01%013F-HRTimeline
DLD Asset Management, LP27,209$15.8K<0.01%new13F-HRTimeline
Clear Street Group Inc.in group Clear Street Group Inc.25,913$15K<0.01%+14,48313F-HRTimelineGroup
Magnetar Financial LLCin group Magnetar Financial LLC25,000$14.5K<0.01%new13F-HRTimelineGroup
PICTON MAHONEY ASSET MANAGEMENT25,000$14.5K<0.01%013F-HRTimeline
K2 PRINCIPAL FUND, L.P.25,000$14.5K<0.01%013F-HRTimeline
RIVERNORTH CAPITAL MANAGEMENT, LLC22,008$12.8K<0.01%+11,00413F-HRTimeline
TORONTO DOMINION BANKin group TORONTO DOMINION BANK21,500$12.5K<0.01%new13F-HRTimelineGroup
Periscope Capital Inc.19,900$11.5K<0.01%013F-HRTimeline
AQR Arbitrage LLCin group AQR CAPITAL MANAGEMENT LLC18,983$11K<0.01%013F-HRTimelineGroup
BERKLEY W R CORP18,604$10.8K<0.01%013F-HRTimeline
Parallax Volatility Advisers, L.P.17,692$10.3K<0.01%new13F-HRTimeline
Radcliffe Capital Management, L.P.14,830$10.2K<0.01%013F-HRTimeline
Galaxy Group Investments LLCin group Galaxy Group Investments LLC12,500$7.25K<0.01%new13F-HR/ATimelineGroup
Quarry LP12,500$7.25K<0.01%new13F-HRTimeline
GRITSTONE ASSET MANAGEMENT LLC12,358$7.17K0.01%013F-HRTimeline
Alberta Investment Management Corp6,250$3.63K<0.01%new13F-HR/ATimeline
Davidson Kempner Capital Management LP6,249$3.62K<0.01%013F-HRTimelineThe filing omitted confidential holdings, a later amendment may add them.
BNP PARIBAS FINANCIAL MARKETSin group BNP PARIBAS FINANCIAL MARKETS6,015$3.49K<0.01%013F-HRTimelineGroup
BANK OF AMERICA CORP /DE/in group BANK OF AMERICA CORP /DE/4,287$2.49K<0.01%+4,18713F-HRTimelineGroup
PenderFund Capital Management Ltd.1,250$725<0.01%new13F-HRTimeline