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Disclosery

ONCHW 1RT ACQUISITION CORP.

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

40 managers (40 13F filers) reported a position in ONCHW shares at 2026-06-30, 2,942,766 shares in all. 2 filers opened a position and 4 filers sold out during the quarter.

Managers
40
13F filers
40
New
2
Added
5
Reduced
2
Sold out
4
Shares held by filers
2,942,766

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, Q2 2026

Filers in the available 13F reports with a share position at 2026-06-30, 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
Meteora Capital, LLC519,406$264K0.02%-31,25313F-HRTimeline
Harraden Circle Investments, LLC469,973$239K0.03%013F-HRTimeline
BOOTHBAY FUND MANAGEMENT, LLC13,446$138K<0.01%+4913F-HRTimeline
Jain Global LLC223,575$114K<0.01%013F-HRTimeline
Saba Capital Management, L.P.in group Saba Capital Management, L.P.199,997$102K<0.01%-113F-HRTimelineGroup
MMCAP International Inc. SPCin group MMCAP150,000$76.3K0.01%013F-HRTimelineGroup
Linden Advisors LPin group Linden Advisors LP127,524$73.4K<0.01%013F-HRTimelineGroup
Polar Asset Management Partners Inc.129,300$65.8K<0.01%new13F-HRTimeline
Shaolin Capital Management LLC79,140$40.3K<0.01%+22,33613F-HRTimeline
Governors Lane LP78,927$40.2K<0.01%013F-HRTimeline
WHITEBOX ADVISORS LLC65,000$33.1K<0.01%013F-HRTimeline
HBK INVESTMENTS L P62,501$31.9K<0.01%013F-HRTimeline
HEALTHCARE OF ONTARIO PENSION PLAN TRUS…62,500$31.9K<0.01%013F-HRTimeline
Context Capital Management, LLC62,500$31.8K<0.01%013F-HRTimeline
TENOR CAPITAL MANAGEMENT Co., L.P.62,500$31.8K<0.01%013F-HRTimeline
MOORE CAPITAL MANAGEMENT, LP62,500$31.8K<0.01%013F-HRTimeline
Verition Fund Management LLC60,450$30.8K<0.01%013F-HR/ATimeline
HGC Investment Management Inc.50,000$25.4K0.01%013F-HRTimeline
Mint Tower Capital Management B.V.50,000$25K<0.01%013F-HRTimeline
Clear Street Group Inc.in group Clear Street Group Inc.46,633$23.7K<0.01%+27,48413F-HRTimelineGroup
TORONTO DOMINION BANKin group TORONTO DOMINION BANK36,668$18.7K<0.01%+15,16813F-HRTimelineGroup
Parallax Volatility Advisers, L.P.35,165$17.9K<0.01%013F-HRTimeline
Cable Car Capital, LP31,250$15.9K<0.01%013F-HRTimeline
ARISTEIA CAPITAL, L.L.C.24,998$14.4K<0.01%013F-HRTimeline
DLD Asset Management, LP27,209$13.8K<0.01%013F-HRTimeline
Magnetar Financial LLCin group Magnetar Financial LLC25,000$12.8K<0.01%013F-HRTimelineGroup
K2 PRINCIPAL FUND, L.P.25,000$12.8K<0.01%013F-HRTimeline
PICTON MAHONEY ASSET MANAGEMENT25,000$12.7K<0.01%013F-HRTimeline
RIVERNORTH CAPITAL MANAGEMENT, LLC22,008$11.3K<0.01%013F-HRTimeline
Periscope Capital Inc.19,900$10.1K<0.01%013F-HRTimeline
AQR Arbitrage LLCin group AQR CAPITAL MANAGEMENT LLC19,232$9.79K<0.01%+17113F-HRTimelineGroup
Radcliffe Capital Management, L.P.14,830$8.53K<0.01%013F-HRTimeline
Galaxy Digital Inc.in group Galaxy Group Investments LLC12,500$6.36K<0.01%013F-HRTimelineGroup
GRITSTONE ASSET MANAGEMENT LLC12,358$6.29K0.01%013F-HRTimeline
SUSQUEHANNA INTERNATIONAL GROUP, LLPin group SUSQUEHANNA INTERNATIONAL GRO…11,060$5.64K<0.01%new13F-HRTimelineGroup
Alberta Investment Management Corp6,250$3.18K<0.01%013F-HRTimeline
Davidson Kempner Capital Management LP6,249$3.18K<0.01%013F-HRTimelineThe filing omitted confidential holdings, a later amendment may add them.
BNP PARIBAS FINANCIAL MARKETSin group BNP PARIBAS FINANCIAL MARKETS6,015$3.06K<0.01%013F-HRTimelineGroup
Kepos Capital LPin group Kepos Capital LP5,875$3K<0.01%013F-HRTimelineGroup
UBS Group AGin group UBS Group AG327$166<0.01%013F-HRTimelineGroup