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Disclosery

ONCH 1RT ACQUISITION CORP.

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USD CL A ORD SHS (common), issuer CIK 2054272

36 managers (36 13F filers) reported a position in ONCH shares at 2025-09-30, 8,617,697 shares in all. 35 filers opened a position and 0 filers sold out during the quarter.

Managers
36
13F filers
36
New
35
Added
0
Reduced
0
Sold out
0
Shares held by filers
8,617,697

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, Q3 2025

Filers in the available 13F reports with a share position at 2025-09-30, 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
Harraden Circle Investments, LLCin group Harraden Circle Investments, …1,500,192$15.7M3.05%new13F-HRTimelineGroup
Meteora Capital, LLC1,452,022$15.2M1.61%new13F-HRTimeline
J. Goldman & Co LP862,500$9.01M0.34%new13F-HRTimeline
Saba Capital Management, L.P.in group Saba Capital Management, L.P.774,932$8.1M0.27%new13F-HRTimelineGroup
Linden Advisors LPin group Linden Advisors LP510,100$5.33M0.04%new13F-HRTimelineGroup
Governors Lane LP458,555$4.79M0.66%new13F-HRTimeline
First Trust Capital Management L.P.in group FIRST TRUST ADVISORS LP299,996$3.13M0.2%new13F-HRTimelineGroup
WHITEBOX ADVISORS LLC260,000$2.72M0.05%new13F-HRTimeline
Verition Fund Management LLC255,830$2.67M0.02%new13F-HRTimeline
Context Capital Management, LLC250,000$2.61M0.08%new13F-HRTimeline
TENOR CAPITAL MANAGEMENT Co., L.P.250,000$2.61M0.03%new13F-HRTimeline
ExodusPoint Capital Management, LP250,000$2.61M0.04%new13F-HRTimeline
HBK INVESTMENTS L P249,304$2.61M0.04%new13F-HRTimeline
TWO SIGMA INVESTMENTS, LPin group TWO SIGMA INVESTMENTS, LP150,624$1.57M<0.01%new13F-HRTimelineGroup
ARISTEIA CAPITAL, L.L.C.100,000$1.04M0.03%new13F-HRTimeline
OCONNOR, A Distinct Business Unit of UB…100,000$1.04M0.03%new13F-HR/ATimelineThe filing omitted confidential holdings, a later amendment may add them.
K2 PRINCIPAL FUND, L.P.100,000$1.04M0.11%new13F-HRTimeline
PICTON MAHONEY ASSET MANAGEMENT100,000$1.04M0.01%new13F-HRTimeline
Shaolin Capital Management LLC79,759$833K0.04%new13F-HRTimeline
Periscope Capital Inc.79,600$832K0.2%new13F-HRTimeline
AQR Arbitrage LLCin group AQR CAPITAL MANAGEMENT LLC75,932$793K0.02%new13F-HRTimelineGroup
BERKLEY W R CORP74,416$778K0.05%new13F-HRTimeline
Radcliffe Capital Management, L.P.61,223$640K0.04%new13F-HRTimeline
JPMORGAN CHASE & COin group JPMORGAN CHASE & CO53,152$555K<0.01%new13F-HR/ATimelineGroup
GRITSTONE ASSET MANAGEMENT LLC49,433$517K0.53%new13F-HRTimeline
RIVERNORTH CAPITAL MANAGEMENT, LLC44,016$460K0.03%new13F-HRTimeline
BOOTHBAY FUND MANAGEMENT, LLC42,933$449K0.01%new13F-HRTimeline
Hudson Bay Capital Management LPin group Hudson Bay Capital Management…25,000$261K<0.01%new13F-HR/ATimelineGroup
Davidson Kempner Capital Management LP25,000$261K<0.01%new13F-HRTimelineThe filing omitted confidential holdings, a later amendment may add them.
BNP PARIBAS FINANCIAL MARKETSin group BNP PARIBAS FINANCIAL MARKETS24,060$251K<0.01%new13F-HRTimelineGroup
Clear Street Group Inc.in group Clear Street Group Inc.13,560$142K<0.01%13F-HRTimelineGroup
CITADEL ADVISORS LLCin group CITADEL ADVISORS LLC10,658$111K<0.01%new13F-HRTimelineGroup
D. E. Shaw & Co., Inc.in group D. E. Shaw & Co., Inc.10,000$104K<0.01%new13F-HRTimelineGroup
COMMONWEALTH OF PENNSYLVANIA PUBLIC SCH…10,000$104K<0.01%new13F-HRTimeline
Centiva Capital, LP10,000$104K0.01%new13F-HRTimeline
TORONTO DOMINION BANKin group TORONTO DOMINION BANK4,900$51.2K<0.01%new13F-HRTimelineGroup