Skip to content
Disclosery

IRHOU IRON HORSE ACQUISIT II CORP

Follow

UNIT 07/11/2030 (unit), issuer CIK 2051985

61 managers (61 13F filers) reported a position in IRHOU shares at 2025-12-31, 22,545,086 shares in all. 58 filers opened a position and 0 filers sold out during the quarter.

Managers
61
13F filers
61
New
58
Added
0
Reduced
0
Sold out
0
Shares held by filers
22,545,086

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
MMCAP International Inc. SPCin group MMCAP1,500,000$14.9M1.49%new13F-HRTimelineGroup
LMR Partners LLPin group LMR Partners LLP1,500,000$14.9M0.14%new13F-HRTimelineGroup
Linden Advisors LPin group Linden Advisors LP1,500,000$14.9M0.09%new13F-HRTimelineGroup
Magnetar Financial LLCin group Magnetar Financial LLC1,500,000$14.9M0.15%new13F-HRTimelineGroup
AQR Arbitrage LLCin group AQR CAPITAL MANAGEMENT LLC973,608$9.68M0.2%new13F-HRTimelineGroup
PICTON MAHONEY ASSET MANAGEMENT900,000$8.95M0.1%new13F-HRTimeline
Polar Asset Management Partners Inc.800,000$7.96M0.16%new13F-HRTimeline
Wealthspring Capital LLCin group Wealthspring Capital LLC739,040$7.35M1.74%new13F-HRTimelineGroup
CSS LLC/IL738,100$7.34M0.41%new13F-HRTimeline
Radcliffe Capital Management, L.P.603,644$6M0.33%new13F-HRTimeline
HEALTHCARE OF ONTARIO PENSION PLAN TRUS…602,165$5.99M0.01%new13F-HRTimeline
First Trust Capital Management L.P.in group FIRST TRUST ADVISORS LP600,000$5.97M0.36%new13F-HRTimelineGroup
UBS Group AGin group UBS Group AG563,000$5.6M<0.01%new13F-HRTimelineGroup
TENOR CAPITAL MANAGEMENT Co., L.P.547,508$5.44M0.08%new13F-HRTimeline
BNP PARIBAS FINANCIAL MARKETSin group BNP PARIBAS FINANCIAL MARKETS526,392$5.23M<0.01%new13F-HRTimelineGroup
HGC Investment Management Inc.523,489$5.21M1.1%new13F-HRTimeline
Meteora Capital, LLC484,600$4.82M0.4%new13F-HRTimeline
HEIGHTS CAPITAL MANAGEMENT, INCin group HEIGHTS CAPITAL MANAGEMENT, I…470,000$4.67M1.77%new13F-HRTimelineGroup
Sculptor Capital LPin group Sculptor Capital LP446,397$4.44M0.05%new13F-HRTimelineGroup
Context Capital Management, LLC400,000$3.98M0.1%new13F-HRTimeline
TIG Advisors, LLCin group TIG Advisors, LLC400,000$3.98M0.19%new13F-HRTimelineGroup
Saba Capital Management, L.P.in group Saba Capital Management, L.P.400,000$3.98M0.13%new13F-HRTimelineGroup
Ilex Capital Partners (UK) LLP400,000$3.98M0.11%new13F-HRTimeline
OMERS ADMINISTRATION Corp400,000$3.98M0.03%new13F-HRTimeline
Hudson Bay Capital Management LPin group Hudson Bay Capital Management…379,148$3.77M0.02%new13F-HRTimelineGroup
TWO SIGMA INVESTMENTS, LPin group TWO SIGMA INVESTMENTS, LP362,500$3.61M0.01%new13F-HRTimelineGroup
WHITEBOX ADVISORS LLC350,000$3.48M0.06%new13F-HRTimeline
MILLENNIUM MANAGEMENT LLCin group MILLENNIUM MANAGEMENT LLC300,000$2.98M<0.01%new13F-HRTimelineGroup
KRYGER CAPITAL Ltd274,443$2.73M0.21%new13F-HRTimeline
Shaolin Capital Management LLC250,000$2.49M0.09%new13F-HRTimeline
Mint Tower Capital Management B.V.250,000$2.49M0.3%new13F-HRTimeline
Alberta Investment Management Corp250,000$2.48M0.01%new13F-HR/ATimeline
BERKLEY W R CORP247,850$2.46M0.14%new13F-HRTimeline
GLAZER CAPITAL, LLCin group GLAZER CAPITAL, LLC207,234$2.06M0.05%new13F-HRTimelineGroup
COMMONWEALTH OF PENNSYLVANIA PUBLIC SCH…200,000$1.99M0.01%new13F-HRTimeline
WOLVERINE ASSET MANAGEMENT LLCin group WOLVERINE ASSET MANAGEMENT LLC199,900$1.99M0.03%new13F-HRTimelineGroup
BlueCrest Capital Management Ltd175,000$1.74M0.07%new13F-HRTimeline
Yakira Capital Management, Inc.150,000$1.49M0.5%new13F-HRTimeline
Westchester Capital Management, LLCin group Westchester Capital Managemen…150,000$1.49M0.07%new13F-HRTimelineGroup
HRT FINANCIAL LP127,494$1.27M<0.01%new13F-HRTimeline
SYQUANT CAPITAL SAS125,000$1.24M0.15%new13F-HRTimeline
MANGROVE PARTNERS IM, LLC111,156$1.11M0.09%new13F-HRTimeline
MOORE CAPITAL MANAGEMENT, LP100,000$994K0.02%new13F-HRTimeline
L1 Global Manager Pty Ltd100,000$994K0.65%13F-HRTimeline
OCONNOR, A Distinct Business Unit of UB…100,000$994K0.03%new13F-HRTimelineThe filing omitted confidential holdings, a later amendment may add them.
Periscope Capital Inc.88,000$875K0.17%new13F-HRTimeline
Brevan Howard Capital Management LPin group Brevan Howard Capital Managem…81,323$809K0.02%new13F-HRTimelineGroup
Clear Street Group Inc.in group Clear Street Group Inc.52,495$522K<0.01%new13F-HRTimelineGroup
PRELUDE CAPITAL MANAGEMENT, LLC50,000$497K0.04%new13F-HRTimeline
RIVERNORTH CAPITAL MANAGEMENT, LLC50,000$497K0.02%new13F-HRTimeline
Stoic Point Capital Management LLC50,000$497K0.42%13F-HRTimeline
ROYAL BANK OF CANADAin group ROYAL BANK OF CANADA50,000$497K<0.01%new13F-HRTimelineGroup
Virtu Financial LLCin group Virtu Financial LLC42,245$420K0.02%new13F-HRTimelineGroup
ExodusPoint Capital Management, LP36,628$364K<0.01%new13F-HRTimeline
JANE STREET GROUP, LLCin group JANE STREET GROUP, LLC34,136$339K<0.01%new13F-HRTimelineGroup
DELTEC ASSET MANAGEMENT LLC25,000$249K0.04%new13F-HRTimeline
Tuttle Capital Management, LLC25,000$249K0.55%new13F-HRTimeline
Lineage Point Capital LP16,600$165K0.06%13F-HR/ATimeline
SUSQUEHANNA INTERNATIONAL GROUP, LLPin group SUSQUEHANNA INTERNATIONAL GRO…10,791$107K<0.01%new13F-HRTimelineGroup
PenderFund Capital Management Ltd.5,000$49.7K0.01%new13F-HRTimeline
FNY Investment Advisers, LLC200$1K<0.01%new13F-HRTimeline