Iron Horse Acquisition II Corp.

IRHOU

Exchange: Nasdaq
Industry: Services-Business Services, NEC
SEC CIK: 0002051985

SEC filings (opens in a new tab)

No open-market purchases or sales by Iron Horse Acquisition II Corp. insiders were filed in the last 90 days; 10 institutions reported holding it in 13F filings for Q2 2026, worth $27.0M in total; no superinvestor holds it.

Other share classesIRHO IRHOR

Q4 2025 vs. Q3 2025

How the institutions holding Iron Horse Acquisition II Corp. changed between Q3 2025 and Q4 2025.

All holders in Q4 2025 All holders in Q3 2025

13F holders of IRHOU: Q3 2025 compared with Q4 2025
Measure	Q3 2025	Q4 2025	Change
Holders	0	61	+61
Shares	0	22.5M	+22.5M
Value	$0	$224.2M	+$224.2M

New holders (61)

Institutions that held Iron Horse Acquisition II Corp. at the end of Q4 2025 but not at the end of Q3 2025.

Institutions new to IRHOU in Q4 2025
Institution	Shares	Value	% of portfolio
MMCAP International Inc. SPC	1,500,000	$14.9M	1.49%
LMR Partners LLP	1,500,000	$14.9M	0.14%
Linden Advisors LP	1,500,000	$14.9M	0.09%
Magnetar Financial LLC	1,500,000	$14.9M	0.15%
CNH Partners LLC	973,608	$9.68M	0.20%
Picton Mahoney Asset Management	900,000	$8.95M	0.10%
Polar Asset Management Partners Inc.	800,000	$7.96M	0.16%
Wealthspring Capital LLC	739,040	$7.35M	1.74%
CSS LLC	738,100	$7.34M	0.42%
Radcliffe Capital Management, L.P.	603,644	$6.00M	0.33%
Healthcare of Ontario Pension Plan Trust Fund	602,165	$5.99M	0.01%
Vivaldi Asset Management, LLC	600,000	$5.97M	0.36%
UBS Group AG	563,000	$5.60M	0.00%
Tenor Capital Management Co., L.P.	547,508	$5.44M	0.08%
BNP Paribas Arbitrage, SA	526,392	$5.23M	0.00%
HGC Investment Management Inc.	523,489	$5.21M	1.10%
Meteora Capital, LLC	484,600	$4.82M	0.40%
Heights Capital Management, Inc	470,000	$4.67M	1.77%
Sculptor Capital LP	446,397	$4.44M	0.05%
Context Capital Management, LLC	400,000	$3.98M	0.10%
TIG Advisors, LLC	400,000	$3.98M	0.19%
Saba Capital Management, L.P.	400,000	$3.98M	0.13%
Ilex Capital Partners (UK) LLP	400,000	$3.98M	0.11%
Omers Administration Corp	400,000	$3.98M	0.03%
Hudson Bay Capital Management LP	379,148	$3.77M	0.02%
Two Sigma Investments, LP	362,500	$3.61M	0.01%
Whitebox Advisors LLC	350,000	$3.48M	0.06%
Millennium Management LLC	300,000	$2.98M	0.00%
Omni Event Management Ltd	274,443	$2.73M	0.21%
Shaolin Capital Management LLC	250,000	$2.49M	0.09%
Mint Tower Capital Management B.V.	250,000	$2.49M	0.32%
Alberta Investment Management Corp	250,000	$2.48M	0.01%
Berkley W R Corp	247,850	$2.46M	0.14%
Glazer Capital, LLC	207,234	$2.06M	0.05%
Commonwealth of Pennsylvania Public School Empls Retrmt Sys	200,000	$1.99M	0.01%
Wolverine Asset Management LLC	199,900	$1.99M	0.03%
BlueCrest Capital Management Ltd	175,000	$1.74M	0.07%
Yakira Capital Management, Inc.	150,000	$1.49M	0.50%
Westchester Capital Management, LLC	150,000	$1.49M	0.07%
HRT Financial LP	127,494	$1.27M	0.00%
Syquant Capital SAS	125,000	$1.24M	0.15%
Mangrove Partners	111,156	$1.11M	0.09%
Moore Capital Management, LP	100,000	$994.5K	0.02%
L1 Global Manager Pty Ltd	100,000	$994.5K	0.65%
UBS Oconnor LLC	100,000	$994.0K	0.03%
Periscope Capital Inc.	88,000	$875.2K	0.17%
Brevan Howard Capital Management LP	81,323	$809.2K	0.02%
Clear Street Group Inc.	52,495	$522.1K	0.00%
Prelude Capital Management, LLC	50,000	$497.3K	0.04%
Rivernorth Capital Management, LLC	50,000	$497.3K	0.02%
Stoic Point Capital Management LLC	50,000	$497.3K	0.42%
Royal Bank of Canada	50,000	$497.0K	0.00%
Virtu Financial LLC	42,245	$420.0K	0.02%
ExodusPoint Capital Management, LP	36,628	$364.3K	0.00%
Jane Street Group, LLC	34,136	$339.5K	0.00%
Deltec Asset Management LLC	25,000	$248.6K	0.04%
Tuttle Tactical Management	25,000	$248.6K	0.55%
Lineage Point Capital LP	16,600	$165.1K	0.06%
Susquehanna International Group, LLP	10,791	$107.3K	0.00%
PenderFund Capital Management Ltd.	5,000	$49.7K	0.01%
FNY Investment Advisers, LLC	200	$1.00K	0.00%

Sold out (0)

Institutions that held Iron Horse Acquisition II Corp. at the end of Q3 2025 and filed for Q4 2025 without it.

None.