Iron Horse Acquisition IIIRHOU

13F holders, Q4 2025 (December 31)
61holders
1famous investor
$9.94avg. 13F price*

At the end of Q4 2025, 61 institutions reported holding Iron Horse Acquisition II Co. (IRHOU) in their 13F filings. The largest holders were MMCAP International Inc. SPC ($14.9M), LMR Partners LLP ($14.9M) and Linden Advisors LP ($14.9M). One famous investor held it Israel Englander (0.0% of Millennium Management's portfolio).

Company
Iron Horse Acquisition II Co.
CUSIP
46283H202
Latest filing quarter
Q2 2026

History

Number of 13F holders

020406080 Q4 2025: 61Q4 2025Q1 2026: 22Q1 2026Q2 2026: 10Q2 2026

Total Exit/New Position Q4 2025

InstitutionsTotal Value
New Positions58$222.5M
Exits0$0

Ownership 61 holders

MMCAP International Inc. SPC 1.52% New 1,500,000 $14.9M
LMR Partners LLP 0.19% New 1,500,000 $14.9M
Linden Advisors LP 1.13% New 1,500,000 $14.9M
Magnetar Financial LLC 0.16% New 1,500,000 $14.9M
AQR Arbitrage LLC 0.26% New 973,608 $9.7M
Picton Mahoney Asset Management 0.10% New 900,000 $9.0M
Polar Asset Management Partners Inc. 0.20% New 800,000 $8.0M
Wealthspring Capital LLC 1.77% New 739,040 $7.3M
CSS LLC 1.23% New 738,100 $7.3M
Radcliffe Capital Management, L.P. 0.85% New 603,644 $6.0M
Healthcare of Ontario Pension Plan Trust Fund 0.01% New 602,165 $6.0M
First Trust Capital Management L.P. 0.36% New 600,000 $6.0M
UBS Group AG 0.00% New 563,000 $5.6M
TENOR CAPITAL MANAGEMENT Co., L.P. 0.46% New 547,508 $5.4M
BNP Paribas Financial Markets 0.00% New 526,392 $5.2M
HGC Investment Management Inc. 1.11% New 523,489 $5.2M
Meteora Capital, LLC 0.41% New 484,600 $4.8M
Heights Capital Management, Inc. 1.79% New 470,000 $4.7M
Sculptor Capital LP 0.09% New 446,397 $4.4M
Context Capital Management, LLC 1.32% New 400,000 $4.0M
TIG Advisors, LLC 0.19% New 400,000 $4.0M
Saba Capital Management, L.P. 0.14% New 400,000 $4.0M
Ilex Capital Partners (UK) LLP 0.11% New 400,000 $4.0M
OMERS ADMINISTRATION Corp 0.03% New 400,000 $4.0M
Hudson Bay Capital Management LP 0.02% New 379,148 $3.8M
Two Sigma Investments, LP 0.01% New 362,500 $3.6M
Whitebox Advisors LLC 0.22% New 350,000 $3.5M
Millennium Management 0.00% New 300,000 $3.0M
KRYGER CAPITAL Ltd 0.21% New 274,443 $2.7M
Shaolin Capital Management LLC 0.33% New 250,000 $2.5M
Mint Tower Capital Management B.V. 0.78% New 250,000 $2.5M
Alberta Investment Management Corp 0.02% New 250,000 $2.5M
Berkley W R Corp. 0.14% New 247,850 $2.5M
Glazer Capital, LLC 0.06% New 207,234 $2.1M
Commonwealth of Pennsylvania Public School Empls Retrmt SYS 0.01% New 200,000 $2.0M
Wolverine Asset Management LLC 0.12% New 199,900 $2.0M
BlueCrest Capital Management Ltd 0.07% New 175,000 $1.7M
Yakira Capital Management, Inc. 0.51% New 150,000 $1.5M
Westchester Capital Management, LLC 0.07% New 150,000 $1.5M
HRT Financial LP 0.00% New 127,494 $1.3M
Syquant Capital Sas 0.15% New 125,000 $1.2M
Mangrove Partners Im, LLC 0.09% New 111,156 $1.1M
L1 Global Manager Pty Ltd 0.65% — 100,000 $995K
Moore Capital Management, LP 0.02% New 100,000 $995K
OCONNOR, A Distinct Business Unit of UBS ASSET MANAGEMENT AMERICAS (LLC) 0.03% New 100,000 $994K
Periscope Capital Inc. 0.18% New 88,000 $875K
Brevan Howard Capital Management LP 0.02% New 81,323 $809K
Clear Street Group Inc. 0.00% New 52,495 $522K
Stoic Point Capital Management LLC 0.42% — 50,000 $497K
Prelude Capital Management, LLC 0.04% New 50,000 $497K
Rivernorth Capital Management, LLC 0.02% New 50,000 $497K
Royal Bank of Canada 0.00% New 50,000 $497K
Virtu Financial LLC 0.02% New 42,245 $420K
ExodusPoint Capital Management, LP 0.00% New 36,628 $364K
Jane Street Group, LLC 0.00% New 34,136 $339K
Tuttle Capital Management, LLC 0.55% New 25,000 $249K
Deltec Asset Management LLC 0.04% New 25,000 $249K
Lineage Point Capital LP 0.06% — 16,600 $165K
Susquehanna International Group, LLP 0.00% New 10,791 $107K
PenderFund Capital Management Ltd. 0.02% New 5,000 $50K
FNY Investment Advisers, LLC 0.00% New 200 $1K

"% of holder's portfolio" is IRHOU's weight in each manager's 13F, not the share of Iron Horse Acquisition II Co. the manager owns.