Iron Horse Acquisition II Corp.
IRHOU- Exchange
- Nasdaq
- Industry
- Services-Business Services, NEC
- SEC CIK
- 0002051985
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.
13F holders, Q1 2026
Institutional positions in Iron Horse Acquisition II Corp. as of Mar 31, 2026. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 22
- −37 vs. Q4 2025
- Shares held
- 7.06M
- −15.1M (−68.2%) vs. Q4 2025
- Total value
- $70.3M
- −$150.2M (−68.1%) vs. Q4 2025
- New holders
- 3
- 3 more added
- Sold out
- 40
- 4 more reduced
2 institutions that held it in Q4 2025 haven't filed for Q1 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 2025: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting IRHOU on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 10 | $27.0M |
| Q1 2026 | 22 | $70.3M |
| Q4 2025 | 61 | $224.2M |
| Q3 2025 | 0 | $0 |
| Q2 2025 | 0 | $0 |
| Q1 2025 | 0 | $0 |
| Q4 2024 | 0 | $0 |
| Q3 2024 | 0 | $0 |
| Q2 2024 | 0 | $0 |
| Q1 2024 | 0 | $0 |
| Q4 2023 | 0 | $0 |
| Q3 2023 | 0 | $0 |
| Q2 2023 | 0 | $0 |
| Q1 2023 | 0 | $0 |
| Q4 2022 | 0 | $0 |
| Q3 2022 | 0 | $0 |
| Q2 2022 | 0 | $0 |
| Q1 2022 | 0 | $0 |
| Q4 2021 | 0 | $0 |
| Q3 2021 | 0 | $0 |
| Q2 2021 | 0 | $0 |
| Q1 2021 | 0 | $0 |
Institutions, Q1 2026
Shares, value and share of portfolio for each institution holding Iron Horse Acquisition II Corp.; share changes are against Q4 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| MMCAP International Inc. SPC | 1,500,000 | $14.9M | 1.29% | 00.0% | Unchanged |
| LMR Partners LLP | 1,500,000 | $14.9M | 0.14% | 00.0% | Unchanged |
| Wealthspring Capital LLC | 737,680 | $7.35M | 1.74% | −1,360−0.2% | Reduced |
| Healthcare of Ontario Pension Plan Trust Fund | 602,165 | $6.00M | 0.01% | 00.0% | Unchanged |
| HGC Investment Management Inc. | 523,489 | $5.21M | 1.16% | 00.0% | Unchanged |
| TIG Advisors, LLC | 400,000 | $3.98M | 0.19% | 00.0% | Unchanged |
| Omers Administration Corp | 400,000 | $3.98M | 0.03% | 00.0% | Unchanged |
| Millennium Management LLC | 300,161 | $2.99M | 0.00% | +161+0.1% | Added |
| BlueCrest Capital Management Ltd | 175,000 | $1.74M | 0.16% | 00.0% | Unchanged |
| Westchester Capital Management, LLC | 150,000 | $1.49M | 0.07% | 00.0% | Unchanged |
| Yakira Capital Management, Inc. | 146,907 | $1.46M | 0.43% | −3,093−2.1% | Reduced |
| Syquant Capital SAS | 125,000 | $1.25M | 0.19% | 00.0% | Unchanged |
| HRT Financial LP | 110,858 | $1.10M | 0.00% | −16,636−13.0% | Reduced |
| O'Connor Alternative Investments LLC | 100,000 | $996.0K | 0.05% | +100,000 | New |
| Prelude Capital Management, LLC | 55,000 | $547.8K | 0.04% | +5,000+10.0% | Added |
| Stoic Point Capital Management LLC | 55,000 | $547.8K | 0.54% | +5,000+10.0% | Added |
| Toronto Dominion Bank | 50,000 | $498.0K | 0.00% | +50,000 | New |
| Clear Street Group Inc. | 45,291 | $451.1K | 0.00% | −7,204−13.7% | Reduced |
| Kepos Capital LP | 40,000 | $398.0K | 0.65% | +40,000 | New |
| Tuttle Tactical Management | 25,000 | $249.0K | 0.41% | 00.0% | Unchanged |
| Lineage Point Capital LP | 16,600 | $165.3K | 0.04% | 00.0% | Unchanged |
| FNY Investment Advisers, LLC | 200 | $1.00K | 0.00% | 00.0% | Unchanged |
| Linden Advisors LP | 0 | $0 | 0.00% | −1,500,000−100.0% | Sold out |
| Magnetar Financial LLC | 0 | $0 | 0.00% | −1,500,000−100.0% | Sold out |
| CNH Partners LLC | 0 | $0 | 0.00% | −973,608−100.0% | Sold out |
| Picton Mahoney Asset Management | 0 | $0 | 0.00% | −900,000−100.0% | Sold out |
| Polar Asset Management Partners Inc. | 0 | $0 | 0.00% | −800,000−100.0% | Sold out |
| CSS LLC | 0 | $0 | 0.00% | −738,100−100.0% | Sold out |
| Radcliffe Capital Management, L.P. | 0 | $0 | 0.00% | −603,644−100.0% | Sold out |
| Vivaldi Asset Management, LLC | 0 | $0 | 0.00% | −600,000−100.0% | Sold out |
| UBS Group AG | 0 | $0 | 0.00% | −563,000−100.0% | Sold out |
| Tenor Capital Management Co., L.P. | 0 | $0 | 0.00% | −547,508−100.0% | Sold out |
| BNP Paribas Arbitrage, SA | 0 | $0 | 0.00% | −526,392−100.0% | Sold out |
| Meteora Capital, LLC | 0 | $0 | 0.00% | −484,600−100.0% | Sold out |
| Heights Capital Management, Inc | 0 | $0 | 0.00% | −470,000−100.0% | Sold out |
| Sculptor Capital LP | 0 | $0 | 0.00% | −446,397−100.0% | Sold out |
| Context Capital Management, LLC | 0 | $0 | 0.00% | −400,000−100.0% | Sold out |
| Saba Capital Management, L.P. | 0 | $0 | 0.00% | −400,000−100.0% | Sold out |
| Ilex Capital Partners (UK) LLP | 0 | $0 | 0.00% | −400,000−100.0% | Sold out |
| Hudson Bay Capital Management LP | 0 | $0 | 0.00% | −379,148−100.0% | Sold out |
| Two Sigma Investments, LP | 0 | $0 | 0.00% | −362,500−100.0% | Sold out |
| Whitebox Advisors LLC | 0 | $0 | 0.00% | −350,000−100.0% | Sold out |
| Shaolin Capital Management LLC | 0 | $0 | 0.00% | −250,000−100.0% | Sold out |
| Mint Tower Capital Management B.V. | 0 | $0 | 0.00% | −250,000−100.0% | Sold out |
| Alberta Investment Management Corp | 0 | $0 | 0.00% | −250,000−100.0% | Sold out |
| Berkley W R Corp | 0 | $0 | 0.00% | −247,850−100.0% | Sold out |
| Glazer Capital, LLC | 0 | $0 | 0.00% | −207,234−100.0% | Sold out |
| Commonwealth of Pennsylvania Public School Empls Retrmt Sys | 0 | $0 | 0.00% | −200,000−100.0% | Sold out |
| Wolverine Asset Management LLC | 0 | $0 | 0.00% | −199,900−100.0% | Sold out |
| Mangrove Partners | 0 | $0 | 0.00% | −111,156−100.0% | Sold out |
| Moore Capital Management, LP | 0 | $0 | 0.00% | −100,000−100.0% | Sold out |
| L1 Global Manager Pty Ltd | 0 | $0 | 0.00% | −100,000−100.0% | Sold out |
| Periscope Capital Inc. | 0 | $0 | 0.00% | −88,000−100.0% | Sold out |
| Brevan Howard Capital Management LP | 0 | $0 | 0.00% | −81,323−100.0% | Sold out |
| Rivernorth Capital Management, LLC | 0 | $0 | 0.00% | −50,000−100.0% | Sold out |
| Royal Bank of Canada | 0 | $0 | 0.00% | −50,000−100.0% | Sold out |
| Virtu Financial LLC | 0 | $0 | 0.00% | −42,245−100.0% | Sold out |
| ExodusPoint Capital Management, LP | 0 | $0 | 0.00% | −36,628−100.0% | Sold out |
| Jane Street Group, LLC | 0 | $0 | 0.00% | −34,136−100.0% | Sold out |
| Deltec Asset Management LLC | 0 | $0 | 0.00% | −25,000−100.0% | Sold out |
| Susquehanna International Group, LLP | 0 | $0 | 0.00% | −10,791−100.0% | Sold out |
| PenderFund Capital Management Ltd. | 0 | $0 | 0.00% | −5,000−100.0% | Sold out |
| Omni Event Management Ltd | – | – | – | – | Not filed |
| UBS Oconnor LLC | – | – | – | – | Not filed |