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, Q4 2025
Institutional positions in Iron Horse Acquisition II Corp. as of Dec 31, 2025. 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
- 61
- +61 vs. Q3 2025
- Shares held
- 22.5M
- +22.5M vs. Q3 2025
- Total value
- $224.2M
- +$224.2M vs. Q3 2025
- New holders
- 61
- 0 more added
- Sold out
- 0
- 0 more reduced
Compare with Q3 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, Q4 2025
Shares, value and share of portfolio for each institution holding Iron Horse Acquisition II Corp.; share changes are against Q3 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| MMCAP International Inc. SPC | 1,500,000 | $14.9M | 1.49% | +1,500,000 | New |
| LMR Partners LLP | 1,500,000 | $14.9M | 0.14% | +1,500,000 | New |
| Linden Advisors LP | 1,500,000 | $14.9M | 0.09% | +1,500,000 | New |
| Magnetar Financial LLC | 1,500,000 | $14.9M | 0.15% | +1,500,000 | New |
| CNH Partners LLC | 973,608 | $9.68M | 0.20% | +973,608 | New |
| Picton Mahoney Asset Management | 900,000 | $8.95M | 0.10% | +900,000 | New |
| Polar Asset Management Partners Inc. | 800,000 | $7.96M | 0.16% | +800,000 | New |
| Wealthspring Capital LLC | 739,040 | $7.35M | 1.74% | +739,040 | New |
| CSS LLC | 738,100 | $7.34M | 0.42% | +738,100 | New |
| Radcliffe Capital Management, L.P. | 603,644 | $6.00M | 0.33% | +603,644 | New |
| Healthcare of Ontario Pension Plan Trust Fund | 602,165 | $5.99M | 0.01% | +602,165 | New |
| Vivaldi Asset Management, LLC | 600,000 | $5.97M | 0.36% | +600,000 | New |
| UBS Group AG | 563,000 | $5.60M | 0.00% | +563,000 | New |
| Tenor Capital Management Co., L.P. | 547,508 | $5.44M | 0.08% | +547,508 | New |
| BNP Paribas Arbitrage, SA | 526,392 | $5.23M | 0.00% | +526,392 | New |
| HGC Investment Management Inc. | 523,489 | $5.21M | 1.10% | +523,489 | New |
| Meteora Capital, LLC | 484,600 | $4.82M | 0.40% | +484,600 | New |
| Heights Capital Management, Inc | 470,000 | $4.67M | 1.77% | +470,000 | New |
| Sculptor Capital LP | 446,397 | $4.44M | 0.05% | +446,397 | New |
| Context Capital Management, LLC | 400,000 | $3.98M | 0.10% | +400,000 | New |
| TIG Advisors, LLC | 400,000 | $3.98M | 0.19% | +400,000 | New |
| Saba Capital Management, L.P. | 400,000 | $3.98M | 0.13% | +400,000 | New |
| Ilex Capital Partners (UK) LLP | 400,000 | $3.98M | 0.11% | +400,000 | New |
| Omers Administration Corp | 400,000 | $3.98M | 0.03% | +400,000 | New |
| Hudson Bay Capital Management LP | 379,148 | $3.77M | 0.02% | +379,148 | New |
| Two Sigma Investments, LP | 362,500 | $3.61M | 0.01% | +362,500 | New |
| Whitebox Advisors LLC | 350,000 | $3.48M | 0.06% | +350,000 | New |
| Millennium Management LLC | 300,000 | $2.98M | 0.00% | +300,000 | New |
| Omni Event Management Ltd | 274,443 | $2.73M | 0.21% | +274,443 | New |
| Shaolin Capital Management LLC | 250,000 | $2.49M | 0.09% | +250,000 | New |
| Mint Tower Capital Management B.V. | 250,000 | $2.49M | 0.32% | +250,000 | New |
| Alberta Investment Management Corp | 250,000 | $2.48M | 0.01% | +250,000 | New |
| Berkley W R Corp | 247,850 | $2.46M | 0.14% | +247,850 | New |
| Glazer Capital, LLC | 207,234 | $2.06M | 0.05% | +207,234 | New |
| Commonwealth of Pennsylvania Public School Empls Retrmt Sys | 200,000 | $1.99M | 0.01% | +200,000 | New |
| Wolverine Asset Management LLC | 199,900 | $1.99M | 0.03% | +199,900 | New |
| BlueCrest Capital Management Ltd | 175,000 | $1.74M | 0.07% | +175,000 | New |
| Yakira Capital Management, Inc. | 150,000 | $1.49M | 0.50% | +150,000 | New |
| Westchester Capital Management, LLC | 150,000 | $1.49M | 0.07% | +150,000 | New |
| HRT Financial LP | 127,494 | $1.27M | 0.00% | +127,494 | New |
| Syquant Capital SAS | 125,000 | $1.24M | 0.15% | +125,000 | New |
| Mangrove Partners | 111,156 | $1.11M | 0.09% | +111,156 | New |
| Moore Capital Management, LP | 100,000 | $994.5K | 0.02% | +100,000 | New |
| L1 Global Manager Pty Ltd | 100,000 | $994.5K | 0.65% | +100,000 | New |
| UBS Oconnor LLC | 100,000 | $994.0K | 0.03% | +100,000 | New |
| Periscope Capital Inc. | 88,000 | $875.2K | 0.17% | +88,000 | New |
| Brevan Howard Capital Management LP | 81,323 | $809.2K | 0.02% | +81,323 | New |
| Clear Street Group Inc. | 52,495 | $522.1K | 0.00% | +52,495 | New |
| Prelude Capital Management, LLC | 50,000 | $497.3K | 0.04% | +50,000 | New |
| Rivernorth Capital Management, LLC | 50,000 | $497.3K | 0.02% | +50,000 | New |
| Stoic Point Capital Management LLC | 50,000 | $497.3K | 0.42% | +50,000 | New |
| Royal Bank of Canada | 50,000 | $497.0K | 0.00% | +50,000 | New |
| Virtu Financial LLC | 42,245 | $420.0K | 0.02% | +42,245 | New |
| ExodusPoint Capital Management, LP | 36,628 | $364.3K | 0.00% | +36,628 | New |
| Jane Street Group, LLC | 34,136 | $339.5K | 0.00% | +34,136 | New |
| Deltec Asset Management LLC | 25,000 | $248.6K | 0.04% | +25,000 | New |
| Tuttle Tactical Management | 25,000 | $248.6K | 0.55% | +25,000 | New |
| Lineage Point Capital LP | 16,600 | $165.1K | 0.06% | +16,600 | New |
| Susquehanna International Group, LLP | 10,791 | $107.3K | 0.00% | +10,791 | New |
| PenderFund Capital Management Ltd. | 5,000 | $49.7K | 0.01% | +5,000 | New |
| FNY Investment Advisers, LLC | 200 | $1.00K | 0.00% | +200 | New |