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