Iron Horse Acquisition II Corp. - IRHO
Detailed investor-level table based on 13F positions.
Methodology:
Market value and % of portfolio use SEC reported VALUE ($000).
For PUT/CALL positions this reflects reported underlying exposure, not premium cash paid/received.
Details.
Rows: 0
| Investor | History | Status | Shares held | Market value ($000) | % of portfolio | Previous % | Rank | Change in shares | % change in shares | Source | Date reported |
|---|---|---|---|---|---|---|---|---|---|---|---|
| MMCAP International Inc. SPC | History | No change | 1,500,000 | 14,940 | 1.29% | 1.49% | 1 | 0 | 0.0% | Q1 2026 | May 15, 2026 |
| LMR Partners LLP | History | No change | 1,500,000 | 14,940 | 0.03% | 0.03% | 2 | 0 | 0.0% | Q1 2026 | May 15, 2026 |
| LINDEN ADVISORS LP | History | No change | 1,500,000 | 14,805 | 0.08% | 0.09% | 3 | 0 | 0.0% | Q1 2026 | May 15, 2026 |
| Magnetar Financial LLC | History | No change | 1,500,000 | 14,790 | 0.15% | 0.15% | 4 | 0 | 0.0% | Q1 2026 | May 13, 2026 |
| AQR Arbitrage LLC | History | Reduced | 927,201 | 9,151 | 0.15% | 0.2% | 5 | -46,407 | -4.77% | Q1 2026 | May 15, 2026 |
| PICTON MAHONEY ASSET MANAGEMENT | History | No change | 900,000 | 8,883 | 0.07% | 0.07% | 6 | 0 | 0.0% | Q1 2026 | May 13, 2026 |
| Polar Asset Management Partners Inc. | History | No change | 800,000 | 7,888 | 0.16% | 0.1% | 7 | 0 | 0.0% | Q1 2026 | May 15, 2026 |
| Wealthspring Capital LLC | History | Reduced | 737,680 | 7,347 | 1.74% | 1.74% | 8 | -1,360 | -0.18% | Q1 2026 | May 01, 2026 |
| CSS LLC/IL | History | Reduced | 737,555 | 7,272 | 0.35% | 0.33% | 9 | -545 | -0.07% | Q1 2026 | May 15, 2026 |
| HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND | History | No change | 602,165 | 5,997 | 0.01% | 0.01% | 10 | 0 | 0.0% | Q1 2026 | May 14, 2026 |
| Radcliffe Capital Management, L.P. | History | Added to | 607,182 | 5,986 | 0.45% | 0.33% | 11 | +3,538 | 0.59% | Q1 2026 | May 15, 2026 |
| First Trust Capital Management L.P. | History | No change | 600,000 | 5,916 | 0.31% | 0.36% | 12 | 0 | 0.0% | Q1 2026 | May 14, 2026 |
| BNP PARIBAS FINANCIAL MARKETS | History | Added to | 580,511 | 5,729 | 0.0% | 0.0% | 13 | +54,119 | 10.28% | Q1 2026 | May 12, 2026 |
| TENOR CAPITAL MANAGEMENT Co., L.P. | History | No change | 547,508 | 5,398 | 0.08% | 0.08% | 14 | 0 | 0.0% | Q1 2026 | May 15, 2026 |
| HGC Investment Management Inc. | History | No change | 523,489 | 5,213 | 1.15% | 1.1% | 15 | 0 | 0.0% | Q1 2026 | May 15, 2026 |
| HEIGHTS CAPITAL MANAGEMENT, INC | History | No change | 470,000 | 4,638 | 1.29% | 1.68% | 16 | 0 | 0.0% | Q1 2026 | May 15, 2026 |
| MANGROVE PARTNERS IM, LLC | History | Added to | 450,000 | 4,437 | 0.36% | 0.09% | 17 | +338,844 | 304.84% | Q1 2026 | May 15, 2026 |
| METEORA CAPITAL, LLC | History | Reduced | 418,813 | 4,129 | 0.3% | 0.4% | 18 | -65,787 | -13.58% | Q1 2026 | May 15, 2026 |
| OMERS ADMINISTRATION Corp | History | No change | 400,000 | 3,984 | 0.03% | 0.03% | 19 | 0 | 0.0% | Q1 2026 | May 15, 2026 |
| TIG Advisors, LLC | History | No change | 400,000 | 3,984 | 0.18% | 0.18% | 20 | 0 | 0.0% | Q1 2026 | May 15, 2026 |
| Context Capital Management, LLC | History | No change | 400,000 | 3,944 | 0.09% | 0.1% | 21 | 0 | 0.0% | Q1 2026 | May 07, 2026 |
| Ilex Capital Partners (UK) LLP | History | No change | 400,000 | 3,944 | 0.1% | 0.11% | 22 | 0 | 0.0% | Q1 2026 | May 15, 2026 |
| Hudson Bay Capital Management LP | History | No change | 379,148 | 3,742 | 0.01% | 0.01% | 23 | 0 | 0.0% | Q1 2026 | May 13, 2026 |
| TWO SIGMA INVESTMENTS, LP | History | No change | 362,500 | 3,574 | 0.0% | 0.01% | 24 | 0 | 0.0% | Q1 2026 | May 15, 2026 |
| WHITEBOX ADVISORS LLC | History | No change | 350,000 | 3,451 | 0.04% | 0.05% | 25 | 0 | 0.0% | Q1 2026 | May 15, 2026 |
| MILLENNIUM MANAGEMENT LLC | History | Added to | 300,161 | 2,989 | 0.0% | 0.0% | 26 | +161 | 0.05% | Q1 2026 | May 15, 2026 |
| Kryger Capital LLC | History | New | 279,792 | 2,758 | 0.2% | — | 27 | +279,792 | New | Q1 2026 | May 14, 2026 |
| KRYGER CAPITAL Ltd | History | No change | 274,443 | 2,729 | 0.21% | 0.21% | 28 | 0 | 0.0% | Q4 2025 | Feb 17, 2026 |
| GLAZER CAPITAL, LLC | History | Added to | 267,754 | 2,640 | 0.06% | 0.05% | 29 | +60,520 | 29.2% | Q1 2026 | May 14, 2026 |
| Alberta Investment Management Corp | History | No change | 250,000 | 2,467 | 0.01% | 0.01% | 30 | 0 | 0.0% | Q1 2026 | Apr 28, 2026 |
| Shaolin Capital Management LLC | History | Added to | 250,101 | 2,465 | 0.09% | 0.08% | 32 | +101 | 0.04% | Q1 2026 | May 15, 2026 |
| Mint Tower Capital Management B.V. | History | No change | 250,000 | 2,465 | 0.22% | 0.29% | 31 | 0 | 0.0% | Q1 2026 | May 04, 2026 |
| Sculptor Capital LP | History | Reduced | 249,938 | 2,464 | 0.03% | 0.05% | 33 | -196,459 | -44.01% | Q1 2026 | May 15, 2026 |
| BERKLEY W R CORP | History | No change | 247,850 | 2,443 | 0.13% | 0.12% | 34 | 0 | 0.0% | Q1 2026 | May 15, 2026 |
| SONA ASSET MANAGEMENT (US) LLC | History | New | 244,139 | 2,407 | 0.05% | — | 35 | +244,139 | New | Q1 2026 | May 15, 2026 |
| WOLVERINE ASSET MANAGEMENT LLC | History | Added to | 201,800 | 1,989 | 0.02% | 0.02% | 36 | +1,900 | 0.95% | Q1 2026 | May 04, 2026 |
| COMMONWEALTH OF PENNSYLVANIA PUBLIC SCHOOL EMPLS RETRMT SYS | History | No change | 200,000 | 1,972 | 0.01% | 0.01% | 37 | 0 | 0.0% | Q1 2026 | May 01, 2026 |
| BlueCrest Capital Management Ltd | History | No change | 175,000 | 1,743 | 0.1% | 0.05% | 38 | 0 | 0.0% | Q1 2026 | May 15, 2026 |
| Clear Street Group Inc. | History | Added to | 159,685 | 1,579 | 0.01% | 0.0% | 39 | +107,190 | 204.19% | Q1 2026 | May 15, 2026 |
| Westchester Capital Management, LLC | History | No change | 150,000 | 1,494 | 0.07% | 0.06% | 40 | 0 | 0.0% | Q1 2026 | May 15, 2026 |
| Yakira Capital Management, Inc. | History | Reduced | 146,907 | 1,463 | 0.43% | 0.5% | 41 | -3,093 | -2.06% | Q1 2026 | May 14, 2026 |
| SYQUANT CAPITAL SAS | History | No change | 125,000 | 1,245 | 0.19% | 0.15% | 42 | 0 | 0.0% | Q1 2026 | Apr 10, 2026 |
| HIGHBRIDGE CAPITAL MANAGEMENT LLC | History | New | 115,454 | 1,138 | 0.04% | — | 43 | +115,454 | New | Q1 2026 | May 15, 2026 |
| HRT FINANCIAL LP | History | Reduced | 110,858 | 1,104 | 0.0% | 0.0% | 44 | -16,636 | -13.05% | Q1 2026 | May 14, 2026 |
| O'Connor Alternative Investments LLC | History | New | 100,000 | 996 | 0.09% | — | 45 | +100,000 | New | Q1 2026 | May 15, 2026 |
| OCONNOR, A Distinct Business Unit of UBS ASSET MANAGEMENT AMERICAS (LLC) | History | No change | 100,000 | 994 | 0.12% | 0.12% | 46 | 0 | 0.0% | Q4 2025 | Feb 13, 2026 |
| MOORE CAPITAL MANAGEMENT, LP | History | No change | 100,000 | 986 | 0.02% | 0.01% | 47 | 0 | 0.0% | Q1 2026 | May 15, 2026 |
| L1 Global Manager Pty Ltd | History | No change | 100,000 | 986 | 0.66% | 0.65% | 48 | 0 | 0.0% | Q1 2026 | May 14, 2026 |
| PERISCOPE CAPITAL INC. | History | No change | 88,000 | 867 | 0.1% | 0.1% | 49 | 0 | 0.0% | Q1 2026 | May 13, 2026 |
| PRELUDE CAPITAL MANAGEMENT, LLC | History | Added to | 55,000 | 547 | 0.04% | 0.04% | 50 | +5,000 | 10.0% | Q1 2026 | May 15, 2026 |
| Stoic Point Capital Management LLC | History | Added to | 55,000 | 547 | 0.53% | 0.42% | 51 | +5,000 | 10.0% | Q1 2026 | May 15, 2026 |
| TORONTO DOMINION BANK | History | New | 50,000 | 498 | 0.0% | — | 52 | +50,000 | New | Q1 2026 | May 15, 2026 |
| RIVERNORTH CAPITAL MANAGEMENT, LLC | History | No change | 50,000 | 493 | 0.02% | 0.02% | 53 | 0 | 0.0% | Q1 2026 | May 15, 2026 |
| Karpus Management, Inc. | History | New | 45,000 | 443 | 0.01% | — | 54 | +45,000 | New | Q1 2026 | May 14, 2026 |
| Kepos Capital LP | History | New | 40,000 | 398 | 0.65% | — | 55 | +40,000 | New | Q1 2026 | May 12, 2026 |
| Tuttle Capital Management, LLC | History | No change | 25,000 | 249 | 0.41% | 0.55% | 56 | 0 | 0.0% | Q1 2026 | May 04, 2026 |
| DELTEC ASSET MANAGEMENT LLC | History | No change | 25,000 | 246 | 0.05% | 0.04% | 57 | 0 | 0.0% | Q1 2026 | Apr 24, 2026 |
| Virtu Financial LLC | History | Reduced | 24,582 | 243 | 0.01% | 0.02% | 58 | -17,663 | -41.81% | Q1 2026 | May 14, 2026 |
| ROYAL BANK OF CANADA | History | Reduced | 21,679 | 214 | 0.0% | 0.0% | 59 | -28,321 | -56.64% | Q1 2026 | May 15, 2026 |
| MIZUHO SECURITIES USA LLC | History | New | 20,974 | 207 | 0.0% | — | 60 | +20,974 | New | Q1 2026 | May 11, 2026 |
| Lineage Point Capital LP | History | No change | 16,600 | 165 | 0.04% | 0.06% | 61 | 0 | 0.0% | Q1 2026 | May 15, 2026 |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | History | Added to | 11,000 | 108 | 0.0% | 0.0% | 62 | +209 | 1.94% | Q1 2026 | May 15, 2026 |
| PenderFund Capital Management Ltd. | History | No change | 5,000 | 49 | 0.01% | 0.01% | 63 | 0 | 0.0% | Q1 2026 | May 15, 2026 |
| UBS Group AG | History | Reduced | 1,205 | 11 | 0.0% | 0.0% | 64 | -561,795 | -99.79% | Q1 2026 | May 05, 2026 |
| FNY Investment Advisers, LLC | History | No change | 200 | 1 | 0.0% | 0.0% | 65 | 0 | 0.0% | Q1 2026 | Apr 15, 2026 |
| Saba Capital Management, L.P. | History | Closed out | 0 | 0 | — | 0.12% | — | -400,000 | -100.0% | Q1 2026 | May 15, 2026 |
| Brevan Howard Capital Management LP | History | Closed out | 0 | 0 | — | 0.01% | — | -81,323 | -100.0% | Q1 2026 | May 15, 2026 |
| ExodusPoint Capital Management, LP | History | Closed out | 0 | 0 | — | 0.0% | — | -36,628 | -100.0% | Q1 2026 | May 14, 2026 |
| JANE STREET GROUP, LLC | History | Closed out | 0 | 0 | — | 0.0% | — | -34,136 | -100.0% | Q1 2026 | May 12, 2026 |