23 institutions reported holding $27.0M of IRON HORSE ACQUISIT II CORP (IRHOU) in SEC 13F filings for 2026-06-30. Largest institutional holders: LMR Partners LLP ($15.3M), OMERS ADMINISTRATION Corp ($4.1M), BlueCrest Capital Management Ltd ($1.8M), Clear Street Group Inc. ($1.8M), Westchester Capital Management, LLC ($1.5M). Source: SEC Form 13F.
| Rank | Institution | Value | Shares | Change |
|---|---|---|---|---|
| 1 | LMR Partners LLP | $15.3M | 1.5M | Hold |
| 2 | OMERS ADMINISTRATION Corp | $4.1M | 400,000 | Hold |
| 3 | BlueCrest Capital Management Ltd | $1.8M | 175,000 | Hold |
| 4 | Clear Street Group Inc. | $1.8M | 172,243 | Added |
| 5 | Westchester Capital Management, LLC | $1.5M | 150,000 | Hold |
| 6 | SYQUANT CAPITAL SAS | $1.3M | 125,000 | Hold |
| 7 | HRT FINANCIAL LP | $1.0M | 101,221 | Trimmed |
| 8 | Lineage Point Capital LP | $171,810 | 16,600 | Hold |
| 9 | FNY Investment Advisers, LLC | $3,000 | 330 | Added |
| 10 | GLAZER CAPITAL, LLC | $1,000 | 144 | New |
| 11 | MILLENNIUM MANAGEMENT LLC | $0 | 0 | Exited |
| 12 | MMCAP International Inc. SPC | $0 | 0 | Exited |
| 13 | TIG Advisors, LLC | $0 | 0 | Exited |
| 14 | PRELUDE CAPITAL MANAGEMENT, LLC | $0 | 0 | Exited |
| 15 | Kepos Capital LP | $0 | 0 | Exited |
| 16 | TORONTO DOMINION BANK | $0 | 0 | Exited |
| 17 | HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND | $0 | 0 | Exited |
| 18 | Tuttle Capital Management, LLC | $0 | 0 | Exited |
| 19 | Yakira Capital Management, Inc. | $0 | 0 | Exited |
| 20 | HGC Investment Management Inc. | $0 | 0 | Exited |
| 21 | Wealthspring Capital LLC | $0 | 0 | Exited |
| 22 | Stoic Point Capital Management LLC | $0 | 0 | Exited |
| 23 | O'Connor Alternative Investments LLC | $0 | 0 | Exited |
Source: SEC Form 13F filings · as of 2026-06-30