IRHOU · Iron Horse Acquisition II Corp. · Shareholders & Ownership
Substantial doubt about the company's ability to continue as a going concern.
“These conditions raise substantial doubt about the Company’s ability to continue as a going concern. Management plans to consummate an initial Business Combination prior to the end of the Combination Period.”View the 10-Q filed Oct 9, 2026
Every disclosed holder of IRHOU in one list: 13F institutions, Schedule 13D and 13G filers, insiders (Forms 3, 4 and 5) and registered funds, each from its own latest filing. Holders nest by CIK and SEC reporting links, never by name, and each is summed once.
Who Owns IRHOU
13F quarter Sep 30, 2026; this listing alone: insiders and shares outstanding are issuer-wide, so they are left outNo chart: shares outstanding cannot be set against these holders.
| Holder group | Shares | % Out |
|---|---|---|
| Institutional (13F) | 125,430 | — |
| Insiders (Forms 3, 4, 5) | 0 | — |
| 13D/G-only blocks | 6,000,000 | — |
| Registered funds (N-PORT, not summed) | 0 | — |
% Out is unavailable: shares outstanding is an issuer-wide count, not one listing's.
13D/G-only counts each filer's latest 13D or 13G that no 13F report of the listing contains, that names no 13F filer and that no counted insider files. Funds are never summed: their shares sit inside their advisers' 13F reports.
Holders of IRHOU
| # | Holder | Shares | As of | Notes |
|---|---|---|---|---|
| 1 |
|
1,500,000 | ||
| 2 |
LMR Partners LLP
13G
CIK 1578621 · Exempt reporting adviser · Dec 31, 2025
Rule 13d-1(b), qualified institution
|
1,500,000 | ||
| 3 |
Magnetar Financial LLC
13G
CIK 1352851 · Registered investment adviser · Dec 31, 2025
Rule 13d-1(b), qualified institution
|
1,500,000 | ||
| 4 |
MMCAP International Inc. SPC
13G
CIK 1304857 · Unknown · Mar 31, 2026
Rule 13d-1(c), passive investor
|
1,500,000 | ||
| 5 |
SYQUANT CAPITAL SAS
13F
CIK 1766392 · Unknown · Sep 30, 2026
|
125,000 | ||
| 6 |
FNY Investment Advisers, LLC
13F
CIK 1742998 · Unknown · Sep 30, 2026
|
430 |
Shares are restated onto today's split basis. Change compares each row with the same holder's previous filing in the same source; a dash means there is none to compare. Nested 13D/G, insider and fund rows are not summed, since a 13F report already holds them.