As of November 6, 2026, Iron Horse Acquisition II Corp. is a publicly traded company (Nasdaq: IRHO). The largest holder reporting an active stake on Schedule 13D is Irho Spac Sponsor LLC, at 21%. No bankruptcy or receivership appears in its SEC Form 8-K filings. Passive holders reporting on Schedule 13G include Linden Advisors LP (6.4%), Magnetar Financial LLC (5.11%), MMCAP International Inc. SPC (5.1%) (Schedule 13D, January 16, 2026).
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Is Iron Horse Acquisition II Corp. a real, registered company?
- Iron Horse Acquisition II Corp. files with the SEC under CIK 2051985 (its SEC filings).
- Its shares are listed under the ticker IRHO on Nasdaq (also IRHOR, IRHOU) (SEC company record).
- business address in Boca Raton, Florida, as its SEC filings state.
- Court and bankruptcy records: see Before you sign or pay below.
Before you sign or pay
- Court and bankruptcy: No federal court case or bankruptcy filing found under Iron Horse Acquisition II Corp. in our court records and SEC 8-K records (as of 2026-11-06).
- Ownership: 5%+ holders are reported on Schedule 13D or 13G; the latest names MMCAP International Inc. SPC (filed 2026-05-11).
Who are Iron Horse Acquisition II Corp.'s owners and officers?
Iron Horse Acquisition II Corp.: business address in Boca Raton, Florida; industry Services-Business Services, NEC (Schedule 13G/A, 2026-05-11).
| Report | Holder | Share |
|---|---|---|
| Schedule 13G/A, 2026-05-11 | Mmcap International Inc. Spc | 5.1% |
| Schedule 13G, 2026-02-17 | Lmr Partners LLP | 5.1% |
| Schedule 13G, 2026-02-17 | Magnetar Financial LLC | 5.11% |
| Schedule 13G/A, 2026-02-13 | Mmcap International Inc. Spc | 5.7% |
| Schedule 13D, 2026-01-16 | Irho Spac Sponsor LLC | 21% |
| Schedule 13G, 2025-12-23 | Linden Advisors LP | 6.4% |
| Schedule 13G, 2025-12-19 | Mmcap International Inc. Spc | 5.9% |
Questions about who owns Iron Horse Acquisition II Corp.
Who owns Iron Horse Acquisition II Corp.?
On this page, 5 holders' latest ownership filings report 5% or more of Iron Horse Acquisition II Corp.: Irho Spac Sponsor LLC (21%, Schedule 13D, filed 2026-01-16), Linden Advisors LP (6.4%, Schedule 13G, filed 2025-12-23), Magnetar Financial LLC (5.11%, Schedule 13G, filed 2026-02-17), Mmcap International Inc. Spc (5.1%, Schedule 13G/A, filed 2026-05-11) and Lmr Partners LLP (5.1%, Schedule 13G, filed 2026-02-17).
Who are the largest shareholders of Iron Horse Acquisition II Corp.?
By the share each holder's latest filing reports, the largest holders of Iron Horse Acquisition II Corp. on this page are Irho Spac Sponsor LLC (21%), Linden Advisors LP (6.4%) and Magnetar Financial LLC (5.11%).
When did Irho Spac Sponsor LLC buy into Iron Horse Acquisition II Corp.?
The filings give report dates, not purchase dates. The earliest filing from Irho Spac Sponsor LLC on this page is the Schedule 13D, filed 2026-01-16, reporting 21%.
Is this an audit or a full list?
Neither. The ownership list on this page covers only Schedule 13D and 13G filings, which holders make once they own 5% or more of a class of shares (an amendment can report a stake that has since fallen below 5%); 7 such filings are shown here. It is not an audit and not a full cap table: holders who never reached 5% are not listed, and a stake can change after its latest filing.
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Which insiders own Iron Horse Acquisition II Corp. shares?
Directors, officers and holders of 10% or more report their shares on Forms 3, 4 and 5. Each line is the latest such report, largest holding first.
- IRHO SPAC Sponsor LLC, a 10% owner: 6,120,000 shares (20.9% of shares outstanding) (Form 3, 2025-12-17).
- , the chairman and chief executive: 6,120,000 shares (20.9% of shares outstanding), held indirectly (the form names the holder only in its footnotes) (Form 3, 2025-12-16).
Shares outstanding: 29,320,000 as of 2026-10-09, from the company's latest SEC cover page.
How much has Iron Horse Acquisition II Corp. raised?
Latest IPO step: Iron Horse Acquisition II Corp. filed its final IPO prospectus, ticker IRHOU (424B4, 2025-12-18).
IPO filings: 424B4, 2025-12-18, S-1/A, 2025-12-10, S-1/A, 2025-10-06, S-1/A, 2025-08-07, S-1/A, 2025-07-03; ticker IRHOU on Nasdaq Global Market.
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More on Iron Horse Acquisition II Corp. and the records around it.
Iron Horse Acquisition II Corp. elsewhere on the record
- 5%+ stake filings May 2026
Companies that share a holder
- LMR Partners LLP also filed stake reports on 44 other companies: BuzzFeed Inc (Aug 2026), Cartesian Growth Corp IV (Aug 2026), Collective Acquisition Corp. II (Aug 2026)
- MMCAP International Inc. SPC also filed stake reports on 52 other companies: BHAV Acquisition Corp II (Nov 2026), Haymaker Acquisition Corp V (Sep 2026), Thunder Bridge Capital Partners V, Ltd. (Aug 2026)
- Linden Capital L.P. also filed stake reports on 73 other companies: Southport Acquisition Corp. II (Oct 2026), NewHold Investment Corp IV (Sep 2026), Haymaker Acquisition Corp V (Sep 2026)
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