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Who owns IRHO?

Institutional ownership of Iron Horse Acquisitions II Corp. from Form 13F, Q2 2026

55 institutional managers reported holding Iron Horse Acquisitions II Corp. (IRHO) in Form 13F filings for Q2 2026, with 19,542,255 shares worth $196M. The largest reported holder was Linden Advisors LP. Managers that filed both quarters added a net 4,448,175 shares (+29.5%). 17 opened new positions and 4 sold out.

Funds holding
55
Value held
$196M
New / sold out
17 / 4
Net shares, same filers
+29.5%

Holdings as of June 30, 2026, the end of Q2 2026. Managers have 45 days after a quarter ends to file Form 13F (by August 14, 2026 for Q2 2026), so positions may have changed since.

Largest holders of IRHO

FundValueShare of 13F holdingsSharesMove
Linden Advisors LP$15.0M7.7%1,500,000Unchanged
Magnetar Financial LLC$15.0M7.7%1,500,000Unchanged
MMCAP International Inc. SPC$15.0M7.7%1,500,000New
AQR Arbitrage LLC$11.2M5.7%1,119,868Added
Glazer Capital, LLC$9.1M4.6%908,336Added
Picton Mahoney Asset Management$9.0M4.6%900,000Unchanged
Polar Asset Management Partners Inc.$8.0M4.1%800,000Unchanged
Wealthspring Capital LLC$7.4M3.8%736,510New
BNP Paribas Financial Markets$6.5M3.3%649,135Added
Radcliffe Capital Management, L.P.$6.1M3.1%607,182Unchanged
Healthcare of Ontario Pension Plan Trust Fund$6.0M3.1%602,165New
First Trust Capital Management L.P.$6.0M3.1%600,000Unchanged
TENOR CAPITAL MANAGEMENT Co., L.P.$5.5M2.8%547,508Unchanged
Highbridge Capital Management LLC$5.1M2.6%503,684Added
Heights Capital Management, Inc$4.7M2.4%470,000Unchanged
Mangrove Partners Im, LLC$4.5M2.3%450,000Unchanged
TIG Advisors, LLC$4.0M2.0%400,000New
Context Capital Management, LLC$4.0M2.0%400,000Unchanged
Hudson Bay Capital Management LP$3.8M1.9%379,148Unchanged
Kryger Capital LLC$3.8M1.9%378,052Added
Two Sigma Investments, LP$3.6M1.9%362,500Unchanged
Whitebox Advisors LLC$3.5M1.8%350,000Unchanged
Millennium Management LLC$3.0M1.5%300,000New
Commonwealth of Pennsylvania Public School Empls Retrmt Sys$3.0M1.5%300,000Added
HGC Investment Management Inc.$3.0M1.5%298,489New

Share of 13F holdings is each fund's shares as a share of the 19,542,255 IRHO shares all 13F filers reported, not of shares outstanding.

Biggest buyers in Q2 2026

  1. MMCAP International Inc. SPC New+$15.0M
  2. Wealthspring Capital LLC New+$7.4M
  3. Glazer Capital, LLC Added+$6.4M
  4. Healthcare of Ontario Pension Plan Trust Fund New+$6.0M
  5. TIG Advisors, LLC New+$4.0M
  6. Highbridge Capital Management LLC Added+$3.9M
  7. Millennium Management LLC New+$3.0M
  8. HGC Investment Management Inc. New+$3.0M
  9. JPMorgan Chase & Co New+$2.2M
  10. AQR Arbitrage LLC Added+$1.9M

Biggest sellers in Q2 2026

  1. CSS LLC Sold out-$7.3M
  2. Ilex Capital Partners (UK) LLP Sold out-$3.9M
  3. Sculptor Capital LP Sold out-$2.5M
  4. Meteora Capital, LLC Trimmed-$2.0M
  5. Clear Street Group Inc. Trimmed-$1.1M
  6. Wolverine Asset Management LLC Trimmed-$888K
  7. Shaolin Capital Management LLC Trimmed-$411K
  8. Royal Bank of Canada Sold out-$214K
  9. Virtu Financial LLC Trimmed-$93K
  10. Rivernorth Capital Management, LLC Trimmed-$1K

The change in shares since the quarter before, adjusted for stock splits and priced at the Q2 2026 value per share. Funds bought $63.2M and sold $18.4M; 10 added and 6 trimmed.

Schedule 13D and 13G filings on IRHO

Owners of more than 5% must file within days, so these can be newer than the 13F data.

Questions about IRHO ownership

Who owns IRHO stock?
55 institutional investment managers reported IRHO positions in their Form 13F filings for Q2 2026, holding 19,542,255 shares worth $196M in total. Linden Advisors LP reported the largest position.
Are funds buying or selling IRHO?
In Q2 2026, 17 managers opened new IRHO positions, 10 added, 6 trimmed and 4 sold out. Managers that filed in both quarters added a net 4,448,175 shares.
How current is this IRHO institutional ownership data?
It covers holdings as of the end of Q2 2026. Managers have 45 days after the quarter ends to file Form 13F (by August 14, 2026 for Q2 2026), so positions may have changed since.

From the SEC's Form 13F data sets for Q2 2026: every 13F holdings report, matched to IRHO by CUSIP. Options are left out. IRHO news and filings · IRHO insider trades · Top funds