Security Snapshot

Iron Horse Acquisition II Corp. - Ordinary Shares, par value $0.0001 (IRHO) Institutional Ownership

CUSIP: 46283H103

13F Institutional Holders and Ownership History from Q1 2026 to Q3 2026

13F reference period

Q2 2026

Institutions Reporting

55

Shares (Excl. Options)

19.54MFull value: 19,542,255 · shares · 30 Jun 2026

Price

$10.03

The headline uses the Q2 2026 reference period after its reporting deadline. Available reports may still be incomplete or amended. Newer periods in the history table contain incoming reports and may be incomplete.

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Latest holder snapshot 5 signals
Portfolio coverage rank
0%
Share change
+4,379,551
Value change
+$44,177,621
Number of holders
55
Issuer context Names, identifiers, and filing context for this profile. 2 identity fields
Shares outstanding
29,411,765
SEC-reported price per share
$10.06
13F Shares, Excluding Options vs Price
13F Value, Excluding Options
Total Investors
Filing notes and source

Key facts

  • IRHO - Iron Horse Acquisition II Corp. - Ordinary Shares, par value $0.0001 is tracked under CUSIP 46283H103.
  • 55 institutions reported positions in Q2 2026.
  • 2 significant owners is listed from Schedule 13D/13G reporting.

Change

  • Holder count moved from 42 to 55 between Q1 2026 and Q2 2026.
  • SEC-reported value moved from
    $148.88MFull value: $148,878,880 · USD · 31 Mar 2026
    to
    $196.02MFull value: $196,018,954 · USD · 30 Jun 2026
    .

Research use

  • You can quickly see who holds this security, then open quarter and manager detail pages for full evidence.
  • 13F and Schedule 13D/13G sections are kept together so you can cross-check institutional and beneficial ownership context.

Evidence

Source: SEC Form 13F

Latest holder context comes from 55 institutions filings for Q2 2026.

Open SEC evidence

Security key

46283H103

13F reference period

Q2 2026

13F holders

55

13D/G owners

2

CIK / CUSIP context first

13D/G owners

Significant owners

Large-stake holder rows connected to Schedule 13D/G evidence.

Rows
2
Security
IRHO
Filer Ownership Change % Holdings Value Net Change Nb Shares Change % Reporting Name Report Period
IRHO SPAC Sponsor LLC 21% 6,120,000 IRHO SPAC SPONSOR LLC 18 Dec 2025
MMCAP International Inc. SPC 5.1% $14,790,000 1,500,000 MMCAP International Inc. SPC 31 Mar 2026
As of 30 Jun 2026, 55 institutional investors reported holding
19.54MFull value: 19,542,255 · shares · 30 Jun 2026
shares of Iron Horse Acquisition II Corp. - Ordinary Shares, par value $0.0001 (IRHO). This represents 66% of the company’s total
29.41MFull value: 29,411,765 · shares · Stored outstanding share count
outstanding shares.

13F concentration

Top 25 institutional shareholders

Largest 13F positions for this security by reported shares and value.

Top holder share
56%
Institution Ownership % Shares Held Share Change % Portfolio % Holdings Value
Magnetar Financial LLC 5.1% 1,500,000 0% 0.14% $15,045,000
Linden Advisors LP 5.1% 1,500,000 0% 0.08% $15,045,000
MMCAP International Inc. SPC 5.1% 1,500,000 1.3% $15,045,000
AQR Arbitrage LLC 3.8% 1,119,868 +21% 0.16% $11,232,276
GLAZER CAPITAL, LLC 3.1% 908,336 +239% 0.22% $9,111,000
PICTON MAHONEY ASSET MANAGEMENT 3.1% 900,000 0% 0.08% $9,027,003
Polar Asset Management Partners Inc. 2.7% 800,000 0% 0.15% $8,024,000
Wealthspring Capital LLC 2.5% 736,510 1.7% $7,387,195
BNP PARIBAS FINANCIAL MARKETS 2.2% 649,135 0% 0% $6,510,824
Radcliffe Capital Management, L.P. 2.1% 607,182 0% 0.46% $6,090,035
HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND 2% 602,165 0.01% $6,039,715
First Trust Capital Management L.P. 2% 600,000 0% 0.35% $6,018,000
TENOR CAPITAL MANAGEMENT Co., L.P. 1.9% 547,508 0% 0.08% $5,491,505
HIGHBRIDGE CAPITAL MANAGEMENT LLC 1.7% 503,684 +336% 0.17% $5,062,024
HEIGHTS CAPITAL MANAGEMENT, INC 1.6% 470,000 0% 1.1% $4,714,100
MANGROVE PARTNERS IM, LLC 1.5% 450,000 0% 0.3% $4,513,500
TIG Advisors, LLC 1.4% 400,000 0.18% $4,012,000
Context Capital Management, LLC 1.4% 400,000 0% 0.08% $4,012,000
Hudson Bay Capital Management LP 1.3% 379,148 0% 0.02% $3,802,854
Kryger Capital LLC 1.3% 378,052 +35% 0.22% $3,791,862
TWO SIGMA INVESTMENTS, LP 1.2% 362,500 0% 0% $3,635,875
WHITEBOX ADVISORS LLC 1.2% 350,000 0% 0.06% $3,510,500
COMMONWEALTH OF PENNSYLVANIA PUBLIC SCHOOL EMPLS RETRMT SYS 1% 300,000 +50% 0.01% $3,009,000
MILLENNIUM MANAGEMENT LLC 1% 300,000 0% $3,009,000
HGC Investment Management Inc. 1% 298,489 0.59% $2,993,845

Quarter history

Institutional holders across reporting periods

Holder count, reported shares/value, and median price by quarter.

Periods
3
Headline period
Q2 2026
Rows shown
1-3 of 3
Period 13F Shares, Excl. Options Value, Excl. Options Value Change Price (Median) Investors
2026 Q3 50,000 $502,750 $10.06 2
2026 Q2 19,542,255 $196,018,954 +$44,177,621 $10.03 55
2026 Q1 15,094,080 $148,878,880 +$140,390,487 $9.86 42
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