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IRHO · Iron Horse Acquisition II Corp. · Holdings

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$10.06 +0.00 (+0.00%) At close · Sep 11
Rebalance outlook locked
Going-concern doubt — flagged Jul 13, 2026

Substantial doubt about the company's ability to continue as a going concern.

“In connection with the Company's assessment of going concern considerations in accordance with FASB ASC 205-40, "Financial Statement Presentation — Going Concern," the Company's Management has determined that the Company currently lacks the liquidity it needs to sustain operations for a reasonable period of time, which is considered to be at least one year from the date that the accompanying unaudited consolidated financial statements are issued as it expects to continue to incur significant costs in pursuit of its acquisition plans. In addition, Management has determined that if the Company is unable to complete an initial Business Combination within the Combination Period, then the Company will cease all operations except for the purpose of liquidating. These conditions raise substantial doubt about the Company's ability to continue as a going concern.”
View the 10-Q filed Jul 13, 2026
Market Cap
$294.67M
Shares
29.32M

Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.

Use institutional holdings through the 13F API or MCP →
Holders: 69
Total Value: $195,758,057
Total Shares: 38,819,379
Showing 1–100 of 109 holdings by value · page 1 of 2

Institutional Ownership Trend

3 quarters

Holder Concentration

Across 69 13F filers · Δ vs Mar 31, 2026
Top Holder
7.7%
Dec 2025 → Jun 2026 · range 6.7% – 7.7%
+0.9 pts
Top 5
33.4%
Dec 2025 → Jun 2026 · range 30.9% – 33.4%
+2.1 pts
Top 10
52.4%
Dec 2025 → Jun 2026 · range 47.7% – 52.4%
+4.0 pts
HHI
393
Dec 2025 → Jun 2026 · range 341 – 393
Broadly held+47

Quarterly Activity

vs Mar 31, 2026
New
8
Increased
23
Decreased
18
Sold Out
5
Unchanged
20
Holder count: +3
Institutional value: -10.7%
Shares held: +7.4%

Top Buyers

vs Mar 31, 2026
Institution Added Now Holds Open
MMCAP International Inc. SPC +1,500,000 3,000,000
GLAZER CAPITAL, LLC +872,972 1,408,480
HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND +602,165 1,204,330
TIG Advisors, LLC +400,000 800,000
HIGHBRIDGE CAPITAL MANAGEMENT LLC +388,230 503,684

Top Sellers

vs Mar 31, 2026
Institution Sold Now Holds Open
CSS LLC/IL −737,555 73,810
First Trust Capital Management L.P. −586,507 600,000
Context Capital Management, LLC −400,000 400,000
WOLVERINE ASSET MANAGEMENT LLC −270,102 131,598
Sculptor Capital LP −249,938 243,088

Top New Positions

vs Mar 31, 2026
Institution Acquired Value (USD) Open
JPMORGAN CHASE & CO 218,809 $2,194,654
SummitTX Capital, L.P. 114,122 $572,321
Ionic Capital Management LLC 144,202 $189,316
MORGAN STANLEY 2 $20
Schonfeld Strategic Advisors LLC 22,399 $0

Top Sold-Out Positions

vs Mar 31, 2026
Institution Previously Held Last Value (USD) Open
Ilex Capital Partners (UK) LLP 800,000 $3,944,000
SYQUANT CAPITAL SAS 125,000 $1,245,000
Tuttle Capital Management, LLC 25,000 $249,000
DELTEC ASSET MANAGEMENT LLC 25,000 $246,500
Parallax Volatility Advisers, L.P. 53,816 $0
Filter: New 8 Increased 23 Reduced 18 Sold out 5 Unchanged 20
Showing 100 of 109
All Common Calls Puts
Export CSV
Holder Value (USD) % of 13F Shares Open
MMCAP International Inc. SPC $15,045,000 7.69% 1,500,000
Magnetar Financial LLC $15,045,000 7.69% 1,500,000
Linden Advisors LP $15,045,000 7.69% 1,500,000
AQR Arbitrage LLC $11,232,276 5.74% 1,119,868
GLAZER CAPITAL, LLC $9,110,610 4.65% 908,336
PICTON MAHONEY ASSET MANAGEMENT $9,027,000 4.61% 900,000
Polar Asset Management Partners Inc. $8,024,000 4.10% 800,000
Wealthspring Capital LLC $7,387,195 3.77% 736,510
BNP PARIBAS ARBITRAGE, SA $6,510,824 3.33% 649,135
Radcliffe Capital Management, L.P. $6,090,035 3.11% 607,182
HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND $6,039,714 3.09% 602,165
First Trust Capital Management L.P. $6,018,000 3.07% 600,000
TENOR CAPITAL MANAGEMENT Co., L.P. $5,491,505 2.81% 547,508
HIGHBRIDGE CAPITAL MANAGEMENT LLC $5,051,950 2.58% 503,684
HEIGHTS CAPITAL MANAGEMENT, INC $4,714,100 2.41% 470,000
MANGROVE PARTNERS IM, LLC $4,513,500 2.31% 450,000
Context Capital Management, LLC $4,012,000 2.05% 400,000
TIG Advisors, LLC $4,012,000 2.05% 400,000
Hudson Bay Capital Management LP $3,802,854 1.94% 379,148
Kryger Capital LLC $3,791,861 1.94% 378,052
TWO SIGMA INVESTMENTS, LP $3,635,875 1.86% 362,500
WHITEBOX ADVISORS LLC $3,510,500 1.79% 350,000
MILLENNIUM MANAGEMENT LLC $3,009,000 1.54% 300,000
COMMONWEALTH OF PENNSYLVANIA PUBLIC SCHOOL EMPLS RETRMT SYS $3,009,000 1.54% 300,000
HGC Investment Management Inc. $2,993,844 1.53% 298,489
Mint Tower Capital Management B.V. $2,507,500 1.28% 250,000
Alberta Investment Management Corp $2,507,500 1.28% 250,000
BERKLEY W R CORP $2,485,935 1.27% 247,850
SONA ASSET MANAGEMENT (US) LLC $2,448,713 1.25% 244,139
JPMORGAN CHASE & CO $2,194,654 1.12% 218,809
METEORA CAPITAL, LLC $2,181,013 1.11% 217,449
Shaolin Capital Management LLC $2,097,022 1.07% 209,075
Periscope Capital Inc. $1,504,500 0.77% 150,000
Yakira Capital Management, Inc. $1,473,477 0.75% 146,907
TORONTO DOMINION BANK $1,314,501 0.67% 131,057
WOLVERINE ASSET MANAGEMENT LLC $1,136,078 0.58% 113,268
L1 Global Manager Pty Ltd $1,003,000 0.51% 100,000
O'Connor Alternative Investments LLC $1,003,000 0.51% 100,000
MOORE CAPITAL MANAGEMENT, LP $1,003,000 0.51% 100,000
Karpus Management, Inc. $789,110 0.40% 78,675
SummitTX Capital, L.P. $572,321 0.29% 57,061
Stoic Point Capital Management LLC $551,650 0.28% 55,000
PRELUDE CAPITAL MANAGEMENT, LLC $551,650 0.28% 55,000
RIVERNORTH CAPITAL MANAGEMENT, LLC $500,497 0.26% 49,900
Kepos Capital LP $401,200 0.20% 40,000
PenderFund Capital Management Ltd. $258,774 0.13% 25,800
FNY Investment Advisers, LLC $250,750 0.13% 25,000
MIZUHO SECURITIES USA LLC $210,369 0.11% 20,974
Ionic Capital Management LLC $189,316 0.10% 18,875
Virtu Financial LLC $153,900 0.08% 15,344
UBS Group AG $147,972 0.08% 14,753
SUSQUEHANNA INTERNATIONAL GROUP, LLP $110,330 0.06% 11,000
Clear Street Group Inc. $87,662 0.04% 8,740
MORGAN STANLEY $20 0.00% 2
Schonfeld Strategic Advisors LLC IRHOR — — 22,399
WHITEBOX ADVISORS LLC IRHOR — — 350,000
AQR Arbitrage LLC IRHOR — — 992,610
METEORA CAPITAL, LLC IRHOR — — 696,490
BlueCrest Capital Management Ltd IRHOU — — 175,000
OMERS ADMINISTRATION Corp IRHOU — — 400,000
RIVERNORTH CAPITAL MANAGEMENT, LLC IRHOR — — 50,000
ExodusPoint Capital Management, LP IRHOR — — 36,628
Harraden Circle Investments, LLC IRHOR — — 389,400
Polar Asset Management Partners Inc. IRHOR — — 800,000
Linden Advisors LP IRHOR — — 1,500,000
ROYAL BANK OF CANADA IRHOR — — 500
GLAZER CAPITAL, LLC IRHOU — — 144
TENOR CAPITAL MANAGEMENT Co., L.P. IRHOR — — 547,508
MANGROVE PARTNERS IM, LLC IRHOR — — 300,987
BOOTHBAY FUND MANAGEMENT, LLC IRHOR — — 172,498
Clear Street Group Inc. IRHOU — — 172,243
Stoic Point Capital Management LLC IRHOR — — 55,000
HGC Investment Management Inc. IRHOR — — 523,489
MMCAP International Inc. SPC IRHOR — — 1,500,000
HRT FINANCIAL LP IRHOU — — 101,221
MILLENNIUM MANAGEMENT LLC IRHOR — — 300,000
GLAZER CAPITAL, LLC IRHOR — — 500,000
Alberta Investment Management Corp IRHOR — — 250,000
Yakira Capital Management, Inc. IRHOR — — 146,907
BNP PARIBAS ARBITRAGE, SA IRHOR — — 526,392
CSS LLC/IL IRHOR — — 73,810
PICTON MAHONEY ASSET MANAGEMENT IRHOR — — 900,000
Ionic Capital Management LLC IRHOR — — 125,327
O'Connor Alternative Investments LLC IRHOR — — 100,000
Radcliffe Capital Management, L.P. IRHOR — — 604,519
PRELUDE CAPITAL MANAGEMENT, LLC IRHOR — — 55,000
Hudson Bay Capital Management LP IRHOR — — 379,148
TIG Advisors, LLC IRHOR — — 400,000
HEIGHTS CAPITAL MANAGEMENT, INC IRHOR — — 317,338
Periscope Capital Inc. IRHOR — — 88,000
Shaolin Capital Management LLC IRHOR — — 254,466
FLOW TRADERS U.S. LLC IRHOR — — 16,403
SONA ASSET MANAGEMENT (US) LLC IRHOR — — 244,139
HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND IRHOR — — 602,165
ARISTEIA CAPITAL, L.L.C. IRHOR — — 200,200
SummitTX Capital, L.P. IRHOR — — 57,061
Lineage Point Capital LP IRHOU — — 16,600
TORONTO DOMINION BANK IRHOR — — 189,989
Westchester Capital Management, LLC IRHOU — — 150,000
Magnetar Financial LLC IRHOR — — 1,500,000
Key facts CIK 2051985 CUSIP 46283H103 13F (30d) 34 filings 34 filers Visit website Investor relations