Vault-13

IRON HORSE ACQUISIT CORP II IRHOU

UNIT 07/11/2030 · Unit · CUSIP 46283H202

61 institutional holders
22,545,08622.5m shares reported held*
$224.2mreported value*

* Summed across managers. Shares that two managers' reports both contain – a subsidiary's holdings that its parent's report includes too, or a sub-adviser's in its client's – are counted once. Holder counts are more reliable. Implied quarter-end price ≈ $9.94.

Biggest buyers

Magnetar Financial LLC New +1,500,000+1.5m
LMR Partners LLP New +1,500,000+1.5m
Linden Advisors LP New +1,500,000+1.5m
MMCAP International Inc. SPC New +1,500,000+1.5m
AQR Arbitrage LLC New +973,608+973.6k
PICTON MAHONEY ASSET MANAGEMENT New +900,000+900.0k
Polar Asset Management Partners Inc. New +800,000+800.0k
Wealthspring Capital LLC New +739,040+739.0k
CSS LLC/IL New +738,100+738.1k
Radcliffe Capital Management, L.P. New +603,644+603.6k

Biggest sellers

None

Major shareholders (over 5%)

Anyone who owns more than 5% of a class of the company's shares has to say so: on Schedule 13D if they may try to influence or control the company, on 13G if they're a passive investor, and update it as the stake changes. Each holder's latest filing, from 19 Dec 2024 on; percentages are of the share class, as the holder worked them out.

HolderStakeChangeShares Last filed
Linden Capital L.P. 13G · passive investor new · filed 2025-12-23 6.4% new 1.5m≈ $15.3m 2025-12-23
Magnetar Financial LLC 13G · institution new · filed 2026-02-17 5.1% new 1.5m≈ $15.3m 2026-02-17
MMCAP International Inc. SPC 13G · passive investor -0.6 pts · filed 2026-05-11 5.1% -0.6 pts 1.5m≈ $15.3m 2026-05-11
LMR Partners LLP 13G · institution new · filed 2026-02-17 5.1% new 1.5m≈ $15.3m 2026-02-17

Insider purchases and sales in Q4 2025

Shares bought or sold by the company's own officers, directors and 10% owners, in the open market or privately, as they reported to the SEC on Form 4 (due within two business days of the trade). Grants, option exercises, shares withheld for tax and gifts aren't included.

None reported in Q4 2025.

Holders, Q4 2025

#ManagerLocationShares Value% of their portfolioChangeShares change
1 Linden Advisors LP 0.09% of their portfolio New York, NY 1,500,0001.5m $14.9m $14.9m 0.09% New
2 MMCAP International Inc. SPC 1.49% of their portfolio GRAND CAYMAN, E9 1,500,0001.5m $14.9m $14.9m 1.49% New
3 Magnetar Financial LLC 0.15% of their portfolio EVANSTON, IL 1,500,0001.5m $14.9m $14.9m 0.15% New
4 LMR Partners LLP 0.14% of their portfolio LONDON, X0 1,500,0001.5m $14.9m $14.9m 0.14% New
5 AQR Arbitrage LLC 0.20% of their portfolio Greenwich, CT 973,608973.6k $9.7m $9.7m 0.20% New
6 PICTON MAHONEY ASSET MANAGEMENT 0.10% of their portfolio Toronto, A6 900,000900.0k $9.0m $9.0m 0.10% New
7 Polar Asset Management Partners Inc. 0.16% of their portfolio TORONTO, A6 800,000800.0k $8.0m $8.0m 0.16% New
8 Wealthspring Capital LLC 1.74% of their portfolio WEST HARRISON, NY 739,040739.0k $7.3m $7.3m 1.74% New
9 CSS LLC/IL 0.41% of their portfolio CHICAGO, IL 738,100738.1k $7.3m $7.3m 0.41% New
10 Radcliffe Capital Management, L.P. 0.33% of their portfolio BALA CYNWYD, PA 603,644603.6k $6.0m $6.0m 0.33% New
11 HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND 0.01% of their portfolio TORONTO, A6 602,165602.2k $6.0m $6.0m 0.01% New
12 First Trust Capital Management L.P. 0.36% of their portfolio CHICAGO, IL 600,000600.0k $6.0m $6.0m 0.36% New
13 UBS Group AG 0.00% of their portfolio ZURICH, V8 563,000563.0k $5.6m $5.6m 0.00% New
14 TENOR CAPITAL MANAGEMENT Co., L.P. 0.08% of their portfolio NEW YORK, NY 547,508547.5k $5.4m $5.4m 0.08% New
15 BNP PARIBAS FINANCIAL MARKETS 0.00% of their portfolio PARIS, I0 526,392526.4k $5.2m $5.2m 0.00% New
16 HGC Investment Management Inc. 1.10% of their portfolio TORONTO, A6 523,489523.5k $5.2m $5.2m 1.10% New
17 Meteora Capital, LLC 0.40% of their portfolio Boca Raton, FL 484,600484.6k $4.8m $4.8m 0.40% New
18 HEIGHTS CAPITAL MANAGEMENT, INC 1.77% of their portfolio SAN FRANCISCO, CA 470,000470.0k $4.7m $4.7m 1.77% New
19 Sculptor Capital LP 0.05% of their portfolio New York, NY 446,397446.4k $4.4m $4.4m 0.05% New
20 OMERS ADMINISTRATION Corp 0.03% of their portfolio TORONTO, A6 400,000400.0k $4.0m $4.0m 0.03% New
21 Context Capital Management, LLC 0.10% of their portfolio LAJOLLA, CA 400,000400.0k $4.0m $4.0m 0.10% New
22 TIG Advisors, LLC 0.19% of their portfolio New York, NY 400,000400.0k $4.0m $4.0m 0.19% New
23 Saba Capital Management, L.P. 0.13% of their portfolio NEW YORK, NY 400,000400.0k $4.0m $4.0m 0.13% New
24 Ilex Capital Partners (UK) LLP 0.11% of their portfolio London, X0 400,000400.0k $4.0m $4.0m 0.11% New
25 Hudson Bay Capital Management LP 0.02% of their portfolio STAMFORD, CT 379,148379.1k $3.8m $3.8m 0.02% New
26 TWO SIGMA INVESTMENTS, LP 0.01% of their portfolio NEW YORK, NY 362,500362.5k $3.6m $3.6m 0.01% New
27 WHITEBOX ADVISORS LLC 0.06% of their portfolio MINNEAPOLIS, MN 350,000350.0k $3.5m $3.5m 0.06% New
28 MILLENNIUM MANAGEMENT LLC 0.00% of their portfolio NEW YORK, NY 300,000300.0k $3.0m $3.0m 0.00% New
29 KRYGER CAPITAL Ltd 0.21% of their portfolio LONDON, X0 274,443274.4k $2.7m $2.7m 0.21% New
30 Alberta Investment Management Corp 0.01% of their portfolio EDMONTON, A0 250,000250.0k $2.5m $2.5m 0.01% New
31 Mint Tower Capital Management B.V. 0.30% of their portfolio AMSTERDAM, P7 250,000250.0k $2.5m $2.5m 0.30% New
32 Shaolin Capital Management LLC 0.09% of their portfolio Miami, FL 250,000250.0k $2.5m $2.5m 0.09% New
33 BERKLEY W R CORP 0.14% of their portfolio Greenwich, CT 247,850247.8k $2.5m $2.5m 0.14% New
34 GLAZER CAPITAL, LLC 0.05% of their portfolio New York, NY 207,234207.2k $2.1m $2.1m 0.05% New
35 COMMONWEALTH OF PENNSYLVANIA PUBLIC SCHOOL EMPLS RETRMT SYS 0.01% of their portfolio HARRISBURG, PA 200,000200.0k $2.0m $2.0m 0.01% New
36 WOLVERINE ASSET MANAGEMENT LLC 0.03% of their portfolio CHICAGO, IL 199,900199.9k $2.0m $2.0m 0.03% New
37 BlueCrest Capital Management Ltd 0.07% of their portfolio ST HELIER, Y9 175,000175.0k $1.7m $1.7m 0.07% New
38 Westchester Capital Management, LLC 0.07% of their portfolio VALHALLA, NY 150,000150.0k $1.5m $1.5m 0.07% New
39 Yakira Capital Management, Inc. 0.50% of their portfolio Westport, CT 150,000150.0k $1.5m $1.5m 0.50% New
40 HRT FINANCIAL LP 0.01% of their portfolio NEW YORK, NY 127,494127.5k $1.3m $1.3m 0.01% New
41 SYQUANT CAPITAL SAS 0.15% of their portfolio PARIS, I0 125,000125.0k $1.2m $1.2m 0.15% New
42 MANGROVE PARTNERS IM, LLC 0.09% of their portfolio Greenwich, CT 111,156111.2k $1.1m $1.1m 0.09% New
43 OCONNOR, A Distinct Business Unit of UBS ASSET MANAGEMENT AMERICAS (LLC) 0.03% of their portfolio CHICAGO, IL 100,000100.0k $994.0k $994.0k 0.03% Not comparable
44 MOORE CAPITAL MANAGEMENT, LP 0.02% of their portfolio NEW YORK, NY 100,000100.0k $994.5k $994.5k 0.02% New
45 L1 Global Manager Pty Ltd 0.65% of their portfolio Melbourne, C3 100,000100.0k $994.5k $994.5k 0.65% First filing
46 Periscope Capital Inc. 0.17% of their portfolio Toronto, A6 88,00088.0k $875.2k $875.2k 0.17% New
47 Brevan Howard Capital Management LP 0.02% of their portfolio ST. HELIER, Y9 81,32381.3k $809.2k $809.2k 0.02% New
48 Clear Street Group Inc. 0.00% of their portfolio NEW YORK, NY 52,49552.5k $522.1k $522.1k 0.00% New
49 ROYAL BANK OF CANADA 0.00% of their portfolio TORONTO, A6 50,00050.0k $497.0k $497.0k 0.00% New
50 PRELUDE CAPITAL MANAGEMENT, LLC 0.04% of their portfolio NEW YORK, NY 50,00050.0k $497.2k $497.2k 0.04% New
51 RIVERNORTH CAPITAL MANAGEMENT, LLC 0.02% of their portfolio WEST PALM BEACH, FL 50,00050.0k $497.2k $497.2k 0.02% New
52 Stoic Point Capital Management LLC 0.42% of their portfolio PALO ALTO, CA 50,00050.0k $497.2k $497.2k 0.42% First filing
53 Virtu Financial LLC 0.02% of their portfolio New York, NY 42,24542.2k $420.0k $420.0k 0.02% New
54 ExodusPoint Capital Management, LP 0.00% of their portfolio NEW YORK, NY 36,62836.6k $364.3k $364.3k 0.00% New
55 JANE STREET GROUP, LLC 0.00% of their portfolio NEW YORK, NY 34,13634.1k $339.5k $339.5k 0.00% New
56 DELTEC ASSET MANAGEMENT LLC 0.04% of their portfolio New York, NY 25,00025.0k $248.6k $248.6k 0.04% New
57 Tuttle Capital Management, LLC 0.55% of their portfolio RIVERSIDE, CT 25,00025.0k $248.6k $248.6k 0.55% New
58 Lineage Point Capital LP 0.06% of their portfolio PALM BEACH, FL 16,60016.6k $165.1k $165.1k 0.06% First filing
59 SUSQUEHANNA INTERNATIONAL GROUP, LLP 0.00% of their portfolio BALA CYNWYD, PA 10,79110.8k $107.3k $107.3k 0.00% New
60 PenderFund Capital Management Ltd. 0.01% of their portfolio VANCOUVER, A1 5,0005.0k $49.7k $49.7k 0.01% New
61 FNY Investment Advisers, LLC 0.00% of their portfolio NEW YORK, NY 200200 $1.0k $1.0k 0.00% New