WESTIN ACQUISITION CORP WSTN
ORD SHS CL A · Common Stock · CUSIP G9584S106
- SectorHealth care
- IndustryServices-Offices & Clinics of Doctors of Medicine
- FilingsSEC EDGAR
* 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. Shares outstanding: 8.1m as of 2026-06-30, from the company's own SEC filing; the percentage can still exceed 100%: lent-out shares are counted by the lender and the buyer, and some reports overlap without saying so. Implied quarter-end price ≈ $10.10.
Trends to Q2 2026
Institutional holders
Managers reporting a position, each quarter
Numbers
| Quarter | Holders |
|---|---|
| Q4 2025 | 9 |
| Q1 2026 | 24 |
| Q2 2026 | 27 |
Buyers vs sellers
Managers adding to or starting a position, vs cutting or selling out
Numbers
| Quarter | Bought or added | Cut or sold out |
|---|---|---|
| Q1 2026 | 18 | 3 |
| Q2 2026 | 7 | 5 |
Biggest buyers
| GABELLI & Co INVESTMENT ADVISERS, INC. | New | +148.2k |
| GABELLI FUNDS LLC | New | +134.2k |
| Logan Stone Capital, LLC | Added | +37.3k |
| WOLVERINE ASSET MANAGEMENT LLC | Added | +25.2k |
| MIZUHO SECURITIES USA LLC | New | +20.0k |
| HIGHBRIDGE CAPITAL MANAGEMENT LLC | Added | +16.2k |
| D. E. Shaw & Co., Inc. | Added | +3.4k |
Biggest sellers
| Shaolin Capital Management LLC | Reduced | -46.9k |
| Virtu Financial LLC | Reduced | -31.9k |
| Clear Street Group Inc. | Reduced | -27.0k |
| UBS Group AG | Reduced | -6.1k |
| Karpus Management, Inc. | Reduced | -1.4k |
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.
| Holder | Stake |
|---|---|
Westin Investment Co. Ltd.
13D · may seek influence
no change · filed 2026-07-28
Stated purposeItem 4 of the Original Schedule 13D is hereby amended and supplemented as follows: Effective July 25, 2026, pursuant to the Share Transfer Agreement dated July 25, 2026 (the "Share Transfer Agreement"), EU Asia Holidays acquired all of the issued and outstanding shares of Westin Investment from Westin Ventures Holdings Ltd. As a result, EU Asia Holidays became the sole shareholder of the Sponsor and, together with Mr. Ong, the indirect beneficial owner of the Issuer's securities held directly by the Sponsor. The transaction did not result in any transfer of the Issuer's securities held directly by the Sponsor, but rather resulted solely in a change in the indirect ownership and ultimate control of the Sponsor. Except as set forth in this Amendment No. 1, the Reporting Persons do not pres… Full filing |
27.9% |
| Karpus Management, Inc. 13G · institution +2.3 pts · filed 2026-05-14 | 17.2% |
| Shaolin Capital Management LLC 13G · passive investor new · filed 2026-02-17 | 6.6% |
Fell to 5% or below in the last year: WOLVERINE ASSET MANAGEMENT LLC (2.6%, 2026-10-06), Feis Equities LLC (2.0%, 2026-02-04)
Insider purchases and sales since 1 Apr 2026
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 since 1 Apr 2026.
Holders, Q2 2026
| Manager | Shares | Change |
|---|---|---|
| Karpus Management, Inc. 0.40% of their portfolio | 1.4m $14.0m | Reduced -1.4k |
| RIVERNORTH CAPITAL MANAGEMENT, LLC 0.14% of their portfolio | 300.0k $3.0m | Unchanged |
| WOLVERINE ASSET MANAGEMENT LLC 0.03% of their portfolio | 265.0k $2.7m | Added +25.2k |
| Shaolin Capital Management LLC 0.14% of their portfolio | 253.1k $2.6m | Reduced -46.9k |
| ARISTEIA CAPITAL, L.L.C. 0.04% of their portfolio | 250.0k $2.5m | Unchanged |
| WHITEBOX ADVISORS LLC 0.04% of their portfolio | 250.0k $2.5m | Unchanged |
| Polar Asset Management Partners Inc. 0.05% of their portfolio | 250.0k $2.5m | Unchanged |
| Westchester Capital Management, LLC 0.12% of their portfolio | 226.2k $2.3m | Unchanged |
| Crossingbridge Advisors, LLC 0.38% of their portfolio | 215.0k $2.2m | Unchanged |
| MANGROVE PARTNERS IM, LLC 0.13% of their portfolio | 200.0k $2.0m | Unchanged |
| HIGHBRIDGE CAPITAL MANAGEMENT LLC 0.06% of their portfolio | 161.5k $1.6m | Added +16.2k |
| D. E. Shaw & Co., Inc. 0.00% of their portfolio | 158.1k $1.6m | Added +3.4k |
| HEIGHTS CAPITAL MANAGEMENT, INC 0.35% of their portfolio | 150.0k $1.5m | Unchanged |
| GLAZER CAPITAL, LLC 0.04% of their portfolio | 150.0k $1.5m | Unchanged |
| GABELLI & Co INVESTMENT ADVISERS, INC. 0.22% of their portfolio | 148.2k $1.5m | New |
| Clear Street Group Inc. 0.00% of their portfolio | 135.4k $1.4m | Reduced -27.0k |
| GABELLI FUNDS LLC 0.01% of their portfolio | 134.2k $1.4m | New |
| BERKLEY W R CORP 0.06% of their portfolio | 119.1k $1.2m | Unchanged |
| SONA ASSET MANAGEMENT (US) LLC 0.04% of their portfolio | 113.1k $1.1m | Unchanged |
| Logan Stone Capital, LLC 0.22% of their portfolio | 102.0k $1.0m | Added +37.3k |
| Radcliffe Capital Management, L.P. 0.08% of their portfolio | 100.0k $1.0m | Unchanged |
| Hudson Bay Capital Management LP 0.00% of their portfolio | 100.0k $1.0m | Unchanged |
| TWO SIGMA INVESTMENTS, LP 0.00% of their portfolio | 90.6k $914.4k | Unchanged |
| Centiva Capital, LP 0.01% of their portfolio | 33.5k $339.0k | Unchanged |
| MIZUHO SECURITIES USA LLC 0.00% of their portfolio | 20.0k $202.4k | New |
| Virtu Financial LLC 0.00% of their portfolio | 13.9k $141.0k | Reduced -31.9k |
| UBS Group AG 0.00% of their portfolio | 3.0k $30.4k | Reduced -6.1k |