Polaryx Therapeutics
PLYX · NASDAQ
$1.91−$0.01 (−0.52%)TodayMarket closed ·
Prev close $1.92
Who owns PLYX
Largest institutional holders, from their latest 13F filings
The 10 largest institutions hold 74.2% of PLYX’s shares.
- Mstone Partners Healthcare Ltd45.8%
- Koh (Gershon)11.1%
- Rush University Medical Center7.6%
- Young Poong Pharmaceutical Co, Ltd.5.4%
- Next 6 largest institutions4.2%
- All other shareholders25.8%
| Holder | Shares | % of shares |
|---|---|---|
| Mstone Partners Healthcare Ltd | 22.83M | 45.80% |
| Koh (Gershon) | 5.53M | 11.09% |
| Rush University Medical Center | 3.81M | 7.64% |
| Young Poong Pharmaceutical Co, Ltd. | 2.68M | 5.38% |
| Vanguard Capital Management, LLC | 1.66M | 3.33% |
| Geode Capital Management, L.L.C. | 171.00K | 0.34% |
| Vanguard Fiduciary Trust Co | 105.07K | 0.21% |
| HRT Financial LP | 82.09K | 0.16% |
| State Street Investment Management (US) | 58.10K | 0.12% |
| BlackRock Institutional Trust Company, N.A. | 41.01K | 0.08% |
Largest mutual fund holders
| Holder | Shares | % of shares |
|---|---|---|
| Vanguard Total Stock Market Index Fund | 1.47M | 2.94% |
| Vanguard Extended Market Index Fund | 142.03K | 0.28% |
| Fidelity Extended Market Index Fund | 65.47K | 0.13% |
| Fidelity NASDAQ Composite Index Fund | 28.65K | 0.06% |
| Fidelity Total Market Index Fund | 26.45K | 0.05% |
Insider trades
Form 4 filings by officers, directors and large holders
Over the last 6 months, insiders bought $360.00K (1 trade) of PLYX on the open market, with no sales.
| Insider | Type | Shares | Value |
|---|---|---|---|
| Yang Alex Keun Mo | Buy | 88.45K | $360.00K |
Short interest
Settled Sep 30, 2026
- Shares short
- 143.34K
- Days to cover
- 4.45
- % of shares outstanding
- 0.29%
- Average daily volume
- 32.19K
- Change since last report
- −23.3%
Information on this page is provided for informational purposes only and is not a recommendation to buy, sell or hold any security. Investing involves risk, including possible loss of principal. Market data is delayed at least 15 minutes and is provided without warranty. Analyst ratings, price targets and company data come from third-party sources. Past performance does not guarantee future results.