Polaryx Therapeutics, Inc. Common Stock (PLYX) ownership: Top institutional holder: VANGUARD CAPITAL MANAGEMENT LLC ($12.54M). Insider activity: Net Seller (0 buys, 1 sells). SEC EDGAR first-party data.
| Holder | Shares | Market Value | Reported |
|---|---|---|---|
| VANGUARD CAPITAL MANAGEMENT LLC | 1658388.00 | $12.54M | 2026-03-31 |
| GEODE CAPITAL MANAGEMENT, LLC | 170673.00 | $1.29M | 2026-03-31 |
| MILLENNIUM MANAGEMENT LLC | 127525.00 | $964089.00 | 2026-03-31 |
| VANGUARD FIDUCIARY TRUST CO | 104556.00 | $790443.00 | 2026-03-31 |
| STATE STREET CORP | 58104.00 | $439266.00 | 2026-03-31 |
| BlackRock, Inc. | 41012.00 | $310051.00 | 2026-03-31 |
| NORTHERN TRUST CORP | 27987.00 | $211582.00 | 2026-03-31 |
| BANK OF AMERICA CORP /DE/ | 25881.00 | $195660.00 | 2026-03-31 |
| Insider | Transaction | Value | Date |
|---|---|---|---|
| Sell | null | 2026-02-18 |
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Institutional data from SEC Form 13F. Insider data from SEC Form 4. Congressional data from STOCK Act disclosures. Not personalized investment advice.