🕵️ Polaryx Therapeutics, Inc. ($PLYX)
SEC insider & ownership activity, last 12 months · CIK 2075320 · every row links its SEC filing
Over the last 12 months insiders bought $368K with no open-market selling against it. Yang Alex Keun Mo bought $360K in discretionary trades (May). No red-flag 8-Ks in the window.
Monthly net open-market insider flow, last 12 months (up = net buying)
Insider flow
2 buyers, $368K (2 lots) · 0 sellers, $0 (0 lots)
| Insider | Buys | Bought | Sells | Sold | Last |
|---|---|---|---|---|---|
| Yang Alex Keun Mo | 1 | $360K | 0 | – | May 27, 2026 |
| Landis G. Michael | 1 | $8K | 0 | – | Feb 18, 2026 |
5%+ holders
| Holder | Stake | Class | Schedule | Event | |
|---|---|---|---|---|---|
| Alex Keun Mo Yang | 48.0% | 13D | Jan 29, 2026 | filing ↗ | |
| Mstone Partners Healthcare Limited | 47.4% | 13D | Jan 29, 2026 | filing ↗ |
Planned insider sales (Form 144)
No sale notices filed in the last 12 months.
Material events (8-K)
| Item | Event date | |
|---|---|---|
| Officer/director changes (5.02) | Jul 19, 2026 | filing ↗ |
| Shareholder Nominations Pursuant to Exchange Act Rule 14a-11 (5.08) | Jul 16, 2026 | filing ↗ |
| Other events (8.01) | Jul 16, 2026 | filing ↗ |
| Material agreement (1.01) | May 27, 2026 | filing ↗ |
| Unregistered equity sale (3.02) | May 27, 2026 | filing ↗ |
| Reg FD disclosure (7.01) | May 27, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | May 27, 2026 | filing ↗ |