4 Form 4 filings for ZLAB between 2026-08-13 and 2026-08-21, from 2 filers. 4 discretionary (3 sales, 1 purchases). None state a filing-level total — that aggregate began on 2026-08-17 — so each row below shows only its largest transaction. Prices ran $25 to $27.
| Filed | Filer | Role | Action | Shares largest txn | Price | Filing total | Txns |
|---|---|---|---|---|---|---|---|
| 2026-08-21 | Chen Yajing | sold | 260 | $27.00 | — | — | |
| 2026-08-18 | Chen Yajing | acquired | 1,250 | — | — | 2 | |
| 2026-08-13 | Lis William | sold | 8,506 | $25.00 | — | — | |
| 2026-08-13 | Chen Yajing | sold | 619 | $25.00 | — | — | |
| 4 filings · 2 filers · disclosed totals only | $0 (0/4) | — | |||||