Du Ying — SEC Form 4 filings
SEC reporting owner CIK 1731790. 36 Form 4 filings on record with FilingPulse; latest filed 2026-07-06.
Transaction summary — filings shown
Covers all 36 filings on record, filed 2024-03-15 to 2026-07-06. Counts and totals are arithmetic on values as filed — descriptive data, not a recommendation.
- Open-market purchases (code P, non-derivative): none reported.
- Open-market sales (code S, non-derivative): 47 legs across 23 filings — 1,113,181 shares, $30,059,785 total (shares × price as filed).
- Other reported legs (grants, option exercises, tax withholding, gifts, derivative-security transactions, …): 110.
- Largest priced transaction: sale of 50,000 shares @ $34.74 ($1,737,155) in Zai Lab Ltd, filed 2025-08-12.
By issuer — same filings
Open-market purchase/sale legs on non-derivative securities, grouped by issuer. Role is as filed on the newest filing for that issuer. Dollar totals cover priced legs only (shares × price as filed). Ordered by priced transaction value, largest first.
| Issuer | Role (as filed) | Filings | Purchases (P) | Sales (S) | Other legs |
|---|---|---|---|---|---|
| Zai Lab Ltd (ZLAB) | Chairperson & CEO, Director | 36 | — | 47 legs · 1,113,181 sh · $30,059,785 | 110 |
Form 4 filings — Du Ying
| Filed | Form | Issuer | Reported transactions | Source |
|---|---|---|---|---|
| 2026-07-06 | 4 | Zai Lab Ltd (ZLAB) | Option exercise (M): 18,000 · Tax withholding (F): 7,083 @ $19.15 · Option exercise (M): 11,048 · Tax withholding (F): 4,348 @ $19.12 · Option exercise (M): 18,000 (derivative) @ $0 · Option exercise (M): 11,048 (derivative) @ $0 · +1 more | EDGAR |
| 2026-07-01 | 4 | Zai Lab Ltd (ZLAB) | Option exercise (M): 17,970 · Sale (S): 7,026 @ $18.53 · Option exercise (M): 17,970 (derivative) @ $0 | EDGAR |
| 2026-06-29 | 4 | Zai Lab Ltd (ZLAB) | Option exercise (M): 58,800 · Sale (S): 24,543 @ $17.46 · Option exercise (M): 58,800 (derivative) @ $0 | EDGAR |
| 2026-05-28 | 4 | Zai Lab Ltd (ZLAB) | Gift (G): 19,857 @ $0 · Gift (G): 33,993 @ $0 · Gift (G): 53,850 @ $0 | EDGAR |
| 2026-05-21 | 4 | Zai Lab Ltd (ZLAB) | Option exercise (M): 261,092 @ $1.74 · Tax withholding (F): 117,435 @ $18.75 · Option exercise (M): 261,092 (derivative) @ $0 | EDGAR |
| 2026-05-19 | 4 | Zai Lab Ltd (ZLAB) | Option exercise (M): 50,000 @ $1.74 · Sale (S): 50,000 @ $20.74 · Option exercise (M): 50,000 @ $1.74 · Sale (S): 50,000 @ $19.00 · Option exercise (M): 50,000 (derivative) @ $0 · Option exercise (M): 50,000 (derivative) @ $0 | EDGAR |
| 2026-05-15 | 4 | Zai Lab Ltd (ZLAB) | Option exercise (M): 50,000 @ $1.74 · Sale (S): 16,231 @ $19.44 · Sale (S): 33,769 @ $20.22 · Option exercise (M): 50,000 @ $1.74 · Sale (S): 50,000 @ $20.09 · Option exercise (M): 50,000 (derivative) @ $0 · +1 more | EDGAR |
| 2026-04-08 | 4 | Zai Lab Ltd (ZLAB) | Sale (S): 2,653 @ $20.45 | EDGAR |
| 2026-04-03 | 4 | Zai Lab Ltd (ZLAB) | Option exercise (M): 10,800 · Option exercise (M): 3,400 · Option exercise (M): 6,750 · Sale (S): 5,576 @ $20.39 · Grant/award (A): 25,579 (derivative) @ $0 · Option exercise (M): 10,800 (derivative) @ $0 · +2 more | EDGAR |
| 2026-03-16 | 4 | Zai Lab Ltd (ZLAB) | Grant/award (A): 353,430 (derivative) @ $0 · Grant/award (A): 32,419 (derivative) @ $0 | EDGAR |
| 2026-03-12 | 4 | Zai Lab Ltd (ZLAB) | Option exercise (M): 261,092 @ $1.74 · Tax withholding (F): 116,936 @ $19.41 · Option exercise (M): 2,655 · Sale (S): 1,067 @ $19.08 · Option exercise (M): 261,092 (derivative) @ $0 · Option exercise (M): 2,655 (derivative) @ $0 | EDGAR |
| 2026-03-10 | 4 | Zai Lab Ltd (ZLAB) | Option exercise (M): 50,000 @ $1.74 · Sale (S): 50,000 @ $19.42 · Option exercise (M): 50,000 @ $1.74 · Sale (S): 50,000 @ $19.03 · Option exercise (M): 50,000 (derivative) @ $0 · Option exercise (M): 50,000 (derivative) @ $0 | EDGAR |
| 2026-03-06 | 4 | Zai Lab Ltd (ZLAB) | Option exercise (M): 50,000 @ $1.74 · Sale (S): 14,290 @ $18.78 · Sale (S): 35,710 @ $19.32 · Option exercise (M): 50,000 @ $1.74 · Sale (S): 50,000 @ $19.22 · Option exercise (M): 50,000 (derivative) @ $0 · +1 more | EDGAR |
| 2025-12-12 | 4 | Zai Lab Ltd (ZLAB) | Gift (G): 303,378 @ $0 · Gift (G): 377,520 @ $0 | EDGAR |
| 2025-09-03 | 4 | Zai Lab Ltd (ZLAB) | Option exercise (M): 604,376 @ $1.20 · Tax withholding (F): 251,319 @ $32.59 · Option exercise (M): 604,376 (derivative) @ $0 | EDGAR |
| 2025-08-14 | 4 | Zai Lab Ltd (ZLAB) | Option exercise (M): 50,000 @ $0.60 · Sale (S): 50,000 @ $34.25 · Option exercise (M): 46,387 @ $0.60 · Sale (S): 46,387 @ $35.47 · Option exercise (M): 50,000 (derivative) @ $0 · Option exercise (M): 46,387 (derivative) @ $0 | EDGAR |
| 2025-08-12 | 4 | Zai Lab Ltd (ZLAB) | Option exercise (M): 50,000 @ $0.60 · Sale (S): 50,000 @ $34.74 · Option exercise (M): 50,000 @ $0.60 · Sale (S): 50,000 @ $34.64 · Option exercise (M): 50,000 (derivative) @ $0 · Option exercise (M): 50,000 (derivative) @ $0 | EDGAR |
| 2025-07-07 | 4 | Zai Lab Ltd (ZLAB) | Grant/award (A): 44,194 (derivative) @ $0 | EDGAR |
| 2025-07-03 | 4 | Zai Lab Ltd (ZLAB) | Option exercise (M): 18,000 · Sale (S): 7,072 @ $35.23 · Option exercise (M): 18,000 (derivative) @ $0 | EDGAR |
| 2025-07-01 | 4 | Zai Lab Ltd (ZLAB) | Option exercise (M): 17,970 · Sale (S): 6,918 @ $35.52 · Option exercise (M): 17,970 (derivative) @ $0 | EDGAR |
| 2025-06-27 | 4 | Zai Lab Ltd (ZLAB) | Option exercise (M): 58,800 · Sale (S): 23,669 @ $36.13 · Option exercise (M): 58,800 (derivative) @ $0 | EDGAR |
| 2025-05-15 | 4 | Zai Lab Ltd (ZLAB) | Option exercise (M): 50,000 @ $0.60 · Sale (S): 47,780 @ $28.56 · Sale (S): 2,220 @ $28.89 · Option exercise (M): 46,389 @ $0.60 · Sale (S): 46,006 @ $28.08 · Sale (S): 383 @ $28.83 · +2 more | EDGAR |
| 2025-05-13 | 4 | Zai Lab Ltd (ZLAB) | Option exercise (M): 50,000 @ $0.60 · Sale (S): 46,362 @ $29.58 · Sale (S): 3,638 @ $30.16 · Option exercise (M): 50,000 @ $0.60 · Sale (S): 49,384 @ $29.44 · Sale (S): 616 @ $29.92 · +2 more | EDGAR |
| 2025-04-07 | 4 | Zai Lab Ltd (ZLAB) | Option exercise (M): 6,750 · Sale (S): 2,945 @ $33.11 · Option exercise (M): 6,750 (derivative) @ $0 | EDGAR |
| 2025-04-03 | 4 | Zai Lab Ltd (ZLAB) | Option exercise (M): 10,800 · Option exercise (M): 3,400 · Sale (S): 5,808 @ $35.89 · Option exercise (M): 10,800 (derivative) @ $0 · Option exercise (M): 3,400 (derivative) @ $0 | EDGAR |
| 2025-03-18 | 4 | Zai Lab Ltd (ZLAB) | Gift (G): 5,651 @ $0 · Gift (G): 10,406 @ $0 · Gift (G): 3,885 @ $0 · Gift (G): 6,521 @ $0 | EDGAR |
| 2025-03-12 | 4 | Zai Lab Ltd (ZLAB) | Grant/award (A): 252,585 (derivative) @ $0 · Grant/award (A): 10,620 (derivative) @ $0 | EDGAR |
| 2025-03-06 | 4 | Zai Lab Ltd (ZLAB) | Option exercise (M): 50,000 @ $0.60 · Sale (S): 6,665 @ $32.69 · Sale (S): 37,752 @ $33.55 · Sale (S): 5,583 @ $33.99 · Option exercise (M): 46,389 @ $0.60 · Sale (S): 21,093 @ $35.20 · +3 more | EDGAR |
| 2025-03-04 | 4 | Zai Lab Ltd (ZLAB) | Option exercise (M): 50,000 @ $0.60 · Sale (S): 2,857 @ $33.59 · Sale (S): 46,943 @ $34.52 · Sale (S): 200 @ $35.05 · Option exercise (M): 50,000 @ $0.60 · Sale (S): 23,110 @ $31.75 · +4 more | EDGAR |
| 2024-12-13 | 4 | Zai Lab Ltd (ZLAB) | Gift (G): 500,000 @ $0 | EDGAR |
| 2024-08-19 | 4 | Zai Lab Ltd (ZLAB) | Gift (G): 87,793 @ $0 | EDGAR |
| 2024-07-02 | 4 | Zai Lab Ltd (ZLAB) | Option exercise (M): 17,970 · Sale (S): 7,013 @ $17.48 · Option exercise (M): 17,970 (derivative) @ $0 · Grant/award (A): 72,000 (derivative) @ $0 | EDGAR |
| 2024-06-27 | 4 | Zai Lab Ltd (ZLAB) | Option exercise (M): 58,800 · Sale (S): 23,939 @ $17.90 · Option exercise (M): 58,800 (derivative) @ $0 | EDGAR |
| 2024-04-05 | 4 | Zai Lab Ltd (ZLAB) | Grant/award (A): 533,065 (derivative) @ $0 · Grant/award (A): 27,000 (derivative) @ $0 | EDGAR |
| 2024-04-03 | 4 | Zai Lab Ltd (ZLAB) | Option exercise (M): 10,800 @ $16.72 · Option exercise (M): 3,400 @ $16.72 · Sale (S): 4,400 @ $16.15 · Sale (S): 1,387 @ $16.15 · Option exercise (M): 10,800 (derivative) @ $0 · Option exercise (M): 3,400 (derivative) @ $0 | EDGAR |
| 2024-03-15 | 4 | Zai Lab Ltd (ZLAB) | Gift (G): 33,030 @ $0 · Gift (G): 861 @ $0 | EDGAR |
FilingPulse's Form 4 archive currently extends back to 2024-01-11 and is expanding backward through EDGAR history — earlier filings by this insider may not be indexed yet. Names and roles are shown as filed.
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