Zai Lab Ltd (ZLAB) insider trading.
In Q3 2026, insiders at Zai Lab Ltd reported 12 non-derivative transactions on 7 Forms 3, 4 and 5: 1 open-market purchase worth $33K and 4 sales worth $365K.
- Transactions
- 12
- Purchases (P)
- 1
- Sales (S)
- 4
- Net shares, P minus S
- -14,675
- Insiders
- 4
- Last filed
- 2026-08-21
Insiders
| Insider | Relationship | Transactions | Buys | Sales |
|---|---|---|---|---|
| Du Ying | Director, Officer · Chairperson & CEO | 6 | 0 | 1 |
| Chen Yajing | Officer · Chief Financial Officer | 4 | 0 | 2 |
| Lis William | Director | 1 | 0 | 1 |
| Gaynor Richard | Director | 1 | 1 | 0 |
Transactions
| Date | Insider | Code | Shares | Price | Owned after | Filing |
|---|---|---|---|---|---|---|
| 2026-08-19 | Chen Yajing | S (D) | 260 | $27 | 35,635 | Form 4 |
| 2026-08-14 | Chen Yajing | M (A) | 1,250 | — | 36,322 | Form 4 |
| 2026-08-14 | Chen Yajing | F (D) | 427 | $25.9 | 35,895 | Form 4 |
| 2026-08-12 | Lis William | S (D) | 8,506 | $25 | 41,931 | Form 4 |
| 2026-08-11 | Chen Yajing | S (D) | 619 | $25 | 35,072 | Form 4 |
| 2026-07-02 | Du Ying | F (D) | 4,348 | $19.12 | 1,221,401 | Form 4 |
| 2026-07-02 | Du Ying | M (A) | 11,048 | — | 1,225,749 | Form 4 |
| 2026-07-01 | Du Ying | F (D) | 7,083 | $19.15 | 1,214,701 | Form 4 |
| 2026-07-01 | Du Ying | M (A) | 18,000 | — | 1,221,784 | Form 4 |
| 2026-07-01 | Gaynor Richard | P (A) | 1,736 | $19.05 | 80,737 | Form 4 |
| 2026-06-30 | Du Ying | S (D) | 7,026 | $18.53 | 1,203,784 | Form 4 |
| 2026-06-29 | Du Ying | M (A) | 17,970 | — | 1,210,810 | Form 4 |
Transaction codes in this quarter
Get ZLAB insider transactions through the API
curl "https://sec-api.dev/api/v1/insider-transactions?period=2026q3&cik=1704292&limit=100" \
-H "Authorization: Bearer $SEC_API_KEY"Insider trading API guide · ZLAB company page · Zai Lab Ltd on SEC.gov
Questions
Are insiders buying or selling Zai Lab Ltd (ZLAB)?
In Q3 2026, insiders at Zai Lab Ltd reported 12 non-derivative transactions on 7 Forms 3, 4 and 5: 1 open-market purchase worth $33K and 4 sales worth $365K. Grants, tax withholding and option exercises are counted as transactions but are not purchases or sales.
Where do these Zai Lab Ltd insider trades come from?
From the SEC Insider Transactions Data Sets for Q3 2026, which republish the Forms 3, 4 and 5 filed on EDGAR. Each row links to its filing on SEC.gov.
Plain-text version for agents and LLMs: /insider-trading/zlab.md
Independent. Not affiliated with, endorsed by, or sponsored by the U.S. Securities and Exchange Commission. Data is reproduced from public SEC filings and datasets. Not investment advice.