ZLAB Zai Lab Ltd
Nasdaq · SEC CIK 1704292 · EDGAR
- Bought, last 12 months
- $65.8K 2 purchases by 1 insiders
- Sold, last 12 months
- $11.13M 35 sales by 6 insiders
- Filings on record
- 235 since 2021-07-02, latest 2026-08-21 16:16
BoughtSold
Most active insiders, 12 months
| Insider | Title | Bought | Sold |
|---|---|---|---|
| Du Ying | COB, CEO, Dir | — | $8.58M |
| Edmondson Frazor Titus III | CLO | — | $1.01M |
| Amado Rafael | See Remarks | — | $675.0K |
| Lis William | Dir | — | $340.0K |
| Smiley Joshua L | See Remarks | — | $294.3K |
| Chen Yajing | CFO | — | $239.3K |
| GAYNOR RICHARD | Dir | $65.8K | — |
| Leung Nisa | Dir | — | — |
| Vounatsos Michel | Dir | — | — |
| Morrison Scott W | Dir | — | — |
Transactions 321
| X | Filed | Traded | Ticker | Insider | Title | Type | Price | Qty | Owned | ΔOwn | Value |
|---|---|---|---|---|---|---|---|---|---|---|---|
| T | 2026-08-21 16:16 | 2026-08-19 | ZLAB | Chen Yajing | CFO | S - Sale | $27.00 | -260 | 35.6K | -0.7% | -$7,020 |
| D | 2026-08-18 16:16 | 2026-08-14 | ZLAB | Chen Yajing | CFO | M - OptEx | — | +1,250 | 36.3K | +4% | — |
| D | 2026-08-18 16:16 | 2026-08-14 | ZLAB | Chen Yajing | CFO | F - Tax | $25.90 | -427 | 35.9K | -1% | -$11.1K |
| T | 2026-08-13 16:15 | 2026-08-12 | ZLAB | Lis William | Dir | S - Sale | $25.00 | -8,506 | 41.9K | -17% | -$212.7K |
| T | 2026-08-13 16:15 | 2026-08-11 | ZLAB | Chen Yajing | CFO | S - Sale | $25.00 | -619 | 35.1K | -2% | -$15.5K |
| T | 2026-07-06 16:14 | 2026-07-01 | ZLAB | GAYNOR RICHARD | Dir | P - Purchase | $19.05 | +1,736 | 80.7K | +2% | +$33.1K |
| DM | 2026-07-06 16:14 | 2026-07-01+ | ZLAB | Du Ying | COB, CEO, Dir | M - OptEx | — | +29.0K | 1.23M | +2% | — |
| DM | 2026-07-06 16:14 | 2026-07-01+ | ZLAB | Du Ying | COB, CEO, Dir | F - Tax | $19.14 | -11.4K | 1.22M | -0.9% | -$218.8K |
| D | 2026-07-01 16:24 | 2026-06-29 | ZLAB | Du Ying | COB, CEO, Dir | M - OptEx | — | +18.0K | 1.21M | +2% | — |
| D | 2026-07-01 16:24 | 2026-06-30 | ZLAB | Du Ying | COB, CEO, Dir | S - Sale+OE | $18.53 | -7,026 | 1.20M | -0.6% | -$130.2K |
| D | 2026-06-29 16:18 | 2026-06-25 | ZLAB | Edmondson Frazor Titus III | CLO | M - OptEx | — | +14.6K | 34.4K | +74% | — |
| D | 2026-06-29 16:18 | 2026-06-26 | ZLAB | Edmondson Frazor Titus III | CLO | S - Sale+OE | $17.46 | -4,103 | 30.3K | -12% | -$71.6K |
| D | 2026-06-29 16:17 | 2026-06-25 | ZLAB | Du Ying | COB, CEO, Dir | M - OptEx | — | +58.8K | 1.22M | +5% | — |
| D | 2026-06-29 16:17 | 2026-06-26 | ZLAB | Du Ying | COB, CEO, Dir | S - Sale+OE | $17.46 | -24.5K | 1.19M | -2% | -$428.5K |
| D | 2026-06-29 16:17 | 2026-06-25 | ZLAB | Chen Yajing | CFO | M - OptEx | — | +6,250 | 38.0K | +20% | — |
| D | 2026-06-29 16:17 | 2026-06-26 | ZLAB | Chen Yajing | CFO | S - Sale+OE | $17.46 | -2,264 | 35.7K | -6% | -$39.5K |
| T | 2026-06-24 16:05 | 2026-06-22 | ZLAB | Lis William | Dir | S - Sale | $18.09 | -7,040 | 50.4K | -12% | -$127.4K |
| 2026-06-22 16:08 | 2026-06-17 | ZLAB | GAYNOR RICHARD | Dir | A - Grant | $0.00 | +22.4K | 79.0K | +40% | $0 | |
| 2026-06-22 16:08 | 2026-06-17 | ZLAB | Morrison Scott W | Dir | A - Grant | $0.00 | +22.4K | 56.9K | +65% | $0 | |
| 2026-06-22 16:08 | 2026-06-17 | ZLAB | Vounatsos Michel | Dir | A - Grant | $0.00 | +22.4K | 72.8K | +44% | $0 | |
| 2026-06-22 16:08 | 2026-06-17 | ZLAB | Lis William | Dir | A - Grant | $0.00 | +22.4K | 57.5K | +64% | $0 | |
| 2026-06-22 16:08 | 2026-06-17 | ZLAB | DIEKMAN JOHN D | Dir | A - Grant | $0.00 | +22.4K | 122.1K | +22% | $0 | |
| 2026-06-22 16:08 | 2026-06-17 | ZLAB | WIRTH PETER | Dir | A - Grant | $0.00 | +22.4K | 416.1K | +6% | $0 | |
| 2026-06-22 16:08 | 2026-06-17 | ZLAB | MOULDER LEON O JR | Dir | A - Grant | $0.00 | +22.4K | 95.0K | +31% | $0 | |
| 2026-06-22 16:08 | 2026-06-17 | ZLAB | Leung Nisa | Dir | A - Grant | $0.00 | +22.4K | 96.3K | +30% | $0 | |
| M | 2026-05-28 16:19 | 2026-05-26+ | ZLAB | Du Ying | COB, CEO, Dir | G - Gift | $0.00 | -107.7K | 1.16M | -9% | $0 |
| DT | 2026-05-21 16:19 | 2026-05-19 | ZLAB | Du Ying | COB, CEO, Dir | M - OptEx | $1.74 | +261.1K | 1.38M | +23% | +$454.3K |
| DT | 2026-05-21 16:19 | 2026-05-19 | ZLAB | Du Ying | COB, CEO, Dir | F - Tax | $18.75 | -117.4K | 1.27M | -8% | -$2.20M |
| DMT | 2026-05-19 16:18 | 2026-05-15+ | ZLAB | Du Ying | COB, CEO, Dir | M - OptEx | $1.74 | +100.0K | 1.17M | +9% | +$174.0K |
| DMT | 2026-05-19 16:18 | 2026-05-15+ | ZLAB | Du Ying | COB, CEO, Dir | S - Sale+OE | $19.87 | -100.0K | 1.12M | -8% | -$1.99M |
| T | 2026-05-15 16:46 | 2026-05-14 | ZLAB | Edmondson Frazor Titus III | CLO | S - Sale | $20.19 | -3,517 | 19.8K | -15% | -$71.0K |
| DMT | 2026-05-15 16:45 | 2026-05-13+ | ZLAB | Du Ying | COB, CEO, Dir | M - OptEx | $1.74 | +100.0K | 1.17M | +9% | +$174.0K |
| DMT | 2026-05-15 16:45 | 2026-05-13+ | ZLAB | Du Ying | COB, CEO, Dir | S - Sale+OE | $20.03 | -100.0K | 1.12M | -8% | -$2.00M |
| 2026-04-08 19:35 | 2026-04-06 | ZLAB | Smiley Joshua L | See Remarks | S - Sale | $20.45 | -3,017 | 117.6K | -3% | -$61.7K | |
| 2026-04-08 19:34 | 2026-04-06 | ZLAB | Edmondson Frazor Titus III | CLO | S - Sale | $20.45 | -1,224 | 23.4K | -5% | -$25.0K | |
| 2026-04-08 19:34 | 2026-04-06 | ZLAB | Du Ying | COB, CEO, Dir | S - Sale | $20.45 | -2,653 | 1.12M | -0.2% | -$54.2K | |
| 2026-04-08 19:33 | 2026-04-06 | ZLAB | Chen Yajing | CFO | S - Sale | $20.45 | -853 | 31.7K | -3% | -$17.4K | |
| 2026-04-08 19:33 | 2026-04-06 | ZLAB | Amado Rafael | See Remarks | S - Sale | $20.45 | -2,739 | 57.0K | -5% | -$56.0K | |
| DM | 2026-04-03 17:59 | 2026-04-01+ | ZLAB | Smiley Joshua L | See Remarks | M - OptEx | — | +39.2K | 130.2K | +43% | — |
| D | 2026-04-03 17:59 | 2026-04-02 | ZLAB | Smiley Joshua L | See Remarks | S - Sale+OE | $20.39 | -9,614 | 120.6K | -7% | -$196.0K |
| DM | 2026-04-03 17:58 | 2026-04-01+ | ZLAB | Edmondson Frazor Titus III | CLO | M - OptEx | — | +22.3K | 28.8K | +343% | — |
| D | 2026-04-03 17:58 | 2026-04-02 | ZLAB | Edmondson Frazor Titus III | CLO | S - Sale+OE | $20.39 | -4,194 | 24.6K | -15% | -$85.5K |
| DM | 2026-04-03 17:58 | 2026-04-01+ | ZLAB | Du Ying | COB, CEO, Dir | M - OptEx | — | +20.9K | 1.13M | +2% | — |
| D | 2026-04-03 17:58 | 2026-04-02 | ZLAB | Du Ying | COB, CEO, Dir | S - Sale+OE | $20.39 | -5,576 | 1.13M | -0.5% | -$113.7K |
| DM | 2026-04-03 17:57 | 2026-04-01+ | ZLAB | Chen Yajing | CFO | M - OptEx | — | +17.8K | 37.8K | +89% | — |
| D | 2026-04-03 17:57 | 2026-04-02 | ZLAB | Chen Yajing | CFO | S - Sale+OE | $20.39 | -5,199 | 32.6K | -14% | -$106.0K |
| DM | 2026-04-03 17:57 | 2026-04-01+ | ZLAB | Amado Rafael | See Remarks | M - OptEx | — | +24.9K | 69.7K | +56% | — |
| D | 2026-04-03 17:57 | 2026-04-02 | ZLAB | Amado Rafael | See Remarks | S - Sale+OE | $20.39 | -9,910 | 59.8K | -14% | -$202.1K |
| T | 2026-03-19 | 2026-03-17 | ZLAB | GAYNOR RICHARD | Dir | P - Purchase | $18.91 | +1,731 | 56.6K | +3% | +$32.7K |
| D | 2026-03-16 | 2026-03-12 | ZLAB | Smiley Joshua L | See Remarks | M - OptEx | — | +6,388 | 93.0K | +7% | — |
| D | 2026-03-16 | 2026-03-13 | ZLAB | Smiley Joshua L | See Remarks | S - Sale+OE | $18.63 | -1,966 | 91.0K | -2% | -$36.6K |
| D | 2026-03-16 | 2026-03-12 | ZLAB | Edmondson Frazor Titus III | CLO | M - OptEx | — | +4,258 | 7,775 | +121% | — |
| D | 2026-03-16 | 2026-03-13 | ZLAB | Edmondson Frazor Titus III | CLO | S - Sale+OE | $18.63 | -1,281 | 6,494 | -16% | -$23.9K |
| D | 2026-03-16 | 2026-03-13 | ZLAB | Amado Rafael | See Remarks | S - Sale+OE | $18.63 | -2,957 | 44.8K | -6% | -$55.1K |
| D | 2026-03-16 | 2026-03-12 | ZLAB | Amado Rafael | See Remarks | M - OptEx | — | +5,323 | 47.7K | +13% | — |
| D | 2026-03-16 | 2026-03-13 | ZLAB | Chen Yajing | CFO | S - Sale+OE | $18.63 | -1,703 | 20.0K | -8% | -$31.7K |
| D | 2026-03-16 | 2026-03-12 | ZLAB | Chen Yajing | CFO | M - OptEx | — | +4,258 | 21.7K | +24% | — |
| DT | 2026-03-12 | 2026-03-10 | ZLAB | Du Ying | COB, CEO, Dir | F - Tax | $19.41 | -116.9K | 1.11M | -10% | -$2.27M |
| DMT | 2026-03-12 | 2026-03-10 | ZLAB | Du Ying | COB, CEO, Dir | M - OptEx | $1.74 | +263.7K | 1.23M | +27% | +$458.9K |
| DT | 2026-03-12 | 2026-03-11 | ZLAB | Du Ying | COB, CEO, Dir | S - Sale+OE | $19.08 | -1,067 | 1.11M | -0.1% | -$20.4K |
| DMT | 2026-03-10 | 2026-03-06+ | ZLAB | Du Ying | COB, CEO, Dir | M - OptEx | $1.74 | +100.0K | 1.01M | +11% | +$174.0K |
| DMT | 2026-03-10 | 2026-03-06+ | ZLAB | Du Ying | COB, CEO, Dir | S - Sale+OE | $19.23 | -100.0K | 964.2K | -9% | -$1.92M |
| T | 2026-03-06 | 2026-03-05 | ZLAB | Edmondson Frazor Titus III | CLO | S - Sale | $19.06 | -15.6K | 3,517 | -82% | -$296.7K |
| DMT | 2026-03-06 | 2026-03-04+ | ZLAB | Du Ying | COB, CEO, Dir | S - Sale+OE | $19.19 | -100.0K | 964.2K | -9% | -$1.92M |
| DMT | 2026-03-06 | 2026-03-04+ | ZLAB | Du Ying | COB, CEO, Dir | M - OptEx | $1.74 | +100.0K | 1.01M | +11% | +$174.0K |
| T | 2026-03-05 | 2026-03-03 | ZLAB | Amado Rafael | See Remarks | S - Sale | $17.38 | -10.0K | 42.4K | -19% | -$173.8K |
| D | 2026-01-02 | 2025-12-30 | ZLAB | Amado Rafael | See Remarks | M - OptEx | — | +21.0K | 63.2K | +50% | — |
| D | 2026-01-02 | 2025-12-31 | ZLAB | Amado Rafael | See Remarks | S - Sale+OE | $17.43 | -10.8K | 52.4K | -17% | -$188.0K |
| T | 2025-12-18 | 2025-12-16 | ZLAB | Edmondson Frazor Titus III | CLO | S - Sale | $17.14 | -8,651 | 19.1K | -31% | -$148.3K |
| M | 2025-12-12 | 2025-12-10+ | ZLAB | Du Ying | COB, CEO, Dir | G - Gift | $0.00 | +74.1K | 964.2K | +8% | $0 |
| T | 2025-11-25 | 2025-11-21 | ZLAB | Edmondson Frazor Titus III | CLO | S - Sale | $19.78 | -14.3K | 27.7K | -34% | -$283.4K |
| D | 2025-11-04 | 2025-11-03 | ZLAB | Chen Yajing | CFO | S - Sale+OE | $26.83 | -240 | 17.4K | -1% | -$6,439 |
| D | 2025-11-04 | 2025-10-31 | ZLAB | Chen Yajing | CFO | M - OptEx | — | +500 | 17.7K | +3% | — |
| D | 2025-10-03 | 2025-10-02 | ZLAB | Chen Yajing | CFO | S - Sale+OE | $34.25 | -456 | 17.2K | -3% | -$15.6K |
| D | 2025-10-03 | 2025-10-01 | ZLAB | Chen Yajing | CFO | M - OptEx | — | +920 | 17.6K | +6% | — |
| 2025-09-12 | 2025-09-10 | ZLAB | Smiley Joshua L | See Remarks | P - Purchase | $28.91 | +10.0K | 86.6K | +13% | +$289.1K | |
| D | 2025-09-03 | 2025-08-29 | ZLAB | Du Ying | COB, CEO, Dir | M - OptEx | $1.20 | +604.4K | 1.14M | +113% | +$725.3K |
| D | 2025-09-03 | 2025-08-29 | ZLAB | Du Ying | COB, CEO, Dir | F - Tax | $32.59 | -251.3K | 890.0K | -22% | -$8.19M |
| D | 2025-08-19 | 2025-08-15 | ZLAB | Smiley Joshua L | See Remarks | M - OptEx | — | +15.9K | 83.2K | +24% | — |
| D | 2025-08-19 | 2025-08-18 | ZLAB | Smiley Joshua L | See Remarks | S - Sale+OE | $36.24 | -6,641 | 76.6K | -8% | -$240.7K |
| D | 2025-08-19 | 2025-08-15 | ZLAB | Edmondson Frazor Titus III | CLO | M - OptEx | — | +4,850 | 43.9K | +12% | — |
| D | 2025-08-19 | 2025-08-18 | ZLAB | Edmondson Frazor Titus III | CLO | S - Sale+OE | $36.24 | -1,883 | 42.1K | -4% | -$68.2K |
| DT | 2025-08-18 | 2025-08-14 | ZLAB | Chen Yajing | CFO | M - OptEx | — | +1,250 | 18.2K | +7% | — |
| DMT | 2025-08-18 | 2025-08-15 | ZLAB | Chen Yajing | CFO | S - Sale+OE | $35.42 | -1,438 | 17.5K | -8% | -$50.9K |
| DMT | 2025-08-14 | 2025-08-12+ | ZLAB | Du Ying | COB, CEO, Dir | S - Sale+OE | $34.84 | -96.4K | 537.0K | -15% | -$3.36M |
| DMT | 2025-08-14 | 2025-08-12+ | ZLAB | Du Ying | COB, CEO, Dir | M - OptEx | $0.6 | +96.4K | 583.3K | +20% | +$57.8K |
| T | 2025-08-12 | 2025-08-08 | ZLAB | Amado Rafael | See Remarks | S - Sale | $35.00 | -3,000 | 42.2K | -7% | -$105.0K |
| T | 2025-08-12 | 2025-08-08 | ZLAB | Chen Yajing | CFO | S - Sale | $34.01 | -4,096 | 16.9K | -20% | -$139.3K |
| DMT | 2025-08-12 | 2025-08-08+ | ZLAB | Du Ying | COB, CEO, Dir | S - Sale+OE | $34.69 | -100.0K | 537.0K | -16% | -$3.47M |
| DMT | 2025-08-12 | 2025-08-08+ | ZLAB | Du Ying | COB, CEO, Dir | M - OptEx | $0.6 | +100.0K | 587.0K | +21% | +$60.0K |
| D | 2025-07-03 | 2025-07-02 | ZLAB | Du Ying | COB, CEO, Dir | S - Sale+OE | $35.23 | -7,072 | 537.0K | -1% | -$249.1K |
| D | 2025-07-03 | 2025-07-01 | ZLAB | Du Ying | COB, CEO, Dir | M - OptEx | — | +18.0K | 544.0K | +3% | — |
| D | 2025-07-01 | 2025-06-27 | ZLAB | Du Ying | COB, CEO, Dir | M - OptEx | — | +18.0K | 533.0K | +3% | — |
| D | 2025-07-01 | 2025-06-30 | ZLAB | Du Ying | COB, CEO, Dir | S - Sale+OE | $35.52 | -6,918 | 526.0K | -1% | -$245.7K |
| D | 2025-06-27 | 2025-06-25 | ZLAB | Edmondson Frazor Titus III | CLO | M - OptEx | — | +14.6K | 45.0K | +48% | — |
| D | 2025-06-27 | 2025-06-26 | ZLAB | Edmondson Frazor Titus III | CLO | S - Sale+OE | $36.13 | -5,877 | 39.1K | -13% | -$212.3K |
| D | 2025-06-27 | 2025-06-25 | ZLAB | Chen Yajing | CFO | M - OptEx | — | +6,250 | 23.7K | +36% | — |
| D | 2025-06-27 | 2025-06-26 | ZLAB | Chen Yajing | CFO | S - Sale+OE | $36.13 | -2,675 | 21.0K | -11% | -$96.6K |
| D | 2025-06-27 | 2025-06-26 | ZLAB | Du Ying | COB, CEO, Dir | S - Sale+OE | $36.13 | -23.7K | 515.0K | -4% | -$855.2K |
| D | 2025-06-27 | 2025-06-25 | ZLAB | Du Ying | COB, CEO, Dir | M - OptEx | — | +58.8K | 538.7K | +12% | — |
Purchase Sale Sale after option exercise All abbreviations