InsiderTrades

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
Buying vs selling by month open-market trades, last 24 months
BoughtSold

Most active insiders, 12 months

InsiderTitleBoughtSold
Du YingCOB, CEO, Dir —$8.58M
Edmondson Frazor Titus IIICLO —$1.01M
Amado RafaelSee Remarks —$675.0K
Lis WilliamDir —$340.0K
Smiley Joshua LSee Remarks —$294.3K
Chen YajingCFO —$239.3K
GAYNOR RICHARDDir $65.8K—
Leung NisaDir ——
Vounatsos MichelDir ——
Morrison Scott WDir ——

Transactions 321

Type
Reset
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