YD
Insider
Ying Du
Chairperson & CEOYing Du (Chairperson & CEO) filed 7 Form 4 reports in the trailing twelve months (0 purchases, 7 sales), most often in Zai Lab Limited (ZLAB). The largest single filing was $2.0M of ZLAB (100,000 sh across 3 lots, as filed), executed May 13.
Add to watchlistReturn, ttmiAverage return per filing, trailing twelve months
–
no purchases on file
Delay-adjustediThe same average, entered at disclosure dates
–
returns measure stock purchases only
Filings, ttm
7
0 buys · 7 sells
Median delay
–
execution → disclosure
Volume, ttmiDollar value disclosed in the trailing twelve months
$8.5M
shares × price, as filed
Last traded
Jun 30
Filed Jul 1
Median ADV $26.3M across their filed names
Open performance→Volume by month
Buys $0
Sells $29.0M
Shares × price, as filed · by filing month · past 24 months
Sectors filed on
Healthcare
7 filings
Sector per market data · by filing · past 12 months
Most traded names
ZLABRecent filings
ZLABSALE
Zai Lab Limited
View filing →
$3.5M100,000 sh across 2 lots
Exec Aug 8 2025
Filed Aug 12 2025 · 5:30 PM ET ZLABSALE Zai Lab Limited View filing → $249K
7,072 sh × $35.23
Exec Jul 2 2025
Filed Jul 3 2025 · 5:30 PM ET ZLABSALE Zai Lab Limited View filing → $246K
6,918 sh × $35.52
Exec Jun 30 2025
Filed Jul 1 2025 · 5:30 PM ET ZLABSALE Zai Lab Limited View filing → $855K
23,669 sh × $36.13
Exec Jun 26 2025
Filed Jun 27 2025 · 5:30 PM ET ZLABSALE Zai Lab Limited View filing → $2.7M
93,786 sh across 2 lots
Exec May 13 2025
Filed May 15 2025 · 5:30 PM ET ZLABSALE Zai Lab Limited View filing → $2.9M
99,384 sh across 3 lots
Exec May 9 2025
Filed May 13 2025 · 5:30 PM ET ZLABSALE Zai Lab Limited View filing → $208K
5,808 sh × $35.89
Exec Apr 2 2025
Filed Apr 3 2025 · 5:30 PM ET ZLABSALE Zai Lab Limited View filing → $3.3M
96,389 sh across 5 lots
Exec Mar 4 2025
Filed Mar 6 2025 · 5:30 PM ET More filings →