YC
Insider
Yajing Chen
Chief Financial OfficerYajing Chen (Chief Financial Officer) filed 1 Form 4 report in the trailing twelve months (0 purchases, 1 sale), most often in Zai Lab Limited (ZLAB). The largest single filing was $106K of ZLAB (5,199 sh × $20.39, as filed), executed Apr 2.
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
1
0 buys · 1 sells
Median delay
–
execution → disclosure
Volume, ttmiDollar value disclosed in the trailing twelve months
$106K
shares × price, as filed
Last traded
Apr 2
Filed Apr 3
Median ADV $26.3M across their filed names
Open performance→Volume by month
Buys $0
Sells $723K
Shares × price, as filed · by filing month · past 24 months
Sectors filed on
Healthcare
1 filing
Sector per market data · by filing · past 12 months
Most traded names
ZLABRecent filings
ZLABSALE
Zai Lab Limited
View filing →
$106K5,199 sh × $20.39
Exec Apr 2
Filed Apr 3 · 5:30 PM ET ZLABSALE Zai Lab Limited View filing → $139K
4,096 sh × $34.01
Exec Aug 8 2025
Filed Aug 12 2025 · 5:30 PM ET ZLABSALE Zai Lab Limited View filing → $289K
9,618 sh × $30.00
Exec Jun 2 2025
Filed Jun 4 2025 · 5:30 PM ET ZLABSALE Zai Lab Limited View filing → $189K
5,280 sh × $35.89
Exec Apr 2 2025
Filed Apr 3 2025 · 5:30 PM ET