Ying Du $ZLAB SEC Form 4 Insider Trading

Ying Du has filed a total of 72 insider trades in $ZLAB since 2021. Their most recent trade was a sale of 1,067 shares, made on Mar 11, 2026. Their largest trade was a sale of 60,405 shares, made on Aug 02, 2021. We estimate that they now own 994,089 shares of $ZLAB, worth an estimated $18.8 million.

Insider Trading at $ZLAB

There have been a total of 198 insider trades reported at $ZLAB since 2021, with 30,731 shares purchased and 1.6 million shares sold. The most active insider traders in $ZLAB stock have been Ying Du, Ying Du, and Tao Fu. The most recent trade was a purchase of 1,731 shares reported by RICHARD GAYNOR (None), made on Mar 17, 2026.

$ZLAB Executives and Stock Owners with Insider Trades

• Ying Du, Chairwoman & CEO

• Ying Du, Chairperson & CEO

• Tao Fu, President & COO

• Frazor Titus Iii Edmondson, Chief Legal Officer

• Yajing Chen, Chief Financial Officer

• Harald Reinhart, Chief Medical Officer

• Rafael Amado, See Remarks

• Joshua L Smiley, See Remarks

• Harald Reinhart, See Remarks

• William Ki Chul Cho, Chief Financial Officer

*This is only based off of information found in SEC filings, and may not reflect actual net worth. There may also be inaccuracies due to privately holdings filing errors, parsing errors, accidental double-counting of shares, incorrect classification of indirectly owned shares, sales prior to dataset start date, or any other number of issues.