Robert Chess $TWST SEC Form 4 Insider Trading

Robert Chess has filed a total of 22 insider trades in $TWST since 2021. Their most recent trade was a sale of 18,417 shares, made on Aug 07, 2026. Their largest trade was a sale of 18,417 shares, made on Aug 07, 2026. We estimate that they now own 39,501 shares of $TWST, worth an estimated $5.4 million.

Insider Trading at $TWST

There have been a total of 469 insider trades reported at $TWST since 2021, with 18,550 shares purchased and 1.6 million shares sold. The most active insider traders in $TWST stock have been Dennis Cho, Emily M. Leproust, and William Banyai. The most recent trade was a sale of 2,240 shares reported by KATRYN BLAKE (None), made on Aug 12, 2026.

$TWST Executives and Stock Owners with Insider Trades

• Dennis Cho, See Remarks

• Emily M. Leproust, Chief Executive Officer

• William Banyai, See Remarks

• Paula Green, SVP of Human Resources

• Emily M. Leproust, President & CEO

• Patrick John Finn, President and COO

• Robert F. Werner, Chief Accounting Officer

• James M Thorburn, Chief Financial Officer

• Adam Laponis, Chief Financial Officer

• Patrick John Finn, Chief Commercial Officer

• Patrick Weiss, Chief Operating Officer

• William Banyai, See Remark

*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.