David Tsao $BLLN SEC Form 4 Insider Trading

David Tsao has filed a total of 38 insider trades in $BLLN since 2021. Their most recent trade was a sale of 400 shares, made on Oct 05, 2026. Their largest trade was a sale of 10,000 shares, made on Sep 09, 2026. We estimate that they now own 11,000 shares of $BLLN, worth an estimated $1.1 million.

Insider Trading at $BLLN

There have been a total of 191 insider trades reported at $BLLN since 2021, with 52,966 shares purchased and 452,063 shares sold. The most active insider traders in $BLLN stock have been Oguzhan Atay, David Tsao, and Thomas P. Lynch. The most recent trade was a sale of 133 shares reported by Oguzhan Atay (Chairman and CEO), made on Oct 15, 2026.

$BLLN Executives and Stock Owners with Insider Trades

• Oguzhan Atay, Chairman and CEO

• David Tsao, Chief Technology Officer

• Thomas P. Lynch, See Remarks

• Nancy Joann Johnson, See Remarks

• Bosch John Roderick Ten, SVP of Laboratory Operations

• Oguzhan Atay, See Remarks

• Shan Riku Sakakibara, Chief Product Officer

• Bosch John Roderick Ten, See Remarks

*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.