SEC Insider Transactions from Tsao David.

Last updated: 2026-03-14 11:11 UTC | Total transactions: 9

Tsao David, Chief Technology Officer at BillionToOne, Inc. ($BLLN), made one open market purchase of company shares worth $60,000 in the last 365 days, with the most recent on November 7, 2025. This ranks him 2810th among nearly 5,000 insiders by purchase amount, below the average of 1.46 million dollars across about 3.3 transactions per insider. He reported no open market sales.

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Transaction Date Company Ticker Insider Name Title Transaction Type Security Shares Price Shares Owned Following Total Shares Outstanding % of Owned % of Outstanding
Nov. 7, 2025 BillionToOne, Inc. $BLLN Tsao David Chief Technology Officer J Common Stock 2325108 $0.00 0.0000 0 100.00% 0.00%
Nov. 7, 2025 BillionToOne, Inc. $BLLN Tsao David Chief Technology Officer J Class A Common Stock 2325108 $0.00 2,325,108.0000 0 9999.99% 0.00%
Nov. 7, 2025 BillionToOne, Inc. $BLLN Tsao David Chief Technology Officer J Class A Common Stock 2325108 $0.00 0.0000 0 100.00% 0.00%
Nov. 7, 2025 BillionToOne, Inc. $BLLN Tsao David Chief Technology Officer P Class A Common Stock 1000 $60.00 1,000.0000 0 9999.99% 0.00%
Nov. 7, 2025 BillionToOne, Inc. $BLLN Tsao David Chief Technology Officer J Class B Common Stock 2325108 $0.00 2,325,108.0000 0 9999.99% 0.00%
Nov. 7, 2025 BillionToOne, Inc. $BLLN Tsao David Chief Technology Officer J Stock Option (right to buy) 640000 $0.00 0.0000 0 100.00% 0.00%
Nov. 7, 2025 BillionToOne, Inc. $BLLN Tsao David Chief Technology Officer J Stock Option (right to buy) 640000 $0.00 640,000.0000 0 9999.99% 0.00%
Nov. 7, 2025 BillionToOne, Inc. $BLLN Tsao David Chief Technology Officer J Stock Option (right to buy) 501551 $0.00 0.0000 0 100.00% 0.00%
Nov. 7, 2025 BillionToOne, Inc. $BLLN Tsao David Chief Technology Officer J Stock Option (right to buy) 501551 $0.00 501,551.0000 0 9999.99% 0.00%