Lynch Thomas P., General Counsel, Chief Compliance Officer and Secretary exercised 5,840 shares of BillionToOne, Inc. ($BLLN) @ $30.78 ($179,755.20 total) on Sep 17, 2026

Lynch Thomas P. – General Counsel, Chief Compliance Officer and Secretary

Sep 17, 2026

52W Low$61.96

Current$103.8647.4% above low, 52.6% below high

Purchase$30.78-35.2% above low, 135.2% below high

52W High$150.44

5,840

Price

$30.78

Total Value

$179,755.20

Nearby Earnings

No earnings within 2 weeks of this transaction.

Insider	Lynch Thomas P.
Title	General Counsel, Chief Compliance Officer and Secretary
Transaction Date	Sep 17, 2026
Expiration Date	Sep 30, 2035
Transaction Code	M Exercise/Conversion
Acquired/Disposed	Disposed
Security	Stock Option (right to buy) (Class A Common Stock)
Derivative	Yes
Direct/Indirect	Direct
Filing Date	Sep 21, 2026
Shares Purchased	5,840
Price per Share	$30.78
Total Value	$179,755.20
Shares Owned After	30,834
Derivative	Derivative (Class A Common Stock)
Accession Number	0002070849-26-000069
Document	View SEC Filing