BillionToOne, Inc. BLLN

Set alert

110.45 USD +0.04 (+0.04%)

At closeNov 3, 2026, 4:00 PM EST

110.45 0.00 0.00%

After hours · Nov 3, 4:00 PM ET

109.56 Day range 113.40

61.96 52-week range 150.44

Held by insiders 28.36%

Held by institutions 45.70%

Float held by institutions 63.79%

Institutions 204

Top institutional holders
Holder	% held	Shares	Value	Reported
Adams Street Partners, LLC	4.01%	1,711,430	189.03M	Jun 29, 2026
Price (T.Rowe) Associates Inc	2.37%	1,010,322	111.59M	Jun 29, 2026
BAILLIE GIFFORD & CO	2.11%	901,420	99.56M	Jun 29, 2026
Vanguard Portfolio Management LLC	1.97%	840,970	92.89M	Jun 29, 2026
Invesco Ltd.	1.96%	835,614	92.29M	Jun 29, 2026
Vanguard Capital Management LLC	1.87%	799,468	88.30M	Jun 29, 2026

Top mutual fund holders
Holder	% held	Shares	Value	Reported
VANGUARD INDEX FUNDS-Vanguard Total Stock Market Index Fund	1.70%	724,088	79.98M	Jun 29, 2026
AIM Counselor Series TRT -Invesco Discovery Fd.	1.25%	531,370	58.69M	Aug 30, 2026
VANGUARD INDEX FUNDS-Vanguard Small-Cap Index Fund	1.23%	522,864	57.75M	Jun 29, 2026
T. Rowe Price Health Sciences Fund, Inc.	0.89%	377,575	41.70M	Jun 29, 2026
BARON INVESTMENT Fd.S TRT -BARON DISCOVERY Fd.	0.67%	286,830	31.68M	Jun 29, 2026
Capitol Series Trust-FullerThaler Behavioral Small-Cap Growth Fund	0.64%	275,000	30.37M	Jun 29, 2026

BLLN insiders
Insider	Relation	Latest transaction	Date	Shares held
ATAY OGUZHAN PH.D.	Chief Executive Officer	Sale	Oct 11, 2026	0
BREMNER THOMAS S.	Director	Stock Award(Grant)	Jun 9, 2026	11,350
HUMMING BIRD VENTURES MANAGEMENT NV	Beneficial Owner of more than 10% of a Class of Security	Conversion of Exercise of derivative security	Nov 6, 2025	0
ILERI FIRAT	Director and Beneficial Owner of more than 10% of a Class of Security	Stock Award(Grant)	Jun 9, 2026	40,331
KOLLURI KRISHNA KITTU	Director and Beneficial Owner of more than 10% of a Class of Security	Stock Award(Grant)	Jun 9, 2026	11,350
LYNCH THOMAS P	General Counsel	Conversion of Exercise of derivative security	Oct 12, 2026	10,700

Held by funds