BillionToOne, Inc. BLLN

Set alert

113.94 USD +1.55 (+1.38%)

At closeNov 6, 2026, 4:00 PM EST

115.26 +1.32 +1.16%

After hours · Nov 6, 4:00 PM ET

106.15 Day range 114.09

61.96 52-week range 150.44

Held by insiders 28.02%

Held by institutions 45.04%

Float held by institutions 62.57%

Institutions 203

Top institutional holders
Holder	% held	Shares	Value	Reported
Adams Street Partners, LLC	3.96%	1,711,430	195.00M	Jun 29, 2026
Price (T.Rowe) Associates Inc	2.33%	1,010,322	115.12M	Jun 29, 2026
BAILLIE GIFFORD & CO	2.08%	901,420	102.71M	Jun 29, 2026
Vanguard Portfolio Management LLC	1.94%	840,970	95.82M	Jun 29, 2026
Invesco Ltd.	1.93%	835,614	95.21M	Jun 29, 2026
Vanguard Capital Management LLC	1.85%	799,468	91.09M	Jun 29, 2026

Top mutual fund holders
Holder	% held	Shares	Value	Reported
VANGUARD INDEX FUNDS-Vanguard Total Stock Market Index Fund	1.67%	724,088	82.50M	Jun 29, 2026
AIM Counselor Series TRT -Invesco Discovery Fd.	1.23%	531,370	60.54M	Aug 30, 2026
VANGUARD INDEX FUNDS-Vanguard Small-Cap Index Fund	1.21%	522,864	59.58M	Jun 29, 2026
T. Rowe Price Health Sciences Fund, Inc.	0.87%	377,575	43.02M	Jun 29, 2026
BARON INVESTMENT Fd.S TRT -BARON DISCOVERY Fd.	0.66%	286,830	32.68M	Jun 29, 2026
Capitol Series Trust-FullerThaler Behavioral Small-Cap Growth Fund	0.64%	275,000	31.33M	Jun 29, 2026

BLLN insiders
Insider	Relation	Latest transaction	Date	Shares held
ATAY OGUZHAN PH.D.	Chief Executive Officer	Sale	Nov 1, 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