BillionToOne Ownership | Who Owns BillionToOne?

BillionToOne Ownership Summary

BillionToOne is owned by 24.73% institutional investors, 46.83% insiders, and 28.44% retail investors. Adams street partners is the largest institutional shareholder, holding 3.74% of BLLN shares. Vanguard Total Stock Mkt Idx Inv is the top mutual fund, with 1.57% of its assets in BillionToOne shares.

BLLN Ownership Benchmark

Type	Name	% Inst	% Insiders	% Retail
Stock	BillionToOne	24.73%	46.83%	28.44%
Sector	Healthcare Stocks	50.50%	12.33%	37.17%
Industry	Diagnostics & Research Stocks	77.65%	9.11%	13.24%

Institutional Shareholders

Top Institutional Shareholders by Total Shares

Holder	Shares	% Holding	Value
Adams street partners	1.71M	3.74%	$135.10M
Baillie gifford	1.26M	2.75%	$99.46M
Bamco inc /ny/	741.49K	1.62%	$58.53M
Price t rowe associates inc /md/	737.52K	1.61%	$58.22M
Neuberger berman group	709.21K	1.55%	$37.81M
Invesco	406.51K	0.89%	$32.09M
Wasatch advisors lp	369.64K	0.81%	$29.18M
Vanguard group	352.37K	0.79%	$28.84M
Jpmorgan chase	283.14K	0.62%	$19.85M
Ubs asset management americas	240.59K	0.53%	$18.99M

Top Institutional Shareholders by % of Total Assets

Holder	Shares	% Assets	Value
Adams street partners	1.71M	51.90%	$135.10M
Napean trading & investment co (singapore) pte	233.33K	7.91%	$18.42M
Blue water life science advisors, lp	20.00K	1.27%	$1.58M
Penn capital management company	126.33K	0.77%	$9.99M
Emerald advisers	239.56K	0.60%	$18.91M
Next century growth investors	90.56K	0.52%	$7.15M
Emerald mutual fund advisers trust	132.21K	0.51%	$10.44M
Green alpha advisors	5.17K	0.40%	$407.96K
Brandywine managers	5.75K	0.27%	$453.90K
Wasatch advisors lp	369.64K	0.19%	$29.18M

Top Buyers

Holder	Shares	% Assets	Change
Bamco inc /ny/	741.49K	0.18%	571.49K
Wasatch advisors lp	369.64K	0.19%	369.64K
Vanguard group	352.37K	0.00%	352.37K
Price t rowe associates inc /md/	737.52K	0.01%	252.24K
Invesco	406.51K	0.00%	216.69K

Top Sellers

Holder	Shares	% Assets	Change
Nvp associates	-	-	-513.33K
Capital investors	-	-	-178.00K
Citadel advisors	-	-	-148.87K
Jpmorgan chase	283.14K	0.00%	-108.82K
T. rowe price investment management	-	-	-101.14K

New Positions

Holder	Shares	% Assets	Change	Value
Wasatch advisors lp	369.64K	0.19%	369.64K	$29.18M
Vanguard group	352.37K	0.00%	352.37K	$28.84M
Penn capital management company	126.33K	0.77%	126.33K	$9.99M
Two sigma investments, lp	82.78K	0.01%	82.78K	$6.53M
Ensign peak advisors	51.50K	0.01%	51.50K	$4.07M

Sold Out

Holder	Change
Dv trading	-1.00
Gamma investing	-3.00
Bell investment advisors	-29.00
Aster capital management (difc)	-36.00
Tower research capital llc (trc)	-71.00

Institutional Ownership Trends

Date	Holdings	Change %	Shares	Change %	Ownership	Change %	Increased Position	Change %	Decreased Position	Change %
Mar 31, 2026	92	3.37%	11,326,314	17.39%	24	5.31%	59	-33.71%	16	-
Dec 31, 2025	27	-	2,894,266	-	6	-	27	-	-	-

Top Mutual Funds Shareholders

Holder	Shares	% Holding	Change
Vanguard Total Stock Mkt Idx Inv	724.28K	1.57%	598.19K
Vanguard Morn Total Stk Mkt Idx Investor	724.28K	1.57%	598.19K
Vanguard Small Cap Index	523.19K	1.14%	431.43K
Invesco OFI Small Cap Growth	478.02K	1.04%	287.69K
Invesco Discovery A	478.02K	1.04%	287.69K
T. Rowe Price Health Sciences	377.57K	0.82%	377.57K
FullerThaler Beh Small-Cap Growth SMA	304.35K	0.66%	304.35K
FullerThaler Behavioral Small-Cap Growth	304.35K	0.65%	304.35K
Baron Discovery Institutional	286.83K	0.62%	-
Baron Discovery Strategy	286.83K	0.62%	-

BLLN Ownership FAQ

Who Owns BillionToOne?

BillionToOne shareholders are primarily institutional investors at 24.73%, followed by 46.83% insiders and 28.44% retail investors. The average institutional ownership in BillionToOne's industry, Diagnostics & Research Stocks, is 77.65%, which BillionToOne falls below.

Who owns the most shares of BillionToOne?

BillionToOne’s largest shareholders are Adams street partners (1.71M shares, 3.74%), Baillie gifford (1.26M shares, 2.75%), and Bamco inc /ny/ (741.48K shares, 1.62%). Together, they hold 8.11% of BillionToOne’s total shares outstanding.

Does Blackrock own BillionToOne?

BlackRock is not among the top 10 institutional shareholders of BillionToOne.

Who is BillionToOne’s biggest shareholder by percentage of total assets invested?

Adams street partners is BillionToOne’s biggest shareholder by percentage of total assets invested, with 51.90% of its assets in 1.71M BillionToOne shares, valued at 135.1M$.

Who is the top mutual fund holder of BillionToOne shares?

Vanguard Total Stock Mkt Idx Inv is the top mutual fund holder of BillionToOne shares, with 1.57% of its total shares outstanding invested in 724.28K BillionToOne shares.

Try Tickergate Pro Free

Customize Everything. 100% Flexibility. Fast and Easy to Use (No code or Excel Needed)

Customize your own personal stocks lists, views and charts
Choose from hundreds of fields, up to 15 years of history
Conduct deep comparison analysis

Discover trending investment themes
Find your next best investment
Research stocks using tools