BillionToOne Inc

BLLN

Market cap $5.97B

91 hedge funds and large institutions have $875M invested in BillionToOne Inc in 2026 Q1 according to their latest regulatory filings, with 29 funds opening new positions, 32 increasing their positions, 15 reducing their positions, and 28 closing their positions.

New

Increased

Maintained

Reduced

Closed

113% more repeat investments, than reductions

Existing positions increased: 32 | Existing positions reduced: 15

25% more funds holding in top 10

Funds holding in top 10: 4 → 5 (+1)

11% more capital invested

Capital invested by funds: $790M → $875M (+$85.4M)

3.97% more ownership

Funds ownership: 23.46% → 27.43% (+4%)

4% more first-time investments, than exits

New positions opened: 29 | Existing positions closed: 28

0% more funds holding

Funds holding: 91 → 91 (0)

56% less call options, than puts

Call options by funds: $1.66M | Put options by funds: $3.77M

Holders

Holders Change

–

Holders Change %

% of All Funds

1.12%

Holding in Top 10

Holding in Top 10 Change

Holding in Top 10 Change %

+25%

% of All Funds

0.06%

New

Increased

Reduced

Closed

Calls

$1.66M

Puts

$3.77M

Net Calls

-$2.11M

Net Calls Change

-$2.11M

Top Buyers

1	BAMCO Inc New York	+$46.8M
2	WA Wasatch Advisors Salt Lake City, Utah	+$30.3M
3	T. Rowe Price Associates Baltimore, Maryland	+$20.6M
4	Invesco Atlanta, Georgia	+$17.7M
5	PCM Penn Capital Management Philadelphia, Pennsylvania	+$10.3M

Top Sellers

1	Citadel Advisors Miami, Florida	-$12.2M
2	JP Morgan Chase New York	-$8.91M
3	T. Rowe Price Investment Management Baltimore, Maryland	-$8.28M
4	SL Siren LLC Greenwich, Connecticut	-$6.86M
5	B Braidwell Stamford, Connecticut	-$4.09M

#	Name	Holding	Trade Value	Shares Change	Change in Stake
26	26 Geode Capital Management Boston, Massachusetts	$7.04M	+$579K	+7,080	+9%
27	27 New York State Common Retirement Fund Albany, New York	$7M	+$6.84M	+83,565	+1,633%
28	PHS 28 PFM Health Sciences San Francisco, California	$6.95M	+$42.7K	+522	+0.6%
29	29 Two Sigma Investments New York	$6.53M	+$6.78M	+82,776	New
30	30 Ensign Peak Advisors Salt Lake City, Utah	$4.07M	+$4.22M	+51,501	New
31	31 Renaissance Technologies New York	$4.05M	+$4.2M	+51,254	New
32	DTC 32 Deep Track Capital Greenwich, Connecticut	$3.95M	–	–	–
33	33 Lord, Abbett & Co Jersey City, New Jersey	$3.5M	-$165K	-2,019	-4%
34	34 TD Asset Management Toronto, Ontario, Canada	$3.4M	+$1.34M	+16,378	+61%
35	35 Manulife (Manufacturers Life Insurance) Canada, Ontario, Canada	$2.41M	+$1.51M	+18,389	+152%
36	36 Charles Schwab San Francisco, California	$2.21M	+$119K	+1,450	+5%
37	VFT 37 Vanguard Fiduciary Trust Malvern, Pennsylvania	$2.19M	+$2.27M	+27,791	New
38	SGM 38 Seven Grand Managers Bronxville, New York	$1.97M	–	–	–
39	39 Squarepoint New York	$1.81M	+$1.23M	+15,055	+191%
40	40 Universal-Beteiligungs- und Servicegesellschaft Frankfurt Am Main, Germany	$1.63M	+$337K	+4,122	+25%
41	BWLSA 41 Blue Water Life Science Advisors Larkspur, California	$1.58M	+$1.64M	+20,000	New
42	42 State Street Boston, Massachusetts	$1.56M	-$156K	-1,900	-9%
43	43 Ohio Public Employees Retirement System (OPERS) Columbus, Ohio	$1.54M	+$1.6M	+19,499	New
44	44 Russell Investments Group London, United Kingdom	$1.47M	+$1.53M	+18,659	New
45	FMI 45 F/M Investments Washington, District of Columbia	$1.33M	+$1.38M	+16,908	New
46	SFM 46 Soros Fund Management New York	$1.14M	–	–	–
47	47 Deutsche Bank Frankfurt Am Main Ge, Germany	$1.08M	+$1.12M	+13,640	New
48	48 SEI Investments Oaks, Pennsylvania	$1.06M	+$1.1M	+13,399	New
49	XT 49 XTX Topco George Town, Cayman Islands	$1.04M	-$614K	-7,499	-36%
50	50 Bank of America Charlotte, North Carolina	$1M	+$1.03M	+12,561	+8,603%