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BillionToOne, Inc.

BLLN
Exchange
Nasdaq
Industry
Services-Medical Laboratories
SEC CIK
0002070849

In the last 90 days, BillionToOne, Inc. insiders filed 0 open-market purchases and 21 sales; 155 institutions reported holding it in 13F filings for Q2 2026, worth $1.82B in total; no superinvestor holds it.

13F holders, Q2 2026

Institutional positions in BillionToOne, Inc. as of Jun 30, 2026. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works

Institutional holders
155
+65 vs. Q1 2026
Shares held
15.3M
+3.94M (+34.7%) vs. Q1 2026
Total value
$1.82B
+$947.5M (+108.3%) vs. Q1 2026
New holders
76
50 more added
Sold out
11
13 more reduced

Compare with Q1 2026: new holders, sold out and not filed yet

Holders and value by quarter

Institutions reporting BLLN on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.

Institutional holdersQ2 2026: 155 institutions
Q1 2021: 0 institutionsQ2 2021: 0 institutionsQ3 2021: 0 institutionsQ4 2021: 0 institutionsQ1 2022: 0 institutionsQ2 2022: 0 institutionsQ3 2022: 0 institutionsQ4 2022: 0 institutionsQ1 2023: 0 institutionsQ2 2023: 0 institutionsQ3 2023: 0 institutionsQ4 2023: 0 institutionsQ1 2024: 0 institutionsQ2 2024: 0 institutionsQ3 2024: 0 institutionsQ4 2024: 0 institutionsQ1 2025: 0 institutionsQ2 2025: 0 institutionsQ3 2025: 0 institutionsQ4 2025: 90 institutionsQ1 2026: 90 institutionsQ2 2026: 155 institutions
Value heldQ2 2026: $1.82B
Q1 2021: $0Q2 2021: $0Q3 2021: $0Q4 2021: $0Q1 2022: $0Q2 2022: $0Q3 2022: $0Q4 2022: $0Q1 2023: $0Q2 2023: $0Q3 2023: $0Q4 2023: $0Q1 2024: $0Q2 2024: $0Q3 2024: $0Q4 2024: $0Q1 2025: $0Q2 2025: $0Q3 2025: $0Q4 2025: $789.7MQ1 2026: $875.1MQ2 2026: $1.82B
Institutions holding BLLN and their total value by quarter
QuarterHoldersValue
Q2 2026155$1.82B
Q1 202690$875.1M
Q4 202590$789.7M
Q3 20250$0
Q2 20250$0
Q1 20250$0
Q4 20240$0
Q3 20240$0
Q2 20240$0
Q1 20240$0
Q4 20230$0
Q3 20230$0
Q2 20230$0
Q1 20230$0
Q4 20220$0
Q3 20220$0
Q2 20220$0
Q1 20220$0
Q4 20210$0
Q3 20210$0
Q2 20210$0
Q1 20210$0

Institutions, Q2 2026

Shares, value and share of portfolio for each institution holding BillionToOne, Inc.; share changes are against Q1 2026.

Institutions holding BLLN in Q2 2026
InstitutionSharesValue% of portfolioChange in sharesAction
Yorktown Management & Research Co Inc3,450$413.9K0.25%+3,450New
Greenup Street Wealth Management LLC3,391$406.9K0.05%+3,391New
First Manhattan Co3,362$403.4K0.00%+3,362New
Canada Pension Plan Investment Board3,300$395.9K0.00%+3,300New
Envestnet Asset Management Inc3,252$390.2K0.00%+3,252New
Cornerstone Investment Partners, LLC3,248$389.7K0.01%−154−4.5%Reduced
Harbour Capital Advisors, LLC2,850$361.3K0.07%+2,850New
Cerity Partners LLC3,000$359.9K0.00%+3,000New
Vident Advisory, LLC2,980$357.5K0.00%+2,980New
Virtu Financial LLC2,833$340.0K0.01%+2,833New
The PNC Financial Services Group, Inc.2,554$306.4K0.00%+2,554New
Moneta Group Investment Advisors LLC2,446$293.5K0.00%+2,446New
Raymond James Financial Inc2,434$292.0K0.00%+2,434New
RiverPark Advisors, LLC2,415$289.8K0.13%+1,788+285.2%Added
Edmond de Rothschild Holding S.A.2,405$288.6K0.00%+2,405New
Renaissance Capital LLC2,373$284.7K0.16%+446+23.1%Added
DSM Capital Partners LLC2,229$267.4K0.00%+2,229New
Thrive Wealth Management, LLC2,000$240.0K0.03%+2,000New
Genesis Financial Group, LLC2,000$240.0K0.16%+2,000New
Occudo Quantitative Strategies LP1,980$237.6K0.01%+1,980New
Bank of New York Mellon Corp1,932$231.8K0.00%+1,932New
Caitong International Asset Management Co., Ltd1,910$229.2K0.03%+1,910New
Victory Capital Management Inc1,907$228.8K0.00%+1,907New
ExodusPoint Capital Management, LP1,838$220.5K0.00%+1,838New
Gotham Asset Management, LLC1,782$213.8K0.00%+1,782New
Vanguard Global Advisers, LLC1,755$210.6K0.00%00.0%Unchanged
Freestone Grove Partners LP1,533$183.9K0.00%+1,533New
US Bancorp1,349$161.9K0.00%+1,285+2,007.8%Added
Smartleaf Asset Management LLC1,297$156.2K0.01%00.0%Unchanged
Citigroup Inc886$106.3K0.00%+885+88,500.0%Added
Jones Financial Companies LLLP816$96.4K0.00%+804+6,700.0%Added
NBC Securities, Inc.563$67.5K0.00%+563New
Toth Financial Advisory Corp500$60.0K0.01%+500New
MCF Advisors LLC448$53.8K0.00%+344+330.8%Added
Rockefeller Capital Management L.P.282$33.8K0.00%+282New
Los Angeles Capital Management LLC259$31.1K0.00%+259New
Forum Finance Group S.A.300$29.0K0.01%+300New
Tower Research Capital LLC (TRC)221$26.5K0.00%+221New
Harbour Investments, Inc.186$22.3K0.00%+6+3.3%Added
Parallel Advisors, LLC150$18.0K0.00%+150New
Rossby Financial, LCC100$12.0K0.00%00.0%Unchanged
Civilization Ventures Management, LLC88$8.68K100.00%−1,099,343−100.0%Reduced
Colonial Trust Advisors50$6.00K0.00%00.0%Unchanged
Essential Investment Partners LLC50$6.00K0.00%00.0%Unchanged
Peterson Wealth Management47$5.64K0.00%+47New
Wolff Wiese Magana LLC40$4.80K0.00%+40New
SBI Securities Co., Ltd.35$4.20K0.00%−645−94.9%Reduced
UMA Financial Services, Inc.17$2.04K0.00%00.0%Unchanged
Huntington National Bank15$1.80K0.00%00.0%Unchanged
Frazier Financial Advisors, LLC14$1.68K0.00%00.0%Unchanged
Bare Financial Services, Inc12$1.44K0.00%+12New
Fortitude Family Office, LLC9$1.08K0.00%+9New
Marquette Asset Management, LLC7$8400.00%00.0%Unchanged
FMR LLC7$8400.00%+7New
Quarry LP1$1200.00%+1New
NVP Associates, LLC0$00.00%−513,330−100.0%Sold out
Capital International Investors0$00.00%−178,000−100.0%Sold out
PFM Health Sciences, LP0$00.00%−88,069−100.0%Sold out
Deep Track Capital, LP0$00.00%−50,000−100.0%Sold out
Public Employees Retirement System of Ohio0$00.00%−19,499−100.0%Sold out
Soros Fund Management LLCSuperinvestorSoros Fund Management0$00.00%−14,500−100.0%Sold out
Nomura Holdings Inc0$00.00%−8,600−100.0%Sold out
Brevan Howard Capital Management LP0$00.00%−7,716−100.0%Sold out
Alyeska Investment Group, L.P.0$00.00%−7,000−100.0%Sold out
Walleye Capital LLC0$00.00%−5,956−100.0%Sold out
MYDA Advisors LLC0$00.00%−4,000−100.0%Sold out