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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
Quarry LP1$1200.00%+1New
Marquette Asset Management, LLC7$8400.00%00.0%Unchanged
FMR LLC7$8400.00%+7New
Fortitude Family Office, LLC9$1.08K0.00%+9New
Bare Financial Services, Inc12$1.44K0.00%+12New
Frazier Financial Advisors, LLC14$1.68K0.00%00.0%Unchanged
Huntington National Bank15$1.80K0.00%00.0%Unchanged
UMA Financial Services, Inc.17$2.04K0.00%00.0%Unchanged
SBI Securities Co., Ltd.35$4.20K0.00%−645−94.9%Reduced
Wolff Wiese Magana LLC40$4.80K0.00%+40New
Peterson Wealth Management47$5.64K0.00%+47New
Colonial Trust Advisors50$6.00K0.00%00.0%Unchanged
Essential Investment Partners LLC50$6.00K0.00%00.0%Unchanged
Civilization Ventures Management, LLC88$8.68K100.00%−1,099,343−100.0%Reduced
Rossby Financial, LCC100$12.0K0.00%00.0%Unchanged
Parallel Advisors, LLC150$18.0K0.00%+150New
Harbour Investments, Inc.186$22.3K0.00%+6+3.3%Added
Tower Research Capital LLC (TRC)221$26.5K0.00%+221New
Forum Finance Group S.A.300$29.0K0.01%+300New
Los Angeles Capital Management LLC259$31.1K0.00%+259New
Rockefeller Capital Management L.P.282$33.8K0.00%+282New
MCF Advisors LLC448$53.8K0.00%+344+330.8%Added
Toth Financial Advisory Corp500$60.0K0.01%+500New
NBC Securities, Inc.563$67.5K0.00%+563New
Jones Financial Companies LLLP816$96.4K0.00%+804+6,700.0%Added
Citigroup Inc886$106.3K0.00%+885+88,500.0%Added
Smartleaf Asset Management LLC1,297$156.2K0.01%00.0%Unchanged
US Bancorp1,349$161.9K0.00%+1,285+2,007.8%Added
Freestone Grove Partners LP1,533$183.9K0.00%+1,533New
Vanguard Global Advisers, LLC1,755$210.6K0.00%00.0%Unchanged
Gotham Asset Management, LLC1,782$213.8K0.00%+1,782New
ExodusPoint Capital Management, LP1,838$220.5K0.00%+1,838New
Victory Capital Management Inc1,907$228.8K0.00%+1,907New
Caitong International Asset Management Co., Ltd1,910$229.2K0.03%+1,910New
Bank of New York Mellon Corp1,932$231.8K0.00%+1,932New
Occudo Quantitative Strategies LP1,980$237.6K0.01%+1,980New
Thrive Wealth Management, LLC2,000$240.0K0.03%+2,000New
Genesis Financial Group, LLC2,000$240.0K0.16%+2,000New
DSM Capital Partners LLC2,229$267.4K0.00%+2,229New
Renaissance Capital LLC2,373$284.7K0.16%+446+23.1%Added
Edmond de Rothschild Holding S.A.2,405$288.6K0.00%+2,405New
RiverPark Advisors, LLC2,415$289.8K0.13%+1,788+285.2%Added
Raymond James Financial Inc2,434$292.0K0.00%+2,434New
Moneta Group Investment Advisors LLC2,446$293.5K0.00%+2,446New
The PNC Financial Services Group, Inc.2,554$306.4K0.00%+2,554New
Virtu Financial LLC2,833$340.0K0.01%+2,833New
Vident Advisory, LLC2,980$357.5K0.00%+2,980New
Cerity Partners LLC3,000$359.9K0.00%+3,000New
Harbour Capital Advisors, LLC2,850$361.3K0.07%+2,850New
Cornerstone Investment Partners, LLC3,248$389.7K0.01%−154−4.5%Reduced
Envestnet Asset Management Inc3,252$390.2K0.00%+3,252New
Canada Pension Plan Investment Board3,300$395.9K0.00%+3,300New
First Manhattan Co3,362$403.4K0.00%+3,362New
Greenup Street Wealth Management LLC3,391$406.9K0.05%+3,391New
Yorktown Management & Research Co Inc3,450$413.9K0.25%+3,450New
Connable Office Inc3,850$461.9K0.04%00.0%Unchanged
Quadrature Capital Ltd3,973$476.7K0.00%+3,973New
Lavelle Capital LP4,086$490.2K0.25%+4,086New
Pathstone Holdings, LLC4,346$518.6K0.00%+66+1.5%Added
SummitTX Capital, L.P.4,415$529.7K0.01%+4,415New
MIC Capital Management UK LLP4,892$586.9K0.15%+4,892New
Jasper Ridge Partners, L.P.5,127$615.1K0.01%+5,127New
Green Alpha Advisors, LLC5,197$623.5K0.42%+29+0.6%Added
Camden Capital, LLC5,342$641.0K0.03%+5,342New
Brandywine Managers, LLC5,750$689.9K0.34%00.0%Unchanged
Two Sigma Securities, LLC5,992$718.9K0.06%+5,992New
Gsa Capital Partners LLP6,203$744.0K0.05%+6,203New
Steward Partners Investment Advisory, LLC6,480$777.5K0.00%+6,180+2,060.0%Added
Entropy Technologies, LP6,700$803.9K0.03%+6,700New
LPL Financial LLC6,795$815.3K0.00%+6,795New
Blair William & Co6,978$837.2K0.00%+6,978New
Fifth Third Bancorp7,510$901.1K0.00%+7,376+5,504.5%Added
Change Path, LLC7,974$956.7K0.02%+7,974New
Squarepoint Ops LLC8,773$1.05M0.00%−14,173−61.8%Reduced
Cresset Asset Management, LLC9,129$1.10M0.00%+9,129New
SEI Investments Co9,589$1.15M0.00%−3,810−28.4%Reduced
Bellevue Group AG10,554$1.27M0.03%00.0%Unchanged
Caerus Investment Advisors, LLC11,453$1.37M0.46%+11,453New
Sierra Summit Advisors LLC11,911$1.43M0.16%+11,911New
Advisor Group Holdings, Inc.13,536$1.62M0.00%+13,116+3,122.9%Added
Deutsche Bank AG13,640$1.64M0.00%00.0%Unchanged
Scientech Research LLC14,490$1.74M1.41%+14,490New
Vontobel Holding Ltd.15,123$1.81M0.01%+15,123New
Citadel Advisors LLC15,155$1.82M0.00%+15,155New
Polen Capital Management LLC16,975$2.04M0.02%+16,975New
Barclays PLC17,446$2.09M0.00%+14,688+532.6%Added
First Trust Advisors LP17,498$2.10M0.00%+17,498New
XTX Topco Ltd18,152$2.18M0.03%+4,973+37.7%Added
Morgan Stanley18,421$2.21M0.00%+5,835+46.4%Added
One Wealth Advisors, LLC19,942$2.39M0.26%+19,942New
Mirae Asset Global ETFs Holdings Ltd.21,391$2.57M0.00%+21,391New
Tudor Investment Corp Et Al21,517$2.58M0.01%+21,517New
OpenArc Corporate Advisory, LLC24,482$2.94M0.03%+24,482New
Quantbot Technologies LP24,651$2.96M0.12%+24,611+61,527.5%Added
Royal Bank of Canada24,962$3.00M0.00%+20,192+423.3%Added
Seven Grand Managers, LLC25,000$3.00M0.12%00.0%Unchanged
D. E. Shaw & Co., Inc.25,981$3.12M0.00%+22,119+572.7%Added
Charles Schwab Investment Management Inc26,612$3.19M0.00%−1,442−5.1%Reduced
Trexquant Investment LP28,105$3.37M0.02%+28,105New
Russell Investments Group, Ltd.29,074$3.49M0.00%+10,415+55.8%Added