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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
Adams Street Partners LLC1,711,430$205.3M46.39%00.0%Unchanged
Price T Rowe Associates Inc1,010,322$121.2M0.01%+272,804+37.0%Added
Baillie Gifford & Co901,420$108.2M0.10%−358,573−28.5%Reduced
Vanguard Portfolio Management LLC840,970$100.9M0.00%+689,757+456.1%Added
Invesco Ltd.835,614$100.3M0.01%+429,102+105.6%Added
Vanguard Capital Management LLC799,468$95.9M0.00%+617,005+338.2%Added
Neuberger Berman Group LLC764,215$91.7M0.06%+55,001+7.8%Added
Bamco Inc742,093$89.0M0.13%+608+0.1%Added
Wasatch Advisors Inc518,084$62.2M0.41%+148,446+40.2%Added
Millennium Management LLC425,032$51.0M0.03%+425,032New
Fuller & Thaler Asset Management, Inc.418,565$50.2M0.14%+418,565New
Emerald Advisers, LLC375,858$45.1M1.06%+136,296+56.9%Added
Next Century Growth Investors LLC364,467$43.7M2.32%+273,903+302.4%Added
UBS Group AG344,287$41.3M0.01%+222,683+183.1%Added
JPMorgan Chase & Co340,371$41.0M0.00%+57,231+20.2%Added
Ameriprise Financial Inc320,612$38.5M0.01%+100,577+45.7%Added
Oberweis Asset Management Inc299,030$35.9M0.74%+299,030New
Wells Fargo & Company271,554$32.6M0.01%+270,446+24,408.5%Added
Napean Trading & Investment Co (Singapore) PTE Ltd233,333$28.0M9.62%00.0%Unchanged
UBS Asset Management Americas Inc223,933$26.9M0.00%−16,654−6.9%Reduced
Emerald Mutual Fund Advisers Trust203,990$24.5M0.86%+71,784+54.3%Added
Alliancebernstein L.P.262,103$20.7M0.01%+38,852+17.4%Added
Penn Capital Management Co Inc129,602$15.5M0.99%+3,267+2.6%Added
BNP Paribas Arbitrage, SA122,527$14.7M0.01%+122,519+1,531,487.5%Added
Goldman Sachs Group Inc120,325$14.4M0.00%+116,167+2,793.8%Added
New York State Common Retirement Fund117,771$14.1M0.02%+29,089+32.8%Added
Voloridge Investment Management, LLC117,063$14.0M0.06%+117,063New
BlackRock, Inc.114,281$13.7M0.00%+19,121+20.1%Added
Fred Alger Management, LLC114,123$13.7M0.05%+114,123New
Renaissance Technologies LLC96,600$11.6M0.02%+45,346+88.5%Added
T. Rowe Price Investment Management, Inc.92,957$11.2M0.01%+92,957New
Geode Capital Management, LLC87,934$10.6M0.00%−1,180−1.3%Reduced
Perceptive Advisors LLC86,812$10.4M0.16%−5,000−5.4%Reduced
Lord, Abbett & Co. LLC86,293$10.4M0.03%+42,004+94.8%Added
Healthcare of Ontario Pension Plan Trust Fund83,300$9.99M0.01%+83,300New
HRT Financial LP80,709$9.68M0.02%+80,709New
Massachusetts Financial Services Co78,977$9.48M0.00%−80,596−50.5%Reduced
Greenwich Wealth Management LLC71,625$8.59M0.31%+71,625New
Blue Water Life Science Advisors, LLC70,000$8.40M5.29%+50,000+250.0%Added
TD Asset Management Inc63,482$7.62M0.01%+20,374+47.3%Added
Bank of America Corp59,040$7.08M0.00%+46,333+364.6%Added
Verition Fund Management LLC57,000$6.84M0.05%+57,000New
Susquehanna International Group, LLP54,598$6.55M0.01%+42,112+337.3%Added
Ensign Peak Advisors, Inc51,427$6.17M0.01%−74−0.1%Reduced
Jump Financial, LLC46,300$5.56M0.05%+46,300New
Marshall Wace, LLP44,662$5.36M0.00%+44,662New
Fox Hill Wealth Management43,724$5.25M2.10%+43,724New
F/M Investments LLC43,600$5.23M0.27%+26,692+157.9%Added
Weiss Asset Management LP43,057$5.17M0.06%+43,057New
Vanguard Fiduciary Trust Co42,874$5.14M0.00%+15,083+54.3%Added
Manufacturers Life Insurance Company, The41,697$5.00M0.00%+11,191+36.7%Added
Regents of the University of California40,863$4.90M0.11%+40,863New
State Street Corp35,718$4.29M0.00%+16,018+81.3%Added
Universal- Beteiligungs- und Servicegesellschaft mbH32,532$3.90M0.01%+11,937+58.0%Added
Two Sigma Investments, LP30,176$3.62M0.00%−52,600−63.5%Reduced
Russell Investments Group, Ltd.29,074$3.49M0.00%+10,415+55.8%Added
Trexquant Investment LP28,105$3.37M0.02%+28,105New
Charles Schwab Investment Management Inc26,612$3.19M0.00%−1,442−5.1%Reduced
D. E. Shaw & Co., Inc.25,981$3.12M0.00%+22,119+572.7%Added
Seven Grand Managers, LLC25,000$3.00M0.12%00.0%Unchanged
Royal Bank of Canada24,962$3.00M0.00%+20,192+423.3%Added
Quantbot Technologies LP24,651$2.96M0.12%+24,611+61,527.5%Added
OpenArc Corporate Advisory, LLC24,482$2.94M0.03%+24,482New
Tudor Investment Corp Et Al21,517$2.58M0.01%+21,517New
Mirae Asset Global ETFs Holdings Ltd.21,391$2.57M0.00%+21,391New
One Wealth Advisors, LLC19,942$2.39M0.26%+19,942New
Morgan Stanley18,421$2.21M0.00%+5,835+46.4%Added
XTX Topco Ltd18,152$2.18M0.03%+4,973+37.7%Added
First Trust Advisors LP17,498$2.10M0.00%+17,498New
Barclays PLC17,446$2.09M0.00%+14,688+532.6%Added
Polen Capital Management LLC16,975$2.04M0.02%+16,975New
Citadel Advisors LLC15,155$1.82M0.00%+15,155New
Vontobel Holding Ltd.15,123$1.81M0.01%+15,123New
Scientech Research LLC14,490$1.74M1.41%+14,490New
Deutsche Bank AG13,640$1.64M0.00%00.0%Unchanged
Advisor Group Holdings, Inc.13,536$1.62M0.00%+13,116+3,122.9%Added
Sierra Summit Advisors LLC11,911$1.43M0.16%+11,911New
Caerus Investment Advisors, LLC11,453$1.37M0.46%+11,453New
Bellevue Group AG10,554$1.27M0.03%00.0%Unchanged
SEI Investments Co9,589$1.15M0.00%−3,810−28.4%Reduced
Cresset Asset Management, LLC9,129$1.10M0.00%+9,129New
Squarepoint Ops LLC8,773$1.05M0.00%−14,173−61.8%Reduced
Change Path, LLC7,974$956.7K0.02%+7,974New
Fifth Third Bancorp7,510$901.1K0.00%+7,376+5,504.5%Added
Blair William & Co6,978$837.2K0.00%+6,978New
LPL Financial LLC6,795$815.3K0.00%+6,795New
Entropy Technologies, LP6,700$803.9K0.03%+6,700New
Steward Partners Investment Advisory, LLC6,480$777.5K0.00%+6,180+2,060.0%Added
Gsa Capital Partners LLP6,203$744.0K0.05%+6,203New
Two Sigma Securities, LLC5,992$718.9K0.06%+5,992New
Brandywine Managers, LLC5,750$689.9K0.34%00.0%Unchanged
Camden Capital, LLC5,342$641.0K0.03%+5,342New
Green Alpha Advisors, LLC5,197$623.5K0.42%+29+0.6%Added
Jasper Ridge Partners, L.P.5,127$615.1K0.01%+5,127New
MIC Capital Management UK LLP4,892$586.9K0.15%+4,892New
SummitTX Capital, L.P.4,415$529.7K0.01%+4,415New
Pathstone Holdings, LLC4,346$518.6K0.00%+66+1.5%Added
Lavelle Capital LP4,086$490.2K0.25%+4,086New
Quadrature Capital Ltd3,973$476.7K0.00%+3,973New
Connable Office Inc3,850$461.9K0.04%00.0%Unchanged