BillionToOne, Inc.

BLLNNASDAQ

$99.94-9.12 (-8.36% today)

Legend

Insider buy

Insider sell

Congress buy

Congress sell

Hedge Funds
bought vs soldGreener markers show more buyers; redder markers show more sellers.

Company share activityNet buybacksNo changeNet dilution

Marker size reflects transaction size.

Insider buy
Insider sell
Congress buy
Congress sell
Hedge Funds bought vs sold

Share activityNet buybacksNo changeNet dilution

Marker size reflects transaction size. Greener fund markers mean more buyers.

Insider Buy
Insider Sell
Congress Buy
Congress Sell
Hedge funds bought vs sold
BuybackNo changeNet dilution

BillionToOne, Inc. price and activity chart data

Showing the 1Y range: Nov 6, 2025 to Oct 6, 2026. Price (-8.3%). 0 insider or congressional trades plotted in this window as 0 markers; nearby trades of the same kind are grouped.

Transactions plotted on the price chart
Date	Category	Person	Role	Action	Amount	Change in holding

Largest institutional holders

13F · Q2 2026

Fund	% of company held	Value	% of portfolio	Quarterly activity
Adams Street Partners LLC	15.31%	$205M	46.39%	Not reported
Baillie Gifford & Co	8.06%	$108M	0.10%	Reduce 28.46%
Vanguard Portfolio Management LLC	7.52%	$101M	0.00%	Not reported
Invesco Ltd.	7.48%	$100M	0.01%	Not reported
Vanguard Capital Management LLC	7.15%	$95.9M	0.00%	Not reported
Neuberger Berman Group LLC	6.84%	$91.7M	0.06%	Not reported
Bamco Inc	6.64%	$89M	0.13%	Add 0.08%
Wasatch Advisors LP	4.63%	$62.2M	0.41%	Add 40.16%
Millennium Management LLC	3.80%	$51M	0.02%	Not reported
Fuller & Thaler Asset Management, Inc.	3.74%	$50.2M	0.14%	Not reported
Emerald Advisers, LLC	3.36%	$45.1M	1.06%	Add 56.89%
Next Century Growth Investors LLC	3.26%	$43.7M	2.32%	Add 302.44%
UBS Group AG	3.08%	$41.3M	0.01%	Not reported
JPMorgan Chase & Co	3.04%	$41M	0.00%	Not reported
Ameriprise Financial Inc	2.87%	$38.5M	0.01%	Not reported
Oberweis Asset Management Inc/	2.68%	$35.9M	0.74%	New Not reported
Wells Fargo & Company	2.43%	$32.6M	0.01%	Not reported
Alliancebernstein L.P.	2.34%	$20.7M	0.01%	Not reported
Napean Trading & Investment Co (Singapore) PTE Ltd	2.09%	$28M	9.62%	Not reported
UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC	2.00%	$26.9M	0.00%	Not reported
Emerald Mutual Fund Advisers Trust	1.82%	$24.5M	0.86%	Add 54.30%
Penn Capital Management Company, LLC	1.16%	$15.5M	0.99%	Add 2.59%
BNP Paribas Financial Markets	1.10%	$14.7M	0.01%	Not reported
Goldman Sachs Group Inc	1.08%	$14.4M	0.00%	Not reported
New York State Common Retirement Fund	1.05%	$14.1M	0.02%	Not reported
Voloridge Investment Management, LLC	1.05%	$14M	0.06%	New Not reported
BlackRock, Inc.	1.02%	$13.7M	0.00%	Not reported
Fred Alger Management, LLC	1.02%	$13.7M	0.05%	New Not reported
Renaissance Technologies LLC	0.86%	$11.6M	0.02%	Not reported
T. Rowe Price Investment Management, Inc.	0.83%	$11.2M	0.01%	New Not reported
Geode Capital Management, LLC	0.79%	$10.6M	0.00%	Not reported
Perceptive Advisors LLC	0.78%	$10.4M	0.16%	Reduce 5.45%
Lord, Abbett & Co. LLC	0.77%	$10.4M	0.03%	Add 94.84%
Healthcare of Ontario Pension Plan Trust Fund	0.75%	$9.99M	0.01%	New Not reported
Massachusetts Financial Services Co	0.71%	$9.48M	0.00%	Reduce 50.51%
Greenwich Wealth Management LLC	0.64%	$8.59M	0.31%	New Not reported
Blue Water Life Science Advisors, LP	0.63%	$8.4M	5.29%	Add 250.00%
Bank of America Corp	0.53%	$7.08M	0.00%	Not reported
Verition Fund Management LLC	0.51%	$6.84M	0.03%	Not reported
Susquehanna International Group, LLP	0.49%	$6.55M	0.00%	Not reported
Ensign Peak Advisors, Inc	0.46%	$6.17M	0.01%	Reduce 0.14%
Jump Financial, LLC	0.41%	$5.56M	0.04%	Not reported
Marshall Wace, LLP	0.40%	$5.36M	0.00%	Not reported
Fox Hill Wealth Management	0.39%	$5.25M	2.10%	New Not reported
F/m Investments LLC	0.39%	$5.23M	0.27%	Add 157.87%
Weiss Asset Management LP	0.39%	$5.17M	0.05%	New Not reported
Vanguard Fiduciary Trust Co	0.38%	$5.14M	0.00%	Not reported
Manufacturers Life Insurance Company, the	0.37%	$5M	0.00%	Not reported
Regents of the University of California	0.37%	$4.9M	0.11%	New Not reported
State Street Corp	0.32%	$4.29M	0.00%	Not reported

50 of 149 holders

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