Who Owns BillionToOne, Inc. (BLLN)?Hedge Fund & Institutional Holders

$70.58+1.48 (+2.13%)HealthcareNASDAQ

Institutional Holders

50

as of Q4 2025

Total Institutional Value

$InfinityT

% of Float Held

3.149410706765737e+249%

QoQ Change in Holders

+15 / -0

Price History

$64.03$80.57$97.11$113.64$130.18Nov 25Jan 26Mar 26

BLLN — Biggest New Institutional Buyers This Quarter

FundActionShares AddedValue Added
ADAMS STREET PARTNERS LLCNew Position+1.7M+$140.1B
BAILLIE GIFFORD & CONew Position+1.3M+$103.8B
Neuberger Berman Group LLCNew Position+701K+$56.0B
NVP Associates, LLCNew Position+513K+$42.0B
JPMORGAN CHASE & CONew Position+392K+$31.0B
Napean Trading & Investment Co (Singapore) PTE LtdNew Position+233K+$19.1B
ALLIANCEBERNSTEIN L.P.New Position+209K+$17.0B
Invesco Ltd.New Position+190K+$15.5B
EMERALD ADVISERS, LLCNew Position+189K+$15.5B
BAMCO INC /NY/New Position+170K+$13.9B
MASSACHUSETTS FINANCIAL SERVICES CO /MA/New Position+163K+$13.4B
CITADEL ADVISORS LLCNew Position+149K+$12.0B
EMERALD MUTUAL FUND ADVISERS TRUSTNew Position+118K+$9.7B
AMERIPRISE FINANCIAL INCNew Position+122K+$9.0B
PFM Health Sciences, LPNew Position+88K+$7.2B

Top Institutional Holders(Q4 2025)

#FundSharesValue% of PortfolioType
1ADAMS STREET PARTNERS LLC1,711,430$140.1B53.07%Share
2BAILLIE GIFFORD & CO720,395$59.0B48.99%Share
3Neuberger Berman Group LLC689,261$56.0B41.69%Share
4NVP Associates, LLC513,330$42.0B16.46%Share
5BAILLIE GIFFORD & CO375,742$30.8B25.55%Share
6JPMORGAN CHASE & CO337,048$27.0B1.70%Share
7Napean Trading & Investment Co (Singapore) PTE Ltd233,333$19.1B3.71%Share
8ALLIANCEBERNSTEIN L.P.208,594$17.0B5.37%Share
9Invesco Ltd.189,819$15.5B2.38%Share
10EMERALD ADVISERS, LLC188,949$15.5B0.48%Share
11BAMCO INC /NY/170,000$13.9B37.69%Share
12MASSACHUSETTS FINANCIAL SERVICES CO /MA/162,404$13.3B4.29%Share
13CITADEL ADVISORS LLC148,768$12.0B1.80%Share
14EMERALD MUTUAL FUND ADVISERS TRUST118,134$9.7B0.47%Share
15AMERIPRISE FINANCIAL INC122,145$9.0B2.03%Share
16PFM Health Sciences, LP87,547$7.2B0.71%Share
17Siren, L.L.C.83,833$6.9B0.20%Share
18BAILLIE GIFFORD & CO73,751$6.0B5.01%Share
19PERCEPTIVE ADVISORS LLC72,812$6.0B106.20%Share
20BAILLIE GIFFORD & CO64,886$5.3B4.41%Share
21JPMORGAN CHASE & CO41,333$3.0B0.19%Share
22NEXT CENTURY GROWTH INVESTORS LLC36,659$3.0B0.21%Share
23BAILLIE GIFFORD & CO33,389$2.7B2.27%Share
24UBS Group AG31,598$2.6B0.42%Share
25Catalio Capital Management, LP25,505$2.1B0.37%Share
26TD ASSET MANAGEMENT INC26,730$2.0B1.61%Share
27CHARLES SCHWAB INVESTMENT MANAGEMENT INC26,604$2.0B0.31%Share
28SUMMIT PARTNERS PUBLIC ASSET MANAGEMENT, LLC19,783$1.6B0.03%Share
29Universal- Beteiligungs- und Servicegesellschaft mbH16,473$1.3B2.19%Share
30SOROS FUND MANAGEMENT LLC14,500$1.2B13.74%Share
31XTX Topco Ltd20,678$1.0B0.03%Share
32Woodline Partners LP17,000$1.0B3.87%Share
33JPMORGAN CHASE & CO13,577$1.0B0.06%Share
34MANUFACTURERS LIFE INSURANCE COMPANY, THE12,117$1.0B0.82%Share
35GOLDMAN SACHS GROUP INC20,715$1.0B0.12%Share
36Bellevue Group AG10,589$866.0M16.41%Share
37Ghisallo Capital Management LLC7,000$572.0M0.03%Share
38Sigma Planning Corp5,000$409.0M0.01%Share
39Renaissance Capital LLC2,454$200.0M0.14%Share
40MASSACHUSETTS FINANCIAL SERVICES CO /MA/996$81.0M0.03%Share
41PRICE T ROWE ASSOCIATES INC /MD/482,142$39.0M0.00%Share
42RiverPark Advisors, LLC463$37.0M0.01%Share
43VANGUARD GROUP INC324,574$26.0M0.38%Share
44Rossby Financial, LCC300$24.0M0.01%Share
45Capital International Investors178,000$14.0M0.00%Share
46UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC125,605$10.0M0.00%Share
47UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC75,244$6.0M0.00%Share
48Quarry LP83$6.0M0.00%Share
49SBI Securities Co., Ltd.71$5.0M0.00%Share
50BlackRock, Inc.69,878$5.0M0.08%Share

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As of Q4 2025, 50 institutional investors hold BLLN (BillionToOne, Inc.). The largest holder is ADAMS STREET PARTNERS LLC with $140.1B in shares. This quarter, 15 institutions opened new positions and 0 closed their positions.

Frequently Asked Questions

How many hedge funds own BLLN?

As of Q4 2025, 50 institutional investors report holding BLLN (BillionToOne, Inc.) in their 13F filings.

Who is the largest institutional holder of BLLN?

The largest institutional holder of BLLN is ADAMS STREET PARTNERS LLC with $140.1B in shares.

Is institutional ownership of BLLN increasing or decreasing?

This quarter, 15 institutions opened new positions in BLLN and 0 closed their positions.