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Pacific Biosciences of California, Inc.

PACB
Exchange
Nasdaq
Industry
Laboratory Analytical Instruments
SEC CIK
0001299130

In the last 90 days, Pacific Biosciences of California, Inc. insiders filed 0 open-market purchases and 1 sale; 223 institutions reported holding it in 13F filings for Q2 2026, worth $320.8M in total; superinvestors ARK Invest and HHLR Advisors (Hillhouse) hold it.

Q3 2025 vs. Q2 2025

How the institutions holding Pacific Biosciences of California, Inc. changed between Q2 2025 and Q3 2025.

All holders in Q3 2025All holders in Q2 2025

13F holders of PACB: Q2 2025 compared with Q3 2025
MeasureQ2 2025Of which not filed for Q3 2025Q3 2025Change
Holders2072208+3
Shares198.5M36.9K186.2M−12.2M (−6.1%)
Value$245.8M$45.7K$237.8M−$7.96M (−3.2%)

2 institutions that held it in Q2 2025 haven't filed for Q3 2025 yet. Not filing isn't selling, so the changes leave them out.

New holders (28)

Institutions that held Pacific Biosciences of California, Inc. at the end of Q3 2025 but not at the end of Q2 2025.

Institutions new to PACB in Q3 2025
InstitutionSharesValue% of portfolio
Citadel Advisors LLC2,498,354$3.20M0.00%
Gsa Capital Partners LLP409,370$524.0K0.04%
Two Sigma Investments, LP401,766$514.3K0.00%
Quadrature Capital Ltd352,355$449.3K0.01%
Man Group plc250,276$320.4K0.00%
Jane Street Group, LLC237,023$303.4K0.00%
Main Street Research LLC142,100$181.9K0.01%
Marex Group plc118,200$151.4K0.00%
Brevan Howard Capital Management LP101,957$130.5K0.00%
SG Americas Securities, LLC70,673$90.0K0.00%
GTS Securities LLC45,306$58.0K0.00%
Western Wealth Management, LLC40,345$51.6K0.00%
Water Island Capital LLC35,754$45.8K0.01%
Kestra Advisory Services, LLC34,206$43.8K0.00%
CIBC Bancorp USA Inc.29,435$37.7K0.00%
Tang Capital Management LLC25,000$32.0K0.00%
Russell Investments Group, Ltd.22,871$29.3K0.00%
Acadian Asset Management LLC23,116$29.0K0.00%
Zacks Investment Management19,170$24.5K0.00%
Beta Wealth Group, Inc.19,000$24.3K0.01%
Atom Investors LP17,161$22.0K0.00%
Moloney Securities Asset Management, LLC14,000$17.9K0.00%
Alpine Global Management, LLC13,848$17.7K0.00%
Cambridge Investment Research Advisors, Inc.11,854$15.0K0.00%
Baader Bank INC12,081$9.56K0.00%
Fortitude Family Office, LLC793$1.01K0.00%
Rockefeller Capital Management L.P.257$3290.00%
JPL Wealth Management, LLC40$520.00%

Sold out (25)

Institutions that held Pacific Biosciences of California, Inc. at the end of Q2 2025 and filed for Q3 2025 without it.

Not filed for Q3 2025 yet (2)

Institutions that held Pacific Biosciences of California, Inc. at the end of Q2 2025 and haven't filed a 13F for Q3 2025. Not filing isn't selling, so they aren't counted as sold out.

Institutions holding PACB in Q2 2025 that haven't filed for Q3 2025
InstitutionShares, Q2 2025Value, Q2 2025
CIBC World Markets Corp34,023$42.2K
First Horizon Advisors, Inc.2,850$3.53K