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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.

13F holders, Q2 2025

Institutional positions in Pacific Biosciences of California, Inc. as of Jun 30, 2025. 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
207
−16 vs. Q1 2025
Shares held
198.5M
−26.7M (−11.9%) vs. Q1 2025
Total value
$245.8M
−$19.7M (−7.4%) vs. Q1 2025
New holders
30
53 more added
Sold out
46
72 more reduced

2 institutions that held it in Q1 2025 haven't filed for Q2 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q1 2025: new holders, sold out and not filed yet

Holders and value by quarter

Institutions reporting PACB 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 2025: 207 institutions
Q1 2021: 263 institutionsQ2 2021: 261 institutionsQ3 2021: 246 institutionsQ4 2021: 256 institutionsQ1 2022: 250 institutionsQ2 2022: 230 institutionsQ3 2022: 227 institutionsQ4 2022: 237 institutionsQ1 2023: 260 institutionsQ2 2023: 272 institutionsQ3 2023: 275 institutionsQ4 2023: 274 institutionsQ1 2024: 268 institutionsQ2 2024: 229 institutionsQ3 2024: 226 institutionsQ4 2024: 227 institutionsQ1 2025: 225 institutionsQ2 2025: 207 institutionsQ3 2025: 208 institutionsQ4 2025: 216 institutionsQ1 2026: 231 institutionsQ2 2026: 223 institutions
Value heldQ2 2025: $245.8M
Q1 2021: $5.47BQ2 2021: $6.04BQ3 2021: $4.83BQ4 2021: $4.20BQ1 2022: $2.03BQ2 2022: $1.03BQ3 2022: $1.23BQ4 2022: $1.84BQ1 2023: $2.93BQ2 2023: $3.37BQ3 2023: $2.20BQ4 2023: $2.76BQ1 2024: $1.01BQ2 2024: $331.9MQ3 2024: $394.3MQ4 2024: $475.1MQ1 2025: $265.6MQ2 2025: $245.8MQ3 2025: $237.8MQ4 2025: $373.5MQ1 2026: $248.5MQ2 2026: $320.8M
Institutions holding PACB and their total value by quarter
QuarterHoldersValue
Q2 2026223$320.8M
Q1 2026231$248.5M
Q4 2025216$373.5M
Q3 2025208$237.8M
Q2 2025207$245.8M
Q1 2025225$265.6M
Q4 2024227$475.1M
Q3 2024226$394.3M
Q2 2024229$331.9M
Q1 2024268$1.01B
Q4 2023274$2.76B
Q3 2023275$2.20B
Q2 2023272$3.37B
Q1 2023260$2.93B
Q4 2022237$1.84B
Q3 2022227$1.23B
Q2 2022230$1.03B
Q1 2022250$2.03B
Q4 2021256$4.20B
Q3 2021246$4.83B
Q2 2021261$6.04B
Q1 2021263$5.47B

Institutions, Q2 2025

Shares, value and share of portfolio for each institution holding Pacific Biosciences of California, Inc.; share changes are against Q1 2025.

Institutions holding PACB in Q2 2025
InstitutionSharesValue% of portfolioChange in sharesAction
ARK Investment Management LLCSuperinvestorARK Invest36,298,163$45.0M0.33%−180,278−0.5%Reduced
BlackRock, Inc.22,652,874$28.1M0.00%−802,378−3.4%Reduced
Softbank Group Corp20,451,570$25.4M0.10%00.0%Unchanged
Madrone Advisors, LLC16,762,216$20.8M2.89%−6,629,699−28.3%Reduced
Vanguard Group Inc16,017,175$19.9M0.00%−246,289−1.5%Reduced
Edmond de Rothschild Holding S.A.13,366,200$16.6M0.26%−8,488,980−38.8%Reduced
Sumitomo Mitsui Trust Holdings, Inc.9,218,455$11.4M0.01%−346,876−3.6%Reduced
Nikko Asset Management Americas, Inc.9,218,455$11.3M0.11%−346,876−3.6%Reduced
Geode Capital Management, LLC6,718,879$8.33M0.00%+401,637+6.4%Added
State Street Corp5,754,583$7.14M0.00%−625,009−9.8%Reduced
Koss-Olinger Consulting, LLC3,300,000$4.09M0.34%+300,000+10.0%Added
Amiral Gestion2,733,290$3.21M1.38%+2,733,290New
Point72 (DIFC) Ltd2,459,000$3.05M0.24%+2,459,000New
Charles Schwab Investment Management Inc2,289,929$2.84M0.00%+168,405+7.9%Added
Northern Trust Corp2,206,093$2.74M0.00%−228,596−9.4%Reduced
UBS Group AG1,993,158$2.47M0.00%−291,120−12.7%Reduced
Vestmark Advisory Solutions, Inc.1,294,186$1.60M0.02%+612,760+89.9%Added
Susquehanna International Group, LLP1,282,635$1.59M0.00%+934,622+268.6%Added
National Bank of Canada1,084,578$1.34M0.00%+712,978+191.9%Added
PEAK6 LLC1,000,000$1.24M0.04%+1,000,000New
Bourne Lent Asset Management Inc972,255$1.21M0.47%00.0%Unchanged
XTX Topco Ltd954,596$1.18M0.05%+466,359+95.5%Added
HHLR Advisors, Ltd.SuperinvestorHHLR Advisors (Hillhouse)918,892$1.14M0.04%00.0%Unchanged
Point72 Asset Management, L.P.914,190$1.13M0.00%+914,190New
Bank of New York Mellon Corp888,466$1.10M0.00%+24,827+2.9%Added
Millennium Management LLC868,240$1.08M0.00%−1,335,804−60.6%Reduced
Invesco Ltd.839,340$1.04M0.00%+314,697+60.0%Added
Morgan Stanley831,770$1.03M0.00%−2,539,962−75.3%Reduced
Davy Global Fund Management Ltd789,271$978.7K0.09%+471,101+148.1%Added
Casdin Capital, LLC723,767$897.5K0.08%00.0%Unchanged
Bank of America Corp702,703$871.4K0.00%−154,352−18.0%Reduced
Mirador Capital Partners LP563,670$699.0K0.11%+47,936+9.3%Added
Jackson Square Partners, LLC553,103$685.8K0.25%−2,767,258−83.3%Reduced
Barclays PLC490,092$607.7K0.00%+105,065+27.3%Added
Goldman Sachs Group Inc484,741$601.1K0.00%−1,379,742−74.0%Reduced
JPMorgan Chase & Co480,502$595.8K0.00%−40,832−7.8%Reduced
ArrowMark Colorado Holdings LLC468,382$580.8K0.01%00.0%Unchanged
Universal- Beteiligungs- und Servicegesellschaft mbH408,700$506.8K0.00%00.0%Unchanged
Rhumbline Advisers407,147$504.9K0.00%−31,628−7.2%Reduced
Birchview Capital, LP400,000$496.0K0.49%+400,000New
Dimensional Fund Advisors LP390,583$485.0K0.00%−56,405−12.6%Reduced
Alliancebernstein L.P.387,060$480.0K0.00%+159,400+70.0%Added
Mirae Asset Global ETFs Holdings Ltd.350,548$434.7K0.00%−338,978−49.2%Reduced
Carret Asset Management, LLC315,000$390.6K0.04%+315,000New
Squarepoint Ops LLC294,584$365.3K0.00%+215,006+270.2%Added
Price T Rowe Associates Inc279,237$347.0K0.00%+18,396+7.1%Added
Nuveen, LLC270,184$335.0K0.00%00.0%Unchanged
Green Alpha Advisors, LLC207,023$256.7K0.25%−9,771−4.5%Reduced
Virtu Financial LLC205,780$255.0K0.01%+205,780New
Wells Fargo & Company187,863$232.9K0.00%+16,875+9.9%Added
Deutsche Bank AG181,251$224.8K0.00%−72,896−28.7%Reduced
LPL Financial LLC176,542$218.9K0.00%−7,261−4.0%Reduced
Creative Planning175,690$217.9K0.00%+124,893+245.9%Added
MetLife Investment Management165,992$205.8K0.00%+22,561+15.7%Added
Benjamin Edwards Inc154,107$191.1K0.00%−5,695−3.6%Reduced
Raymond James Financial Inc151,969$188.4K0.00%+21,863+16.8%Added
Envestnet Asset Management Inc149,741$185.7K0.00%−13,741−8.4%Reduced
IFP Advisors, Inc148,330$183.9K0.01%−45,950−23.7%Reduced
Farallon Capital Management, L.L.C.135,000$167.4K0.00%00.0%Unchanged
Citigroup Inc128,918$159.9K0.00%−153,323−54.3%Reduced
Intech Investment Management LLC125,804$156.0K0.00%−61,382−32.8%Reduced
Clear Harbor Asset Management, LLC122,894$152.4K0.01%−290−0.2%Reduced
Koa Wealth Management, LLC120,000$148.8K0.12%00.0%Unchanged
Simplex Trading, LLC117,525$145.0K0.00%+116,763+15,323.2%Added
AdvisorNet Financial, Inc108,769$134.9K0.01%+32,105+41.9%Added
HRT Financial LP106,280$131.0K0.00%−37,563−26.1%Reduced
Cetera Investment Advisers104,725$129.9K0.00%+9,617+10.1%Added
Tower Research Capital LLC (TRC)103,954$128.9K0.00%+7,497+7.8%Added
Group One Trading, L.P.102,442$127.0K0.00%+102,442New
Manufacturers Life Insurance Company, The100,914$125.1K0.00%+2,798+2.9%Added
Bank of Montreal100,875$125.1K0.00%−4,690−4.4%Reduced
Gabelli Funds LLC100,000$124.0K0.00%00.0%Unchanged
NJ State Employees Deferred Compensation Plan100,000$124.0K0.01%00.0%Unchanged
Abacus Planning Group, Inc.100,000$124.0K0.02%00.0%Unchanged
Wealthfront Advisers LLC89,818$111.4K0.00%+242+0.3%Added
Engineers Gate Manager LP88,827$110.1K0.00%+88,827New
New York State Common Retirement Fund84,825$105.2K0.00%00.0%Unchanged
DekaBank Deutsche Girozentrale73,300$96.0K0.00%00.0%Unchanged
Voya Investment Management LLC77,398$96.0K0.00%+820+1.1%Added
Canada Pension Plan Investment Board73,300$90.9K0.00%+66,800+1,027.7%Added
State Board of Administration of Florida Retirement System71,941$89.2K0.00%00.0%Unchanged
ProShare Advisors LLC67,828$84.1K0.00%−3,744−5.2%Reduced
Wolverine Trading, LLC61,165$78.9K0.00%+25,493+71.5%Added
Commonwealth Equity Services, LLC63,227$78.0K0.00%−13,135−17.2%Reduced
China Universal Asset Management Co., Ltd.62,190$77.1K0.01%+5,339+9.4%Added
TCG Advisory Services, LLC61,900$76.8K0.00%+61,900New
Optiver Holding B.V.60,178$74.6K0.00%+10,840+22.0%Added
Police & Firemen's Retirement System of New Jersey57,886$71.8K0.00%00.0%Unchanged
Stifel Financial Corp57,112$70.8K0.00%−2,420−4.1%Reduced
Archford Capital Strategies, LLC52,694$65.3K0.01%00.0%Unchanged
Evolution Wealth Advisors, LLC50,000$62.0K0.01%00.0%Unchanged
Wealth Architects, LLC48,725$60.4K0.01%00.0%Unchanged
Royal Bank of Canada42,847$52.0K0.00%−4,078−8.7%Reduced
Financial Advocates Investment Management40,000$49.6K0.00%+40,000New
Wealth Enhancement Advisory Services, LLC30,113$48.2K0.00%+9,739+47.8%Added
Advisor Group Holdings, Inc.36,773$45.6K0.00%−664−1.8%Reduced
JustInvest LLC36,746$45.6K0.00%+6,321+20.8%Added
BNP Paribas Arbitrage, SA36,462$45.2K0.00%−7,359−16.8%Reduced
Prudential Financial Inc35,684$44.2K0.00%+15,062+73.0%Added
Gotham Asset Management, LLC35,671$44.2K0.00%+35,671New