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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, Q1 2026

Institutional positions in Pacific Biosciences of California, Inc. as of Mar 31, 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
231
+21 vs. Q4 2025
Shares held
188.2M
+4.50M (+2.5%) vs. Q4 2025
Total value
$248.5M
−$93.1M (−27.2%) vs. Q4 2025
New holders
52
60 more added
Sold out
31
71 more reduced

6 institutions that held it in Q4 2025 haven't filed for Q1 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q4 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 holdersQ1 2026: 231 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 heldQ1 2026: $248.5M
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, Q1 2026

Shares, value and share of portfolio for each institution holding Pacific Biosciences of California, Inc.; share changes are against Q4 2025.

Institutions holding PACB in Q1 2026
InstitutionSharesValue% of portfolioChange in sharesAction
Voya Investment Management LLC50,142$66.2K0.00%−1,406−2.7%Reduced
Evolution Wealth Advisors, LLC50,000$66.0K0.01%00.0%Unchanged
Kestra Private Wealth Services, LLC49,600$65.5K0.00%−1,600−3.1%Reduced
Wealth Architects, LLC48,725$64.3K0.01%00.0%Unchanged
Steel Peak Wealth Management LLC47,872$63.2K0.00%−33,550−41.2%Reduced
Wealth Enhancement Advisory Services, LLC43,661$58.5K0.00%+24,324+125.8%Added
Captrust Financial Advisors44,320$58.5K0.00%+1,361+3.2%Added
Clear Harbor Asset Management, LLC44,130$58.3K0.00%−14,580−24.8%Reduced
Prudential Financial Inc43,487$57.4K0.00%+20,750+91.3%Added
Graham Capital Management, L.P.42,179$55.7K0.00%−146,306−77.6%Reduced
Advisor Group Holdings, Inc.40,291$53.2K0.00%+15,216+60.7%Added
Wealthfront Advisers LLC39,446$52.1K0.00%+1,405+3.7%Added
Scientech Research LLC38,450$50.8K0.04%−214,437−84.8%Reduced
FMR LLC36,983$48.8K0.00%+7,128+23.9%Added
Sanctuary Advisors, LLC36,826$48.6K0.00%+1,946+5.6%Added
DRW Securities, LLC35,565$46.9K0.00%+35,565New
Kestra Advisory Services, LLC34,798$45.9K0.00%−60−0.2%Reduced
IFP Advisors, Inc34,706$45.8K0.00%−18,081−34.3%Reduced
Mercer Global Advisors Inc34,673$45.8K0.00%+14,010+67.8%Added
Citigroup Inc33,099$43.7K0.00%+2,899+9.6%Added
SG Americas Securities, LLC32,061$42.0K0.00%−68,690−68.2%Reduced
Neuberger Berman Group LLC30,941$40.8K0.00%+9,506+44.3%Added
Victory Capital Management Inc30,843$40.7K0.00%−341−1.1%Reduced
Venture Visionary Partners LLC30,300$40.0K0.00%00.0%Unchanged
Axxcess Wealth Management, LLC28,603$37.8K0.00%00.0%Unchanged
Sandbox Financial Partners, LLC27,517$36.3K0.01%00.0%Unchanged
JustInvest LLC26,106$34.5K0.00%−7,774−22.9%Reduced
Great West Life Assurance Co25,662$34.0K0.00%+5,382+26.5%Added
Jump Financial, LLC25,492$33.6K0.00%−8,254−24.5%Reduced
Private Wealth Partners, LLC25,000$33.0K0.00%00.0%Unchanged
Xponance, Inc.24,777$32.7K0.00%+3,310+15.4%Added
Private Advisor Group, LLC24,737$32.7K0.00%+441+1.8%Added
Aquatic Capital Management LLC24,622$32.5K0.00%+24,622New
Legal & General Group Plc24,447$32.3K0.00%00.0%Unchanged
Cresset Asset Management, LLC23,508$31.0K0.00%+553+2.4%Added
Ameritas Investment Partners, Inc.22,894$30.2K0.00%−3,200−12.3%Reduced
Abel Hall, LLC22,699$30.0K0.01%+6,208+37.6%Added
American Century Companies Inc22,602$29.8K0.00%−71,461−76.0%Reduced
Bay Colony Advisory Group, Inc d/b/a Bay Colony Advisors22,000$29.0K0.00%00.0%Unchanged
Cerity Partners LLC21,421$28.3K0.00%+21,421New
SBI Securities Co., Ltd.20,984$27.7K0.00%+15,613+290.7%Added
SVB Capital Management, LLC20,586$27.2K1.31%00.0%Unchanged
Prime Capital Investment Advisors, LLC20,279$26.8K0.00%−1,694−7.7%Reduced
Interchange Capital Partners, LLC21,400$25.3K0.01%+4,587+27.3%Added
Krilogy Financial LLC15,344$25.0K0.00%+15,344New
Pallas Capital Advisors LLC18,811$24.8K0.00%+18,811New
Essential Partners LLC18,615$24.6K0.01%+18,615New
Insigneo Advisory Services, LLC18,595$24.5K0.00%+18,595New
Abacus Wealth Partners, LLC18,407$24.3K0.00%−95,482−83.8%Reduced
Royal Bank of Canada17,230$23.0K0.00%−7,661−30.8%Reduced
GTS Securities LLC17,133$22.6K0.00%+17,133New
Ballentine Partners, LLC16,663$22.0K0.00%−4,160−20.0%Reduced
CI Private Wealth, LLC16,858$21.3K0.00%+16,858New
Mirae Asset Global Investments Co., Ltd.15,752$20.8K0.00%+1,081+7.4%Added
Merit Financial Group, LLC15,567$20.5K0.00%+15,567New
Polymer Capital Management (US) LLC15,300$20.2K0.00%−22,258−59.3%Reduced
California State Teachers Retirement System14,943$19.7K0.00%−2,055−12.1%Reduced
Quantinno Capital Management LP14,655$19.3K0.00%+2,430+19.9%Added
CIBC Bancorp USA Inc.14,514$19.2K0.00%+14,514New
Hudson Bay Capital Management LP14,300$18.9K0.00%+14,300New
Brighton Jones LLC14,006$18.5K0.00%+14,006New
Chicago Partners Investment Group LLC10,447$17.9K0.00%+10,447New
Principal Financial Group Inc11,998$15.8K0.00%−117−1.0%Reduced
CIBC World Markets Inc.11,400$15.0K0.00%00.0%Unchanged
HighTower Advisors, LLC11,287$14.9K0.00%+1,184+11.7%Added
Axq Capital, LP10,974$14.5K0.00%+10,974New
Brevan Howard Capital Management LP10,806$14.3K0.00%+10,806New
Kingsview Wealth Management, LLC10,765$14.2K0.00%+331+3.2%Added
Horizon Kinetics Asset Management LLC10,551$13.9K0.00%−483−4.4%Reduced
DKM Wealth Management, Inc.10,000$13.2K0.01%00.0%Unchanged
FNY Investment Advisers, LLC10,000$13.0K0.01%00.0%Unchanged
Sterling Capital Management LLC9,203$12.1K0.00%−6,713−42.2%Reduced
Zurcher Kantonalbank (Zurich Cantonalbank)9,146$12.1K0.00%−4,436−32.7%Reduced
Allworth Financial LP7,928$10.5K0.00%+3,877+95.7%Added
Federation des caisses Desjardins du Quebec7,500$9.90K0.00%00.0%Unchanged
Signaturefd, LLC6,957$9.18K0.00%−510−6.8%Reduced
GF Fund Management Co. Ltd.6,705$8.85K0.00%+773+13.0%Added
Twin Lakes Capital Management, LLC5,669$7.48K0.00%−5,888−50.9%Reduced
Rockefeller Capital Management L.P.5,198$6.86K0.00%+3,952+317.2%Added
Nisa Investment Advisors, LLC3,642$4.81K0.00%00.0%Unchanged
Caitong International Asset Management Co., Ltd3,358$4.43K0.00%−7,013−67.6%Reduced
Parallel Advisors, LLC3,101$4.09K0.00%+101+3.4%Added
Hurley Capital, LLC2,976$3.93K0.00%00.0%Unchanged
GAMMA Investing LLC2,965$3.91K0.00%−8,568−74.3%Reduced
EverSource Wealth Advisors, LLC2,785$3.68K0.00%+2,785New
Bryn Mawr Trust Co2,500$3.30K0.00%00.0%Unchanged
Optiver Holding B.V.2,140$2.83K0.00%+2,140New
SRS Capital Advisors, Inc.2,133$2.82K0.00%+121+6.0%Added
Louisbourg Investments Inc.1,900$2.51K0.00%00.0%Unchanged
Fifth Third Bancorp1,827$2.41K0.00%+1,827New
Dynamic Wealth Strategies, LLC1,678$2.21K0.00%00.0%Unchanged
Farther Finance Advisors, LLC1,556$2.10K0.00%+1,047+205.7%Added
Keating Financial Advisory Services, Inc.1,500$1.98K0.00%00.0%Unchanged
Stone House Investment Management, LLC1,497$1.98K0.00%+1,497New
Gill Capital Partners, LLC977$1.29K0.00%+977New
Jones Financial Companies LLLP1,000$1.26K0.00%−1,666−62.5%Reduced
Caldwell Sutter Capital, Inc.950$1.25K0.00%00.0%Unchanged
UMA Financial Services, Inc.917$1.21K0.00%00.0%Unchanged
Rothschild Investment LLC819$1.08K0.00%+626+324.4%Added
Smithfield Trust Co774$1.00K0.00%00.0%Unchanged