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.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 223 | $320.8M |
| Q1 2026 | 231 | $248.5M |
| Q4 2025 | 216 | $373.5M |
| Q3 2025 | 208 | $237.8M |
| Q2 2025 | 207 | $245.8M |
| Q1 2025 | 225 | $265.6M |
| Q4 2024 | 227 | $475.1M |
| Q3 2024 | 226 | $394.3M |
| Q2 2024 | 229 | $331.9M |
| Q1 2024 | 268 | $1.01B |
| Q4 2023 | 274 | $2.76B |
| Q3 2023 | 275 | $2.20B |
| Q2 2023 | 272 | $3.37B |
| Q1 2023 | 260 | $2.93B |
| Q4 2022 | 237 | $1.84B |
| Q3 2022 | 227 | $1.23B |
| Q2 2022 | 230 | $1.03B |
| Q1 2022 | 250 | $2.03B |
| Q4 2021 | 256 | $4.20B |
| Q3 2021 | 246 | $4.83B |
| Q2 2021 | 261 | $6.04B |
| Q1 2021 | 263 | $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.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| ARK Investment Management LLCSuperinvestorARK Invest | 36,273,288 | $47.9M | 0.37% | −990,940−2.7% | Reduced |
| BlackRock, Inc. | 25,267,429 | $33.4M | 0.00% | +1,922,459+8.2% | Added |
| Softbank Group Corp | 20,451,570 | $27.0M | 0.24% | 00.0% | Unchanged |
| Vanguard Capital Management LLC | 12,777,449 | $16.9M | 0.00% | +12,777,449 | New |
| Sumitomo Mitsui Trust Holdings, Inc. | 7,037,987 | $9.29M | 0.01% | −770,593−9.9% | Reduced |
| Nikko Asset Management Americas, Inc. | 7,037,987 | $9.22M | 0.13% | −770,593−9.9% | Reduced |
| Geode Capital Management, LLC | 6,975,266 | $9.21M | 0.00% | −103,478−1.5% | Reduced |
| State Street Corp | 6,121,716 | $8.08M | 0.00% | +209,493+3.5% | Added |
| Millennium Management LLC | 4,892,318 | $6.46M | 0.00% | +547,749+12.6% | Added |
| D. E. Shaw & Co., Inc. | 3,637,547 | $4.80M | 0.00% | −800,726−18.0% | Reduced |
| Two Sigma Investments, LP | 3,509,613 | $4.63M | 0.00% | +632,429+22.0% | Added |
| Nuveen, LLC | 2,950,929 | $3.90M | 0.00% | +2,102,710+247.9% | Added |
| Vanguard Portfolio Management LLC | 2,868,393 | $3.79M | 0.00% | +2,868,393 | New |
| Renaissance Technologies LLC | 2,489,100 | $3.29M | 0.01% | −1,361,500−35.4% | Reduced |
| Charles Schwab Investment Management Inc | 2,405,496 | $3.18M | 0.00% | −60,357−2.4% | Reduced |
| Northern Trust Corp | 2,130,788 | $2.81M | 0.00% | +83,949+4.1% | Added |
| Vanguard Fiduciary Trust Co | 1,986,483 | $2.62M | 0.00% | +1,986,483 | New |
| Morgan Stanley | 1,840,461 | $2.43M | 0.00% | −570,079−23.6% | Reduced |
| Davy Global Fund Management Ltd | 1,788,393 | $2.36M | 0.18% | −106,538−5.6% | Reduced |
| Susquehanna International Group, LLP | 1,719,165 | $2.27M | 0.00% | −892,378−34.2% | Reduced |
| Bank of America Corp | 1,666,706 | $2.20M | 0.00% | −188,108−10.1% | Reduced |
| UBS Group AG | 1,640,099 | $2.16M | 0.00% | −1,531,447−48.3% | Reduced |
| Citadel Advisors LLC | 1,576,051 | $2.08M | 0.00% | −1,590,190−50.2% | Reduced |
| Birchview Capital, LP | 1,500,000 | $1.98M | 1.13% | +1,000,000+200.0% | Added |
| Invesco Ltd. | 1,468,148 | $1.94M | 0.00% | +35,137+2.5% | Added |
| Jane Street Group, LLC | 1,390,070 | $1.83M | 0.00% | −110,448−7.4% | Reduced |
| HRT Financial LP | 1,265,535 | $1.67M | 0.00% | −98,042−7.2% | Reduced |
| Qube Research & Technologies Ltd | 1,184,975 | $1.56M | 0.00% | +1,184,975 | New |
| Goldman Sachs Group Inc | 988,467 | $1.30M | 0.00% | −390,405−28.3% | Reduced |
| Bourne Lent Asset Management Inc | 951,055 | $1.26M | 0.46% | −16,000−1.7% | Reduced |
| HHLR Advisors, Ltd.SuperinvestorHHLR Advisors (Hillhouse) | 918,892 | $1.21M | 0.07% | 00.0% | Unchanged |
| Dimensional Fund Advisors LP | 899,550 | $1.19M | 0.00% | +575,801+177.9% | Added |
| Bank of New York Mellon Corp | 813,406 | $1.07M | 0.00% | −21,167−2.5% | Reduced |
| Universal- Beteiligungs- und Servicegesellschaft mbH | 808,700 | $1.07M | 0.00% | 00.0% | Unchanged |
| AQR Capital Management LLC | 759,492 | $1.00M | 0.00% | +672,528+773.3% | Added |
| Casdin Capital, LLC | 723,767 | $955.4K | 0.07% | −3,500,000−82.9% | Reduced |
| Tudor Investment Corp Et Al | 684,707 | $903.8K | 0.00% | +684,707 | New |
| Mirador Capital Partners LP | 604,884 | $798.4K | 0.11% | +13,879+2.3% | Added |
| PEAK6 LLC | 599,022 | $790.7K | 0.02% | +599,022 | New |
| Carret Asset Management, LLC | 559,140 | $738.1K | 0.07% | +89,140+19.0% | Added |
| Vestmark Advisory Solutions, Inc. | 550,089 | $726.1K | 0.01% | −2550.0% | Reduced |
| Alliancebernstein L.P. | 387,060 | $723.8K | 0.00% | 00.0% | Unchanged |
| Panagora Asset Management Inc | 502,663 | $663.5K | 0.00% | +502,663 | New |
| Russell Investments Group, Ltd. | 469,875 | $620.2K | 0.00% | +445,975+1,866.0% | Added |
| ArrowMark Colorado Holdings LLC | 468,382 | $618.3K | 0.02% | 00.0% | Unchanged |
| Acadian Asset Management LLC | 418,791 | $549.0K | 0.00% | −22,459−5.1% | Reduced |
| Group One Trading, L.P. | 365,021 | $481.8K | 0.02% | −95,229−20.7% | Reduced |
| Caxton Associates LLP | 353,130 | $466.1K | 0.01% | −288,594−45.0% | Reduced |
| Rhumbline Advisers | 348,942 | $460.6K | 0.00% | −12,021−3.3% | Reduced |
| Mirae Asset Global ETFs Holdings Ltd. | 336,257 | $443.9K | 0.00% | +11,118+3.4% | Added |
| Creative Planning | 327,360 | $432.1K | 0.00% | −192,366−37.0% | Reduced |
| LPL Financial LLC | 299,597 | $395.5K | 0.00% | +25,350+9.2% | Added |
| Point72 Asset Management, L.P. | 285,700 | $377.1K | 0.00% | −2,671,700−90.3% | Reduced |
| Himension Fund | 276,532 | $365.0K | 0.03% | +276,532 | New |
| Water Island Capital LLC | 272,040 | $359.1K | 0.05% | +272,040 | New |
| Balyasny Asset Management LLC | 260,538 | $343.9K | 0.00% | +260,538 | New |
| HSBC Holdings PLC | 248,477 | $326.8K | 0.00% | +195,769+371.4% | Added |
| Deutsche Bank AG | 244,769 | $323.1K | 0.00% | +25,788+11.8% | Added |
| XTX Topco Ltd | 244,764 | $323.1K | 0.01% | −383,458−61.0% | Reduced |
| Jennison Associates LLC | 229,794 | $303.3K | 0.00% | +229,794 | New |
| Barclays PLC | 222,347 | $293.5K | 0.00% | −249,761−52.9% | Reduced |
| Price T Rowe Associates Inc | 188,043 | $249.0K | 0.00% | +24,516+15.0% | Added |
| Green Alpha Advisors, LLC | 182,618 | $241.1K | 0.24% | −848−0.5% | Reduced |
| SEI Investments Co | 166,823 | $220.2K | 0.00% | +166,823 | New |
| Raymond James Financial Inc | 164,558 | $217.2K | 0.00% | −18,720−10.2% | Reduced |
| Main Street Research LLC | 152,100 | $200.8K | 0.01% | +152,100 | New |
| Envestnet Asset Management Inc | 148,961 | $196.6K | 0.00% | +44,340+42.4% | Added |
| AdvisorNet Financial, Inc | 142,057 | $187.5K | 0.01% | +8,290+6.2% | Added |
| Gsa Capital Partners LLP | 137,332 | $181.0K | 0.01% | −167,845−55.0% | Reduced |
| Farallon Capital Management, L.L.C. | 135,000 | $178.2K | 0.00% | 00.0% | Unchanged |
| JPMorgan Chase & Co | 138,504 | $174.5K | 0.00% | −318,404−69.7% | Reduced |
| Wells Fargo & Company | 131,214 | $173.2K | 0.00% | −182,800−58.2% | Reduced |
| MetLife Investment Management | 127,090 | $167.8K | 0.00% | +10,902+9.4% | Added |
| Vanguard Global Advisers, LLC | 121,781 | $160.8K | 0.00% | +121,781 | New |
| Koa Wealth Management, LLC | 120,000 | $158.4K | 0.11% | 00.0% | Unchanged |
| Benjamin Edwards Inc | 115,549 | $152.4K | 0.00% | −6,377−5.2% | Reduced |
| Ieq Capital, LLC | 112,698 | $148.8K | 0.00% | +112,698 | New |
| Quadrature Capital Ltd | 112,503 | $148.5K | 0.00% | −93,907−45.5% | Reduced |
| Simplex Trading, LLC | 109,016 | $143.9K | 0.00% | +109,016 | New |
| Canada Pension Plan Investment Board | 107,800 | $142.3K | 0.00% | +107,800 | New |
| Intech Investment Management LLC | 101,371 | $133.8K | 0.00% | −22,565−18.2% | Reduced |
| Gabelli Funds LLC | 100,000 | $132.0K | 0.00% | 00.0% | Unchanged |
| Kavar Capital Partners Group, LLC | 93,319 | $123.2K | 0.02% | +93,319 | New |
| New York State Common Retirement Fund | 84,825 | $112.0K | 0.00% | 00.0% | Unchanged |
| Marshall Wace, LLP | 81,300 | $107.3K | 0.00% | +81,300 | New |
| Police & Firemen's Retirement System of New Jersey | 79,955 | $105.5K | 0.00% | 00.0% | Unchanged |
| Manufacturers Life Insurance Company, The | 74,844 | $98.8K | 0.00% | −7,683−9.3% | Reduced |
| State Board of Administration of Florida Retirement System | 71,941 | $95.0K | 0.00% | 00.0% | Unchanged |
| Stifel Financial Corp | 70,026 | $92.4K | 0.00% | −834−1.2% | Reduced |
| Hartline Investment Corp | 69,000 | $91.1K | 0.01% | +38,000+122.6% | Added |
| TCG Advisory Services, LLC | 67,000 | $88.4K | 0.00% | +5,100+8.2% | Added |
| BNP Paribas Arbitrage, SA | 65,398 | $86.3K | 0.00% | −657−1.0% | Reduced |
| State of Wyoming | 55,529 | $73.3K | 0.01% | +48,255+663.4% | Added |
| CWM, LLC | 53,794 | $71.0K | 0.00% | +47,591+767.2% | Added |
| China Universal Asset Management Co., Ltd. | 53,592 | $70.7K | 0.01% | +4,396+8.9% | Added |
| ProShare Advisors LLC | 53,535 | $70.7K | 0.00% | −10,264−16.1% | Reduced |
| Engineers Gate Manager LP | 52,289 | $69.0K | 0.00% | +30,818+143.5% | Added |
| Cetera Investment Advisers | 51,359 | $67.8K | 0.00% | +2,416+4.9% | Added |
| Abacus Planning Group, Inc. | 51,238 | $67.6K | 0.01% | −48,762−48.8% | Reduced |
| Tower Research Capital LLC (TRC) | 50,517 | $66.7K | 0.00% | +42,585+536.9% | Added |