Pacific Biosciences of CalifPACB
13F holders, Q1 2026 (March 31)231holders +15
46new positions
30sold out
8famous investors
$1.32avg. 13F price*
At the end of Q1 2026, 231 institutions reported holding Pacific Biosciences of Calif (PACB) in their 13F filings, up 15 from Q4 2025. 46 opened new positions and 30 sold out. The largest holders were ARK Investment Management ($47.9M), BlackRock, Inc. ($33.4M) and Softbank Group Corp. ($27.0M). 8 famous investors held it, including Cathie Wood (0.4% of ARK Investment Management's portfolio), Israel Englander (0.0% of Millennium Management's portfolio) and Jim Simons / Peter Brown (0.0% of Renaissance Technologies's portfolio).
- Company
- Pacific Biosciences of Calif
- CUSIP
- 69404D108
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q4 2025 → Q1 2026
| Institutions | Total Value | |
|---|---|---|
| New Positions | 46 | $6.7M |
| Exits | 30 | $11.7M |
All 13F filers, Q4 2025 → Q1 2026: 14,153,959 shares bought and 26,593,821 shares sold, net −12,439,862 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 231 holders
| ARK Investment Management | 0.37% | Reduce -2.7% | 36,273,288 | $47.9M |
| BlackRock, Inc. | 0.00% | Add +8.2% | 25,267,429 | $33.4M |
| Softbank Group Corp. | 0.24% | No change | 20,451,570 | $27.0M |
| Vanguard Capital Management LLC | 0.00% | — | 12,777,449 | $16.9M |
| Sumitomo Mitsui Trust Group, Inc. | 0.01% | Reduce -9.9% | 7,037,987 | $9.3M |
| Amova Asset Management Americas, Inc. | 0.13% | Reduce -9.9% | 7,037,987 | $9.2M |
| Geode Capital Management, LLC | 0.00% | Reduce -1.5% | 6,975,266 | $9.2M |
| State Street Corp. | 0.00% | Add +3.5% | 6,121,716 | $8.1M |
| Millennium Management | 0.01% | Add +12.6% | 4,892,318 | $6.5M |
| D. E. Shaw & Co. | 0.00% | Reduce -18.0% | 3,637,547 | $4.8M |
| Two Sigma Investments, LP | 0.00% | Add +22.0% | 3,509,613 | $4.6M |
| Nuveen, LLC | 0.00% | Add +247.9% | 2,950,929 | $3.9M |
| Vanguard Portfolio Management LLC | 0.00% | — | 2,868,393 | $3.8M |
| Renaissance Technologies | 0.01% | Reduce -35.4% | 2,489,100 | $3.3M |
| Charles Schwab Investment Management Inc. | 0.00% | Reduce -2.5% | 2,405,496 | $3.2M |
| Northern Trust Corp. | 0.00% | Add +4.1% | 2,130,788 | $2.8M |
| Vanguard Fiduciary Trust Co. | 0.00% | — | 1,986,483 | $2.6M |
| Morgan Stanley | 0.00% | Reduce -23.6% | 1,840,461 | $2.4M |
| IQ EQ FUND MANAGEMENT (IRELAND) Ltd | 0.18% | Reduce -5.6% | 1,788,393 | $2.4M |
| Susquehanna International Group, LLP | 0.00% | Reduce -34.2% | 1,719,165 | $2.3M |
| Bank of America Corp. | 0.00% | Reduce -10.1% | 1,666,706 | $2.2M |
| UBS Group AG | 0.00% | Reduce -48.3% | 1,640,099 | $2.2M |
| Citadel Advisors | 0.00% | Reduce -50.2% | 1,576,051 | $2.1M |
| Birchview Capital, LP | 1.13% | Add +200.0% | 1,500,000 | $2.0M |
| Invesco Ltd. | 0.00% | Add +2.5% | 1,468,148 | $1.9M |
| Jane Street Group, LLC | 0.00% | Reduce -7.4% | 1,390,070 | $1.8M |
| HRT Financial LP | 0.00% | Reduce -7.2% | 1,265,535 | $1.7M |
| Qube Research & Technologies Ltd | 0.00% | New | 1,184,975 | $1.6M |
| Goldman Sachs Group Inc. | 0.00% | Reduce -28.3% | 988,467 | $1.3M |
| Bourne Lent Asset Management Inc. | 0.46% | Reduce -1.6% | 951,055 | $1.3M |
| HHLR Advisors, LTD. | 0.07% | No change | 918,892 | $1.2M |
| Dimensional Fund Advisors LP | 0.00% | Add +177.8% | 899,550 | $1.2M |
| Bank of New York Mellon Corp | 0.00% | Reduce -2.5% | 813,406 | $1.1M |
| Universal- Beteiligungs- und Servicegesellschaft mbH | 0.00% | No change | 808,700 | $1.1M |
| AQR Capital Management | 0.00% | Add +773.3% | 759,492 | $1.0M |
| Casdin Capital, LLC | 0.07% | Reduce -82.9% | 723,767 | $955K |
| Tudor Investment Corporation | 0.00% | New | 684,707 | $904K |
| Mirador Capital Partners LP | 0.11% | Add +2.4% | 604,884 | $798K |
| PEAK6 LLC | 0.02% | New | 599,022 | $791K |
| Carret Asset Management, LLC | 0.07% | Add +19.0% | 559,140 | $738K |
| Vestmark Advisory Solutions, Inc. | 0.01% | Reduce -0.1% | 550,089 | $726K |
| Alliancebernstein L.P. | 0.00% | No change | 387,060 | $724K |
| Panagora Asset Management Inc. | 0.00% | New | 502,663 | $664K |
| Russell Investments Group, Ltd. | 0.00% | Add +1866.0% | 469,875 | $620K |
| ArrowMark Colorado Holdings LLC | 0.02% | No change | 468,382 | $618K |
| Acadian Asset Management LLC | 0.00% | Reduce -5.1% | 418,791 | $549K |
| Group One Trading LLC | 0.02% | Reduce -20.7% | 365,021 | $482K |
| Caxton Associates LLP | 0.01% | Reduce -45.0% | 353,130 | $466K |
| Rhumbline Advisers | 0.00% | Reduce -3.3% | 348,942 | $461K |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | 0.00% | Add +3.4% | 336,257 | $444K |
| Creative Planning | 0.00% | Reduce -37.0% | 327,360 | $432K |
| LPL Financial LLC | 0.00% | Add +9.2% | 299,597 | $395K |
| Point72 Asset Management | 0.00% | Reduce -90.3% | 285,700 | $377K |
| Himension Capital (singapore) Pte. LTD. | 0.03% | New | 276,532 | $365K |
| Water Island Capital LLC | 0.05% | New | 272,040 | $359K |
| Balyasny Asset Management L.P. | 0.00% | New | 260,538 | $344K |
| HSBC Holdings PLC | 0.00% | Add +371.4% | 248,477 | $327K |
| Deutsche Bank AG | 0.00% | Add +11.8% | 244,769 | $323K |
| XTX Topco Ltd | 0.01% | Reduce -61.0% | 244,764 | $323K |
| Jennison Associates LLC | 0.00% | New | 229,794 | $303K |
| Barclays PLC | 0.00% | Reduce -52.9% | 222,347 | $293K |
| T. Rowe Price Associates Inc. | 0.00% | Add +15.0% | 188,043 | $249K |
| Green Alpha Advisors, LLC | 0.24% | Reduce -0.5% | 182,618 | $241K |
| Sei Investments Co. | 0.00% | New | 166,823 | $220K |
| Raymond James Financial Inc. | 0.00% | Reduce -10.2% | 164,558 | $217K |
| Main Street Research LLC | 0.01% | New | 152,100 | $201K |
| Envestnet Asset Management Inc. | 0.00% | Add +42.4% | 148,961 | $197K |
| AdvisorNet Financial, Inc | 0.01% | Add +6.2% | 142,057 | $188K |
| Gsa Capital Partners LLP | 0.01% | Reduce -55.0% | 137,332 | $181K |
| Farallon Capital Management, L.L.C. | 0.00% | No change | 135,000 | $178K |
| JPMorgan Chase & Co. | 0.00% | Reduce -69.7% | 138,504 | $175K |
| Wells Fargo & Company | 0.00% | Reduce -58.2% | 131,214 | $173K |
| MetLife Investment Management, LLC | 0.00% | Add +9.4% | 127,090 | $168K |
| Vanguard Global Advisers, LLC | 0.00% | — | 121,781 | $161K |
| Koa Wealth Management, LLC | 0.11% | No change | 120,000 | $158K |
| Benjamin Edwards Inc. | 0.00% | Reduce -5.2% | 115,549 | $152K |
| Ieq Capital, LLC | 0.00% | New | 112,698 | $149K |
| Quadrature Capital Ltd | 0.00% | Reduce -45.5% | 112,503 | $149K |
| Simplex Trading, LLC | 0.00% | New | 109,016 | $144K |
| Canada Pension Plan Investment Board | 0.00% | New | 107,800 | $142K |
| Intech Investment Management LLC | 0.00% | Reduce -18.2% | 101,371 | $134K |
| Gabelli Funds LLC | 0.00% | No change | 100,000 | $132K |
| Kavar Capital Partners Group, LLC | 0.02% | New | 93,319 | $123K |
| New York State Common Retirement Fund | 0.00% | No change | 84,825 | $112K |
| Marshall Wace, LLP | 0.00% | New | 81,300 | $107K |
| Police & Firemen's Retirement System of New Jersey | 0.00% | No change | 79,955 | $106K |
| Manufacturers Life Insurance Company, The | 0.00% | Reduce -9.3% | 74,844 | $99K |
| State Board of Administration of Florida Retirement System | 0.00% | No change | 71,941 | $95K |
| Stifel Financial Corp. | 0.00% | Reduce -1.2% | 70,026 | $92K |
| Hartline Investment Corp./ | 0.01% | Add +122.6% | 69,000 | $91K |
| HUB Investment Partners, LLC | 0.00% | Add +8.2% | 67,000 | $88K |
| BNP Paribas Financial Markets | 0.00% | Reduce -1.0% | 65,398 | $86K |
| State of Wyoming | 0.01% | Add +663.4% | 55,529 | $73K |
| Cwm, LLC | 0.00% | Add +767.2% | 53,794 | $71K |
| China Universal Asset Management Co., Ltd. | 0.01% | Add +8.9% | 53,592 | $71K |
| ProShare Advisors LLC | 0.00% | Reduce -16.1% | 53,535 | $71K |
| Engineers Gate Manager LP | 0.00% | Add +143.5% | 52,289 | $69K |
| Cetera Investment Advisers | 0.00% | Add +4.9% | 51,359 | $68K |
| Abacus Planning Group, Inc. | 0.01% | Reduce -48.8% | 51,238 | $68K |
| Tower Research Capital LLC (TRC) | 0.00% | Add +536.9% | 50,517 | $67K |
"% of holder's portfolio" is PACB's weight in each manager's 13F, not the share of Pacific Biosciences of Calif the manager owns.