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.
Superinvestors holding PACB, Q2 2026
2 superinvestors report holding Pacific Biosciences of California, Inc. on Form 13F, worth $51.6M in total. Weight is Pacific Biosciences of California, Inc.'s share of each 13F portfolio; actions compare shares with Q1 2026.
| Superinvestor | % of portfolio | Shares | Value | vs. previous quarter |
|---|---|---|---|---|
| ARK InvestCathie Wood | 0.3% | 29,781,416 | $50.0M | Reduced−17.9% |
| HHLR Advisors (Hillhouse)Zhang Lei | 0.2% | 918,892 | $1.54M | Unchanged |
Moves by quarter
Superinvestors that opened, added to, trimmed or sold out of PACB each quarter, comparing shares with the quarter before. A superinvestor that didn't file for a quarter isn't listed, and isn't counted as selling.
Q2 2026
2 superinvestors holding at quarter end
- Reduced
- ARK Invest (−17.9%)
Q1 2026
2 superinvestors holding at quarter end
- Reduced
- ARK Invest (−2.7%)
Q4 2025
2 superinvestors holding at quarter end
- Added
- ARK Invest (+20.5%)
Q3 2025
2 superinvestors holding at quarter end
- Reduced
- ARK Invest (−14.8%)
Q2 2025
2 superinvestors holding at quarter end
- Reduced
- ARK Invest (−0.5%)
- Sold out
- Soros Fund Management
Q1 2025
3 superinvestors holding at quarter end
- Added
- ARK Invest (+1.2%)
- Reduced
- Soros Fund Management (−57.8%)
Q4 2024
3 superinvestors holding at quarter end
- Added
- ARK Invest (+7.9%), Soros Fund Management (+13.1%)
Q3 2024
3 superinvestors holding at quarter end
- Added
- ARK Invest (+0.6%), Soros Fund Management (+23.6%)
Q2 2024
3 superinvestors holding at quarter end
- Added
- Soros Fund Management (+4.0%)
- Reduced
- ARK Invest (−0.2%)
Q1 2024
3 superinvestors holding at quarter end
- New
- Soros Fund Management
- Reduced
- ARK Invest (−3.5%)
Q4 2023
2 superinvestors holding at quarter end
- Added
- ARK Invest (+15.7%)
Q3 2023
2 superinvestors holding at quarter end
- New
- HHLR Advisors (Hillhouse)
- Added
- ARK Invest (+12.0%)
Q2 2023
1 superinvestor holding at quarter end
- Reduced
- ARK Invest (−4.0%)
Q1 2023
1 superinvestor holding at quarter end
- Added
- ARK Invest (+8.0%)
Q4 2022
1 superinvestor holding at quarter end
- Reduced
- ARK Invest (−10.5%)
Q3 2022
1 superinvestor holding at quarter end
- Added
- ARK Invest (+2.3%)
Q2 2022
1 superinvestor holding at quarter end
- Added
- ARK Invest (+2.9%)
Q1 2022
1 superinvestor holding at quarter end
- Added
- ARK Invest (+3.3%)
Q4 2021
1 superinvestor holding at quarter end
- Added
- ARK Invest (+16.1%)
- Sold out
- HHLR Advisors (Hillhouse)
Q3 2021
2 superinvestors holding at quarter end
- New
- HHLR Advisors (Hillhouse)
- Added
- ARK Invest (+10.9%)
- Sold out
- Viking Global Investors
Q2 2021
2 superinvestors holding at quarter end
- Added
- Viking Global Investors (+334.2%)
- Reduced
- ARK Invest (−3.8%)