Pacific Biosciences of California, Inc.
US ˙ NasdaqGS ˙ US69404D1081

SecurityPACB / Pacific Biosciences of California, Inc.
InstitutionPrudential Financial Inc
Latest Disclosed Ownership43,487 shares
Latest Disclosed Value $ 57,403
Prudential Financial Inc reports 91.26% increase in ownership of PACB / Pacific Biosciences of California, Inc.

On May 13, 2026 - Prudential Financial Inc filed a 13F-HR form disclosing ownership of 43,487 shares of Pacific Biosciences of California, Inc. (US:PACB) valued at $57,403 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 22,737 shares of Pacific Biosciences of California, Inc.. This represents a change in shares of 91.26% during the quarter. The current value of the position is $70,884 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date		 Effective
Date		Form Security Class ID Avg Price
Paid (Est)		 Reported
Shares		 ΔShares ΔShares
(%)		 Reported
Value
(x1000)		 ΔValue
(%)		 Alloc
(%)		 ΔAlloc ΔAlloc (%) Cost Basis
(x1000)		 Unrealized
Gain/Loss
(x1000)
2026-05-13 2026-03-31 13F PACIFIC BIOSCIENCES CALIF IN COM 69404D108 43,487 20,750 91.26 57 35.71 0.0000
2026-02-13 2025-12-31 13F PACIFIC BIOSCIENCES CALIF IN COM 69404D108 22,737 -12,947 -36.28 43 -6.67 0.0001
2025-11-13 2025-09-30 13F PACIFIC BIOSCIENCES CALIF IN COM 69404D108 35,684 0 0.00 46 2.27 0.0001
2025-08-12 2025-06-30 13F PACIFIC BIOSCIENCES CALIF IN COM 69404D108 35,684 15,062 73.04 44 83.33 0.0001
2025-05-13 2025-03-31 13F PACIFIC BIOSCIENCES CALIF IN COM 69404D108 20,622 390 1.93 24 -35.14 0.0000
2025-02-11 2024-12-31 13F PACIFIC BIOSCIENCES CALIF IN COM 69404D108 20,232 0 0.00 37 8.82 0.0001
2024-11-14 2024-09-30 13F PACIFIC BIOSCIENCES CALIF IN COM 69404D108 20,232 1,670 9.00 34 36.00 0.0000
2024-08-13 2024-06-30 13F PACIFIC BIOSCIENCES CALIF IN COM 69404D108 18,562 0 0.00 25 -63.77 0.0000
2024-05-14 2024-03-31 13F PACIFIC BIOSCIENCES CALIF IN COM 69404D108 18,562 -228 -1.21 70 -62.50 0.0001
2024-02-13 2023-12-31 13F PACIFIC BIOSCIENCES CALIF IN COM 69404D108 18,790 628 3.46 184 21.85 0.0003
2023-11-13 2023-09-30 13F PACIFIC BIOSCIENCES CALIF IN COM 69404D108 18,162 -52,410 -74.26 152 -83.90 0.0002
2023-08-11 2023-06-30 13F PACIFIC BIOSCIENCES CALIF IN COM 69404D108 70,572 53,360 310.02 939 1,134.21 0.0014
2023-05-12 2023-03-31 13F PACIFIC BIOSCIENCES CALIF IN COM 69404D108 17,212 1,060 6.56 77 -42.42 0.0001
2023-02-14 2022-12-31 13F PACIFIC BIOSCIENCES CALIF IN COM 69404D108 16,152 -292 -1.78 132 80.82 0.0002
2022-11-04 2022-09-30 13F PACIFIC BIOSCIENCES CALIF IN COM 69404D108 16,444 140 0.86 73 -29.13 0.0001
2022-08-15 2022-06-30 13F PACIFIC BIOSCIENCES CALIF IN COM 69404D108 16,304 1,229 8.15 103 -24.82 0.0002
2022-05-13 2022-03-31 13F PACIFIC BIOSCIENCES CALIF IN COM 69404D108 15,075 353 2.40 137 -54.49 0.0002
2022-02-14 2021-12-31 13F PACIFIC BIOSCIENCES CALIF IN COM 69404D108 14,722 -2,531 -14.67 301 -40.75 0.0004
2021-11-15 2021-09-30 13F PACIFIC BIOSCIENCES CALIF IN COM 69404D108 17,253 927 5.68 508 -11.03 0.0007
2021-08-16 2021-06-30 13F PACIFIC BIOSCIENCES CALIF IN COM 69404D108 16,326 891 5.77 571 11.09 0.0008
2021-05-12 2021-03-31 13F PACIFIC BIOSCIENCES CALIF IN COM 69404D108 15,435 1,773 12.98 514 45.20 0.0008
2021-08-16 2020-12-31 13F/A-1 PACIFIC BIOSCIENCES CALIF IN COM 0025 69404D108 13,662 1,540 12.70 354 195.00 0.0006
2021-02-16 2020-12-31 13F PACIFIC BIOSCIENCES CALIF IN COM 69404D108 13,662 1,540 354 0.0006
2020-11-16 2020-09-30 13F PACIFIC BIOSCIENCES CALIF IN COM 69404D108 12,122 -7,190 -37.23 120 79.10 0.0002
2020-08-12 2020-06-30 13F PACIFIC BIOSCIENCES CALIF IN COM 69404D108 19,312 8,820 84.06 67 109.38 0.0001
2020-05-12 2020-03-31 13F PACIFIC BIOSCIENCES CALIF IN COM 69404D108 10,492 -1,700 -13.94 32 -49.21 0.0001
2020-02-11 2019-12-31 13F PACIFIC BIOSCIENCES CALIF IN COM 69404D108 12,192 210 1.75 63 1.61 0.0001
2019-11-13 2019-09-30 13F PACIFIC BIOSCIENCES CALIF IN COM 69404D108 11,982 -2,230 -15.69 62 -27.91 0.0001
2019-08-08 2019-06-30 13F PACIFIC BIOSCIENCES CALIF IN COM 69404D108 14,212 1,650 13.13 86 -5.49 0.0001
2019-05-15 2019-03-31 13F PACIFIC BIOSCIENCES CALIF IN COM 69404D108 12,562 160 1.29 91 -1.09 0.0002
2019-02-07 2018-12-31 13F PACIFIC BIOSCIENCES CALIF IN COM 69404D108 12,402 2,220 21.80 92 67.27 0.0002
2018-11-07 2018-09-30 13F PACIFIC BIOSCIENCES CALIF IN COM 69404D108 10,182 -430 -4.05 55 44.74 0.0001
2018-08-13 2018-06-30 13F PACIFIC BIOSCIENCES CALIF IN COM 69404D108 10,612 10,612 4.22 38 -30.91 0.0001
2017-02-07 2016-12-31 13F PACIFIC BIOSCIENCES CALIF IN COM 69404D108 0 -34,242 -100.00 0 -100.00
2016-11-04 2016-09-30 13F PACIFIC BIOSCIENCES CALIF IN COM 69404D108 34,242 680 2.03 307 29.54 0.0005
2016-08-09 2016-06-30 13F PACIFIC BIOSCIENCES CALIF IN COM 69404D108 33,562 3,900 13.15 237 -5.95 0.0004
2016-05-09 2016-03-31 13F PACIFIC BIOSCIENCES CALIF IN COM 69404D108 29,662 2,200 8.01 252 -30.19 0.0005
2016-02-12 2015-12-31 13F PACIFIC BIOSCIENCES CALIF IN COM 69404D108 27,462 -32,000 -53.82 361 65.60 0.0007
2015-11-10 2015-09-30 13F PACIFIC BIOSCIENCES CALIF IN COM 69404D108 59,462 59,462 218 0.0004
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.