Pacific Biosciences of California, Inc.
MX ˙ BMV ˙ US69404D1081
SecurityMX:PACB / Pacific Biosciences of California, Inc.
InstitutionPrincipal Financial Group Inc
Latest Disclosed Ownership11,998 shares
Latest Disclosed Value $ 15,837
Principal Financial Group Inc reports 0.97% decrease in ownership of PACB / Pacific Biosciences of California, Inc.

On May 4, 2026 - Principal Financial Group Inc filed a 13F-HR form disclosing ownership of 11,998 shares of Pacific Biosciences of California, Inc. (MX:PACB) valued at $15,837 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 2, 2026 disclosing 12,115 shares of Pacific Biosciences of California, Inc.. This represents a change in shares of -0.97% during the quarter.

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)
2026-05-04 2026-03-31 13F PACIFIC BIOSCIENCES CALIF IN COM 69404D108 11,998 -117 -0.97 16 -31.82 0.0000
2026-02-02 2025-12-31 13F PACIFIC BIOSCIENCES CALIF IN COM 69404D108 12,115 -7,494 -38.22 23 -12.00 0.0000
2025-11-04 2025-09-30 13F PACIFIC BIOSCIENCES CALIF IN COM 69404D108 19,609 1,007 5.41 25 8.70 0.0000
2025-08-08 2025-06-30 13F PACIFIC BIOSCIENCES CALIF IN COM 69404D108 18,602 167 0.91 23 9.52 0.0000
2025-04-28 2025-03-31 13F PACIFIC BIOSCIENCES CALIF IN COM 69404D108 18,435 3,187 20.90 22 -22.22 0.0000
2025-01-31 2024-12-31 13F PACIFIC BIOSCIENCES CALIF IN COM 69404D108 15,248 -3,917 -20.44 28 -15.62 0.0000
2024-10-31 2024-09-30 13F PACIFIC BIOSCIENCES CALIF IN COM 69404D108 19,165 -17,601 -47.87 33 -36.00 0.0000
2024-07-29 2024-06-30 13F PACIFIC BIOSCIENCES CALIF IN COM 69404D108 36,766 -23,612 -39.11 50 -77.88 0.0000
2024-04-29 2024-03-31 13F PACIFIC BIOSCIENCES CALIF IN COM 69404D108 60,378 -1,095 -1.78 226 -62.52 0.0001
2024-02-07 2023-12-31 13F PACIFIC BIOSCIENCES CALIF IN COM 69404D108 61,473 -2,751 -4.28 603 12.50 0.0004
2023-11-02 2023-09-30 13F PACIFIC BIOSCIENCES CALIF IN COM 69404D108 64,224 4,488 7.51 536 -32.49 0.0004
2023-08-07 2023-06-30 13F PACIFIC BIOSCIENCES CALIF IN COM 69404D108 59,736 -955 -1.57 794 13.11 0.0005
2023-05-09 2023-03-31 13F PACIFIC BIOSCIENCES CALIF IN COM 69404D108 60,691 12,007 24.66 703 76.38 0.0005
2023-02-09 2022-12-31 13F PACIFIC BIOSCIENCES CALIF IN COM 69404D108 48,684 -244 -0.50 398 40.14 0.0003
2022-11-09 2022-09-30 13F PACIFIC BIOSCIENCES CALIF IN COM 69404D108 48,928 12,293 33.56 284 75.31 0.0002
2022-08-10 2022-06-30 13F PACIFIC BIOSCIENCES CALIF IN COM 69404D108 36,635 -10,744 -22.68 162 -62.41 0.0001
2022-05-09 2022-03-31 13F PACIFIC BIOSCIENCES CALIF IN COM 69404D108 47,379 -857 -1.78 431 -56.29 0.0002
2022-05-09 2022-03-31 13F PACIFIC BIOSCIENCES CALIF IN COM 69404D108 22,652 206
2022-02-09 2021-12-31 13F PACIFIC BIOSCIENCES CALIF IN COM 69404D108 48,236 -18,355 -27.56 986 -42.03 0.0006
2021-11-09 2021-09-30 13F PACIFIC BIOSCIENCES CALIF IN COM 69404D108 66,591 -5,058 -7.06 1,701 -32.10 0.0011
2021-08-10 2021-06-30 13F PACIFIC BIOSCIENCES CALIF IN COM 69404D108 71,649 -4,567 -5.99 2,505 -1.30 0.0016
2021-05-10 2021-03-31 13F PACIFIC BIOSCIENCES CALIF IN COM 69404D108 76,216 -897 -1.16 2,538 26.90 0.0018
2021-02-23 2020-12-31 13F/A-1 PACIFIC BIOSCIENCES CALIF IN COM 69404D108 77,113 21,173 37.85 2,000 262.32 0.0015
2021-02-08 2020-12-31 13F PACIFIC BIOSCIENCES CALIF IN COM 69404D108 77,113 21,173 2,000 786.8308
2020-11-06 2020-09-30 13F PACIFIC BIOSCIENCES CALIF IN COM 69404D108 55,940 152 0.27 552 186.01 0.0005
2020-08-05 2020-06-30 13F PACIFIC BIOSCIENCES CALIF IN COM 69404D108 55,788 35,786 178.91 193 216.39 0.0002
2020-05-12 2020-03-31 13F PACIFIC BIOSCIENCES CALIF IN COM 69404D108 20,002 898 4.70 61 -37.76 0.0001
2020-02-05 2019-12-31 13F PACIFIC BIOSCIENCES CALIF IN COM 69404D108 19,104 -3,246 -14.52 98 -14.78 0.0001
2019-11-13 2019-09-30 13F PACIFIC BIOSCIENCES CALIF IN COM 69404D108 22,350 4,239 23.41 115 4.55 0.0001
2019-08-12 2019-06-30 13F PACIFIC BIOSCIENCES CALIF IN COM 69404D108 18,111 -1,048 -5.47 110 -20.86 0.0001
2019-05-10 2019-03-31 13F PACIFIC BIOSCIENCES CALIF IN COM 69404D108 19,159 -16,733 -46.62 139 -47.55 0.0001
2019-02-14 2018-12-31 13F PACIFIC BIOSCIENCES CALIF IN COM 69404D108 35,892 -8,571 -19.28 265 10.42 0.0003
2018-11-14 2018-09-30 13F PACIFIC BIOSCIENCES CALIF IN COM 69404D108 44,463 5,632 14.50 240 73.91 0.0002
2018-08-13 2018-06-30 13F PACIFIC BIOSCIENCES CALIF IN COM 69404D108 38,831 3,353 9.45 138 91.67 0.0001
2018-05-14 2018-03-31 13F PACIFIC BIOSCIENCES CALIF IN COM 69404D108 35,478 -644 -1.78 72 -24.21 0.0001
2018-02-12 2017-12-31 13F PACIFIC BIOSCIENCES CALIF IN COM 69404D108 36,122 22,295 161.24 95 30.14 0.0001
2017-11-02 2017-09-30 13F PACIFIC BIOSCIENCES CALIF IN COM 69404D108 13,827 13,827 73 0.0001
2017-08-08 2017-06-30 13F PACIFIC BIOSCIENCES CALIF IN COM 69404D108 0 -15,074 -100.00 0 -100.00
2017-05-11 2017-03-31 13F PACIFIC BIOSCIENCES CALIF IN COM 69404D108 15,074 -479 -3.08 78 32.20 0.0001
2017-02-13 2016-12-31 13F PACIFIC BIOSCIENCES CALIF IN COM 69404D108 15,553 -9,811 -38.68 59 -74.01 0.0001
2016-11-10 2016-09-30 13F PACIFIC BIOSCIENCES CALIF IN COM 69404D108 25,364 10,942 75.87 227 124.75 0.0003
2016-08-09 2016-06-30 13F PACIFIC BIOSCIENCES CALIF IN COM 69404D108 14,422 2,227 18.26 101 -2.88 0.0001
2016-05-10 2016-03-31 13F PACIFIC BIOSCIENCES CALIF IN COM 69404D108 12,195 1,948 19.01 104 -22.96 0.0002
2016-02-09 2015-12-31 13F PACIFIC BIOSCIENCES CALIF IN COM 69404D108 10,247 0 0.00 135 255.26 0.0002
2015-11-12 2015-09-30 13F/A-1 PACIFIC BIOSCIENCES CALIF IN COM 69404D108 10,247 -6,528 -38.92 38 -60.82 0.0001
2015-11-09 2015-09-30 13F PACIFIC BIOSCIENCES CALIF IN COM 69404D108 10,247 38
2015-08-10 2015-06-30 13F PACIFIC BIOSCIENCES CALIF IN COM 69404D108 16,775 -251 -1.47 97 -3.00 0.0001
2015-05-14 2015-03-31 13F/A-1 PACIFIC BIOSCIENCES CALIF IN COM 69404D108 17,026 1,042 6.52 100 -20.00 0.0001
2015-05-12 2015-03-31 13F PACIFIC BIOSCIENCES CALIF IN COM 69404D108 17,026 99
2015-02-12 2014-12-31 13F PACIFIC BIOSCIENCES CALIF IN COM 69404D108 15,984 -2,808 -14.94 125 35.87 0.0002
2014-11-13 2014-09-30 13F PACIFIC BIOSCIENCES CALIF IN COM 69404D108 18,792 0 0.00 92 -20.69 0.0002
2014-08-12 2014-06-30 13F PACIFIC BIOSCIENCES CALIF IN COM 69404D108 18,792 -1,484 -7.32 116 7.41 0.0002
2014-05-13 2014-03-31 13F PACIFIC BIOSCIENCES CALIF IN COM 69404D108 20,276 -415 -2.01 108 0.00 0.0002
2014-02-12 2013-12-31 13F PACIFIC BIOSCIENCES CALIF IN COM 69404D108 20,691 20,691 0.84 108 107.69 0.0002
2013-11-05 2013-09-30 13F PACIFIC BIOSCIENCES CALIF IN COM 69404D108 0 -20,519 -100.00 0 -100.00
2013-08-12 2013-06-30 13F PACIFIC BIOSCIENCES CALIF IN COM 69404D108 20,519 20,519 52 0.0001
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.