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

SecurityPACB / Pacific Biosciences of California, Inc.
InstitutionAbacus Planning Group, Inc.
Latest Disclosed Ownership51,238 shares
Latest Disclosed Value $ 67,634
Abacus Planning Group, Inc. reports 48.76% decrease in ownership of PACB / Pacific Biosciences of California, Inc.

On April 7, 2026 - Abacus Planning Group, Inc. filed a 13F-HR form disclosing ownership of 51,238 shares of Pacific Biosciences of California, Inc. (US:PACB) valued at $67,634 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 16, 2026 disclosing 100,000 shares of Pacific Biosciences of California, Inc.. This represents a change in shares of -48.76% during the quarter. The current value of the position is $83,518 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)
2026-04-07 2026-03-31 13F PACIFIC BIOSCIENCES CALIF IN COM 69404D108 51,238 -48,762 -48.76 68 -64.17 0.0091
2026-01-16 2025-12-31 13F PACIFIC BIOSCIENCES CALIF IN COM 69404D108 100,000 0 0.00 187 46.09 0.0249
2025-10-22 2025-09-30 13F PACIFIC BIOSCIENCES CALIF IN COM 69404D108 100,000 0 0.00 128 3.23 0.0177
2025-07-21 2025-06-30 13F/A-1 PACIFIC BIOSCIENCES CALIF IN COM 69404D108 100,000 0 0.00 124 5.08 0.0184
2025-04-14 2025-03-31 13F PACIFIC BIOSCIENCES CALIF IN COM 69404D108 100,000 0 0.00 118 -35.52 0.0207
2025-02-03 2024-12-31 13F PACIFIC BIOSCIENCES CALIF IN COM 69404D108 100,000 0 0.00 183 7.65 0.0322
2024-10-02 2024-09-30 13F PACIFIC BIOSCIENCES CALIF IN COM 69404D108 100,000 0 0.00 170 24.09 0.0304
2024-07-31 2024-06-30 13F PACIFIC BIOSCIENCES CALIF IN COM 69404D108 100,000 0 0.00 137 -63.47 0.0266
2024-04-12 2024-03-31 13F PACIFIC BIOSCIENCES CALIF IN COM 69404D108 100,000 0 0.00 375 -61.77 0.0733
2024-01-19 2023-12-31 13F PACIFIC BIOSCIENCES CALIF IN COM 69404D108 100,000 0 0.00 981 17.49 0.2069
2023-10-11 2023-09-30 13F PACIFIC BIOSCIENCES CALIF IN COM 69404D108 100,000 0 0.00 835 -37.22 0.2032
2023-07-07 2023-06-30 13F PACIFIC BIOSCIENCES CALIF IN COM 69404D108 100,000 -20,000 -16.67 1,330 -4.25 0.3218
2023-04-18 2023-03-31 13F PACIFIC BIOSCIENCES CALIF IN COM 69404D108 120,000 0 0.00 1,390 41.59 0.3581
2023-01-19 2022-12-31 13F PACIFIC BIOSCIENCES CALIF IN COM 69404D108 120,000 -20,000 -14.29 982 20.66 0.2684
2022-10-19 2022-09-30 13F PACIFIC BIOSCIENCES CALIF IN COM 69404D108 140,000 0 0.00 813 31.34 0.2454
2022-07-18 2022-06-30 13F PACIFIC BIOSCIENCES CALIF IN COM 69404D108 140,000 0 0.00 619 -51.41 0.1824
2022-04-13 2022-03-31 13F PACIFIC BIOSCIENCES CALIF IN COM 69404D108 140,000 -15,000 -9.68 1,274 -59.82 0.3430
2022-01-18 2021-12-31 13F PACIFIC BIOSCIENCES CALIF IN COM 69404D108 155,000 -25,000 -13.89 3,171 -31.05 0.8468
2021-10-19 2021-09-30 13F PACIFIC BIOSCIENCES CALIF IN COM 69404D108 180,000 0 0.00 4,599 -26.94 1.4642
2021-07-20 2021-06-30 13F PACIFIC BIOSCIENCES CALIF IN COM 69404D108 180,000 0 0.00 6,295 4.99 1.9221
2021-04-27 2021-03-31 13F PACIFIC BIOSCIENCES CALIF IN COM 69404D108 180,000 -220,000 -55.00 5,996 -42.21 1.9185
2021-02-01 2020-12-31 13F PACIFIC BIOSCIENCES CALIF IN COM 69404D108 400,000 -302,937 -43.10 10,376 49.55 3.2032
2020-11-03 2020-09-30 13F PACIFIC BIOSCIENCES CALIF IN COM 69404D108 702,937 702,937 6,938 2.5306
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.