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

SecurityPACB / Pacific Biosciences of California, Inc.
InstitutionStifel Financial Corp
Latest Disclosed Ownership70,026 shares
Latest Disclosed Value $ 92,433
Stifel Financial Corp reports 1.18% decrease in ownership of PACB / Pacific Biosciences of California, Inc.

On May 12, 2026 - Stifel Financial Corp filed a 13F-HR form disclosing ownership of 70,026 shares of Pacific Biosciences of California, Inc. (US:PACB) valued at $92,434 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 70,860 shares of Pacific Biosciences of California, Inc.. This represents a change in shares of -1.18% during the quarter. The current value of the position is $114,142 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)
2026-05-12 2026-03-31 13F PACIFIC BIOSCIENCES CALIF IN COM 69404D108 70,026 -834 -1.18 92 -30.30 0.0000
2026-02-13 2025-12-31 13F PACIFIC BIOSCIENCES CALIF IN COM 69404D108 70,860 16,151 29.52 133 88.57 0.0001
2025-11-12 2025-09-30 13F PACIFIC BIOSCIENCES CALIF IN COM 69404D108 54,709 -2,403 -4.21 70 0.00 0.0001
2025-08-14 2025-06-30 13F PACIFIC BIOSCIENCES CALIF IN COM 69404D108 57,112 -2,420 -4.07 71 0.00 0.0001
2025-05-14 2025-03-31 13F PACIFIC BIOSCIENCES CALIF IN COM 69404D108 59,532 -7,999 -11.84 70 -43.09 0.0001
2025-02-13 2024-12-31 13F PACIFIC BIOSCIENCES CALIF IN COM 69404D108 67,531 16,843 33.23 124 43.02 0.0001
2024-11-14 2024-09-30 13F PACIFIC BIOSCIENCES CALIF IN COM 69404D108 50,688 6,129 13.75 86 40.98 0.0001
2024-08-13 2024-06-30 13F PACIFIC BIOSCIENCES CALIF IN COM 69404D108 44,559 -11,515 -20.54 61 -70.95 0.0001
2024-05-14 2024-03-31 13F PACIFIC BIOSCIENCES CALIF IN COM 69404D108 56,074 -77,800 -58.11 210 -84.01 0.0002
2024-02-12 2023-12-31 13F PACIFIC BIOSCIENCES CALIF IN COM 69404D108 133,874 37,556 38.99 1,313 63.31 0.0017
2023-11-13 2023-09-30 13F PACIFIC BIOSCIENCES CALIF IN COM 69404D108 96,318 11,219 13.18 804 -28.91 0.0011
2023-08-14 2023-06-30 13F PACIFIC BIOSCIENCES CALIF IN COM 69404D108 85,099 -864 -1.01 1,132 13.67 0.0015
2023-05-12 2023-03-31 13F PACIFIC BIOSCIENCES CALIF IN COM 69404D108 85,963 -16,685 -16.25 995 18.59 0.0014
2023-02-13 2022-12-31 13F PACIFIC BIOSCIENCES CALIF IN COM 69404D108 102,648 -5,416 -5.01 840 33.81 0.0013
2022-11-14 2022-09-30 13F PACIFIC BIOSCIENCES CALIF IN COM 69404D108 108,064 10,310 10.55 627 45.14 0.0010
2022-08-15 2022-06-30 13F PACIFIC BIOSCIENCES CALIF IN COM 69404D108 97,754 7,185 7.93 432 -47.57 0.0007
2022-05-13 2022-03-31 13F PACIFIC BIOSCIENCES CALIF IN COM 69404D108 90,569 25,316 38.80 824 -38.28 0.0011
2022-02-14 2021-12-31 13F PACIFIC BIOSCIENCES CALIF IN COM 69404D108 65,253 -62,514 -48.93 1,335 -59.10 0.0018
2021-11-15 2021-09-30 13F PACIFIC BIOSCIENCES CALIF IN COM 69404D108 127,767 -1,160 -0.90 3,264 -27.61 0.0048
2021-08-13 2021-06-30 13F PACIFIC BIOSCIENCES CALIF IN COM 69404D108 128,927 19,903 18.26 4,509 24.15 0.0067
2021-05-14 2021-03-31 13F PACIFIC BIOSCIENCES CALIF IN COM 69404D108 109,024 73,343 205.55 3,632 292.22 0.0060
2021-02-12 2020-12-31 13F PACIFIC BIOSCIENCES CALIF IN COM 69404D108 35,681 35,681 926 0.0017
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.