캘리포니아주 퍼시픽 바이오사이언시스(Pacific Biosciences of California, Inc.)
US ˙ NasdaqGS ˙ US69404D1081

SecurityPACB / Pacific Biosciences of California, Inc.
InstitutionMorgan Stanley
Latest Disclosed Ownership1,840,461 shares
Latest Disclosed Value $ 2,429,409
Morgan Stanley reports 23.65% decrease in ownership of PACB / Pacific Biosciences of California, Inc.

On May 15, 2026 - Morgan Stanley filed a 13F-HR form disclosing ownership of 1,840,461 shares of Pacific Biosciences of California, Inc. (US:PACB) valued at $2,429,409 USD as of March 31, 2026. The entity filed a previous 13F-HR/A on May 27, 2026 disclosing 2,410,540 shares of Pacific Biosciences of California, Inc.. This represents a change in shares of -23.65% during the quarter. The current value of the position is $2,999,951 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)
2026-05-15 2026-03-31 13F PACIFIC BIOSCIENCES CALIF IN COM 69404D108 1,840,461 -570,079 -23.65 2,429 -46.11 0.0001
2026-05-27 2025-12-31 13F/A-1 PACIFIC BIOSCIENCES CALIF IN COM 69404D108 2,410,540 1,959,325 434.23 4,508 681.11 0.0003
2026-02-13 2025-12-31 13F PACIFIC BIOSCIENCES CALIF IN COM 69404D108 2,410,540 1,959,325 4,508 0.0003
2026-05-27 2025-09-30 13F/A-1 PACIFIC BIOSCIENCES CALIF IN COM 69404D108 451,215 -380,555 -45.75 578 -44.03 0.0000
2025-11-14 2025-09-30 13F PACIFIC BIOSCIENCES CALIF IN COM 69404D108 451,215 -380,555 578 0.0000
2025-08-15 2025-06-30 13F PACIFIC BIOSCIENCES CALIF IN COM 69404D108 831,770 -2,539,962 -75.33 1,031 -74.08 0.0001
2025-05-15 2025-03-31 13F PACIFIC BIOSCIENCES CALIF IN COM 69404D108 3,371,732 -2,279,826 -40.34 3,979 -61.54 0.0003
2025-05-15 2024-12-31 13F/A-1 PACIFIC BIOSCIENCES CALIF IN COM 69404D108 5,651,558 1,759,016 45.19 10,342 56.29 0.0007
2025-02-14 2024-12-31 13F PACIFIC BIOSCIENCES CALIF IN COM 69404D108 5,651,558 1,759,016 10,342 0.0007
2025-05-14 2024-09-30 13F/A-2 PACIFIC BIOSCIENCES CALIF IN COM 69404D108 3,892,542 812,786 26.39 6,617 56.84 0.0005
2025-02-14 2024-09-30 13F/A-1 PACIFIC BIOSCIENCES CALIF IN COM 69404D108 3,892,542 812,786 6,617 0.0005
2024-11-14 2024-09-30 13F PACIFIC BIOSCIENCES CALIF IN COM 69404D108 3,892,542 812,786 6,617 0.0005
2025-05-14 2024-06-30 13F/A-2 PACIFIC BIOSCIENCES CALIF IN COM 69404D108 3,079,756 1,176,905 61.85 4,219 -40.87 0.0003
2024-10-17 2024-06-30 13F/A-1 PACIFIC BIOSCIENCES CALIF IN COM 69404D108 3,079,756 1,176,905 4,219 0.0003
2024-08-14 2024-06-30 13F PACIFIC BIOSCIENCES CALIF IN COM 69404D108 3,079,756 1,176,905 4,219 0.0003
2024-10-17 2024-03-31 13F/A-2 PACIFIC BIOSCIENCES CALIF IN COM 69404D108 1,902,851 -9,206,731 -82.87 7,136 -93.45 0.0006
2024-08-16 2024-03-31 13F/A-1 PACIFIC BIOSCIENCES CALIF IN COM 69404D108 1,902,851 -9,206,731 7,136 0.0006
2024-05-15 2024-03-31 13F PACIFIC BIOSCIENCES CALIF IN COM 69404D108 1,902,851 -9,206,731 7,136 0.0006
2024-08-16 2023-12-31 13F/A-1 PACIFIC BIOSCIENCES CALIF IN COM 69404D108 11,109,582 8,824,381 386.15 108,985 471.17 0.0096
2024-02-13 2023-12-31 13F PACIFIC BIOSCIENCES CALIF IN COM 69404D108 11,109,582 8,824,381 108,985 0.0096
2023-11-15 2023-09-30 13F PACIFIC BIOSCIENCES CALIF IN COM 69404D108 2,285,201 549,604 31.67 19,081 -17.34 0.0019
2023-08-14 2023-06-30 13F PACIFIC BIOSCIENCES CALIF IN COM 69404D108 1,735,597 -318,931 -15.52 23,083 -2.98 0.0023
2023-05-15 2023-03-31 13F PACIFIC BIOSCIENCES CALIF IN COM 69404D108 2,054,528 773,836 60.42 23,791 127.10 0.0026
2023-02-14 2022-12-31 13F PACIFIC BIOSCIENCES CALIF IN COM 69404D108 1,280,692 -1,294,188 -50.26 10,476 -29.92 0.0012
2022-11-14 2022-09-30 13F PACIFIC BIOSCIENCES CALIF IN COM 69404D108 2,574,880 -641,686 -19.95 14,948 5.14 0.0020
2022-10-27 2022-06-30 13F/A-1 PACIFIC BIOSCIENCES CALIF IN COM 69404D108 3,216,566 1,267,924 65.07 14,217 -19.83 0.0018
2022-08-15 2022-06-30 13F PACIFIC BIOSCIENCES CALIF IN COM 69404D108 3,216,566 1,267,924 14,217 0.0018
2022-10-27 2022-03-31 13F/A-1 PACIFIC BIOSCIENCES CALIF IN COM 69404D108 1,948,642 840,967 75.92 17,733 -21.75 0.0024
2022-05-13 2022-03-31 13F PACIFIC BIOSCIENCES CALIF IN COM 69404D108 1,948,642 840,967 17,733 0.0024
2022-02-14 2021-12-31 13F PACIFIC BIOSCIENCES CALIF IN COM 69404D108 1,107,675 -438,882 -28.38 22,662 -42.65 0.0028
2021-11-15 2021-09-30 13F PACIFIC BIOSCIENCES CALIF IN COM 69404D108 1,546,557 604,726 64.21 39,514 19.98 0.0053
2021-08-23 2021-06-30 13F/A-1 PACIFIC BIOSCIENCES CALIF IN COM 69404D108 941,831 85,278 9.96 32,935 15.44 0.0043
2021-08-16 2021-06-30 13F PACIFIC BIOSCIENCES CALIF IN COM 69404D108 941,831 85,278 32,935 0.0009
2021-05-17 2021-03-31 13F PACIFIC BIOSCIENCES CALIF IN COM 69404D108 856,553 340,371 65.94 28,531 113.08 0.0042
2021-02-16 2020-12-31 13F PACIFIC BIOSCIENCES CALIF IN COM 69404D108 516,182 308,103 148.07 13,390 552.22 0.0021
2020-11-13 2020-09-30 13F PACIFIC BIOSCIENCES CALIF IN COM 69404D108 208,079 -1,073,575 -83.76 2,053 -53.57 0.0004
2020-08-14 2020-06-30 13F PACIFIC BIOSCIENCES CALIF IN COM 69404D108 1,281,654 1,157,197 929.80 4,422 1,060.63 0.0010
2020-05-26 2020-03-31 13F/A-1 PACIFIC BIOSCIENCES CALIF IN COM 69404D108 124,457 -1,450,061 -92.10 381 -95.29 0.0001
2020-05-15 2020-03-31 13F PACIFIC BIOSCIENCES CALIF IN COM 69404D108 124,457 -1,450,061 381 29.2687
2020-02-14 2019-12-31 13F PACIFIC BIOSCIENCES CALIF IN COM 69404D108 1,574,518 684,917 76.99 8,093 76.32 0.0019
2019-11-14 2019-09-30 13F PACIFIC BIOSCIENCES CALIF IN COM 69404D108 889,601 448,151 101.52 4,590 71.85 0.0012
2019-08-14 2019-06-30 13F PACIFIC BIOSCIENCES CALIF IN COM 69404D108 441,450 215,976 95.79 2,671 63.87 0.0007
2019-05-15 2019-03-31 13F PACIFIC BIOSCIENCES CALIF IN COM 69404D108 225,474 -80,464 -26.30 1,630 -28.00 0.0005
2019-02-14 2018-12-31 13F PACIFIC BIOSCIENCES CALIF IN COM 69404D108 305,938 73,283 31.50 2,264 79.83 0.0007
2019-04-23 2018-09-30 13F/A-2 PACIFIC BIOSCIENCES CALIF IN COM 69404D108 232,655 -66,420 -22.21 1,259 18.55 0.0003
2018-11-20 2018-09-30 13F/A-1 PACIFIC BIOSCIENCES CALIF IN COM 69404D108 232,655 0 1,259 0.0003
2018-11-14 2018-09-30 13F PACIFIC BIOSCIENCES CALIF IN COM 69404D108 232,655 -66,420 1,259
2019-04-23 2018-06-30 13F/A-1 PACIFIC BIOSCIENCES CALIF IN COM 69404D108 299,075 19,954 7.15 1,062 85.34 0.0003
2018-08-14 2018-06-30 13F PACIFIC BIOSCIENCES CALIF IN COM 69404D108 299,075 19,954 1,062
2019-04-23 2018-03-31 13F/A-1 PACIFIC BIOSCIENCES CALIF IN COM 69404D108 279,121 30,269 12.16 573 -12.79 0.0002
2018-05-14 2018-03-31 13F PACIFIC BIOSCIENCES CALIF IN COM 69404D108 279,121 30,269 573
2019-04-23 2017-12-31 13F/A-1 PACIFIC BIOSCIENCES CALIF IN COM 69404D108 248,852 76,594 44.46 657 -27.32 0.0002
2018-02-14 2017-12-31 13F PACIFIC BIOSCIENCES CALIF IN COM 69404D108 248,852 76,594 657
2017-11-14 2017-09-30 13F PACIFIC BIOSCIENCES CALIF IN COM 69404D108 172,258 70,285 68.93 904 149.04 0.0003
2017-08-11 2017-06-30 13F PACIFIC BIOSCIENCES CALIF IN COM 69404D108 101,973 -671,546 -86.82 363 -90.92 0.0001
2017-05-22 2017-03-31 13F/A-1 PACIFIC BIOSCIENCES CALIF IN COM 69404D108 773,519 435,774 129.02 3,998 211.37 0.0012
2017-05-12 2017-03-31 13F PACIFIC BIOSCIENCES CALIF IN COM 69404D108 773,519 3,998
2017-02-22 2016-12-31 13F/A-1 PACIFIC BIOSCIENCES CALIF IN COM 69404D108 337,745 281,224 497.56 1,284 153.25 0.0004
2017-02-13 2016-12-31 13F PACIFIC BIOSCIENCES CALIF IN COM 69404D108 337,745 1,284
2016-11-10 2016-09-30 13F PACIFIC BIOSCIENCES CALIF IN COM 69404D108 56,521 -61,363 -52.05 507 -38.77 0.0002
2016-08-12 2016-06-30 13F PACIFIC BIOSCIENCES CALIF IN COM 69404D108 117,884 24,898 26.78 828 4.68 0.0003
2016-05-12 2016-03-31 13F PACIFIC BIOSCIENCES CALIF IN COM 69404D108 92,986 -284,163 -75.35 791 -84.03 0.0003
2016-02-09 2015-12-31 13F PACIFIC BIOSCIENCES CALIF IN COM 69404D108 377,149 358,072 1,876.98 4,952 6,974.29 0.0018
2016-02-08 2015-09-30 13F/A-1 PACIFIC BIOSCIENCES CALIF IN COM 69404D108 19,077 4,955 35.09 70 -13.58 0.0000
2015-11-09 2015-09-30 13F PACIFIC BIOSCIENCES CALIF IN COM 69404D108 19,077 70
2015-08-12 2015-06-30 13F PACIFIC BIOSCIENCES CALIF IN COM 69404D108 14,122 1,264 9.83 81 8.00 0.0000
2015-05-14 2015-03-31 13F PACIFIC BIOSCIENCES CALIF IN COM 69404D108 12,858 -43,217 -77.07 75 -82.95 0.0000
2015-02-13 2014-12-31 13F PACIFIC BIOSCIENCES CALIF IN COM 69404D108 56,075 31,062 124.18 440 257.72 0.0002
2014-12-16 2014-09-30 13F/A-1 PACIFIC BIOSCIENCES CALIF IN COM 69404D108 25,013 -328,437 -92.92 123 -93.50 0.0000
2014-11-14 2014-09-30 13F PACIFIC BIOSCIENCES CALIF IN COM 69404D108 25,013 123
2014-05-13 2014-03-31 13F PACIFIC BIOSCIENCES CALIF IN COM 69404D108 353,450 63,622 21.95 1,891 24.74 0.0008
2014-02-13 2013-12-31 13F PACIFIC BIOSCIENCES CALIF IN COM 69404D108 289,828 211,936 272.09 1,516 252.56 0.0006
2013-11-13 2013-09-30 13F PACIFIC BIOSCIENCES OF CALI COM 69404D108 77,892 61,478 374.55 430 923.81 0.0002
2013-08-08 2013-06-30 13F PACIFIC BIOSCIENCES OF CALI COM 69404D108 16,414 16,414 42 0.0000
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.