Vanguard Group Inc ownership in PACB / Pacific Biosciences of California, Inc.

Pacific Biosciences of California, Inc.

MX ˙ BMV ˙ US69404D1081

Security	MX:PACB / Pacific Biosciences of California, Inc.
Institution	Vanguard Group Inc
Latest Disclosed Ownership	0 shares
Ownership	0.00%

2026-03-27 - Vanguard Group Inc has filed an SCHEDULE 13G/A form with the Securities and Exchange Commission (SEC) disclosing ownership of 0 shares of Pacific Biosciences of California, Inc. (MX:PACB). This represents 0.0 percent ownership of the company. In their previous filing dated 2025-04-30 , Vanguard Group Inc had reported owning 16,263,411 shares, indicating a decrease of -100.00 percent.

Institutional Ownership: 13D/G Filings

This table shows a history of the 13D/G filings made by the investor and/or investor group. Note that the share values in this table are not directly comparable to any numbers shown in the 13F table (if any).

File Date	Effective Date	Form	Prev Shares	Latest Shares	ΔShares (Percent)	Ownership (Percent)	ΔOwnership (Percent)
2026-03-27	2026-03-27	13G/A	16,263,411	0	-100.00	0.00	-100.00
2025-04-30	2025-04-30	13G/A	17,642,751	16,263,411	-7.82	5.46	-15.61
2024-11-12	2024-11-12	13G/A	17,642,751	17,642,751	0.00	6.47	0.00
2024-11-04	2024-11-04	13G/A	26,789,499	17,642,751	-34.14	6.47	-35.43
2024-01-10	2024-01-10	13G/A	20,279,035	26,789,499	32.10	10.02	11.71
2023-02-09	2023-02-09	13G/A	19,854,876	20,279,035	2.14	8.97	-0.33
2022-02-10	2022-02-10	13G/A	14,320,299	19,854,876	38.65	9.00	16.88
2021-02-10	2021-02-10	13G/A	7,876,485	14,320,299	81.81	7.70	49.81
2020-02-11	2020-02-11	13G		7,876,485		5.14

Important Note: One of the primary uses of the 13D/G filings is to evaluate the ability of a firm to control a company (ie, the "beneficial ownership"). To that end, firms are required to report not just direct holdings in companies, but indirect holdings that they control. For investment firms, these indirect holdings can include shares in funds they manage, advisory accounts, and in the case of activist campaigns, pledged votes. Therefore, share counts listed in 13D/G filings can differ significantly than share counts listed in 13F filings.

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	Reported Shares	ΔShares	ΔShares (%)	Reported Value (x1000)	ΔValue (%)	Alloc (%)
2026-01-29	2025-12-31	13F	PACIFIC BIOSCIENCES CALIF IN	COM	69404D108	17,037,314	657,342	4.01	31,860	51.96	0.0005
2025-11-07	2025-09-30	13F	PACIFIC BIOSCIENCES CALIF IN	COM	69404D108	16,379,972	362,797	2.27	20,966	5.56	0.0003
2025-08-11	2025-06-30	13F	PACIFIC BIOSCIENCES CALIF IN	COM	69404D108	16,017,175	-246,289	-1.51	19,861	3.50	0.0003
2025-05-09	2025-03-31	13F	PACIFIC BIOSCIENCES CALIF IN	COM	69404D108	16,263,464	1,036,606	6.81	19,191	-31.13	0.0003
2025-02-11	2024-12-31	13F	PACIFIC BIOSCIENCES CALIF IN	COM	69404D108	15,226,858	-2,415,946	-13.69	27,865	-7.09	0.0005
2024-11-13	2024-09-30	13F	PACIFIC BIOSCIENCES CALIF IN	COM	69404D108	17,642,804	-8,356,139	-32.14	29,993	-15.80	0.0005
2024-08-13	2024-06-30	13F	PACIFIC BIOSCIENCES CALIF IN	COM	69404D108	25,998,943	-607,542	-2.28	35,619	-64.30	0.0007
2024-05-10	2024-03-31	13F	PACIFIC BIOSCIENCES CALIF IN	COM	69404D108	26,606,485	-183,067	-0.68	99,774	-62.03	0.0020
2024-03-11	2023-12-31	13F/A-1	PACIFIC BIOSCIENCES CALIF IN	COM	69404D108	26,789,552	3,514,792	15.10	262,806	35.23	0.0057
2024-02-14	2023-12-31	13F	PACIFIC BIOSCIENCES CALIF IN	COM	69404D108	26,789,552	3,514,792		262,806		0.0050
2023-12-18	2023-09-30	13F/A-1	PACIFIC BIOSCIENCES CALIF IN	COM	69404D108	23,274,760	147,993	0.64	194,344	-36.82	0.0048
2023-11-14	2023-09-30	13F	PACIFIC BIOSCIENCES CALIF IN	COM	69404D108	23,274,760	147,993		194,344		0.0009
2023-08-14	2023-06-30	13F	PACIFIC BIOSCIENCES CALIF IN	COM	69404D108	23,126,767	851,077	3.82	307,586	19.24	0.0073
2023-07-14	2023-03-31	13F/A-1	PACIFIC BIOSCIENCES CALIF IN	COM	69404D108	22,275,690	1,996,655	9.85	257,952	55.50	0.0066
2023-05-15	2023-03-31	13F	PACIFIC BIOSCIENCES CALIF IN	COM	69404D108	22,275,690	1,996,655		257,952		0.0066
2023-02-10	2022-12-31	13F	PACIFIC BIOSCIENCES CALIF IN	COM	69404D108	20,279,035	616,969	3.14	165,883	45.33	0.0045
2022-11-14	2022-09-30	13F	PACIFIC BIOSCIENCES CALIF IN	COM	69404D108	19,662,066	-1,579,252	-7.43	114,138	21.57	0.0034
2022-08-12	2022-06-30	13F	PACIFIC BIOSCIENCES CALIF IN	COM	69404D108	21,241,318	1,296,226	6.50	93,887	-48.27	0.0026
2022-05-13	2022-03-31	13F	PACIFIC BIOSCIENCES CALIF IN	COM	69404D108	19,945,092	90,216	0.45	181,499	-55.32	0.0043
2022-02-14	2021-12-31	13F	PACIFIC BIOSCIENCES CALIF IN	COM	69404D108	19,854,876	1,858,227	10.33	406,230	-11.65	0.0092
2021-11-12	2021-09-30	13F	PACIFIC BIOSCIENCES CALIF IN	COM	69404D108	17,996,649	-200,255	-1.10	459,814	-27.74	0.0114
2021-08-13	2021-06-30	13F	PACIFIC BIOSCIENCES CALIF IN	COM	69404D108	18,196,904	430,821	2.42	636,346	7.53	0.0158
2021-05-14	2021-03-31	13F	PACIFIC BIOSCIENCES CALIF IN	COM	69404D108	17,766,083	3,445,784	24.06	591,788	59.31	0.0160
2021-02-12	2020-12-31	13F	PACIFIC BIOSCIENCES CALIF IN	COM	69404D108	14,320,299	3,950,323	38.09	371,468	262.93	0.0108
2020-11-16	2020-09-30	13F	PACIFIC BIOSCIENCES CALIF IN	COM	69404D108	10,369,976	2,391,500	29.97	102,352	271.84	0.0034
2020-08-14	2020-06-30	13F	PACIFIC BIOSCIENCES CALIF IN	COM	69404D108	7,978,476	511,325	6.85	27,526	20.47	0.0010
2020-05-15	2020-03-31	13F	PACIFIC BIOSCIENCES CALIF IN	COM	69404D108	7,467,151	-409,334	-5.20	22,848	-43.56	0.0010
2020-02-14	2019-12-31	13F	PACIFIC BIOSCIENCES CALIF IN	COM	69404D108	7,876,485	75,461	0.97	40,485	0.58	0.0014
2019-11-14	2019-09-30	13F	PACIFIC BIOSCIENCES CALIF IN	COM	69404D108	7,801,024	134,495	1.75	40,253	-13.21	0.0015
2019-08-14	2019-06-30	13F	PACIFIC BIOSCIENCES CALIF	COM	69404D108	7,666,529	55,322	0.73	46,382	-15.71	0.0017
2019-05-15	2019-03-31	13F	PACIFIC BIOSCIENCES CALIF IN	COM	69404D108	7,611,207	154,082	2.07	55,028	-0.28	0.0022
2019-02-14	2018-12-31	13F	PACIFIC BIOSCIENCES CALIF	COM	69404D108	7,457,125	1,145,279	18.14	55,182	61.60	0.0025
2018-12-13	2018-09-30	13F/A-2	PACIFIC BIOSCIENCES CALIF IN	COM	69404D108	6,311,846	377,272	6.36	34,148	62.09	0.0013
2018-11-23	2018-09-30	13F/A-1	PACIFIC BIOSCIENCES CALIF IN	COM	69404D108	6,311,846	0		34,148		0.0013
2018-11-14	2018-09-30	13F	PACIFIC BIOSCIENCES CALIF IN	COM	69404D108	6,311,846	377,272		34,148
2018-08-14	2018-06-30	13F	PACIFIC BIOSCIENCES CALIF IN	COM	69404D108	5,934,574	724,706	13.91	21,067	97.28	0.0009
2018-05-15	2018-03-31	13F	PACIFIC BIOSCIENCES CALIF IN	COM	69404D108	5,209,868	328,547	6.73	10,679	-17.13	0.0005
2018-02-14	2017-12-31	13F	PACIFIC BIOSCIENCES CALIF IN	COM	69404D108	4,881,321	351,297	7.75	12,886	-45.82	0.0006
2017-11-14	2017-09-30	13F	PACIFIC BIOSCIENCES CALIF IN	COM	69404D108	4,530,024	600,724	15.29	23,782	70.02	0.0011
2017-08-24	2017-06-30	13F/A-1	PACIFIC BIOSCIENCES CALIF IN	COM	69404D108	3,929,300	283,216	7.77	13,988	-25.79	0.0007
2017-08-11	2017-06-30	13F	PACIFIC BIOSCIENCES CALIF IN	COM	69404D108	3,929,300	283,216		13,988
2017-05-12	2017-03-31	13F	PACIFIC BIOSCIENCES CALIF IN	COM	69404D108	3,646,084	424,632	13.18	18,850	53.99	0.0010
2017-02-14	2016-12-31	13F	PACIFIC BIOSCIENCES CALIF IN	COM	69404D108	3,221,452	73,304	2.33	12,241	-56.60	0.0007
2016-11-14	2016-09-30	13F	PACIFIC BIOSCIENCES CALIF IN	COM	69404D108	3,148,148	225,702	7.72	28,207	37.20	0.0017
2016-08-10	2016-06-30	13F	PACIFIC BIOSCIENCES CALIF IN	COM	69404D108	2,922,446	388,950	15.35	20,559	-4.53	0.0013
2016-05-13	2016-03-31	13F	PACIFIC BIOSCIENCES CALIF IN	COM	69404D108	2,533,496	205,899	8.85	21,535	-29.54	0.0014
2016-02-08	2015-12-31	13F	PACIFIC BIOSCIENCES CALIF IN	COM	69404D108	2,327,597	287,529	14.09	30,562	309.35	0.0021
2015-11-12	2015-09-30	13F/A-1	PACIFIC BIOSCIENCES CALIF IN	COM	69404D108	2,040,068	125,397	6.55	7,466	-32.31	0.0003
2015-11-12	2015-09-30	13F/A-1	PACIFIC BIOSCIENCES CALIF IN	COM	69404D108	2,040,068	125,397		7,466		0.0003
2015-08-13	2015-06-30	13F	PACIFIC BIOSCIENCES CALIF IN	COM	69404D108	1,914,671	97,013	5.34	11,029	3.89	0.0007
2015-05-15	2015-03-31	13F/A-1	PACIFIC BIOSCIENCES CALIF IN	COM	69404D108	1,817,658	190,484	11.71	10,616	-16.78	0.0007
2015-05-14	2015-03-31	13F	PACIFIC BIOSCIENCES CALIF IN	COM	69404D108	1,817,658			10,616
2015-02-12	2014-12-31	13F	PACIFIC BIOSCIENCES CALIF IN	COM	69404D108	1,627,174	123,983	8.25	12,757	72.84	0.0009
2014-11-12	2014-09-30	13F	PACIFIC BIOSCIENCES CALIF IN	COM	69404D108	1,503,191	46,758	3.21	7,381	-18.00	0.0006
2014-08-11	2014-06-30	13F	PACIFIC BIOSCIENCES CALIF IN	COM	69404D108	1,456,433	101,567	7.50	9,001	24.17	0.0007
2014-05-13	2014-03-31	13F	PACIFIC BIOSCIENCES CALIF IN	COM	69404D108	1,354,866	352,481	35.16	7,249	38.29	0.0006
2014-02-12	2013-12-31	13F	PACIFIC BIOSCIENCES CALIF IN	COM	69404D108	1,002,385	213,476	27.06	5,242	20.15	0.0005
2013-11-07	2013-09-30	13F	PACIFIC BIOSCIENCES CALIF IN	COM	69404D108	788,909	166,198	26.69	4,363	178.08	0.0004
2013-08-13	2013-06-30	13F	PACIFIC BIOSCIENCES CALIF IN	COM	69404D108	622,711	622,711		1,569		0.0002

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.