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

SecurityPACB / Pacific Biosciences of California, Inc.
InstitutionIFP Advisors, Inc
Latest Disclosed Ownership34,706 shares
Latest Disclosed Value $ 45,812
IFP Advisors, Inc ownership in PACB / Pacific Biosciences of California, Inc.

On April 13, 2026 - IFP Advisors, Inc filed a 13F-HR form disclosing ownership of 34,706 shares of Pacific Biosciences of California, Inc. (US:PACB) valued at $45,812 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 6, 2026 disclosing 52,787 shares of Pacific Biosciences of California, Inc.. This represents a change in shares of -34.25% during the quarter. The current value of the position is $56,571 USD.

IFP Advisors, Inc has a history of taking positions in derivatives of the underlying security (PACB) in the form of stock options. The firm currently holds call options representing 0 of underlying shares valued at $0 USD .

Note: prior versions of this page mistakenly stated that the share values represented the number of options, not the number of underlying shares. For more information on the data backing these reports, please see the SEC document Frequently Asked Questions About Form 13F.

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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Institutional Put/Call Ratios
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In addition to reporting standard equity and debt issues, institutions with more than 100MM assets under management must also disclose their put and call option holdings. Since put options generally indicate negative sentiment, and call options indicate positive sentiment, we can get a sense of the overall institutional sentiment by plotting the ratio of puts to calls. The chart to the right plots the historical put/call ratio for this instrument.

Using Put/Call Ratio as an indicator of investor sentiment overcomes one of the key deficiencies of using total institutional ownership, which is that a significant amount of assets under management are invested passively to track indices. Passively-managed funds do not typically buy options, so the put/call ratio indicator more closely tracks the sentiment of actively-managed funds.

PACB / Pacific Biosciences of California, Inc. Historical Put/Call Ratio
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)
2026-04-13 2026-03-31 13F PACIFIC BIOSCIENCES CALIF IN cs 69404D108 34,706 -18,081 -34.25 46 -54.08 0.0009
2026-02-06 2025-12-31 13F PACIFIC BIOSCIENCES CALIF IN cs 69404D108 52,787 -42,825 -44.79 99 -19.67 0.0022
2026-02-06 2025-09-30 13F/A-1 PACIFIC BIOSCIENCES CALIF INCOM cs 69404D108 95,612 -52,718 -35.54 122 -33.33 0.0032
2025-12-02 2025-09-30 13F PACIFIC BIOSCIENCES CALIF INCOM cs 69404D108 95,612 -52,718 122 0.0032
2025-07-24 2025-06-30 13F PACIFIC BIOSCIENCES CALIF IN cs 69404D108 148,330 -45,950 -23.65 184 -20.09 0.0052
2025-05-05 2025-03-31 13F PACIFIC BIOSCIENCES CALIF IN cs 69404D108 194,280 -7,305 -3.62 229 -37.77 0.0071
2025-02-04 2024-12-31 13F PACIFIC BIOSCIENCES CALIF IN cs 69404D108 201,585 38,984 23.98 369 33.33 0.0121
2025-02-04 2024-09-30 13F PACIFIC BIOSCIENCES CALIF IN cs 69404D108 162,601 161,601 16,160.10 276 27,500.00 0.0100
2024-07-30 2024-06-30 13F PACIFIC BIOSCIENCES CALIF IN cs 69404D108 1,000 0 0.00 1 -66.67 0.0001
2024-07-30 2024-03-31 13F PACIFIC BIOSCIENCES CALIF IN cs 69404D108 1,000 0 0.00 4 -66.67 0.0002
2024-01-09 2023-12-31 13F PACIFIC BIOSCIENCES CALIF IN cs 69404D108 1,000 0 0.00 10 12.50 0.0005
2023-10-12 2023-09-30 13F PACIFIC BIOSCIENCES CALIF IN cs 69404D108 1,000 -250 -20.00 8 -50.00 0.0004
2023-08-14 2023-06-30 13F/A-1 PACIFIC BIOSCIENCES CALIF IN cs 69404D108 1,250 0 0.00 17 433.33 0.0007
2023-08-04 2023-06-30 13F PACIFIC BIOSCIENCES CALIF IN cs 69404D108 1,250 0 3 0.0002
2023-04-18 2023-03-31 13F PACIFIC BIOSCIENCES CALIF IN cs 69404D108 1,250 -1,600 -56.14 3 0.0001
2023-02-07 2022-12-31 13F PACIFIC BIOSCIENCES CALIF IN cs 69404D108 2,850 -300 -9.52 0 -100.00 0.0002
2022-11-08 2022-09-30 13F PACIFIC BIOSCIENCES CALIF IN cs 69404D108 3,150 0 0.00 9 0.00 0.0002
2022-09-06 2022-06-30 13F/A-1 PACIFIC BIOSCIENCES CALIF IN cs 69404D108 3,150 0 0.00 9 0.00 0.0003
2022-09-06 2022-03-31 13F/A-1 PACIFIC BIOSCIENCES CALIF IN cs 69404D108 3,150 0 0.00 9 -85.71 0.0003
2022-08-08 2022-03-31 13F PACIFIC BIOSCIENCES CALIF IN COM Stock 69404D108 3,250 100 10 0.0002
2022-01-12 2021-12-31 13F PACIFIC BIOSCIENCES CALIF IN COM Stock 69404D108 3,150 -450 -12.50 63 -31.52 0.0012
2021-10-06 2021-09-30 13F PACIFIC BIOSCIENCES CALIF IN COM Stock 69404D108 3,600 50 1.41 92 -25.81 0.0018
2021-07-13 2021-06-30 13F PACIFIC BIOSCIENCES CALIF IN COM Stock 69404D108 3,550 500 16.39 124 21.57 0.0026
2021-04-30 2021-03-31 13F PACIFIC BIOSCIENCES CALIF IN COM Stock 69404D108 3,050 -7,950 -72.27 102 -64.34 0.0020
2021-01-25 2020-12-31 13F PACIFIC BIOSCIENCES CALIF IN COM Stock 69404D108 11,000 1,000 10.00 286 188.89 0.0116
2020-10-29 2020-09-30 13F PACIFIC BIOSCIENCES CALIF IN COM Stock 69404D108 10,000 5,000 100.00 99 482.35 0.0059
2020-08-05 2020-06-30 13F PACIFIC BIOSCIENCES CALIF IN COM Stock 69404D108 5,000 -37 -0.73 17 -5.56 0.0013
2020-05-12 2020-03-31 13F PACIFIC BIOSCIENCES CALIF IN COM Stock 69404D108 5,037 5,000 13,513.51 18 5.88 0.0018
2020-01-17 2019-12-31 13F PACIFIC BIOSCIENCES CALIF IN COM Stock 69404D108 37 -200 -84.39 0 -100.00
2019-11-07 2019-09-30 13F PACIFIC BIOSCIENCES CALIF IN COM Stock 69404D108 237 -14,763 -98.42 1 -99.07 0.0001
2019-05-15 2019-03-31 13F PACIFIC BIOSCIENCES CAINC Stock 69404D108 15,000 -8,196 -35.33 108 -36.47 0.0147
2019-06-03 2018-12-31 13F/A-10 PACIFIC BIOSCIENCES CALIF INC COM Stock 69404D108 23,196 -17,693 -43.27 170 -23.08 0.0104
2019-01-23 2018-12-31 13F PACIFIC BIOSCIENCES CALIF INC COM Stock 69404D108 23,196 -17,693 170 0.0104
2019-06-03 2018-09-30 13F/A-9 PACIFIC BIOSCIENCES CALIF INC COM Stock 69404D108 40,889 1,050 2.64 221 56.74 0.0090
2018-10-25 2018-09-30 13F PACIFIC BIOSCIENCES CALIF INC COM Stock 69404D108 40,889 1,050 221 0.0090
2019-06-03 2018-06-30 13F/A-8 PACIFIC BIOSCIENCES CALIF INC COM Stock 69404D108 39,839 -16,945 -29.84 141 -6.00 0.0059
2018-08-07 2018-06-30 13F PACIFIC BIOSCIENCES CALIF INC COM Stock 69404D108 39,839 1,500 141
2019-06-03 2018-03-31 13F/A-7 PACIFIC BIOSCIENCES CALIF INC COM Stock 69404D108 56,784 0 0.00 150 0.00 0.0068
2018-05-09 2018-03-31 13F PACIFIC BIOSCIENCES CALIF INC COM Stock 69404D108 38,339 -18,445 79
2019-06-03 2017-12-31 13F/A-6 PACIFIC BIOSCIENCES CALIF INC COM Stock 69404D108 56,784 -450 -0.79 150 -50.00 0.0068
2018-01-24 2017-12-31 13F PACIFIC BIOSCIENCES CALIF INC COM Stock 69404D108 56,784 -450 150
2017-10-30 2017-09-30 13F PACIFIC BIOSCIENCES CALIF INC COM Stock 69404D108 57,234 -550 -0.95 300 45.63 0.0119
2019-06-03 2017-06-30 13F/A-5 PACIFIC BIOSCIENCES CALIF INC COM Stock 69404D108 57,784 -10,398 -15.25 206 -41.64 0.0087
2017-07-31 2017-06-30 13F PACIFIC BIOSCIENCES CALIF INC COM Stock 69404D108 57,784 -10,398 206
2019-06-03 2017-03-31 13F/A-4 PACIFIC BIOSCIENCES CALIF INC COM Stock 69404D108 68,182 -16,560 -19.54 353 9.63 0.0154
2017-04-26 2017-03-31 13F PACIFIC BIOSCIENCES CALIF INC COM Stock 69404D108 68,182 -16,560 353
2019-06-03 2016-12-31 13F/A-3 PACIFIC BIOSCIENCES CALIF INC COM Stock 69404D108 84,742 -33,705 -28.46 322 -69.65 0.0155
2017-02-14 2016-12-31 13F PACIFIC BIOSCIENCES CALIF INC COM Stock 69404D108 84,742 -33,705 322
2016-11-04 2016-09-30 13F PACIFIC BIOSCIENCES CALIF INC COM Stock 69404D108 118,447 -850 -0.71 1,061 26.46 0.0552
2019-06-03 2016-06-30 13F/A-2 PACIFIC BIOSCIENCES CALIF INC COM Stock 69404D108 119,297 104,297 695.31 839 676.85 0.0468
2016-08-22 2016-06-30 13F PACIFIC BIOSCIENCES CALIF INC COM Stock 69404D108 119,297 104,297 839
2019-06-03 2016-03-31 13F/A-1 PACIFIC BIOSCIENCES CAINC Stock 69404D108 15,000 -37,236 -71.28 108 -84.26 0.0147
2016-05-02 2016-03-31 13F PACIFIC BIOSCIENCES CALIF INC COM Stock 69404D108 66,575 14,339 566
2016-02-11 2015-12-31 13F PACIFIC BIOSCIENCES CALIF INC COM Stock 69404D108 52,236 52,236 686 0.0460
Disclosed Call Options
File
Date
Effective
Date
Form Security Class ID Opt Avg Share
Price
Shares ΔShares
(%)
Value
(x1000)
ΔValue
(%)
Prior Allocation
(%)
Allocation
(%)
ΔAllocation
(%)
Cost Basis
(x1000)
Profit
(x1000)
Return
(%)
2019-06-03 2017-03-31 13F/A PACIFIC BIOSCIENCES CALIF INC COM Stock Call 0 -100.00 0 -100.00 n/a n/a n/a
2019-06-03 2016-12-31 13F/A PACIFIC BIOSCIENCES CALIF INC COM Stock Call 1,000 -92.91 4 -96.83 n/a n/a n/a
2017-02-14 2016-12-31 13F PACIFIC BIOSCIENCES CALIF INC COM Stock Call 1,000 4 n/a n/a n/a
2016-11-04 2016-09-30 13F PACIFIC BIOSCIENCES CALIF INC COM Stock Call 14,100 281.08 126 384.62 n/a n/a n/a
2019-06-03 2016-06-30 13F/A PACIFIC BIOSCIENCES CALIF INC COM Stock Call 3,700 -73.76 26 -79.37 n/a n/a n/a
2016-08-22 2016-06-30 13F PACIFIC BIOSCIENCES CALIF INC COM Stock Call 3,700 26 n/a n/a n/a
2019-06-03 2016-03-31 13F/A PACIFIC BIOSCIENCES CALIF INC COM Stock Call 0 -100.00 0 -100.00 n/a n/a n/a
2016-02-11 2015-12-31 13F PACIFIC BIOSCIENCES CALIF INC COM Stock Call 4,800 63 n/a n/a n/a
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.