Gilead Sciences, Inc.
CH ˙ SWX ˙ US3755581036
SecurityCH:GILD / Gilead Sciences, Inc.
InstitutionContinental Advisors Llc
Latest Disclosed Ownership28,367 shares
Latest Disclosed Value $ 3,953,509
Continental Advisors Llc ownership in GILD / Gilead Sciences, Inc.

On May 15, 2026 - Continental Advisors Llc filed a 13F-HR form disclosing ownership of 28,367 shares of Gilead Sciences, Inc. (CH:GILD) valued at $3,953,509 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 12, 2026 disclosing 32,867 shares of Gilead Sciences, Inc.. This represents a change in shares of -13.69% during the quarter.

Continental Advisors Llc has a history of taking positions in derivatives of the underlying security (GILD) in the form of stock options. The firm currently holds call options representing 0 of underlying shares valued at $0 USD and put 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.

CH:GILD / Gilead Sciences, 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)
2026-05-15 2026-03-31 13F GILEAD SCIENCES COM 375558103 28,367 -4,500 -13.69 3,954 -2.01 2.0176
2026-02-12 2025-12-31 13F GILEAD SCIENCES COM 375558103 32,867 -1,500 -4.36 4,034 5.77 1.7037
2025-11-03 2025-09-30 13F GILEAD SCIENCES COM 375558103 34,367 -1,500 -4.18 3,815 -4.07 1.6509
2025-08-19 2025-06-30 13F GILEAD SCIENCES COM 375558103 35,867 -9,000 -20.06 3,977 -20.91 1.8629
2025-05-16 2025-03-31 13F GILEAD SCIENCES COM 375558103 44,867 -11,500 -20.40 5,027 -3.44 2.8126
2025-02-14 2024-12-31 13F GILEAD SCIENCES COM 375558103 56,367 -4,000 -6.63 5,207 2.87 2.3971
2024-11-14 2024-09-30 13F GILEAD SCIENCES COM 375558103 60,367 -15,000 -19.90 5,061 -2.11 2.4405
2024-08-14 2024-06-30 13F GILEAD SCIENCES COM 375558103 75,367 11,464 17.94 5,171 10.47 2.2708
2024-05-15 2024-03-31 13F GILEAD SCIENCES COM 375558103 63,903 -11,000 -14.69 4,681 -22.86 1.8911
2024-02-14 2023-12-31 13F GILEAD SCIENCES COM 375558103 74,903 -7,000 -8.55 6,068 -1.14 2.3676
2023-11-14 2023-09-30 13F GILEAD SCIENCES COM 375558103 81,903 0 0.00 6,138 -2.77 3.2696
2023-08-14 2023-06-30 13F GILEAD SCIENCES COM 375558103 81,903 -16,500 -16.77 6,312 -22.68 2.8523
2023-05-15 2023-03-31 13F GILEAD SCIENCES COM 375558103 98,403 25,000 34.06 8,164 29.57 4.3591
2023-02-14 2022-12-31 13F GILEAD SCIENCES COM 375558103 73,403 -10,534 -12.55 6,302 21.69 3.2976
2022-11-14 2022-09-30 13F GILEAD SCIENCES COM 375558103 83,937 -4,000 -4.55 5,178 -4.73 3.0493
2022-08-15 2022-06-30 13F GILEAD SCIENCES COM 375558103 87,937 0 0.00 5,435 3.96 3.2772
2022-05-16 2022-03-31 13F GILEAD SCIENCES COM 375558103 87,937 3,000 3.53 5,228 -15.23 2.5784
2022-02-14 2021-12-31 13F GILEAD SCIENCES COM 375558103 84,937 -15,000 -15.01 6,167 -11.66 2.5968
2021-11-15 2021-09-30 13F GILEAD SCIENCES COM 375558103 99,937 -24,000 -19.36 6,981 -18.20 2.9611
2021-08-16 2021-06-30 13F GILEAD SCIENCES COM 375558103 123,937 -3,000 -2.36 8,534 4.02 3.9324
2021-05-17 2021-03-31 13F GILEAD SCIENCES COM 375558103 126,937 37,500 41.93 8,204 57.44 3.8024
2021-02-16 2020-12-31 13F GILEAD SCIENCES COM 375558103 89,437 29,000 47.98 5,211 36.45 2.3799
2020-11-16 2020-09-30 13F GILEAD SCIENCES COM 375558103 60,437 18,000 42.42 3,819 16.97 2.0226
2020-08-14 2020-06-30 13F GILEAD SCIENCES COM 375558103 42,437 5,000 13.36 3,265 16.65 1.7468
2020-05-08 2020-03-31 13F GILEAD SCIENCES COM 375558103 37,437 10,000 36.45 2,799 56.98 2.0824
2020-02-10 2019-12-31 13F GILEAD SCIENCES COM 375558103 27,437 -3,391 -11.00 1,783 -8.75 0.8613
2019-10-28 2019-09-30 13F GILEAD SCIENCES COM 375558103 30,828 0 0.00 1,954 -6.19 1.1548
2019-08-13 2019-06-30 13F GILEAD SCIENCES COM 375558103 30,828 0 0.00 2,083 3.94 1.1758
2019-05-14 2019-03-31 13F GILEAD SCIENCES COM 375558103 30,828 -26,872 -46.57 2,004 -44.47 0.9317
2019-02-14 2018-12-31 13F GILEAD SCIENCES COM 375558103 57,700 0 0.00 3,609 -18.99 1.1022
2018-11-14 2018-09-30 13F GILEAD SCIENCES COM 375558103 57,700 -9,700 -14.39 4,455 -6.70 0.9732
2018-08-13 2018-06-30 13F GILEAD SCIENCES COM 375558103 67,400 14,900 28.38 4,775 20.64 1.1900
2018-05-14 2018-03-31 13F GILEAD SCIENCES COM 375558103 52,500 0 0.00 3,958 5.24 1.0047
2018-02-13 2017-12-31 13F GILEAD SCIENCES COM 375558103 52,500 0 0.00 3,761 -11.59 0.8127
2017-11-14 2017-09-30 13F GILEAD SCIENCES COM 375558103 52,500 -18,200 -25.74 4,254 -14.99 0.9732
2017-08-14 2017-06-30 13F GILEAD SCIENCES COM 375558103 70,700 -6,500 -8.42 5,004 -4.56 1.1297
2017-05-15 2017-03-31 13F GILEAD SCIENCES COM 375558103 77,200 33,500 76.66 5,243 67.56 1.1730
2017-02-14 2016-12-31 13F GILEAD SCIENCES COM 375558103 43,700 6,700 18.11 3,129 6.90 0.8502
2016-11-14 2016-09-30 13F GILEAD SCIENCES COM 375558103 37,000 37,000 2,927 0.8176
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
(%)
2025-02-14 2024-12-31 13F GILEAD SCIENCES COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2024-11-14 2024-09-30 13F GILEAD SCIENCES COM Call 25,000 -50.79 2,096 -39.86 n/a n/a n/a
2024-08-14 2024-06-30 13F GILEAD SCIENCES COM Call 50,800 130.91 3,485 116.33 n/a n/a n/a
2024-05-15 2024-03-31 13F GILEAD SCIENCES COM Call 22,000 1,612 n/a n/a n/a
2023-05-15 2023-03-31 13F GILEAD SCIENCES COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2023-02-14 2022-12-31 13F GILEAD SCIENCES COM Call 30,000 -33.33 2,576 -7.24 n/a n/a n/a
2022-11-14 2022-09-30 13F GILEAD SCIENCES COM Call 45,000 -18.18 2,776 -18.35 n/a n/a n/a
2022-08-15 2022-06-30 13F GILEAD SCIENCES COM Call 55,000 -31.25 3,400 -28.51 n/a n/a n/a
2022-05-16 2022-03-31 13F GILEAD SCIENCES COM Call 80,000 60.00 4,756 30.98 n/a n/a n/a
2022-02-14 2021-12-31 13F GILEAD SCIENCES COM Call 50,000 0.00 3,631 3.95 n/a n/a n/a
2021-11-15 2021-09-30 13F GILEAD SCIENCES COM Call 50,000 3,493 n/a n/a n/a
2021-08-16 2021-06-30 13F GILEAD SCIENCES COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2021-05-17 2021-03-31 13F GILEAD SCIENCES COM Call 10,000 -75.00 646 -72.27 n/a n/a n/a
2021-02-16 2020-12-31 13F GILEAD SCIENCES COM Call 40,000 53.85 2,330 41.81 n/a n/a n/a
2020-11-16 2020-09-30 13F GILEAD SCIENCES COM Call 26,000 160.00 1,643 113.65 n/a n/a n/a
2020-08-14 2020-06-30 13F GILEAD SCIENCES COM Call 10,000 769 n/a n/a n/a
2019-02-14 2018-12-31 13F GILEAD SCIENCES COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2018-11-14 2018-09-30 13F GILEAD SCIENCES COM Call 20,000 -39.39 1,544 -33.96 n/a n/a n/a
2018-08-13 2018-06-30 13F GILEAD SCIENCES COM Call 33,000 153.85 2,338 138.57 n/a n/a n/a
2018-05-14 2018-03-31 13F GILEAD SCIENCES COM Call 13,000 -56.67 980 -54.40 n/a n/a n/a
2018-02-13 2017-12-31 13F GILEAD SCIENCES COM Call 30,000 -39.52 2,149 -46.53 n/a n/a n/a
2017-11-14 2017-09-30 13F GILEAD SCIENCES COM Call 49,600 -56.87 4,019 -50.63 n/a n/a n/a
2017-08-14 2017-06-30 13F GILEAD SCIENCES COM Call 115,000 -32.35 8,140 -29.50 n/a n/a n/a
2017-05-15 2017-03-31 13F GILEAD SCIENCES COM Call 170,000 88.89 11,546 79.15 n/a n/a n/a
2017-02-14 2016-12-31 13F GILEAD SCIENCES COM Call 90,000 1,700.00 6,445 1,527.53 n/a n/a n/a
2016-11-14 2016-09-30 13F GILEAD SCIENCES COM Call 5,000 396 n/a n/a n/a
Disclosed Put 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
(%)
2023-05-15 2023-03-31 13F GILEAD SCIENCES COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2023-02-14 2022-12-31 13F GILEAD SCIENCES COM Put 20,000 1,717 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.