Gilead Sciences, Inc.
CH ˙ SWX ˙ US3755581036
SecurityCH:GILD / Gilead Sciences, Inc.
InstitutionKovack Advisors, Inc.
Latest Disclosed Ownership17,794 shares
Latest Disclosed Value $ 2,483,215
Kovack Advisors, Inc. ownership in GILD / Gilead Sciences, Inc.

On May 12, 2026 - Kovack Advisors, Inc. filed a 13F-HR form disclosing ownership of 17,794 shares of Gilead Sciences, Inc. (CH:GILD) valued at $2,483,215 USD as of March 31, 2026. The entity filed a previous 13F-HR/A on February 17, 2026 disclosing 25,421 shares of Gilead Sciences, Inc.. This represents a change in shares of -30.00% during the quarter.

Kovack Advisors, Inc. 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)
2026-05-12 2026-03-31 13F GILEAD SCIENCES COM 375558103 17,794 -7,627 -30.00 2,483 -20.42 0.1325
2026-02-17 2025-12-31 13F/A-1 GILEAD SCIENCES COM 375558103 25,421 21,643 572.87 3,120 644.63 0.1450
2026-02-12 2025-12-31 13F GILEAD SCIENCES COM 375558103 25,422 21,644 575
2025-11-10 2025-09-30 13F GILEAD SCIENCES COM 375558103 3,778 -8 -0.21 419 0.00 0.0395
2025-08-04 2025-06-30 13F GILEAD SCIENCES COM 375558103 3,786 -329 -8.00 420 -9.11 0.0411
2025-05-06 2025-03-31 13F GILEAD SCIENCES COM 375558103 4,115 -3,680 -47.21 461 -35.97 0.0488
2025-02-05 2024-12-31 13F GILEAD SCIENCES COM 375558103 7,795 -1,318 -14.46 720 -5.76 0.0707
2024-11-05 2024-09-30 13F GILEAD SCIENCES COM 375558103 9,113 -1,216 -11.77 764 7.91 0.0809
2024-08-05 2024-06-30 13F GILEAD SCIENCES COM 375558103 10,329 -5 -0.05 709 -6.35 0.0780
2024-04-19 2024-03-31 13F GILEAD SCIENCES COM 375558103 10,334 -161 -1.53 757 -11.06 0.0917
2024-02-02 2023-12-31 13F GILEAD SCIENCES COM 375558103 10,495 685 6.98 850 15.65 0.1010
2023-10-19 2023-09-30 13F GILEAD SCIENCES COM 375558103 9,810 -547 -5.28 735 -7.89 0.1025
2023-07-21 2023-06-30 13F GILEAD SCIENCES COM 375558103 10,357 -420 -3.90 798 -10.74 0.1023
2023-04-21 2023-03-31 13F GILEAD SCIENCES COM 375558103 10,777 35 0.33 894 -3.04 0.1219
2023-02-22 2022-12-31 13F GILEAD SCIENCES ORD ORD 375558103 10,742 -510 -4.53 922 32.85 0.1348
2022-11-14 2022-09-30 13F GILEAD SCIENCES ORD ORD 375558103 11,252 26 0.23 694 0.00 0.1019
2022-08-10 2022-06-30 13F GILEAD SCIENCES ORD ORD 375558103 11,226 1,022 10.02 694 14.52 0.0916
2022-05-16 2022-03-31 13F GILEAD SCIENCES ORD ORD 375558103 10,204 -1,607 -13.61 606 -29.37 0.0622
2022-01-18 2021-12-31 13F GILEAD SCIENCES ORD ORD 375558103 11,811 -1,483 -11.16 858 -7.64 0.0829
2021-11-03 2021-09-30 13F GILEAD SCIENCES ORD ORD 375558103 13,294 6,667 100.60 929 103.73 0.1010
2021-07-29 2021-06-30 13F GILEAD SCIENCES ORD ORD 375558103 6,627 -85 -1.27 456 5.07 0.0519
2021-05-04 2021-03-31 13F GILEAD SCIENCES ORD ORD 375558103 6,712 -7,480 -52.71 434 -47.52 0.0564
2021-01-14 2020-12-31 13F GILEAD SCIENCES ORD ORD 375558103 14,192 395 2.86 827 -5.16 0.1190
2020-11-02 2020-09-30 13F GILEAD SCIENCES ORD ORD 375558103 13,797 272 2.01 872 -16.23 0.1552
2020-07-31 2020-06-30 13F GILEAD SCIENCES ORD ORD 375558103 13,525 -2,356 -14.84 1,041 -12.30 0.2027
2020-04-30 2020-03-31 13F GILEAD SCIENCES ORD ORD 375558103 15,881 11,915 300.43 1,187 360.08 0.2741
2020-01-29 2019-12-31 13F GILEAD SCIENCES ORD ORD 375558103 3,966 -1,494 -27.36 258 -25.43 0.0461
2019-10-31 2019-09-30 13F GILEAD SCIENCES ORD ORD 375558103 5,460 236 4.52 346 -1.98 0.0710
2019-08-14 2019-06-30 13F GILEAD SCIENCES INC COM COM 375558103 5,224 -154 -2.86 353 0.86 0.0807
2019-05-03 2019-03-31 13F GILEAD SCIENCES INC COM COM 375558103 5,378 -802 -12.98 350 -9.56 0.0873
2019-02-06 2018-12-31 13F GILEAD SCIENCES INC COM COM 375558103 6,180 -4,572 -42.52 387 -53.37 0.1132
2018-10-09 2018-09-30 13F GILEAD SCIENCES INC COM COM 375558103 10,752 1,377 14.69 830 25.00 0.2140
2018-08-01 2018-06-30 13F GILEAD SCIENCES INC COM COM 375558103 9,375 -8,091 -46.32 664 -62.40 0.1855
2018-05-15 2018-03-31 13F GILEAD SCIENCES INC COM COM 375558103 17,466 -10,151 -36.76 1,766 -10.72 0.4431
2018-05-15 2017-12-31 13F/A-1 GILEAD SCIENCES COM 375558103 27,617 9,839 55.34 1,978 37.36 0.4999
2018-02-01 2017-12-31 13F GILEAD SCIENCES COM 375558103 28,242 2,023
2018-08-02 2017-09-30 13F GILEAD SCIENCES INC COM COM 375558103 17,778 -2,355 -11.70 1,440 1.05 0.4777
2018-08-30 2017-06-30 13F GILEAD SCIENCES INC COM COM 375558103 20,133 5,516 37.74 1,425 43.50 0.4497
2018-09-05 2017-03-31 13F GILEAD SCIENCES INC COM COM 375558103 14,617 -4,142 -22.08 993 -26.06 0.3866
2018-09-10 2016-12-31 13F GILEAD SCIENCES INC COM COM 375558103 18,759 10,912 139.06 1,343 105.04 0.6390
2018-10-01 2016-06-30 13F GILEAD SCIENCES INC COM COM 375558103 7,847 -2,252 -22.30 655 -29.42 0.3476
2018-10-12 2016-03-31 13F GILEAD SCIENCES INC COM COM 375558103 10,099 -2,799 -21.70 928 -28.89 0.5800
2018-10-18 2015-12-31 13F GILEAD SCIENCES INC COM COM 375558103 12,898 2,088 19.32 1,305 23.00 0.8605
2018-10-29 2015-09-30 13F GILEAD SCIENCES COM 375558103 10,810 -700 -6.08 1,061 -21.29 0.7403
2018-11-06 2015-06-30 13F GILEAD SCIENCES INC COM COM 375558103 11,510 3,768 48.67 1,348 77.37 0.9533
2018-11-13 2015-03-31 13F GILEAD SCIENCES INC COM COM 375558103 7,742 -262 -3.27 760 0.80 0.6420
2018-11-19 2014-12-31 13F GILEAD SCIENCES INC COM COM 375558103 8,004 5,443 212.53 754 176.19 0.7785
2018-12-04 2014-09-30 13F GILEAD SCIENCES INC COM COM 375558103 2,561 2,561 273 0.4016
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
(%)
2023-02-22 2022-12-31 13F GILEAD SCIENCES NOV 18, 2022 CALL 70 ORD Call 0 -100.00 0 n/a n/a n/a
2022-11-14 2022-09-30 13F GILEAD SCIENCES NOV 18, 2022 CALL 70 ORD Call 1 0 n/a n/a n/a
2022-08-10 2022-06-30 13F GILEAD SCIENCES JUN 17, 2022 CALL 65 ORD Call 0 -100.00 0 n/a n/a n/a
2022-05-16 2022-03-31 13F GILEAD SCIENCES JUN 17, 2022 CALL 65 ORD Call 1 0.00 0 n/a n/a n/a
2022-01-18 2021-12-31 13F GILEAD SCIENCES MAR 18, 2022 CALL 75 ORD Call 1 0.00 0 n/a n/a n/a
2021-11-03 2021-09-30 13F GILEAD SCIENCES OCT 15, 2021 CALL 75 ORD Call 1 0.00 0 n/a n/a n/a
2021-07-29 2021-06-30 13F GILEAD SCIENCES AUG 20, 2021 CALL 70 ORD Call 1 0.00 0 n/a n/a n/a
2021-05-04 2021-03-31 13F GILEAD SCIENCES MAY 21, 2021 CALL 70 ORD Call 1 0.00 0 n/a n/a n/a
2021-01-14 2020-12-31 13F GILEAD SCIENCES FEB 05, 2021 CALL 60 ORD Call 1 0.00 0 n/a n/a n/a
2020-01-29 2019-12-31 13F GILEAD SCIENCES INC CALL AUG00100000 ORD Call 0 -100.00 0 n/a n/a n/a
2019-10-31 2019-09-30 13F GILEAD SCIENCES INC CALL AUG00100000 ORD Call 3 0.00 0 n/a n/a n/a
2019-08-14 2019-06-30 13F GILEAD SCIENCES INC CALL AUG00100000 COM Call 3 0.00 0 n/a n/a n/a
2019-05-03 2019-03-31 13F GILEAD SCIENCES INC CALL AUG00100000 COM Call 3 0.00 0 n/a n/a n/a
2019-02-06 2018-12-31 13F GILEAD SCIENCES INC CALL AUG00100000 COM Call 3 0.00 0 n/a n/a n/a
2018-10-09 2018-09-30 13F GILEAD SCIENCES INC CALL AUG00100000 COM Call 3 -76.92 0 -100.00 n/a n/a n/a
2018-08-02 2017-09-30 13F GILEAD SCIENCES INC CALL AUG00100000 COM Call 13 333.33 5 n/a n/a n/a
2018-08-30 2017-06-30 13F GILEAD SCIENCES INC CALL AUG00100000 COM Call 3 0.00 0 -100.00 n/a n/a n/a
2018-09-05 2017-03-31 13F GILEAD SCIENCES INC CALL AUG00100000 COM Call 3 0.00 0 n/a n/a n/a
2018-09-10 2016-12-31 13F GILEAD SCIENCES INC CALL AUG00100000 COM Call 3 -25.00 0 n/a n/a n/a
2018-10-01 2016-06-30 13F GILEAD SCIENCES INC CALL AUG00100000 COM Call 4 0.00 0 -100.00 n/a n/a n/a
2018-10-12 2016-03-31 13F GILEAD SCIENCES INC CALL AUG00100000 COM Call 4 -55.56 1 -75.00 n/a n/a n/a
2018-10-18 2015-12-31 13F GILEAD SCIENCES INC CALL JAN00095000 COM Call 9 12.50 4 0.00 n/a n/a n/a
2018-10-29 2015-09-30 13F GILEAD SCIENCES COM Call 8 -33.33 4 -83.33 n/a n/a n/a
2018-11-06 2015-06-30 13F GILEAD SCIENCES INC CALL JAN00105000 COM Call 12 -25.00 24 41.18 n/a n/a n/a
2018-11-13 2015-03-31 13F GILEAD SCIENCES INC CALL JAN00105000 COM Call 16 -30.43 17 -37.04 n/a n/a n/a
2018-11-19 2014-12-31 13F GILEAD SCIENCES INC CALL FEB00100000 COM Call 23 27 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
(%)
2018-05-15 2017-12-31 13F/A GILEAD SCIENCES INC PUT JAN00075000 COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2018-08-02 2017-09-30 13F GILEAD SCIENCES INC PUT JAN00075000 COM Put 10 66.67 2 -50.00 n/a n/a n/a
2018-10-01 2016-06-30 13F GILEAD SCIENCES INC PUT JUL00090000 COM Put 6 200.00 4 300.00 n/a n/a n/a
2018-10-29 2015-09-30 13F GILEAD SCIENCES COM Put 2 1 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.