Gilead Sciences, Inc.
CH ˙ SWX ˙ US3755581036
SecurityCH:GILD / Gilead Sciences, Inc.
InstitutionOmniStar Financial Group, Inc.
Latest Disclosed Ownership24,319 shares
Latest Disclosed Value $ 3,388,461
OmniStar Financial Group, Inc. ownership in GILD / Gilead Sciences, Inc.

On May 15, 2026 - OmniStar Financial Group, Inc. filed a 13F-HR form disclosing ownership of 24,319 shares of Gilead Sciences, Inc. (CH:GILD) valued at $3,388,461 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 33,852 shares of Gilead Sciences, Inc.. This represents a change in shares of -28.16% during the quarter.

OmniStar Financial Group, 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 .

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 24,319 -9,533 -28.16 3,388 -18.46 1.7571
2026-02-17 2025-12-31 13F GILEAD SCIENCES COM 375558103 33,852 2,779 8.94 4,155 20.47 2.4354
2025-11-17 2025-09-30 13F GILEAD SCIENCES COM 375558103 31,073 16,117 107.76 3,449 108.02 2.0892
2025-08-08 2025-06-30 13F GILEAD SCIENCES COM 375558103 14,956 2,697 22.00 1,658 20.14 1.2410
2025-05-15 2025-03-31 13F GILEAD SCIENCES COM 375558103 12,259 -5,525 -31.07 1,380 -16.01 1.0879
2025-02-14 2024-12-31 13F GILEAD SCIENCES COM 375558103 17,784 7,877 79.51 1,643 97.48 1.3210
2024-10-17 2024-09-30 13F GILEAD SCIENCES COM 375558103 9,907 -149 -1.48 833 20.75 0.6240
2024-07-26 2024-06-30 13F GILEAD SCIENCES COM 375558103 10,056 873 9.51 690 2.53 0.6245
2024-04-23 2024-03-31 13F GILEAD SCIENCES COM 375558103 9,183 -1,023 -10.02 673 -18.64 0.6160
2024-01-17 2023-12-31 13F GILEAD SCIENCES COM 375558103 10,206 -6,826 -40.08 827 -35.42 1.0378
2023-11-07 2023-09-30 13F GILEAD SCIENCES COM 375558103 17,032 -8 -0.05 1,279 -2.59 1.5183
2023-07-24 2023-06-30 13F GILEAD SCIENCES COM 375558103 17,040 -93 -0.54 1,313 -7.60 1.5437
2023-05-01 2023-03-31 13F GILEAD SCIENCES COM 375558103 17,133 1,816 11.86 1,421 8.06 1.8040
2023-01-20 2022-12-31 13F GILEAD SCIENCES COM 375558103 15,317 -8,259 -35.03 1,315 -9.56 1.4942
2022-11-14 2022-09-30 13F GILEAD SCIENCES INC COM USD0.001 COM 375558103 23,576 3,192 15.66 1,454 15.49 1.7326
2022-08-03 2022-06-30 13F GILEAD SCIENCES INC COM USD0.001 COM 375558103 20,384 274 1.36 1,259 5.36 1.3950
2022-05-05 2022-03-31 13F GILEAD SCIENCES INC COM USD0.001 COM 375558103 20,110 6,698 49.94 1,195 22.82 1.1872
2022-02-11 2021-12-31 13F GILEAD SCIENCES INC COM USD0.001 COM 375558103 13,412 1,663 14.15 973 18.66 0.9953
2021-11-12 2021-09-30 13F GILEAD SCIENCES INC COM USD0.001 COM 375558103 11,749 11,749 820 0.9691
2021-08-17 2021-06-30 13F GILEAD SCIENCES COM 375558103 0 -11,554 -100.00 0 -100.00
2021-05-13 2021-03-31 13F GILEAD SCIENCES COM 375558103 11,554 -5,726 -33.14 747 -25.82 0.9502
2021-02-09 2020-12-31 13F GILEAD SCIENCES COM 375558103 17,280 -1,198 -6.48 1,007 -13.78 0.7058
2020-10-22 2020-09-30 13F GILEAD SCIENCES COM 375558103 18,478 8,849 91.90 1,168 57.62 0.8810
2020-07-06 2020-06-30 13F GILEAD SCIENCES COM 375558103 9,629 1,642 20.56 741 24.12 0.6123
2020-04-27 2020-03-31 13F GILEAD SCIENCES COM 375558103 7,987 -269 -3.26 597 11.17 0.5873
2020-01-13 2019-12-31 13F GILEAD SCIENCES COM 375558103 8,256 -820 -9.03 537 -6.61 0.4527
2019-10-11 2019-09-30 13F GILEAD SCIENCES COM 375558103 9,076 453 5.25 575 -1.37 0.5029
2019-07-30 2019-06-30 13F GILEAD SCIENCES COM 375558103 8,623 1,316 18.01 583 22.74 0.5233
2019-04-12 2019-03-31 13F GILEAD SCIENCES COM 375558103 7,307 1,252 20.68 475 25.33 0.4178
2019-02-12 2018-12-31 13F GILEAD SCIENCES COM 375558103 6,055 -1,095 -15.31 379 -31.34 0.3867
2018-11-16 2018-09-30 13F GILEAD SCIENCES COM 375558103 7,150 1,389 24.11 552 35.29 0.4209
2018-08-14 2018-06-30 13F GILEAD SCIENCES COM 375558103 5,761 -1 -0.02 408 -5.99 0.3884
2018-05-11 2018-03-31 13F GILEAD SCIENCES COM 375558103 5,762 -659 -10.26 434 -5.65 0.4147
2018-03-13 2017-12-31 13F GILEAD SCIENCES COM 375558103 6,421 6,421 460 0.4214
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
(%)
2021-11-12 2021-09-30 13F GILEAD SCIENCES INC COM USD0.001 COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2021-08-17 2021-06-30 13F GILEAD SCIENCES INC COM USD0.001 COM Call 11,697 805 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.