Gilead Sciences, Inc.
CH ˙ SWX ˙ US3755581036
SecurityCH:GILD / Gilead Sciences, Inc.
InstitutionGreat Valley Advisor Group, Inc.
Latest Disclosed Ownership5,417 shares
Latest Disclosed Value $ 754,579
Great Valley Advisor Group, Inc. reports 4.78% increase in ownership of GILD / Gilead Sciences, Inc.

On May 11, 2026 - Great Valley Advisor Group, Inc. filed a 13F-HR form disclosing ownership of 5,417 shares of Gilead Sciences, Inc. (CH:GILD) valued at $754,579 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 12, 2026 disclosing 5,170 shares of Gilead Sciences, Inc.. This represents a change in shares of 4.78% during the quarter.

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 Avg Price
Paid (Est)		 Reported
Shares		 ΔShares ΔShares
(%)		 Reported
Value
(x1000)		 ΔValue
(%)		 Alloc
(%)		 ΔAlloc ΔAlloc (%) Cost Basis
(x1000)		 Unrealized
Gain/Loss
(x1000)
2026-05-11 2026-03-31 13F GILEAD SCIENCES COM 375558103 5,417 247 4.78 755 18.93 0.0137
2026-02-12 2025-12-31 13F GILEAD SCIENCES COM 375558103 5,170 271 5.53 635 16.76 0.0122
2025-11-14 2025-09-30 13F GILEAD SCIENCES COM 375558103 4,899 -297 -5.72 543 -5.57 0.0109
2025-08-14 2025-06-30 13F GILEAD SCIENCES COM 375558103 5,196 -797 -13.30 576 -14.31 0.0128
2025-05-08 2025-03-31 13F GILEAD SCIENCES COM 375558103 5,993 39 0.66 672 22.22 0.0145
2025-02-24 2024-12-31 13F GILEAD SCIENCES COM 375558103 5,954 391 7.03 550 17.81 0.0123
2024-11-12 2024-09-30 13F GILEAD SCIENCES COM 375558103 5,563 -431 -7.19 467 13.38 0.0115
2024-07-16 2024-06-30 13F GILEAD SCIENCES COM 375558103 5,994 -1,266 -17.44 411 -22.60 0.0115
2024-05-06 2024-03-31 13F GILEAD SCIENCES COM 375558103 7,260 -435 -5.65 532 -14.77 0.0162
2024-02-06 2023-12-31 13F GILEAD SCIENCES COM 375558103 7,695 -4,129 -34.92 623 -29.68 0.0219
2023-11-07 2023-09-30 13F GILEAD SCIENCES COM 375558103 11,824 1,959 19.86 886 16.58 0.0367
2023-08-10 2023-06-30 13F GILEAD SCIENCES COM 375558103 9,865 238 2.47 760 -4.76 0.0319
2023-05-03 2023-03-31 13F GILEAD SCIENCES COM 375558103 9,627 2,633 37.65 799 33.00 0.0373
2023-02-01 2022-12-31 13F GILEAD SCIENCES COM 375558103 6,994 -208 -2.89 600 35.14 0.0307
2022-10-21 2022-09-30 13F GILEAD SCIENCES COM 375558103 7,202 -179 -2.43 444 -2.63 0.0249
2022-07-19 2022-06-30 13F GILEAD SCIENCES COM 375558103 7,381 -3,459 -31.91 456 -29.63 0.0251
2022-04-20 2022-03-31 13F GILEAD SCIENCES COM 375558103 10,840 -359 -3.21 648 -20.10 0.0378
2022-02-10 2021-12-31 13F GILEAD SCIENCES COM 375558103 11,199 12 0.11 811 3.84 0.0501
2021-10-14 2021-09-30 13F GILEAD SCIENCES COM 375558103 11,187 -613 -5.19 781 -3.58 0.0538
2021-07-27 2021-06-30 13F GILEAD SCIENCES COM 375558103 11,800 15 0.13 810 6.30 0.0599
2021-04-20 2021-03-31 13F GILEAD SCIENCES COM 375558103 11,785 -2,617 -18.17 762 -9.18 0.0733
2021-01-29 2020-12-31 13F GILEAD SCIENCES COM 375558103 14,402 -42,790 -74.82 839 -76.78 0.0868
2020-10-21 2020-09-30 13F GILEAD SCIENCES COM 375558103 57,192 497 0.88 3,614 -17.15 0.4436
2020-07-31 2020-06-30 13F GILEAD SCIENCES COM 375558103 56,695 11,137 24.45 4,362 28.07 0.7139
2020-05-15 2020-03-31 13F GILEAD SCIENCES COM 375558103 45,558 32,070 237.77 3,406 288.37 0.9022
2020-02-10 2019-12-31 13F GILEAD SCIENCES COM 375558103 13,488 -731 -5.14 877 -2.66 0.1953
2019-10-25 2019-09-30 13F GILEAD SCIENCES COM 375558103 14,219 1,546 12.20 901 5.26 0.2175
2019-07-30 2019-06-30 13F GILEAD SCIENCES COM 375558103 12,673 502 4.12 856 8.22 0.2151
2019-04-26 2019-03-31 13F GILEAD SCIENCES COM 375558103 12,171 -4,056 -25.00 791 -22.07 0.2517
2019-04-11 2018-12-31 13F GILEAD SCIENCES COM 375558103 16,227 16,227 1,015 0.3791
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.