Gilead Sciences, Inc.
CH ˙ SWX ˙ US3755581036
SecurityCH:GILD / Gilead Sciences, Inc.
InstitutionGrandfield & Dodd, Llc
Latest Disclosed Ownership163,600 shares
Latest Disclosed Value $ 22,800,932
Grandfield & Dodd, Llc reports 4.90% decrease in ownership of GILD / Gilead Sciences, Inc.

On May 7, 2026 - Grandfield & Dodd, Llc filed a 13F-HR form disclosing ownership of 163,600 shares of Gilead Sciences, Inc. (CH:GILD) valued at $22,800,932 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 10, 2026 disclosing 172,025 shares of Gilead Sciences, Inc.. This represents a change in shares of -4.90% 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)
2026-05-07 2026-03-31 13F GILEAD SCIENCES COM 375558103 163,600 -8,425 -4.90 22,801 7.99 1.2874
2026-02-10 2025-12-31 13F GILEAD SCIENCES COM 375558103 172,025 -28,306 -14.13 21,114 -5.05 1.1959
2025-10-30 2025-09-30 13F GILEAD SCIENCES COM 375558103 200,331 -20,655 -9.35 22,237 -9.24 1.2615
2025-08-08 2025-06-30 13F GILEAD SCIENCES COM 375558103 220,986 -60,746 -21.56 24,501 -22.39 1.4348
2025-05-02 2025-03-31 13F GILEAD SCIENCES COM 375558103 281,732 -2,030 -0.72 31,568 20.44 1.9572
2025-02-06 2024-12-31 13F GILEAD SCIENCES COM 375558103 283,762 -1,147 -0.40 26,211 9.73 1.6161
2024-11-08 2024-09-30 13F GILEAD SCIENCES COM 375558103 284,909 1,945 0.69 23,887 23.03 1.4155
2024-08-09 2024-06-30 13F GILEAD SCIENCES COM 375558103 282,964 3,230 1.15 19,414 -5.25 1.2291
2024-05-06 2024-03-31 13F GILEAD SCIENCES COM 375558103 279,734 -1,246 -0.44 20,491 -9.98 1.2931
2024-01-31 2023-12-31 13F GILEAD SCIENCES COM 375558103 280,980 -97 -0.03 22,762 8.07 1.5728
2023-10-26 2023-09-30 13F GILEAD SCIENCES COM 375558103 281,077 5,566 2.02 21,064 -0.80 1.5476
2023-08-08 2023-06-30 13F GILEAD SCIENCES COM 375558103 275,511 -2,826 -1.02 21,234 -8.05 1.4843
2023-04-28 2023-03-31 13F GILEAD SCIENCES COM 375558103 278,337 2,121 0.77 23,094 -2.61 1.6140
2023-01-20 2022-12-31 13F GILEAD SCIENCES COM 375558103 276,216 3,968 1.46 23,713 41.23 1.7350
2022-11-04 2022-09-30 13F GILEAD SCIENCES COM 375558103 272,248 8,485 3.22 16,790 3.01 1.3708
2022-08-01 2022-06-30 13F GILEAD SCIENCES COM 375558103 263,763 11,921 4.73 16,300 8.88 1.2839
2022-04-19 2022-03-31 13F GILEAD SCIENCES COM 375558103 251,842 8,546 3.51 14,970 -15.28 1.0159
2022-02-08 2021-12-31 13F GILEAD SCIENCES COM 375558103 243,296 7,042 2.98 17,670 7.09 1.1367
2021-10-28 2021-09-30 13F GILEAD SCIENCES COM 375558103 236,254 13,290 5.96 16,500 7.49 1.1517
2021-07-28 2021-06-30 13F GILEAD SCIENCES COM 375558103 222,964 20,344 10.04 15,350 17.18 1.0623
2021-04-22 2021-03-31 13F GILEAD SCIENCES COM 375558103 202,620 16,640 8.95 13,100 20.85 0.9794
2021-01-29 2020-12-31 13F GILEAD SCIENCES COM 375558103 185,980 3,370 1.85 10,840 -6.07 0.8506
2020-11-03 2020-09-30 13F GILEAD SCIENCES COM 375558103 182,610 3,973 2.22 11,540 -16.01 1.0394
2020-07-24 2020-06-30 13F GILEAD SCIENCES COM 375558103 178,637 -1,008 -0.56 13,740 2.31 1.3294
2020-05-14 2020-03-31 13F GILEAD SCIENCES COM 375558103 179,645 5,581 3.21 13,430 18.73 1.5835
2020-02-07 2019-12-31 13F GILEAD SCIENCES COM 375558103 174,064 4,475 2.64 11,311 5.23 1.0304
2019-10-30 2019-09-30 13F GILEAD SCIENCES COM 375558103 169,589 3,875 2.34 10,749 -3.99 1.0576
2019-07-29 2019-06-30 13F GILEAD SCIENCES COM 375558103 165,714 8,314 5.28 11,196 9.41 1.1067
2019-04-26 2019-03-31 13F GILEAD SCIENCES COM 375558103 157,400 5,970 3.94 10,233 8.03 1.0657
2019-02-12 2018-12-31 13F GILEAD SCIENCES COM 375558103 151,430 -605 -0.40 9,472 -19.31 1.1210
2018-11-02 2018-09-30 13F GILEAD SCIENCES COM 375558103 152,035 5,430 3.70 11,739 13.04 1.2097
2018-07-27 2018-06-30 13F GILEAD SCIENCES COM 375558103 146,605 7,670 5.52 10,385 -0.85 1.1410
2018-05-04 2018-03-31 13F/A-1 GILEAD SCIENCES COM 375558103 138,935 2,967 2.18 10,474 7.52 1.1683
2018-05-04 2018-03-31 13F GILEAD SCIENCES COM 375558103 138,935 2,967 10,474
2018-02-05 2017-12-31 13F GILEAD SCIENCES COM 375558103 135,968 7,898 6.17 9,741 -6.12 1.0398
2017-11-03 2017-09-30 13F GILEAD SCIENCES COM 375558103 128,070 26,167 25.68 10,376 43.85 1.1649
2017-07-27 2017-06-30 13F GILEAD SCIENCES COM 375558103 101,903 54,321 114.16 7,213 123.17 0.8523
2017-04-28 2017-03-31 13F GILEAD SCIENCES COM 375558103 47,582 30,355 176.21 3,232 161.91 0.3992
2017-02-02 2016-12-31 13F GILEAD SCIENCES COM 375558103 17,227 8,584 99.32 1,234 80.41 0.1599
2016-10-24 2016-09-30 13F GILEAD SCIENCES COM 375558103 8,643 82 0.96 684 -4.20 0.0899
2016-07-28 2016-06-30 13F GILEAD SCIENCES COM 375558103 8,561 675 8.56 714 -1.38 0.0999
2016-05-06 2016-03-31 13F GILEAD SCIENCES COM 375558103 7,886 167 2.16 724 -7.30 0.1048
2016-02-03 2015-12-31 13F GILEAD SCIENCES COM 375558103 7,719 -46 -0.59 781 2.49 0.1187
2015-11-02 2015-09-30 13F GILEAD SCIENCES COM 375558103 7,765 1,249 19.17 762 -0.13 0.1278
2015-08-03 2015-06-30 13F GILEAD SCIENCES COM 375558103 6,516 -2,063 -24.05 763 -9.38 0.1167
2015-05-15 2015-03-31 13F GILEAD SCIENCES COM 375558103 8,579 0 0.00 842 4.08 0.1287
2015-02-05 2014-12-31 13F GILEAD SCIENCES COM 375558103 8,579 -3,604 -29.58 809 -37.63 0.1250
2014-11-10 2014-09-30 13F GILEAD SCIENCES COM 375558103 12,183 264 2.21 1,297 31.28 0.2038
2014-08-14 2014-06-30 13F GILEAD SCIENCES COM 375558103 11,919 0 0.00 988 16.92 0.1491
2014-05-06 2014-03-31 13F GILEAD SCIENCES COM 375558103 11,919 -520 -4.18 845 -9.53 0.1326
2014-02-06 2013-12-31 13F GILEAD SCIENCES COM 375558103 12,439 797 6.85 934 27.60 0.1518
2013-11-04 2013-09-30 13F GILEAD SCIENCES COM 375558103 11,642 0 0.00 732 22.61 0.1305
2013-08-01 2013-06-30 13F GILEAD SCIENCES COM 375558103 11,642 11,642 597 0.1131
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.