Gilead Sciences, Inc.
CH ˙ SWX ˙ US3755581036
SecurityCH:GILD / Gilead Sciences, Inc.
InstitutionTcw Group Inc
Latest Disclosed Ownership27,059 shares
Latest Disclosed Value $ 3,771,213
Tcw Group Inc reports 2.65% increase in ownership of GILD / Gilead Sciences, Inc.

On May 14, 2026 - Tcw Group Inc filed a 13F-HR form disclosing ownership of 27,059 shares of Gilead Sciences, Inc. (CH:GILD) valued at $3,771,213 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 26,360 shares of Gilead Sciences, Inc.. This represents a change in shares of 2.65% 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)
2026-05-14 2026-03-31 13F GILEAD SCIENCES COM 375558103 27,059 699 2.65 3,771 16.57 0.0151
2026-02-17 2025-12-31 13F GILEAD SCIENCES COM 375558103 26,360 26,360 3,235 0.0232
2025-11-14 2025-09-30 13F GILEAD SCIENCES COM 375558103 0 -25,794 -100.00 0 -100.00
2025-08-14 2025-06-30 13F GILEAD SCIENCES COM 375558103 25,794 393 1.55 2,860 0.46 0.0224
2025-05-07 2025-03-31 13F GILEAD SCIENCES COM 375558103 25,401 -4,876 -16.10 2,846 1.79 0.0255
2025-02-04 2024-12-31 13F GILEAD SCIENCES COM 375558103 30,277 343 1.15 2,797 11.44 0.0235
2024-11-19 2024-09-30 13F/A-1 GILEAD SCIENCES COM 375558103 29,934 -148,669 -83.24 2,510 -79.52 0.0219
2024-11-08 2024-09-30 13F GILEAD SCIENCES COM 375558103 29,934 -148,669 2,510 0.0113
2024-07-19 2024-06-30 13F GILEAD SCIENCES COM 375558103 178,603 -381,108 -68.09 12,254 -70.11 0.1095
2024-05-10 2024-03-31 13F GILEAD SCIENCES COM 375558103 559,711 4,578 0.82 40,999 -8.84 0.4150
2024-02-09 2023-12-31 13F GILEAD SCIENCES COM 375558103 555,133 2,852 0.52 44,974 8.66 0.5012
2023-11-15 2023-09-30 13F GILEAD SCIENCES COM 375558103 552,281 -132,753 -19.38 41,388 -21.61 0.5199
2023-08-14 2023-06-30 13F GILEAD SCIENCES COM 375558103 685,034 79,757 13.18 52,796 5.13 0.5854
2023-05-15 2023-03-31 13F GILEAD SCIENCES COM 375558103 605,277 25,873 4.47 50,220 0.96 0.6424
2023-02-14 2022-12-31 13F GILEAD SCIENCES COM 375558103 579,404 10,298 1.81 49,742 41.68 0.7121
2022-10-27 2022-09-30 13F GILEAD SCIENCES COM 375558103 569,106 66,089 13.14 35,109 12.92 0.5136
2022-07-19 2022-06-30 13F GILEAD SCIENCES COM 375558103 503,017 -122,282 -19.56 31,091 -16.36 0.4070
2022-04-19 2022-03-31 13F GILEAD SCIENCES COM 375558103 625,299 -73,846 -10.56 37,174 -26.77 0.3547
2022-01-26 2021-12-31 13F GILEAD SCIENCES COM 375558103 699,145 25,768 3.83 50,765 7.93 0.4175
2021-10-26 2021-09-30 13F GILEAD SCIENCES COM 375558103 673,377 -6,725 -0.99 47,035 0.44 0.1211
2021-07-23 2021-06-30 13F GILEAD SCIENCES COM 375558103 680,102 -47,332 -6.51 46,831 -0.39 0.4058
2021-05-05 2021-03-31 13F GILEAD SCIENCES COM 375558103 727,434 -44,829 -5.80 47,015 4.50 0.4504
2021-02-02 2020-12-31 13F GILEAD SCIENCES COM 375558103 772,263 -47,824 -5.83 44,992 -13.18 0.3917
2020-10-30 2020-09-30 13F GILEAD SCIENCES COM 375558103 820,087 -6,350 -0.77 51,822 -18.50 0.5651
2020-08-05 2020-06-30 13F GILEAD SCIENCES COM 375558103 826,437 -122,749 -12.93 63,586 -10.39 0.7416
2020-05-05 2020-03-31 13F GILEAD SCIENCES COM 375558103 949,186 -119,504 -11.18 70,961 2.18 0.9812
2020-02-10 2019-12-31 13F GILEAD SCIENCES COM 375558103 1,068,690 -90,371 -7.80 69,444 -5.47 0.7690
2019-11-13 2019-09-30 13F GILEAD SCIENCES COM 375558103 1,159,061 -144,140 -11.06 73,461 -16.56 0.8369
2019-08-07 2019-06-30 13F GILEAD SCIENCES COM 375558103 1,303,201 -537,453 -29.20 88,044 -26.42 0.9363
2019-05-13 2019-03-31 13F GILEAD SCIENCES COM 375558103 1,840,654 -98,326 -5.07 119,661 -1.34 1.1460
2019-02-11 2018-12-31 13F GILEAD SCIENCES COM 375558103 1,938,980 -118,409 -5.76 121,283 -23.65 1.2548
2018-10-30 2018-09-30 13F GILEAD SCIENCES COM 375558103 2,057,389 -268,717 -11.55 158,851 -3.60 1.3026
2018-08-01 2018-06-30 13F GILEAD SCIENCES COM 375558103 2,326,106 -13,888 -0.59 164,781 -6.59 1.3365
2018-05-10 2018-03-31 13F GILEAD SCIENCES COM 375558103 2,339,994 67,019 2.95 176,412 8.34 1.4348
2018-02-09 2017-12-31 13F GILEAD SCIENCES COM 375558103 2,272,975 -87,543 -3.71 162,836 -14.86 1.3114
2017-11-06 2017-09-30 13F GILEAD SCIENCES COM 375558103 2,360,518 262,162 12.49 191,249 28.77 1.5202
2017-08-11 2017-06-30 13F GILEAD SCIENCES COM 375558103 2,098,356 85,448 4.25 148,521 8.63 1.2333
2017-05-11 2017-03-31 13F GILEAD SCIENCES COM 375558103 2,012,908 -169,017 -7.75 136,717 -12.50 1.1404
2017-02-10 2016-12-31 13F GILEAD SCIENCES COM 375558103 2,181,925 518,111 31.14 156,247 18.69 1.1762
2016-11-14 2016-09-30 13F GILEAD SCIENCES COM 375558103 1,663,814 216,967 15.00 131,641 9.07 0.9999
2016-08-12 2016-06-30 13F/A-1 GILEAD SCIENCES COM 375558103 1,446,847 187,430 14.88 120,695 4.33 0.9120
2016-08-11 2016-06-30 13F GILEAD SCIENCES COM 375558103 1,446,847 120,695
2016-05-16 2016-03-31 13F GILEAD SCIENCES COM 375558103 1,259,417 262,335 26.31 115,691 14.67 0.8486
2016-02-16 2015-12-31 13F GILEAD SCIENCES COM 375558103 997,082 14,274 1.45 100,894 4.55 0.7245
2015-11-13 2015-09-30 13F GILEAD SCIENCES COM 375558103 982,808 237,083 31.79 96,502 10.53 0.6925
2015-08-12 2015-06-30 13F GILEAD SCIENCES COM 375558103 745,725 312,954 72.31 87,309 105.59 0.5622
2015-05-13 2015-03-31 13F GILEAD SCIENCES COM 375558103 432,771 10,521 2.49 42,468 6.70 0.2039
2015-02-13 2014-12-31 13F GILEAD SCIENCES COM 375558103 422,250 -318,250 -42.98 39,801 -49.51 0.1665
2014-11-14 2014-09-30 13F GILEAD SCIENCES COM 375558103 740,500 -28,850 -3.75 78,826 23.58 0.3170
2014-08-14 2014-06-30 13F GILEAD SCIENCES COM 375558103 769,350 5,050 0.66 63,787 17.78 0.2627
2014-05-13 2014-03-31 13F GILEAD SCIENCES COM 375558103 764,300 6,150 0.81 54,158 -4.93 0.2249
2014-02-18 2013-12-31 13F/A-1 GILEAD SCIENCES COM 375558103 758,150 2,350 0.31 56,967 19.95 0.2401
2014-02-14 2013-12-31 13F GILEAD SCIENCES COM 375558103 56,967 758,150
2013-11-14 2013-09-30 13F GILEAD SCIENCES COM 375558103 755,800 7,796 1.04 47,494 23.99 0.2194
2013-08-14 2013-06-30 13F/A-1 GILEAD SCIENCES COM 375558103 748,004 748,004 38,306 0.1889
2013-08-14 2013-06-30 13F GILEAD SCIENCES COM 375558103 748,004 38,306
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.