Gilead Sciences, Inc.
CH ˙ SWX ˙ US3755581036
SecurityCH:GILD / Gilead Sciences, Inc.
InstitutionJanus Henderson Group Plc
Latest Disclosed Ownership1,972,639 shares
Latest Disclosed Value $ 274,919,159
Janus Henderson Group Plc reports 5.94% increase in ownership of GILD / Gilead Sciences, Inc.

On May 18, 2026 - Janus Henderson Group Plc filed a 13F-HR/A form disclosing ownership of 1,972,639 shares of Gilead Sciences, Inc. (CH:GILD) valued at $274,919,159 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 1,862,114 shares of Gilead Sciences, Inc.. This represents a change in shares of 5.94% 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)
2026-05-18 2026-03-31 13F/A-1 GILEAD SCIENCES COM 375558103 1,972,639 110,525 5.94 274,919 20.28 0.0463
2026-05-15 2026-03-31 13F GILEAD SCIENCES COM 375558103 1,972,639 110,525 274,919 0.0510
2026-02-17 2025-12-31 13F GILEAD SCIENCES COM 375558103 1,862,114 203,652 12.28 228,566 24.17 0.1024
2025-11-14 2025-09-30 13F GILEAD SCIENCES COM 375558103 1,658,462 526,945 46.57 184,075 46.75 0.0840
2025-08-14 2025-06-30 13F GILEAD SCIENCES COM 375558103 1,131,517 403,100 55.34 125,432 54.03 0.0615
2025-05-15 2025-03-31 13F GILEAD SCIENCES COM 375558103 728,417 -567,660 -43.80 81,432 -31.98 0.0446
2025-02-14 2024-12-31 13F GILEAD SCIENCES COM 375558103 1,296,077 -465,484 -26.42 119,717 -18.94 0.0608
2024-11-14 2024-09-30 13F GILEAD SCIENCES COM 375558103 1,761,561 98,067 5.90 147,688 29.40 0.0756
2024-08-14 2024-06-30 13F GILEAD SCIENCES COM 375558103 1,663,494 -50,249 -2.93 114,131 -9.08 0.0611
2024-05-15 2024-03-31 13F GILEAD SCIENCES COM 375558103 1,713,743 -56,157 -3.17 125,530 -12.45 0.0685
2024-02-14 2023-12-31 13F GILEAD SCIENCES COM 375558103 1,769,900 -118,742 -6.29 143,381 1.30 0.0855
2023-11-14 2023-09-30 13F GILEAD SCIENCES COM 375558103 1,888,642 -28,925 -1.51 141,537 -4.23 0.0927
2023-08-14 2023-06-30 13F GILEAD SCIENCES COM 375558103 1,917,567 310,811 19.34 147,782 10.85 0.0919
2023-05-15 2023-03-31 13F GILEAD SCIENCES COM 375558103 1,606,756 -431,194 -21.16 133,314 -23.80 0.0879
2023-02-14 2022-12-31 13F GILEAD SCIENCES COM 375558103 2,037,950 -94,370 -4.43 174,957 33.00 0.1250
2023-01-13 2022-09-30 13F/A-1 GILEAD SCIENCES COM 375558103 2,132,320 -783,593 -26.87 131,543 -27.02 0.0986
2022-11-14 2022-09-30 13F GILEAD SCIENCES COM 375558103 2,132,320 -783,593 131,543 0.0985
2022-08-15 2022-06-30 13F GILEAD SCIENCES COM 375558103 2,915,913 -2,399,373 -45.14 180,235 -42.96 0.1243
2022-05-16 2022-03-31 13F GILEAD SCIENCES COM 375558103 5,315,286 -22,544 -0.42 315,996 -18.47 0.1526
2022-02-14 2021-12-31 13F GILEAD SCIENCES COM 375558103 5,337,830 -132,509 -2.42 387,582 1.43 0.1617
2021-11-16 2021-09-30 13F GILEAD SCIENCES COM 375558103 5,470,339 233,792 4.46 382,100 5.97 0.1671
2021-08-16 2021-06-30 13F GILEAD SCIENCES COM 375558103 5,236,547 775,016 17.37 360,585 25.05 0.1543
2021-05-17 2021-03-31 13F GILEAD SCIENCES COM 375558103 4,461,531 -509,988 -10.26 288,349 -0.44 0.1316
2021-02-16 2020-12-31 13F GILEAD SCIENCES COM 375558103 4,971,519 -307,322 -5.82 289,637 -13.17 0.1346
2020-11-16 2020-09-30 13F GILEAD SCIENCES COM 375558103 5,278,841 -576,816 -9.85 333,563 -25.96 0.1739
2020-08-14 2020-06-30 13F GILEAD SCIENCES COM 375558103 5,855,657 63,922 1.10 450,537 4.05 0.2529
2020-05-14 2020-03-31 13F GILEAD SCIENCES COM 375558103 5,791,735 -823,733 -12.45 432,981 0.72 0.2980
2020-02-18 2019-12-31 13F GILEAD SCIENCES COM 375558103 6,615,468 1,392,639 26.66 429,872 29.86 0.2201
2019-11-14 2019-09-30 13F GILEAD SCIENCES COM 375558103 5,222,829 767,158 17.22 331,024 9.97 0.1793
2019-07-31 2019-06-30 13F GILEAD SCIENCES COM 375558103 4,455,671 -525,209 -10.54 301,025 -7.04 0.1639
2019-04-30 2019-03-31 13F GILEAD SCIENCES COM 375558103 4,980,880 -976,622 -16.39 323,811 -13.11 0.1795
2019-02-06 2018-12-31 13F GILEAD SCIENCES COM 375558103 5,957,502 2,292,531 62.55 372,655 31.69 0.2377
2018-11-09 2018-09-30 13F GILEAD SCIENCES COM 375558103 3,664,971 522,519 16.63 282,974 27.11 0.1512
2018-08-10 2018-06-30 13F GILEAD SCIENCES COM 375558103 3,142,452 442,801 16.40 222,615 9.38 0.1269
2018-05-14 2018-03-31 13F GILEAD SCIENCES COM 375558103 2,699,651 848,423 45.83 203,528 53.46 0.1199
2018-03-12 2017-12-31 13F/A-1 GILEAD SCIENCES COM 375558103 1,851,228 69,321 3.89 132,626 -8.13 0.0817
2018-02-09 2017-12-31 13F GILEAD SCIENCES COM 375558103 1,851,228 69,321 132,626
2017-11-14 2017-09-30 13F GILEAD SCIENCES COM 375558103 1,781,907 30,713 1.75 144,366 16.47 0.0925
2017-08-17 2017-06-30 13F/A-1 GILEAD SCIENCES COM 375558103 1,751,194 1,568,191 856.92 123,949 897.26 0.0845
2017-08-14 2017-06-30 13F GILEAD SCIENCES COM 375558103 1,751,194 1,568,191 123,949
2017-05-03 2017-03-31 13F GILEAD SCIENCES COM 375558103 183,003 -1,610 -0.87 12,429 -6.00 0.0873
2017-01-30 2016-12-31 13F GILEAD SCIENCES COM 375558103 184,613 14,234 8.35 13,223 -1.91 0.0975
2016-10-24 2016-09-30 13F GILEAD SCIENCES COM 375558103 170,379 253 0.15 13,480 -5.00 0.0993
2016-07-29 2016-06-30 13F GILEAD SCIENCES COM 375558103 170,126 -21,063 -11.02 14,189 -19.15 0.1180
2016-05-12 2016-03-31 13F GILEAD SCIENCES COM 375558103 191,189 1,571 0.83 17,550 -8.52 0.1424
2016-02-03 2015-12-31 13F GILEAD SCIENCES COM 375558103 189,618 -5,817 -2.98 19,185 0.08 0.1539
2015-11-16 2015-09-30 13F GILEAD SCIENCES COM 375558103 195,435 -5,142 -2.56 19,170 -18.39 0.1689
2015-08-17 2015-06-30 13F GILEAD SCIENCES COM 375558103 200,577 -149,549 -42.71 23,491 -31.63 0.1846
2015-06-02 2015-03-31 13F/A-1 GILEAD SCIENCES COM 375558103 350,126 -941,544 -72.89 34,360 -71.79 0.2651
2015-05-15 2015-03-31 13F GILEAD SCIENCES COM 375558103 350,126 34,360
2015-02-12 2014-12-31 13F GILEAD SCIENCES COM 375558103 1,291,670 -557,608 -30.15 121,804 -38.13 0.8783
2014-11-12 2014-09-30 13F GILEAD SCIENCES COM 375558103 1,849,278 -224,441 -10.82 196,865 14.50 1.8517
2014-08-13 2014-06-30 13F GILEAD SCIENCES COM 375558103 2,073,719 763,883 58.32 171,942 85.28 1.6056
2014-05-08 2014-03-31 13F GILEAD SCIENCES COM 375558103 1,309,836 511,384 64.05 92,802 54.68 0.9034
2014-01-14 2013-12-31 13F GILEAD SCIENCES COM 375558103 798,452 9,052 1.15 59,996 20.91 0.6062
2013-11-12 2013-09-30 13F GILEAD SCIENCES COM 375558103 789,400 -152,487 -16.19 49,622 1.99 0.5474
2013-08-15 2013-06-30 13F GILEAD SCIENCES COM 375558103 941,887 941,887 48,653 0.5688
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.