Gilead Sciences, Inc.
CH ˙ SWX ˙ US3755581036
SecurityCH:GILD / Gilead Sciences, Inc.
InstitutionOxford Asset Management Llp
Latest Disclosed Ownership4,744 shares
Latest Disclosed Value $ 661,171
Oxford Asset Management Llp reports 74.67% increase in ownership of GILD / Gilead Sciences, Inc.

On May 15, 2026 - Oxford Asset Management Llp filed a 13F-HR form disclosing ownership of 4,744 shares of Gilead Sciences, Inc. (CH:GILD) valued at $661,171 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 2,716 shares of Gilead Sciences, Inc.. This represents a change in shares of 74.67% 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)
2026-05-15 2026-03-31 13F GILEAD SCIENCES COM 375558103 4,744 2,028 74.67 661 98.50 0.2847
2026-02-17 2025-12-31 13F GILEAD SCIENCES COM 375558103 2,716 -7,267 -72.79 333 -69.95 0.1356
2025-11-14 2025-09-30 13F GILEAD SCIENCES COM 375558103 9,983 3,449 52.79 1,108 53.04 0.4062
2025-08-14 2025-06-30 13F GILEAD SCIENCES COM 375558103 6,534 -682 -9.45 724 -10.40 0.2620
2025-05-15 2025-03-31 13F GILEAD SCIENCES COM 375558103 7,216 7,216 809 0.4094
2024-08-14 2024-06-30 13F GILEAD SCIENCES COM 375558103 0 -8,404 -100.00 0 -100.00
2024-05-15 2024-03-31 13F GILEAD SCIENCES COM 375558103 8,404 3,856 84.78 616 67.12 0.7529
2024-02-09 2023-12-31 13F GILEAD SCIENCES COM 375558103 4,548 1,820 66.72 368 80.39 0.6652
2020-05-15 2020-03-31 13F GILEAD SCIENCES COM 375558103 2,728 -203,708 -98.68 204 -98.48 0.0421
2020-02-13 2019-12-31 13F GILEAD SCIENCES COM 375558103 206,436 41,950 25.50 13,414 28.67 0.4226
2019-11-14 2019-09-30 13F GILEAD SCIENCES COM 375558103 164,486 -28,666 -14.84 10,425 -20.11 0.2656
2019-08-14 2019-06-30 13F GILEAD SCIENCES COM 375558103 193,152 41,216 27.13 13,049 32.12 0.3009
2019-05-15 2019-03-31 13F GILEAD SCIENCES COM 375558103 151,936 2,203 1.47 9,877 5.46 0.2257
2019-02-14 2018-12-31 13F GILEAD SCIENCES COM 375558103 149,733 89,864 150.10 9,366 104.19 0.2669
2018-11-14 2018-09-30 13F GILEAD SCIENCES COM 375558103 59,869 -85,641 -58.86 4,587 -55.58 0.1009
2018-08-13 2018-06-30 13F GILEAD SCIENCES COM 375558103 145,510 137,973 1,830.61 10,327 1,718.13 0.2194
2018-05-15 2018-03-31 13F GILEAD SCIENCES COM 375558103 7,537 -3,782 -33.41 568 -29.96 0.0157
2018-02-13 2017-12-31 13F GILEAD SCIENCES COM 375558103 11,319 3,254 40.35 811 25.93 0.0221
2017-11-13 2017-09-30 13F GILEAD SCIENCES COM 375558103 8,065 8,065 644 0.0150
2016-02-03 2015-12-31 13F GILEAD SCIENCES COM 375558103 0 -55,762 -100.00 0 -100.00
2015-10-14 2015-09-30 13F GILEAD SCIENCES COM 375558103 55,762 -68,542 -55.14 5,475 -62.38 0.2635
2015-08-13 2015-06-30 13F/A-1 GILEAD SCIENCES COM 375558103 124,304 -1,624 -1.29 14,554 17.78 0.5154
2015-08-11 2015-06-30 13F GILEAD SCIENCES COM 375558103 124,304 14,554
2015-04-17 2015-03-31 13F/A-1 GILEAD SCIENCES COM 375558103 125,928 100,881 402.77 12,357 418.98 0.4531
2015-04-15 2015-03-31 13F GILEAD SCIENCES COM 375558103 125,928 12,357
2015-01-20 2014-12-31 13F GILEAD SCIENCES COM 375558103 25,047 -130,649 -83.91 2,381 -85.65 0.0849
2014-11-14 2014-09-30 13F GILEAD SCIENCES COM 375558103 155,696 65,228 72.10 16,587 158.73 0.6199
2014-05-05 2014-03-31 13F GILEAD SCIENCES COM 375558103 90,468 79,590 731.66 6,411 684.70 0.2055
2014-01-22 2013-12-31 13F GILEAD SCIENCES COM 375558103 10,878 10,878 817 0.0251
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.