Gilead Sciences, Inc.
CH ˙ SWX ˙ US3755581036
SecurityCH:GILD / Gilead Sciences, Inc.
InstitutionAddison Advisors LLC
Latest Disclosed Ownership861 shares
Latest Disclosed Value $ 119,998
Addison Advisors LLC reports 5.51% increase in ownership of GILD / Gilead Sciences, Inc.

On May 8, 2026 - Addison Advisors LLC filed a 13F-HR form disclosing ownership of 861 shares of Gilead Sciences, Inc. (CH:GILD) valued at $119,998 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 6, 2026 disclosing 816 shares of Gilead Sciences, Inc.. This represents a change in shares of 5.51% 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)
2026-05-08 2026-03-31 13F GILEAD SCIENCES COM 375558103 861 45 5.51 120 19.00 0.0265
2026-02-06 2025-12-31 13F GILEAD SCIENCES COM 375558103 816 29 3.68 100 14.94 0.0225
2025-11-07 2025-09-30 13F GILEAD SCIENCES COM 375558103 787 43 5.78 87 6.10 0.0203
2025-08-07 2025-06-30 13F GILEAD SCIENCES COM 375558103 744 -19 -2.49 82 -3.53 0.0206
2025-05-12 2025-03-31 13F GILEAD SCIENCES COM 375558103 763 -2 -0.26 85 21.43 0.0233
2025-02-04 2024-12-31 13F GILEAD SCIENCES COM 375558103 765 88 13.00 71 25.00 0.0197
2024-11-04 2024-09-30 13F GILEAD SCIENCES COM 375558103 677 203 42.83 57 75.00 0.0158
2024-08-05 2024-06-30 13F GILEAD SCIENCES COM 375558103 474 97 25.73 33 18.52 0.0105
2024-05-06 2024-03-31 13F GILEAD SCIENCES COM 375558103 377 -126 -25.05 28 -32.50 0.0095
2024-02-02 2023-12-31 13F GILEAD SCIENCES COM 375558103 503 80 18.91 41 29.03 0.0159
2023-11-07 2023-09-30 13F GILEAD SCIENCES COM 375558103 423 -141 -25.00 32 -27.91 0.0148
2023-08-03 2023-06-30 13F GILEAD SCIENCES COM 375558103 564 35 6.62 43 0.00 0.0215
2023-05-09 2023-03-31 13F GILEAD SCIENCES COM 375558103 529 -18 -3.29 44 -6.52 0.0246
2023-02-07 2022-12-31 13F GILEAD SCIENCES COM 375558103 547 9 1.67 47 39.39 0.0281
2022-10-31 2022-09-30 13F GILEAD SCIENCES COM 375558103 538 17 3.26 33 3.13 0.0205
2022-08-04 2022-06-30 13F GILEAD SCIENCES COM 375558103 521 35 7.20 32 10.34 0.0194
2022-04-29 2022-03-31 13F GILEAD SCIENCES COM 375558103 486 97 24.94 29 3.57 0.0159
2022-01-31 2021-12-31 13F GILEAD SCIENCES COM 375558103 389 131 50.78 28 55.56 0.0173
2021-11-08 2021-09-30 13F GILEAD SCIENCES COM 375558103 258 4 1.57 18 5.88 0.0144
2021-07-29 2021-06-30 13F GILEAD SCIENCES COM 375558103 254 0 0.00 17 13.33 0.0137
2021-02-02 2020-12-31 13F GILEAD SCIENCES COM 375558103 254 254 15 0.0144
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.