Gilead Sciences, Inc.
CH ˙ SWX ˙ US3755581036
SecurityCH:GILD / Gilead Sciences, Inc.
InstitutionTectonic Advisors Llc
Latest Disclosed Ownership95,858 shares
Latest Disclosed Value $ 13,359,738
Tectonic Advisors Llc reports 1.51% decrease in ownership of GILD / Gilead Sciences, Inc.

On April 17, 2026 - Tectonic Advisors Llc filed a 13F-HR form disclosing ownership of 95,858 shares of Gilead Sciences, Inc. (CH:GILD) valued at $13,359,738 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 23, 2026 disclosing 97,332 shares of Gilead Sciences, Inc.. This represents a change in shares of -1.51% 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)
2026-04-17 2026-03-31 13F GILEAD SCIENCES COM 375558103 95,858 -1,474 -1.51 13,360 11.83 0.5248
2026-01-23 2025-12-31 13F GILEAD SCIENCES COM 375558103 97,332 3,650 3.90 11,947 14.89 0.6300
2025-10-21 2025-09-30 13F GILEAD SCIENCES COM 375558103 93,682 5,356 6.06 10,399 6.19 0.5679
2025-07-23 2025-06-30 13F GILEAD SCIENCES COM 375558103 88,326 6,541 8.00 9,793 6.86 0.5693
2025-05-02 2025-03-31 13F GILEAD SCIENCES COM 375558103 81,785 499 0.61 9,164 22.04 0.5729
2025-01-27 2024-12-31 13F GILEAD SCIENCES COM 375558103 81,286 5,580 7.37 7,508 18.29 0.4888
2024-10-23 2024-09-30 13F GILEAD SCIENCES COM 375558103 75,706 9,958 15.15 6,347 40.73 0.4145
2024-08-02 2024-06-30 13F GILEAD SCIENCES COM 375558103 65,748 10,097 18.14 4,511 10.65 0.3250
2024-05-07 2024-03-31 13F GILEAD SCIENCES COM 375558103 55,651 5,786 11.60 4,076 0.92 0.3109
2024-01-17 2023-12-31 13F GILEAD SCIENCES COM 375558103 49,865 2,903 6.18 4,040 14.78 0.3381
2023-10-24 2023-09-30 13F GILEAD SCIENCES COM 375558103 46,962 5,221 12.51 3,519 9.42 0.3299
2023-07-14 2023-06-30 13F GILEAD SCIENCES COM 375558103 41,741 4,603 12.39 3,217 4.38 0.3961
2023-04-26 2023-03-31 13F GILEAD SCIENCES COM 375558103 37,138 6,887 22.77 3,081 18.64 0.4214
2023-02-14 2022-12-31 13F GILEAD SCIENCES COM 375558103 30,251 3,518 13.16 2,597 57.49 0.4026
2022-11-08 2022-09-30 13F GILEAD SCIENCES COM 375558103 26,733 5,840 27.95 1,649 27.73 0.3042
2022-08-11 2022-06-30 13F GILEAD SCIENCES COM 375558103 20,893 4,958 31.11 1,291 36.33 0.2358
2022-05-09 2022-03-31 13F GILEAD SCIENCES COM 375558103 15,935 3,593 29.11 947 5.69 0.1630
2022-02-02 2021-12-31 13F GILEAD SCIENCES COM 375558103 12,342 6,146 99.19 896 106.93 0.1605
2021-11-02 2021-09-30 13F GILEAD SCIENCES COM 375558103 6,196 1,821 41.62 433 43.85 0.0850
2021-07-22 2021-06-30 13F GILEAD SCIENCES COM 375558103 4,375 798 22.31 301 29.74 0.0621
2021-05-18 2021-03-31 13F GILEAD SCIENCES COM 375558103 3,577 3,577 232 0.0576
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.