Gilead Sciences, Inc.
CH ˙ SWX ˙ US3755581036
SecurityCH:GILD / Gilead Sciences, Inc.
InstitutionSummit Trail Advisors, Llc
Latest Disclosed Ownership43,831 shares
Latest Disclosed Value $ 6,108,759
Summit Trail Advisors, Llc reports 22.04% increase in ownership of GILD / Gilead Sciences, Inc.

On May 12, 2026 - Summit Trail Advisors, Llc filed a 13F-HR form disclosing ownership of 43,831 shares of Gilead Sciences, Inc. (CH:GILD) valued at $6,108,759 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 35,914 shares of Gilead Sciences, Inc.. This represents a change in shares of 22.04% 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.

Upgrade to unlock premium data and export to Excel .

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)
2026-05-12 2026-03-31 13F GILEAD SCIENCES COM 375558103 43,831 7,917 22.04 6,109 38.57 0.0875
2026-02-17 2025-12-31 13F GILEAD SCIENCES COM 375558103 35,914 -6,159 -14.64 4,408 -5.61 0.0762
2025-11-14 2025-09-30 13F GILEAD SCIENCES COM 375558103 42,073 2,053 5.13 4,670 5.25 0.0645
2025-08-14 2025-06-30 13F GILEAD SCIENCES COM 375558103 40,020 40,020 4,437 0.0762
2025-01-29 2024-12-31 13F GILEAD SCIENCES COM 375558103 0 -20,884 -100.00 0 -100.00
2024-11-12 2024-09-30 13F GILEAD SCIENCES COM 375558103 20,884 3,779 22.09 1,751 49.19 0.0434
2024-08-13 2024-06-30 13F Gilead Sciences COM 375558103 17,105 4,683 37.70 1,174 29.04 0.0308
2024-04-23 2024-03-31 13F GILEAD SCIENCES COM 375558103 12,422 65 0.53 910 -9.19 0.0242
2024-02-06 2023-12-31 13F GILEAD SCIENCES COM 375558103 12,357 -92 -0.74 1,001 7.40 0.0331
2023-10-30 2023-09-30 13F GILEAD SCIENCES COM 375558103 12,449 444 3.70 933 0.76 0.0343
2023-07-25 2023-06-30 13F GILEAD SCIENCES COM 375558103 12,005 3,090 34.66 925 25.17 0.0349
2023-05-04 2023-03-31 13F GILEAD SCIENCES COM 375558103 8,915 3,000 50.72 740 45.76 0.0298
2023-02-07 2022-12-31 13F Gilead Sciences COM 375558103 5,915 -810 -12.04 508 22.17 0.0226
2022-11-10 2022-09-30 13F Gilead Sciences Stock 375558103 6,725 6,725 415 0.0224
2022-02-11 2021-12-31 13F Gilead Sciences COM 375558103 0 -3,420 -100.00 0 -100.00
2021-11-16 2021-09-30 13F Gilead Sciences COM 375558103 3,420 283 9.02 239 10.65 0.0179
2021-08-16 2021-06-30 13F Gilead Sciences Equity 375558103 3,137 -63 -1.97 216 4.35 0.0189
2021-05-17 2021-03-31 13F GILEAD SCIENCES Equity 375558103 3,200 -353 -9.94 207 0.00 0.0223
2021-02-16 2020-12-31 13F GILEAD SCIENCES Equity 375558103 3,553 3,553 207 0.0261
2020-11-16 2020-09-30 13F/A-1 Gilead Sciences Equity 375558103 0 -2,658 -100.00 0 -100.00
2020-08-13 2020-06-30 13F Gilead Sciences Equity 375558103 2,658 2,658 204 0.0381
2018-08-10 2018-06-30 13F GILEAD SCIENCES INC COM EQUITY 375558103 0 -7,808 -100.00 0 -100.00
2018-05-22 2018-03-31 13F/A-1 GILEAD SCIENCES INC COM EQUITY 375558103 7,808 2,265 40.86 348 -20.73 0.0591
2018-05-21 2018-03-31 13F GILEAD SCIENCES INC COM EQUITY 375558103 347,676 342,133 348
2018-02-14 2017-12-31 13F GILEAD SCIENCES EQUITY 375558103 5,543 5,543 439 0.0554
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.