Gilead Sciences, Inc.
CH ˙ SWX ˙ US3755581036
SecurityCH:GILD / Gilead Sciences, Inc.
InstitutionZevin Asset Management Llc
Latest Disclosed Ownership4,006 shares
Latest Disclosed Value $ 558,316
Zevin Asset Management Llc ownership in GILD / Gilead Sciences, Inc.

On May 7, 2026 - Zevin Asset Management Llc filed a 13F-HR form disclosing ownership of 4,006 shares of Gilead Sciences, Inc. (CH:GILD) valued at $558,316 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 12, 2026 disclosing 4,006 shares of Gilead Sciences, Inc.. This represents a change in shares of 0.00% 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)
2026-05-07 2026-03-31 13F Gilead Sciences COM 375558103 4,006 0 0.00 558 13.65 0.0772
2026-02-12 2025-12-31 13F Gilead Sciences COM 375558103 4,006 0 0.00 492 0.0659
2025-11-10 2025-09-30 13F Gilead Sciences COM 375558103 4,006 0 0.00 0 0.0647
2025-08-06 2025-06-30 13F Gilead Sciences COM 375558103 4,006 -1,299 -24.49 0 0.0639
2025-05-06 2025-03-31 13F Gilead Sciences COM 375558103 5,305 -717 -11.91 1 0.0942
2025-02-10 2024-12-31 13F Gilead Sciences COM 375558103 6,022 5 0.08 1 0.0818
2024-11-07 2024-09-30 13F Gilead Sciences COM 375558103 6,017 0 0.00 1 0.0779
2024-07-29 2024-06-30 13F Gilead Sciences COM 375558103 6,017 0 0.00 0 0.0669
2024-05-09 2024-03-31 13F Gilead Sciences COM 375558103 6,017 -20 -0.33 0 0.0733
2024-02-07 2023-12-31 13F Gilead Sciences COM 375558103 6,037 20 0.33 0 0.0878
2023-11-07 2023-09-30 13F Gilead Sciences COM 375558103 6,017 0 0.00 0 0.0907
2023-08-07 2023-06-30 13F Gilead Sciences COM 375558103 6,017 -2,393 -28.45 0 0.0931
2023-05-05 2023-03-31 13F Gilead Sciences COM 375558103 8,410 0 0.00 1 0.1424
2023-02-07 2022-12-31 13F Gilead Sciences COM 375558103 8,410 0 0.00 1 -100.00 0.1568
2022-11-08 2022-09-30 13F Gilead Sciences COM 375558103 8,410 0 0.00 519 -0.19 0.1226
2022-08-08 2022-06-30 13F Gilead Sciences COM 375558103 8,410 0 0.00 520 4.00 0.1173
2022-05-05 2022-03-31 13F Gilead Sciences COM 375558103 8,410 0 0.00 500 -18.17 0.0957
2022-01-27 2021-12-31 13F Gilead Sciences COM 375558103 8,410 0 0.00 611 4.09 0.1101
2021-11-10 2021-09-30 13F Gilead Sciences COM 375558103 8,410 0 0.00 587 1.38 0.1119
2021-08-09 2021-06-30 13F Gilead Sciences COM 375558103 8,410 0 0.00 579 6.43 0.1152
2021-05-10 2021-03-31 13F Gilead Sciences COM 375558103 8,410 0 0.00 544 11.02 0.1203
2021-02-11 2020-12-31 13F Gilead Sciences COM 375558103 8,410 2,700 47.29 490 35.73 0.1150
2020-11-04 2020-09-30 13F Gilead Sciences COM 375558103 5,710 0 0.00 361 -17.77 0.0985
2020-08-06 2020-06-30 13F Gilead Sciences COM 375558103 5,710 225 4.10 439 7.07 0.1334
2020-05-07 2020-03-31 13F Gilead Sciences COM 375558103 5,485 0 0.00 410 15.17 0.1526
2020-02-06 2019-12-31 13F Gilead Sciences COM 375558103 5,485 5,485 356 0.1092
2017-02-17 2016-12-31 13F Gilead Sciences COM 375558103 0 -4,400 -100.00 0 -100.00
2016-11-07 2016-09-30 13F Gilead Sciences COM 375558103 4,400 -52 -1.17 348 -6.20 0.1122
2016-08-08 2016-06-30 13F Gilead Sciences COM 375558103 4,452 0 0.00 371 -9.29 0.1030
2016-05-02 2016-03-31 13F Gilead Sciences COM 375558103 4,452 52 1.18 409 -8.09 0.1158
2016-02-08 2015-12-31 13F Gilead Sciences COM 375558103 4,400 0 0.00 445 3.01 0.1172
2015-11-12 2015-09-30 13F Gilead Sciences COM 375558103 4,400 -250 -5.38 432 -20.59 0.1262
2015-08-05 2015-06-30 13F Gilead Sciences COM 375558103 4,650 0 0.00 544 19.30 0.1451
2015-05-07 2015-03-31 13F Gilead Sciences COM 375558103 4,650 -133 -2.78 456 1.11 0.1258
2015-02-10 2014-12-31 13F Gilead Sciences COM 375558103 4,783 133 2.86 451 -8.89 0.1267
2014-11-06 2014-09-30 13F Gilead Sciences COM 375558103 4,650 0 0.00 495 28.24 0.1449
2014-08-11 2014-06-30 13F Gilead Sciences COM 375558103 4,650 0 0.00 386 17.33 0.1135
2014-05-13 2014-03-31 13F Gilead Sciences COM 375558103 4,650 0 0.00 329 -5.73 0.1037
2014-02-10 2013-12-31 13F Gilead Sciences COM 375558103 4,650 0 0.00 349 19.52 0.0986
2013-11-12 2013-09-30 13F Gilead Sciences COM 375558103 4,650 0 0.00 292 22.69 0.0894
2013-09-19 2013-06-30 13F Gilead Sciences COM 375558103 4,650 4,650 238 0.0824
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.