Gilead Sciences, Inc.
CH ˙ SWX ˙ US3755581036
SecurityCH:GILD / Gilead Sciences, Inc.
InstitutionPuzo Michael J
Latest Disclosed Ownership1,976 shares
Latest Disclosed Value $ 275,395
Puzo Michael J ownership in GILD / Gilead Sciences, Inc.

On May 7, 2026 - Puzo Michael J filed a 13F-HR form disclosing ownership of 1,976 shares of Gilead Sciences, Inc. (CH:GILD) valued at $275,395 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 14, 2026 disclosing 1,976 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 1,976 0 0.00 275 13.64 0.0802
2026-02-14 2025-12-31 13F GILEAD SCIENCES COM 375558103 1,976 0 0.00 243 10.50 0.0660
2025-11-10 2025-09-30 13F GILEAD SCIENCES COM 375558103 1,976 -124 -5.90 219 -5.60 0.0598
2025-07-23 2025-06-30 13F GILEAD SCIENCES COM 375558103 2,100 0 0.00 233 -1.28 0.0663
2025-04-21 2025-03-31 13F GILEAD SCIENCES COM 375558103 2,100 2,100 235 0.0674
2024-05-13 2024-03-31 13F GILEAD SCIENCES COM 375558103 0 -2,600 -100.00 0 -100.00
2024-02-14 2023-12-31 13F GILEAD SCIENCES COM 375558103 2,600 2,600 211 0.0669
2023-11-14 2023-09-30 13F GILEAD SCIENCES COM 375558103 0 -2,600 -100.00 0 -100.00
2023-08-11 2023-06-30 13F GILEAD SCIENCES COM 375558103 2,600 -50 -1.89 200 -8.68 0.0634
2023-05-11 2023-03-31 13F GILEAD SCIENCES COM 375558103 2,650 -50 -1.85 220 -5.19 0.0733
2023-02-09 2022-12-31 13F GILEAD SCIENCES COM 375558103 2,700 2,700 232 0.0837
2022-05-17 2022-03-31 13F GILEAD SCIENCES COM 375558103 0 -3,000 -100.00 0 -100.00
2022-02-08 2021-12-31 13F GILEAD SCIENCES COM 375558103 3,000 0 0.00 218 3.81 0.0616
2021-11-10 2021-09-30 13F GILEAD SCIENCES COM 375558103 3,000 0 0.00 210 1.45 0.0666
2021-08-09 2021-06-30 13F GILEAD SCIENCES COM 375558103 3,000 -1,400 -31.82 207 -27.11 0.0643
2021-05-17 2021-03-31 13F GILEAD SCIENCES COM 375558103 4,400 0 0.00 284 10.94 0.0904
2021-02-16 2020-12-31 13F GILEAD SCIENCES COM 375558103 4,400 -100 -2.22 256 -9.86 0.0836
2020-10-28 2020-09-30 13F GILEAD SCIENCES COM 375558103 4,500 -100 -2.17 284 -19.77 0.1011
2020-07-28 2020-06-30 13F GILEAD SCIENCES COM 375558103 4,600 0 0.00 354 2.91 0.1324
2020-05-07 2020-03-31 13F GILEAD SCIENCES COM 375558103 4,600 -100 -2.13 344 12.79 0.1514
2020-01-15 2019-12-31 13F GILEAD SCIENCES COM 375558103 4,700 -845 -15.24 305 -13.35 0.1091
2019-11-06 2019-09-30 13F GILEAD SCIENCES COM 375558103 5,545 0 0.00 352 -6.13 0.1326
2019-07-24 2019-06-30 13F GILEAD SCIENCES COM 375558103 5,545 -400 -6.73 375 -3.10 0.1393
2019-05-01 2019-03-31 13F GILEAD SCIENCES COM 375558103 5,945 -50 -0.83 387 3.20 0.1509
2019-01-24 2018-12-31 13F GILEAD SCIENCES COM 375558103 5,995 -9,404 -61.07 375 -68.49 0.1666
2018-10-15 2018-09-30 13F GILEAD SCIENCES COM 375558103 15,399 -5,599 -26.66 1,190 -20.03 0.4489
2018-07-30 2018-06-30 13F GILEAD SCIENCES COM 375558103 20,998 3,202 17.99 1,488 10.80 0.6300
2018-04-24 2018-03-31 13F GILEAD SCIENCES COM 375558103 17,796 -100 -0.56 1,343 4.68 0.5721
2018-02-02 2017-12-31 13F GILEAD SCIENCES COM 375558103 17,896 2,050 12.94 1,283 -0.08 0.5287
2017-10-26 2017-09-30 13F GILEAD SCIENCES COM 375558103 15,846 -685 -4.14 1,284 9.65 0.6682
2017-07-25 2017-06-30 13F GILEAD SCIENCES COM 375558103 16,531 -790 -4.56 1,171 -0.43 0.6320
2017-05-16 2017-03-31 13F GILEAD SCIENCES COM 375558103 17,321 2,555 17.30 1,176 11.05 0.6532
2017-02-14 2016-12-31 13F GILEAD SCIENCES Common Stock 375558103 14,766 -7,155 -32.64 1,059 -38.96 0.6127
2016-11-16 2016-09-30 13F GILEAD SCIENCES Common Stock 375558103 21,921 3,967 22.10 1,735 15.82 1.0005
2016-08-08 2016-06-30 13F GILEAD SCIENCES Common Stock 375558103 17,954 3,563 24.76 1,498 13.31 0.9882
2016-05-27 2016-03-31 13F GILEAD SCIENCES Common Stock 375558103 14,391 5,886 69.21 1,322 53.54 0.8770
2016-02-12 2015-12-31 13F GILEAD SCIENCES Common Stock 375558103 8,505 -16 -0.19 861 2.87 0.6014
2015-11-13 2015-09-30 13F GILEAD SCIENCES Common Stock 375558103 8,521 -244 -2.78 837 -18.50 0.5946
2015-08-10 2015-06-30 13F GILEAD SCIENCES Common Stock 375558103 8,765 85 0.98 1,027 20.54 0.6617
2015-05-22 2015-03-31 13F GILEAD SCIENCES Common Stock 375558103 8,680 -187 -2.11 852 1.91 0.5442
2015-02-13 2014-12-31 13F GILEAD SCIENCES Common Stock 375558103 8,867 -420 -4.52 836 -15.47 0.5487
2014-11-24 2014-09-30 13F GILEAD SCIENCES Common Stock 375558103 9,287 -190 -2.00 989 25.83 0.6786
2014-07-24 2014-06-30 13F GILEAD SCIENCES Common Stock 375558103 9,477 -2,423 -20.36 786 -6.76 0.5453
2014-05-30 2014-03-31 13F GILEAD SCIENCES Common Stock 375558103 11,900 -250 -2.06 843 -7.57 0.6068
2014-05-28 2013-12-31 13F GILEAD SCIENCES Common Stock 375558103 12,150 -500 -3.95 912 14.72 0.6652
2013-11-18 2013-09-30 13F GILEAD SCIENCES Common Stock 375558103 12,650 -250 -1.94 795 20.27 0.6647
2013-08-19 2013-06-30 13F GILEAD SCIENCES Common Stock 375558103 12,900 -651 -4.80 661 -0.30 0.5803
2013-08-16 2013-03-31 13F GILEAD SCIENCES Common Stock 375558103 13,551 5,834 75.60 663 16.93 0.5779
2013-08-16 2012-12-31 13F GILEAD SCIENCES Common Stock 375558103 7,717 7,717 567 0.5410
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.