Gilead Sciences, Inc.
CH ˙ SWX ˙ US3755581036
SecurityCH:GILD / Gilead Sciences, Inc.
InstitutionFlagship Harbor Advisors, Llc
Latest Disclosed Ownership4,398 shares
Latest Disclosed Value $ 613,016
Flagship Harbor Advisors, Llc reports 42.70% increase in ownership of GILD / Gilead Sciences, Inc.

On April 28, 2026 - Flagship Harbor Advisors, Llc filed a 13F-HR form disclosing ownership of 4,398 shares of Gilead Sciences, Inc. (CH:GILD) valued at $613,016 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 21, 2026 disclosing 3,082 shares of Gilead Sciences, Inc.. This represents a change in shares of 42.70% 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)
2026-04-28 2026-03-31 13F GILEAD SCIENCES COM 375558103 4,398 1,316 42.70 613 62.17 0.0270
2026-01-21 2025-12-31 13F GILEAD SCIENCES Common Stock 375558103 3,082 -1,927 -38.47 378 -31.89 0.0179
2025-11-05 2025-09-30 13F GILEAD SCIENCES COM 375558103 5,009 429 9.37 556 9.47 0.0242
2025-08-04 2025-06-30 13F GILEAD SCIENCES COM 375558103 4,580 184 4.19 508 3.05 0.0241
2025-04-22 2025-03-31 13F GILEAD SCIENCES COM 375558103 4,396 193 4.59 493 26.80 0.0259
2025-01-21 2024-12-31 13F GILEAD SCIENCES COM 375558103 4,203 -83 -1.94 388 8.08 0.0204
2024-10-21 2024-09-30 13F GILEAD SCIENCES COM 375558103 4,286 -960 -18.30 359 0.00 0.0197
2025-12-02 2024-06-30 13F GILEAD SCIENCES COM 375558103 5,246 -413 -7.30 360 -13.29 0.0216
2024-04-16 2024-03-31 13F GILEAD SCIENCES COM 375558103 5,659 -2 -0.04 415 -9.61 0.0266
2024-01-10 2023-12-31 13F GILEAD SCIENCES COM 375558103 5,661 -235 -3.99 459 3.85 0.0333
2023-10-17 2023-09-30 13F GILEAD SCIENCES COM 375558103 5,896 -54 -0.91 442 -3.71 0.0368
2023-07-11 2023-06-30 13F GILEAD SCIENCES COM 375558103 5,950 -692 -10.42 459 -16.88 0.0379
2023-04-12 2023-03-31 13F GILEAD SCIENCES COM 375558103 6,642 684 11.48 551 7.83 0.0519
2023-01-13 2022-12-31 13F GILEAD SCIENCES COM 375558103 5,958 -344 -5.46 511 31.36 0.0524
2022-10-13 2022-09-30 13F GILEAD SCIENCES COM 375558103 6,302 1,274 25.34 389 25.08 0.0451
2022-07-13 2022-06-30 13F GILEAD SCIENCES COM 375558103 5,028 1,230 32.39 311 37.61 0.0349
2022-04-13 2022-03-31 13F GILEAD SCIENCES COM 375558103 3,798 -798 -17.36 226 -32.34 0.0218
2022-02-17 2021-12-31 13F/A-1 GILEAD SCIENCES COM 375558103 4,596 -84 -1.79 334 3.73 0.0316
2022-02-10 2021-12-31 13F GILEAD SCIENCES COM 375558103 4,596 -84 334 0.0316
2021-11-01 2021-09-30 13F GILEAD SCIENCES COM 375558103 4,680 0 0.00 322 0.00 0.0346
2021-07-26 2021-06-30 13F GILEAD SCIENCES COM 375558103 4,680 205 4.58 322 11.42 0.0345
2021-05-03 2021-03-31 13F GILEAD SCIENCES COM 375558103 4,475 -3,066 -40.66 289 -34.17 0.0328
2021-02-08 2020-12-31 13F GILEAD SCIENCES COM 375558103 7,541 -769 -9.25 439 -16.38 0.0544
2020-10-13 2020-09-30 13F GILEAD SCIENCES Common Stock 375558103 8,310 -2,688 -24.44 525 -37.94 0.0709
2020-07-31 2020-06-30 13F GILEAD SCIENCES Common Stock 375558103 10,998 529 5.05 846 8.05 0.1242
2020-05-12 2020-03-31 13F GILEAD SCIENCES Common Stock 375558103 10,469 2,382 29.45 783 48.86 0.1566
2020-02-14 2019-12-31 13F GILEAD SCIENCES Common Stock 375558103 8,087 -60 -0.74 526 1.94 0.0921
2019-10-22 2019-09-30 13F GILEAD SCIENCES Common Stock 375558103 8,147 266 3.38 516 -3.01 0.1011
2019-07-22 2019-06-30 13F GILEAD SCIENCES Common Stock 375558103 7,881 78 1.00 532 4.93 0.1104
2019-04-15 2019-03-31 13F GILEAD SCIENCES Common Stock 375558103 7,803 -308 -3.80 507 0.00 0.1041
2019-01-26 2018-12-31 13F GILEAD SCIENCES COM 375558103 8,111 1,186 17.13 507 -6.11 0.1232
2018-11-05 2018-09-30 13F GILEAD SCIENCES Common Stock 375558103 6,925 -115 -1.63 540 8.43 0.1001
2018-08-14 2018-06-30 13F GILEAD SCIENCES Common Stock 375558103 7,040 -522 -6.90 498 -9.45 0.0997
2018-04-23 2018-03-31 13F GILEAD SCIENCES COM 375558103 7,562 -340 -4.30 550 -5.34 0.1635
2018-01-24 2017-12-31 13F GILEAD SCIENCES COM 375558103 7,902 -850 -9.71 581 -18.51 0.1670
2017-10-23 2017-09-30 13F GILEAD SCIENCES COM 375558103 8,752 -750 -7.89 713 8.69 0.2313
2017-08-09 2017-06-30 13F GILEAD SCIENCES COM 375558103 9,502 335 3.65 656 7.54 0.2278
2017-05-16 2017-03-31 13F GILEAD SCIENCES COM 375558103 9,167 -309 -3.26 610 -9.36 0.2330
2017-05-15 2016-12-31 13F GILEAD SCIENCES COM 375558103 9,476 9,476 673 0.2904
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.