Gilead Sciences, Inc.
CH ˙ SWX ˙ US3755581036
SecurityCH:GILD / Gilead Sciences, Inc.
InstitutionSector Gamma As
Latest Disclosed Ownership53,247 shares
Latest Disclosed Value $ 7,421,034
Sector Gamma As reports 69.82% decrease in ownership of GILD / Gilead Sciences, Inc.

On May 7, 2026 - Sector Gamma As filed a 13F-HR form disclosing ownership of 53,247 shares of Gilead Sciences, Inc. (CH:GILD) valued at $7,421,034 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 12, 2026 disclosing 176,414 shares of Gilead Sciences, Inc.. This represents a change in shares of -69.82% 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 53,247 -123,167 -69.82 7,421 -65.73 1.7524
2026-02-12 2025-12-31 13F GILEAD SCIENCES COM 375558103 176,414 29,175 19.81 21,653 32.49 4.9356
2025-10-31 2025-09-30 13F GILEAD SCIENCES COM 375558103 147,239 20,239 15.94 16,344 16.07 4.0523
2025-07-31 2025-06-30 13F GILEAD SCIENCES COM 375558103 127,000 -13,000 -9.29 14,080 -10.24 4.6023
2025-05-13 2025-03-31 13F GILEAD SCIENCES COM 375558103 140,000 -57,500 -29.11 15,687 -14.01 5.0248
2025-02-11 2024-12-31 13F GILEAD SCIENCES COM 375558103 197,500 -91,663 -31.70 18,243 -24.75 6.2718
2024-11-13 2024-09-30 13F GILEAD SCIENCES COM 375558103 289,163 -131,000 -31.18 24,243 -15.90 7.3558
2024-08-09 2024-06-30 13F GILEAD SCIENCES COM 375558103 420,163 154,544 58.18 28,827 48.17 10.7694
2024-05-08 2024-03-31 13F GILEAD SCIENCES COM 375558103 265,619 -116,743 -30.53 19,457 -37.19 5.4840
2024-02-05 2023-12-31 13F GILEAD SCIENCES COM 375558103 382,362 -240,761 -38.64 30,975 -33.67 7.5158
2023-11-06 2023-09-30 13F GILEAD SCIENCES COM 375558103 623,123 21,756 3.62 46,697 0.75 11.9346
2023-08-09 2023-06-30 13F GILEAD SCIENCES COM 375558103 601,367 58,594 10.80 46,347 2.92 10.3701
2023-05-12 2023-03-31 13F GILEAD SCIENCES COM 375558103 542,773 -53,263 -8.94 45,034 -11.99 10.9177
2023-02-08 2022-12-31 13F/A-1 GILEAD SCIENCES COM 375558103 596,036 -287,070 -32.51 51,170 -6.08 11.6985
2023-02-07 2022-12-31 13F GILEAD SCIENCES COM 375558103 596,036 -287,070 51 11.6985
2022-11-09 2022-09-30 13F GILEAD SCIENCES COM 375558103 883,106 39,679 4.70 54,479 4.50 14.0401
2022-08-05 2022-06-30 13F GILEAD SCIENCES COM 375558103 843,427 161,889 23.75 52,132 28.67 11.6638
2022-05-06 2022-03-31 13F GILEAD SCIENCES COM 375558103 681,538 384,483 129.43 40,517 87.85 8.8040
2022-02-08 2021-12-31 13F GILEAD SCIENCES COM 375558103 297,055 -74,030 -19.95 21,569 -16.79 5.0701
2021-10-29 2021-09-30 13F GILEAD SCIENCES COM 375558103 371,085 -206,283 -35.73 25,920 -34.81 5.1707
2021-08-04 2021-06-30 13F GILEAD SCIENCES COM 375558103 577,368 -101,265 -14.92 39,758 -9.35 7.0416
2021-05-10 2021-03-31 13F GILEAD SCIENCES COM 375558103 678,633 -159,507 -19.03 43,860 -10.18 8.0330
2021-02-10 2020-12-31 13F GILEAD SCIENCES COM 375558103 838,140 361,046 75.68 48,830 61.97 9.2924
2020-11-09 2020-09-30 13F GILEAD SCIENCES COM 375558103 477,094 43,310 9.98 30,148 -9.67 6.8619
2020-08-07 2020-06-30 13F GILEAD SCIENCES COM 375558103 433,784 234,365 117.52 33,375 123.86 6.8894
2020-05-11 2020-03-31 13F GILEAD SCIENCES COM 375558103 199,419 -216,186 -52.02 14,909 -44.79 3.1788
2020-02-12 2019-12-31 13F GILEAD SCIENCES COM 375558103 415,605 -59,451 -12.51 27,006 -10.31 4.3251
2019-11-05 2019-09-30 13F GILEAD SCIENCES COM 375558103 475,056 30,000 6.74 30,109 0.14 5.0873
2019-07-31 2019-06-30 13F GILEAD SCIENCES COM 375558103 445,056 -133,681 -23.10 30,068 -20.08 4.8331
2019-05-13 2019-03-31 13F GILEAD SCIENCES COM 375558103 578,737 144,380 33.24 37,624 38.48 6.0338
2019-02-12 2018-12-31 13F GILEAD SCIENCES COM 375558103 434,357 111,170 34.40 27,169 8.88 4.5683
2018-11-15 2018-09-30 13F/A-1 GILEAD SCIENCES COM 375558103 323,187 31,587 10.83 24,953 20.80 3.9123
2018-11-08 2018-09-30 13F GILEAD SCIENCES COM 375558103 186,163 -105,437 14,374
2018-08-02 2018-06-30 13F GILEAD SCIENCES COM 375558103 291,600 188,100 181.74 20,657 164.73 3.4331
2018-05-09 2018-03-31 13F GILEAD SCIENCES COM 375558103 103,500 -254,390 -71.08 7,803 -69.57 1.4063
2018-02-12 2017-12-31 13F GILEAD SCIENCES COM 375558103 357,890 22,200 6.61 25,639 -5.73 4.3095
2017-11-07 2017-09-30 13F GILEAD SCIENCES COM 375558103 335,690 -212,700 -38.79 27,198 -29.93 4.1455
2017-08-14 2017-06-30 13F GILEAD SCIENCES COM 375558103 548,390 99,900 22.27 38,815 27.43 5.6431
2017-06-09 2017-03-31 13F/A-1 GILEAD SCIENCES COM 375558103 448,490 89,200 24.83 30,461 18.39 4.8445
2017-05-12 2017-03-31 13F GILEAD SCIENCES COM 375558103 448,490 30,461
2017-02-14 2016-12-31 13F GILEAD SCIENCES COM 375558103 359,290 -5,700 -1.56 25,729 -4.74 4.8405
2016-11-08 2016-09-30 13F GILEAD SCIENCES COM 375558103 364,990 364,990 27,009 5.0593
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.