GILEAD SCIENCES INC GILD
COM · Common Stock · CUSIP 375558103 · ISIN US3755581036
American biopharmaceutical company
- SectorHealth care
- IndustryBiological Products, (No Diagnostic Substances)
- HeadquartersFoster City, CA
- Founded1987
- Websitegilead.com
- FilingsSEC EDGAR
* Summed across managers. Shares that two managers' reports both contain – a subsidiary's holdings that its parent's report includes too, or a sub-adviser's in its client's – are counted once ($320.0m this quarter). Holder counts are more reliable. Shares outstanding: 1.2bn as of 2025-10-31, from the company's own SEC filing; the percentage can still exceed 100%: lent-out shares are counted by the lender and the buyer, and some reports overlap without saying so. Implied quarter-end price ≈ $111.01. Options: 50 managers hold calls ($1.0bn notional), 49 hold puts ($885.7m).
Trends to Q3 2025
Institutional holders
Managers reporting a position, each quarter
Numbers
| Quarter | Holders |
|---|---|
| Q3 2022 | 1,605 |
| Q4 2022 | 1,770 |
| Q1 2023 | 1,741 |
| Q2 2023 | 1,705 |
| Q3 2023 | 1,689 |
| Q4 2023 | 1,781 |
| Q1 2024 | 1,727 |
| Q2 2024 | 1,686 |
| Q3 2024 | 1,723 |
| Q4 2024 | 1,889 |
| Q1 2025 | 2,020 |
| Q2 2025 | 2,026 |
| Q3 2025 | 2,033 |
Buyers vs sellers
Managers adding to or starting a position, vs cutting or selling out
Numbers
| Quarter | Bought or added | Cut or sold out |
|---|---|---|
| Q4 2023 | 759 | 799 |
| Q1 2024 | 751 | 907 |
| Q2 2024 | 755 | 841 |
| Q3 2024 | 781 | 813 |
| Q4 2024 | 812 | 812 |
| Q1 2025 | 934 | 941 |
| Q2 2025 | 1,004 | 886 |
| Q3 2025 | 976 | 853 |
Calls vs puts
Options held, notional value, last 4 quarters. P/C = puts ÷ calls
Numbers
| Quarter | Calls | Puts | P/C |
|---|---|---|---|
| Q4 2024 | $864.5m | $959.0m | 1.11 |
| Q1 2025 | $1.2bn | $1.2bn | 1.00 |
| Q2 2025 | $1.5bn | $1.1bn | 0.73 |
| Q3 2025 | $1.0bn | $885.7m | 0.86 |
Biggest buyers
| JPMORGAN CHASE & CO | Added | +23.2m |
| PRICE T ROWE ASSOCIATES INC /MD/ | Added | +2.9m |
| DEUTSCHE BANK AG\ | Added | +2.8m |
| Assenagon Asset Management S.A. | Added | +2.2m |
| FIRST TRUST ADVISORS LP | Added | +1.9m |
| Invesco Ltd. | Added | +1.6m |
| BlackRock, Inc. | Added | +1.4m |
| DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main | Added | +1.3m |
| LOS ANGELES CAPITAL MANAGEMENT LLC | Added | +1.2m |
| BANK OF AMERICA CORP /DE/ | Added | +1.2m |
Biggest sellers
| WELLINGTON MANAGEMENT GROUP LLP | Reduced | -11.9m |
| ROYAL BANK OF CANADA | Reduced | -6.5m |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | Reduced | -3.6m |
| Amundi | Reduced | -2.9m |
| Holocene Advisors, LP | Reduced | -1.6m |
| AXA S.A. | Sold out | -1.6m |
| Capital World Investors | Reduced | -1.1m |
| Capital Research Global Investors | Reduced | -1.1m |
| BARCLAYS PLC | Reduced | -923.5k |
| CITIGROUP INC | Reduced | -797.4k |
Biggest calls
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Reduced | $209.8m1.9m shares |
| CITADEL ADVISORS LLC | Reduced | $127.3m1.1m shares |
| MASTERS CAPITAL MANAGEMENT LLC | New | $111.0m1.0m shares |
| JANE STREET GROUP, LLC | Reduced | $61.2m551.8k shares |
| JPMORGAN CHASE & CO | Added | $54.3m489.0k shares |
| MILLENNIUM MANAGEMENT LLC | Reduced | $47.2m424.8k shares |
| Hudson Bay Capital Management LP | Added | $46.1m415.0k shares |
| WOLVERINE TRADING, LLC | Reduced | $38.3m339.8k shares |
| UBS Group AG | Added | $34.7m313.0k shares |
| SIMPLEX TRADING, LLC | Reduced | $30.1m271.1k shares |
Biggest puts
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Reduced | $193.2m1.7m shares |
| CITADEL ADVISORS LLC | Reduced | $136.6m1.2m shares |
| JPMORGAN CHASE & CO | Added | $60.6m546.2k shares |
| MILLENNIUM MANAGEMENT LLC | Reduced | $45.3m408.1k shares |
| UBS Group AG | Added | $41.4m373.3k shares |
| Hudson Bay Capital Management LP | Added | $35.0m315.0k shares |
| BARCLAYS PLC | Reduced | $31.5m284.1k shares |
| SIMPLEX TRADING, LLC | Reduced | $24.0m216.2k shares |
| IMC-Chicago, LLC | Reduced | $22.6m203.6k shares |
| CAPITAL FUND MANAGEMENT S.A. | Reduced | $20.5m184.4k shares |
Options at notional value: the value of the shares the contracts control, as filers report them, not what the options cost. Not included in the holders, shares or buying above.
Major shareholders (over 5%)
Anyone who owns more than 5% of a class of the company's shares has to say so: on Schedule 13D if they may try to influence or control the company, on 13G if they're a passive investor, and update it as the stake changes. Each holder's latest filing, from 19 Dec 2024 on; percentages are of the share class, as the holder worked them out.
| Holder | Stake |
|---|---|
| BlackRock, Inc. 13G · institution filed 2025-04-24 | 8.2% |
| VANGUARD CAPITAL MANAGEMENT LLC 13G · institution new · filed 2026-04-29 | 7.5% |
| FMR LLC 13G · institution new · filed 2026-02-05 | 5.3% |
Fell to 5% or below in the last year: VANGUARD GROUP INC (0.0%, 2026-03-26; now reported by VANGUARD CAPITAL MANAGEMENT LLC)
Insider purchases and sales in Q3 2025
Shares bought or sold by the company's own officers, directors and 10% owners, in the open market or privately, as they reported to the SEC on Form 4 (due within two business days of the trade). Grants, option exercises, shares withheld for tax and gifts aren't included.
Officers and directors buying vs selling
Number of people, by quarter (10% owners not included)
Numbers
| Quarter | Buying | Bought | Selling | Sold | Sold under a plan |
|---|---|---|---|---|---|
| Q4 2023 | 0 | — | 1 | $400.0k | $400.0k |
| Q1 2024 | 0 | — | 3 | $1.9m | $1.9m |
| Q2 2024 | 0 | — | 1 | $145.9k | $145.9k |
| Q3 2024 | 0 | — | 2 | $5.5m | $5.5m |
| Q4 2024 | 0 | — | 4 | $42.5m | $41.9m |
| Q1 2025 | 0 | — | 1 | $30.8m | $30.8m |
| Q2 2025 | 0 | — | 3 | $6.3m | $6.3m |
| Q3 2025 | 0 | — | 4 | $8.8m | $8.8m |
| Date | Insider | Trade | Value |
|---|---|---|---|
| 2025-09-29 | O'Day Daniel Patrick Chairman & CEO, director | Sold plan | $1.1m10.0k shares |
| 2025-09-15 | Mercier Johanna Chief Commercial Officer | Sold plan | $340.7k3.0k shares |
| 2025-09-15 | Dickinson Andrew D Chief Financial Officer | Sold plan | $283.9k2.5k shares |
| 2025-08-28 | O'Day Daniel Patrick Chairman & CEO, director | Sold plan | $1.1m10.0k shares |
| 2025-08-15 | Mercier Johanna Chief Commercial Officer | Sold plan | $3.3m28.0k shares |
| 2025-08-15 | Dickinson Andrew D Chief Financial Officer | Sold plan | $296.3k2.5k shares |
| 2025-07-28 | O'Day Daniel Patrick Chairman & CEO, director | Sold plan | $1.1m10.0k shares |
| 2025-07-15 | Mercier Johanna Chief Commercial Officer | Sold plan | $333.1k3.0k shares |
| 2025-07-15 | Dickinson Andrew D Chief Financial Officer | Sold plan | $277.6k2.5k shares |
| 2025-07-14 | Bluestone Jeffrey Director | Sold plan | $548.7k5.0k shares |
Their holding: how much the trade added to or took from the insider's holding (direct, or the trust or fund named). The same trade is sometimes reported by more than one insider, such as a fund and the director who represents it; totals count it once. A value is left blank where the reported price is far from the market price (usually a typo).
Holders, Q3 2025
| Manager | Shares | Change |
|---|---|---|
| VANGUARD GROUP INC 0.20% of their portfolio | 119.0m $13.2bn | Reduced -380.6k |
| BlackRock, Inc. 0.23% of their portfolio | 116.3m $12.9bn | Added +1.4m |
| FMR LLC 0.35% of their portfolio | 60.3m $6.7bn | Added +360.9k |
| STATE STREET CORP 0.23% of their portfolio | 59.1m $6.6bn | Reduced -98.9k |
| Capital World Investors 0.69% of their portfolio | 45.2m $5.0bn | Reduced -1.1m |
| JPMORGAN CHASE & CO 0.15% of their portfolio | 42.3m $4.7bn | Added +23.2m |
| Dodge & Cox 1.80% of their portfolio | 30.1m $3.3bn | Reduced -685.2k |
| Capital Research Global Investors 0.63% of their portfolio | 30.0m $3.3bn | Reduced -1.1m |
| GEODE CAPITAL MANAGEMENT, LLC 0.21% of their portfolio | 29.9m $3.3bn | Added +721.3k |
| PRICE T ROWE ASSOCIATES INC /MD/ 0.31% of their portfolio | 26.5m $2.9bn | Added +2.9m |
| WELLINGTON MANAGEMENT GROUP LLP 0.50% of their portfolio | 25.6m $2.8bn | Reduced -11.9m |
| MORGAN STANLEY 0.16% of their portfolio | 23.7m $2.6bn | Added +899.7k |
| BANK OF AMERICA CORP /DE/ 0.17% of their portfolio | 20.1m $2.2bn | Added +1.2m |
| Invesco Ltd. 0.26% of their portfolio | 15.1m $1.7bn | Added +1.6m |
| NORTHERN TRUST CORP 0.20% of their portfolio | 14.3m $1.6bn | Reduced -92.7k |
| Bank of New York Mellon Corp 0.28% of their portfolio | 14.2m $1.6bn | Added +516.4k |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 0.31% of their portfolio | 13.0m $1.4bn | Reduced -3.6m |
| Legal & General Group Plc 0.25% of their portfolio | 10.2m $1.1bn | Added +414.5k |
| DIMENSIONAL FUND ADVISORS LP 0.23% of their portfolio | 9.6m $1.1bn | Reduced -566.8k |
| DEUTSCHE BANK AG\ 0.33% of their portfolio | 9.0m $994.0m | Added +2.8m |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.14% of their portfolio | 7.9m $880.3m | Reduced -69.2k |
| Amundi 0.28% of their portfolio | 7.6m $861.4m | Reduced -2.9m |
| ROYAL BANK OF CANADA 0.14% of their portfolio | 7.3m $813.4m | Reduced -6.5m |
| AMERIPRISE FINANCIAL INC 0.18% of their portfolio | 7.1m $793.5m | Added +400.0k |
| GOLDMAN SACHS GROUP INC 0.11% of their portfolio | 7.1m $790.5m | Added +879.4k |
| WELLS FARGO & COMPANY/MN 0.15% of their portfolio | 6.5m $716.2m | Reduced -1.2k |
| Nuveen, LLC 0.17% of their portfolio | 5.9m $660.0m | Added +91.5k |
| ALLIANCEBERNSTEIN L.P. 0.21% of their portfolio | 5.9m $653.4m | Reduced -258.2k |
| Allianz Asset Management GmbH 0.79% of their portfolio | 5.8m $640.8m | Reduced -451.1k |
| RENAISSANCE TECHNOLOGIES LLC 0.80% of their portfolio | 5.5m $606.4m | Reduced -203.6k |
| CITADEL ADVISORS LLC 0.46% of their portfolio | 5.2m $578.1m | Reduced -262.9k |
| BARCLAYS PLC 0.21% of their portfolio | 5.2m $574.2m | Reduced -923.5k |
| UBS Group AG 0.11% of their portfolio | 5.1m $571.4m | Added +586.9k |
| Qube Research & Technologies Ltd 0.76% of their portfolio | 4.8m $536.0m | Added +70.0k |
| NORDEA INVESTMENT MANAGEMENT AB 0.43% of their portfolio | 4.4m $494.0m | Added +455.7k |
| LSV ASSET MANAGEMENT 1.05% of their portfolio | 4.3m $477.3m | Reduced -218.1k |
| California Public Employees Retirement System 0.27% of their portfolio | 4.0m $447.8m | Reduced -141.4k |
| HSBC HOLDINGS PLC 0.26% of their portfolio | 3.9m $440.2m | Added +586.1k |
| LOS ANGELES CAPITAL MANAGEMENT LLC 1.45% of their portfolio | 3.8m $426.8m | Added +1.2m |
| AMERICAN CENTURY COMPANIES INC 0.21% of their portfolio | 3.8m $422.4m | Added +416.4k |
| Robeco Institutional Asset Management B.V. 0.61% of their portfolio | 3.8m $422.0m | Added +59.3k |
| Pacer Advisors, Inc. 1.02% of their portfolio | 3.6m $398.6m | Reduced -529.0k |
| Swiss National Bank 0.23% of their portfolio | 3.6m $398.0m | Reduced -188.1k |
| Assenagon Asset Management S.A. 0.57% of their portfolio | 3.5m $387.3m | Added +2.2m |
| FRANKLIN RESOURCES INC 0.10% of their portfolio | 3.5m $384.6m | Reduced -29.1k |
| TD Asset Management Inc 0.31% of their portfolio | 3.4m $380.2m | Added +4.3k |
| National Pension Service 0.29% of their portfolio | 3.4m $374.1m | Added +109.2k |
| Sumitomo Mitsui Trust Group, Inc. 0.21% of their portfolio | 3.3m $369.6m | Added +27.2k |
| FIRST TRUST ADVISORS LP 0.26% of their portfolio | 3.1m $342.9m | Added +1.9m |
| BANK OF MONTREAL /CAN/ 0.15% of their portfolio | 3.1m $342.2m | Added +175.2k |
| AustralianSuper Pty Ltd 1.59% of their portfolio | 3.0m $336.8m | Reduced -344.0k |
| KBC Group NV 0.79% of their portfolio | 3.0m $328.7m | Added +619.2k |
| VICTORY CAPITAL MANAGEMENT INC 0.18% of their portfolio | 2.8m $315.4m | Added +51.0k |
| Pictet Asset Management Holding SA 0.29% of their portfolio | 2.7m $299.0m | Added +46.3k |
| Ensign Peak Advisors, Inc 0.48% of their portfolio | 2.7m $295.0m | Added +359.7k |
| FEDERATED HERMES, INC. 0.52% of their portfolio | 2.7m $294.8m | Reduced -324.8k |
| Holocene Advisors, LP 0.67% of their portfolio | 2.6m $290.5m | Reduced -1.6m |
| Mitsubishi UFJ Asset Management Co., Ltd. 0.21% of their portfolio | 2.6m $287.5m | Added +108.3k |
| Swedbank AB 0.28% of their portfolio | 2.5m $273.3m | Added +58.4k |
| AQR CAPITAL MANAGEMENT LLC 0.17% of their portfolio | 2.4m $264.1m | Reduced -91.3k |
| PRUDENTIAL FINANCIAL INC 0.31% of their portfolio | 2.4m $261.1m | Added +644.8k |
| RHUMBLINE ADVISERS 0.21% of their portfolio | 2.3m $258.4m | Reduced -15.6k |
| Skandinaviska Enskilda Banken AB (publ) 1.02% of their portfolio | 2.3m $253.2m | Reduced -72.2k |
| CANADA LIFE ASSURANCE Co 0.36% of their portfolio | 2.3m $254.0m | Added +28.3k |
| CANADA PENSION PLAN INVESTMENT BOARD 0.17% of their portfolio | 2.2m $248.0m | Added +272.3k |
| MACKENZIE FINANCIAL CORP 0.28% of their portfolio | 2.1m $229.1m | Reduced -464.1k |
| MANUFACTURERS LIFE INSURANCE COMPANY, THE 0.19% of their portfolio | 2.1m $228.8m | Reduced -563.0k |
| VOYA INVESTMENT MANAGEMENT LLC 0.23% of their portfolio | 2.1m $227.6m | Added +426.7k |
| SCHRODER INVESTMENT MANAGEMENT GROUP 0.18% of their portfolio | 2.0m $230.1m | Reduced -48.2k |
| DekaBank Deutsche Girozentrale 0.38% of their portfolio | 2.0m $228.6m | Unchanged |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM 0.23% of their portfolio | 2.0m $221.1m | Added +8.0k |
| CAPTRUST FINANCIAL ADVISORS 0.43% of their portfolio | 1.9m $211.8m | Added +29.5k |
| MARSHALL WACE, LLP 0.23% of their portfolio | 1.9m $211.1m | Reduced -49.3k |
| DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main 0.19% of their portfolio | 1.9m $206.9m | Added +1.3m |
| ENVESTNET ASSET MANAGEMENT INC 0.06% of their portfolio | 1.8m $203.0m | Reduced -19.6k |
| RAYMOND JAMES FINANCIAL INC 0.06% of their portfolio | 1.8m $201.6m | Added +51.2k |
| BNP PARIBAS FINANCIAL MARKETS 0.16% of their portfolio | 1.8m $200.9m | Reduced -205.5k |
| Man Group plc 0.38% of their portfolio | 1.8m $195.0m | Added +181.6k |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. 0.48% of their portfolio | 1.7m $186.8m | Reduced -707.5k |
| HighTower Advisors, LLC 0.21% of their portfolio | 1.7m $186.0m | Added +13.4k |
| AXA Investment Managers S.A. 0.50% of their portfolio | 1.7m $184.1m | First filing |
| JANUS HENDERSON GROUP PLC 0.08% of their portfolio | 1.7m $184.1m | Added +526.9k |
| Candriam S.C.A. 0.94% of their portfolio | 1.6m $179.9m | Added +110.6k |
| Zurcher Kantonalbank (Zurich Cantonalbank) 0.41% of their portfolio | 1.6m $176.9m | Added +9.7k |
| ProShare Advisors LLC 0.37% of their portfolio | 1.6m $176.9m | Reduced -352.4k |
| MACQUARIE GROUP LTD 0.21% of their portfolio | 1.6m $176.3m | Added +146.3k |
| NEUBERGER BERMAN GROUP LLC 0.13% of their portfolio | 1.6m $175.9m | Reduced -252.6k |
| PANAGORA ASSET MANAGEMENT INC 0.70% of their portfolio | 1.6m $173.9m | Reduced -20.1k |
| NEW YORK STATE COMMON RETIREMENT FUND 0.21% of their portfolio | 1.5m $163.5m | Reduced -89.4k |
| NATIONAL BANK OF CANADA /FI/ 0.18% of their portfolio | 1.5m $161.1m | Added +164.2k |
| CITIGROUP INC 0.11% of their portfolio | 1.4m $160.2m | Reduced -797.4k |
| Railway Pension Investments Ltd 2.13% of their portfolio | 1.4m $157.1m | Added +42.2k |
| PRINCIPAL FINANCIAL GROUP INC 0.08% of their portfolio | 1.4m $153.4m | Reduced -18.5k |
| ADAGE CAPITAL PARTNERS GP, L.L.C. 0.24% of their portfolio | 1.4m $150.4m | Reduced -98.0k |
| Korea Investment CORP 0.31% of their portfolio | 1.4m $150.0m | Added +209.2k |
| Aberdeen Group plc 0.24% of their portfolio | 1.3m $151.6m | Reduced -160.9k |
| Mitsubishi UFJ Trust & Banking Corp 0.33% of their portfolio | 1.3m $148.7m | Added +21.5k |
| STIFEL FINANCIAL CORP 0.14% of their portfolio | 1.3m $148.2m | Reduced -129.3k |
| VIRGINIA RETIREMENT SYSTEMS ET Al 0.92% of their portfolio | 1.3m $142.2m | Added +3.9k |
| Clearbridge Investments, LLC 0.11% of their portfolio | 1.3m $141.3m | Reduced -35.4k |