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 ($859.5m this quarter). Holder counts are more reliable. Shares outstanding: 1.2bn as of 2026-04-30, 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 ≈ $139.14. Options: 48 managers hold calls ($1.4bn notional), 44 hold puts ($804.2m).
Trends to Q1 2026
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 |
| Q4 2025 | 2,218 |
| Q1 2026 | 2,324 |
Buyers vs sellers
Managers adding to or starting a position, vs cutting or selling out
Numbers
| Quarter | Bought or added | Cut or sold out |
|---|---|---|
| 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 |
| Q4 2025 | 1,067 | 852 |
| Q1 2026 | 1,066 | 1,000 |
Calls vs puts
Options held, notional value, last 4 quarters. P/C = puts ÷ calls
Numbers
| Quarter | Calls | Puts | P/C |
|---|---|---|---|
| Q2 2025 | $1.5bn | $1.1bn | 0.73 |
| Q3 2025 | $1.0bn | $885.7m | 0.86 |
| Q4 2025 | $923.4m | $851.8m | 0.92 |
| Q1 2026 | $1.4bn | $804.2m | 0.58 |
Biggest buyers
| JPMORGAN CHASE & CO | Added | +11.0m |
| FMR LLC | Added | +6.3m |
| GOLDMAN SACHS GROUP INC | Added | +2.3m |
| MASSACHUSETTS FINANCIAL SERVICES CO /MA/ | Added | +2.1m |
| Capital Research Global Investors | Added | +1.8m |
| FIRST TRUST ADVISORS LP | Added | +1.7m |
| Nuveen, LLC | Added | +1.5m |
| MARSHALL WACE, LLP | Added | +1.5m |
| Bellevue Group AG | Added | +1.1m |
| OMERS ADMINISTRATION Corp | Added | +1.1m |
Biggest sellers
| HSBC HOLDINGS PLC | Reduced | -4.4m |
| BlackRock, Inc. | Reduced | -4.2m |
| BARCLAYS PLC | Reduced | -3.8m |
| BANK OF AMERICA CORP /DE/ | Reduced | -3.1m |
| LOS ANGELES CAPITAL MANAGEMENT LLC | Reduced | -3.1m |
| Qube Research & Technologies Ltd | Reduced | -2.4m |
| WELLINGTON MANAGEMENT GROUP LLP | Reduced | -2.4m |
| Skandinaviska Enskilda Banken AB (publ) | Reduced | -2.1m |
| Dodge & Cox | Reduced | -2.0m |
| Invesco Ltd. | Reduced | -1.9m |
Biggest calls
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Added | $300.6m2.2m shares |
| CITADEL ADVISORS LLC | Added | $206.4m1.5m shares |
| JANE STREET GROUP, LLC | Added | $148.5m1.1m shares |
| MILLENNIUM MANAGEMENT LLC | Added | $87.1m625.2k shares |
| IMC-Chicago, LLC | Added | $58.7m421.4k shares |
| GOLDMAN SACHS GROUP INC | Added | $49.4m354.5k shares |
| SIMPLEX TRADING, LLC | Added | $45.1m323.9k shares |
| BARCLAYS PLC | Added | $41.9m300.5k shares |
| NATIXIS | New | $34.8m250.0k shares |
| GROUP ONE TRADING LLC | Reduced | $30.6m219.7k shares |
Biggest puts
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Added | $267.6m1.9m shares |
| CITADEL ADVISORS LLC | Reduced | $83.7m600.3k shares |
| MILLENNIUM MANAGEMENT LLC | Added | $80.0m574.1k shares |
| BARCLAYS PLC | Reduced | $35.4m254.1k shares |
| JANE STREET GROUP, LLC | Added | $29.6m212.2k shares |
| ADAPT Investment Managers SA | New | $27.9m200.0k shares |
| Alphadyne Asset Management LP | Added | $26.4m189.1k shares |
| JPMORGAN CHASE & CO | Reduced | $23.5m172.4k shares |
| IMC-Chicago, LLC | Reduced | $19.8m142.3k shares |
| CAPSTONE INVESTMENT ADVISORS, LLC | Added | $18.6m133.7k 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 Q1 2026
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 |
|---|---|---|---|---|---|
| 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 |
| Q4 2025 | 0 | — | 6 | $16.5m | $15.9m |
| Q1 2026 | 0 | — | 4 | $43.4m | $43.4m |
| Date | Insider | Trade | Value |
|---|---|---|---|
| 2026-03-27 | O'Day Daniel Patrick Chairman & CEO, director | Sold plan | $1.4m10.0k shares |
| 2026-03-16 | Dickinson Andrew D Chief Financial Officer | Sold plan | $432.7k3.0k shares |
| 2026-03-16 | Mercier Johanna Chief Comm & Corp Aff Officer | Sold plan | $432.7k3.0k shares |
| 2026-02-27 | O'Day Daniel Patrick Chairman & CEO, director | Sold plan | $1.4m10.0k shares |
| 2026-02-17 | Mercier Johanna Chief Comm & Corp Aff Officer | Sold plan | $4.3m28.0k shares |
| 2026-02-17 | Dickinson Andrew D Chief Financial Officer | Sold plan | $463.3k3.0k shares |
| 2026-02-05 | O'Day Daniel Patrick Chairman & CEO, director | Sold plan | $17.3m115.6k shares |
| 2026-01-28 | O'Day Daniel Patrick Chairman & CEO, director | Sold plan | $1.4m10.0k shares |
| 2026-01-23 | O'Day Daniel Patrick Chairman & CEO, director | Sold plan | $15.6m115.6k shares |
| 2026-01-20 | Bluestone Jeffrey Director | Sold plan | $617.5k5.0k shares |
| 2026-01-15 | Dickinson Andrew D Chief Financial Officer | Sold plan | $372.9k3.0k shares |
| 2026-01-15 | Mercier Johanna Chief Commercial Officer | Sold plan | $372.9k3.0k 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, Q1 2026
| Manager | Shares | Change |
|---|---|---|
| BlackRock, Inc. 0.29% of their portfolio | 119.0m $16.6bn | Reduced -4.2m |
| VANGUARD CAPITAL MANAGEMENT LLC 0.28% of their portfolio | 80.7m $11.2bn | First filing |
| FMR LLC 0.53% of their portfolio | 71.9m $10.0bn | Added +6.3m |
| STATE STREET CORP 0.29% of their portfolio | 59.9m $8.3bn | Reduced -381.9k |
| Invesco Ltd. 0.57% of their portfolio | 41.6m $5.8bn | Reduced -1.9m |
| Capital World Investors 0.78% of their portfolio | 41.3m $5.8bn | Reduced -1.6m |
| VANGUARD PORTFOLIO MANAGEMENT LLC 0.26% of their portfolio | 35.1m $4.9bn | First filing |
| JPMORGAN CHASE & CO 0.31% of their portfolio | 34.0m $4.6bn | Added +11.0m |
| GEODE CAPITAL MANAGEMENT, LLC 0.26% of their portfolio | 29.7m $4.1bn | Added +30.1k |
| Capital Research Global Investors 0.59% of their portfolio | 27.1m $3.8bn | Added +1.8m |
| PRICE T ROWE ASSOCIATES INC /MD/ 0.42% of their portfolio | 26.2m $3.7bn | Reduced -1.5m |
| Dodge & Cox 1.86% of their portfolio | 24.3m $3.4bn | Reduced -2.0m |
| MORGAN STANLEY 0.20% of their portfolio | 23.3m $3.2bn | Reduced -213.4k |
| BANK OF AMERICA CORP /DE/ 0.20% of their portfolio | 20.0m $2.8bn | Reduced -3.1m |
| Bank of New York Mellon Corp 0.39% of their portfolio | 15.1m $2.1bn | Reduced -162.2k |
| NORTHERN TRUST CORP 0.25% of their portfolio | 13.8m $1.9bn | Reduced -237.6k |
| WELLINGTON MANAGEMENT GROUP LLP 0.35% of their portfolio | 13.5m $1.9bn | Reduced -2.4m |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 0.38% of their portfolio | 13.2m $1.8bn | Added +198.3k |
| GOLDMAN SACHS GROUP INC 0.20% of their portfolio | 11.1m $1.5bn | Added +2.3m |
| Amundi 0.40% of their portfolio | 10.5m $1.5bn | Added +1.0m |
| Legal & General Group Plc 0.34% of their portfolio | 10.5m $1.5bn | Added +147.3k |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.17% of their portfolio | 8.2m $1.1bn | Added +175.0k |
| Nuveen, LLC 0.30% of their portfolio | 7.8m $1.1bn | Added +1.5m |
| DIMENSIONAL FUND ADVISORS LP 0.22% of their portfolio | 7.7m $1.1bn | Reduced -1.1m |
| AMERIPRISE FINANCIAL INC 0.24% of their portfolio | 7.3m $1.0bn | Reduced -513.2k |
| VANGUARD FIDUCIARY TRUST CO 0.25% of their portfolio | 7.0m $980.1m | First filing |
| WELLS FARGO & COMPANY/MN 0.18% of their portfolio | 6.6m $923.8m | Reduced -20.7k |
| MASSACHUSETTS FINANCIAL SERVICES CO /MA/ 0.31% of their portfolio | 6.3m $909.7m | Added +2.1m |
| DEUTSCHE BANK AG\ 0.29% of their portfolio | 6.2m $867.2m | Added +28.6k |
| ALLIANCEBERNSTEIN L.P. 0.23% of their portfolio | 5.7m $703.2m | Reduced -167.1k |
| ROYAL BANK OF CANADA 0.15% of their portfolio | 5.6m $787.0m | Reduced -265.8k |
| BARCLAYS PLC 0.26% of their portfolio | 5.3m $736.2m | Reduced -3.8m |
| NORDEA INVESTMENT MANAGEMENT AB 0.68% of their portfolio | 5.3m $726.6m | Added +121.7k |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. 0.72% of their portfolio | 4.4m $616.3m | Added +751.4k |
| Boston Partners 0.62% of their portfolio | 4.3m $593.1m | Added +34.6k |
| CITADEL ADVISORS LLC 0.39% of their portfolio | 4.0m $555.0m | Added +94.7k |
| AMERICAN CENTURY COMPANIES INC 0.29% of their portfolio | 4.0m $554.5m | Reduced -315.1k |
| UBS Group AG 0.10% of their portfolio | 3.9m $547.8m | Reduced -849.5k |
| Swiss National Bank 0.29% of their portfolio | 3.6m $507.4m | Added +240.8k |
| California Public Employees Retirement System 0.31% of their portfolio | 3.6m $499.6m | Reduced -116.8k |
| BANK OF MONTREAL /CAN/ 0.20% of their portfolio | 3.5m $494.7m | Added +80.4k |
| FRANKLIN RESOURCES INC 0.12% of their portfolio | 3.5m $485.6m | Added +188.5k |
| NOMURA ASSET MANAGEMENT INTERNATIONAL INC. 0.82% of their portfolio | 3.4m $480.4m | Reduced -112.5k |
| TD Asset Management Inc 0.38% of their portfolio | 3.4m $470.0m | Added +14.3k |
| Robeco Institutional Asset Management B.V. 0.67% of their portfolio | 3.4m $467.5m | Reduced -339.2k |
| HSBC HOLDINGS PLC 0.26% of their portfolio | 3.2m $444.1m | Reduced -4.4m |
| FIRST TRUST ADVISORS LP 0.31% of their portfolio | 3.1m $436.2m | Added +1.7m |
| Allianz Asset Management GmbH 0.50% of their portfolio | 3.1m $431.2m | Reduced -936.3k |
| VOYA INVESTMENT MANAGEMENT LLC 0.44% of their portfolio | 3.1m $425.5m | Added +305.2k |
| National Pension Service 0.32% of their portfolio | 3.0m $421.1m | Added +30.8k |
| Pacer Advisors, Inc. 1.18% of their portfolio | 2.9m $410.5m | Reduced -436.6k |
| Sumitomo Mitsui Trust Group, Inc. 0.26% of their portfolio | 2.9m $408.5m | Reduced -337.9k |
| Mitsubishi UFJ Asset Management Co., Ltd. 0.27% of their portfolio | 2.9m $407.4m | Added +203.9k |
| LSV ASSET MANAGEMENT 0.87% of their portfolio | 2.9m $403.1m | Reduced -1.3m |
| Vanguard Global Advisers, LLC 0.21% of their portfolio | 2.8m $385.8m | First filing |
| KBC Group NV 0.94% of their portfolio | 2.7m $373.5m | Reduced -565.0k |
| Holocene Advisors, LP 0.88% of their portfolio | 2.6m $364.0m | Reduced -1.6m |
| Pictet Asset Management Holding SA 0.38% of their portfolio | 2.6m $356.9m | Added +218.3k |
| RAYMOND JAMES FINANCIAL INC 0.11% of their portfolio | 2.6m $354.9m | Reduced -173.3k |
| VANGUARD ASSET MANAGEMENT, Ltd 0.30% of their portfolio | 2.5m $348.9m | First filing |
| Swedbank AB 0.35% of their portfolio | 2.4m $334.2m | Reduced -107.2k |
| Ensign Peak Advisors, Inc 0.61% of their portfolio | 2.3m $325.9m | Added +401.9k |
| MARSHALL WACE, LLP 0.34% of their portfolio | 2.3m $322.0m | Added +1.5m |
| CITIGROUP INC 0.20% of their portfolio | 2.3m $320.6m | Added +524.0k |
| RHUMBLINE ADVISERS 0.27% of their portfolio | 2.2m $311.7m | Reduced -34.8k |
| VICTORY CAPITAL MANAGEMENT INC 0.19% of their portfolio | 2.2m $301.2m | Reduced -570.2k |
| RENAISSANCE TECHNOLOGIES LLC 0.47% of their portfolio | 2.2m $300.0m | Reduced -636.2k |
| DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main 0.27% of their portfolio | 2.1m $295.9m | Added +80.2k |
| DekaBank Deutsche Girozentrale 0.47% of their portfolio | 2.0m $286.1m | Unchanged |
| CANADA PENSION PLAN INVESTMENT BOARD 0.18% of their portfolio | 2.0m $280.0m | Reduced -40.0k |
| LORD, ABBETT & CO. LLC 0.91% of their portfolio | 2.0m $278.8m | Added +791.1k |
| JANUS HENDERSON GROUP PLC 0.13% of their portfolio | 2.0m $274.9m | Added +110.5k |
| BNP PARIBAS FINANCIAL MARKETS 0.18% of their portfolio | 2.0m $274.1m | Reduced -965.5k |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM 0.28% of their portfolio | 1.9m $266.8m | Reduced -41.0k |
| ENVESTNET ASSET MANAGEMENT INC 0.07% of their portfolio | 1.9m $259.1m | Added +73.3k |
| ProShare Advisors LLC 0.37% of their portfolio | 1.8m $252.4m | Reduced -406.1k |
| CAPTRUST FINANCIAL ADVISORS 0.43% of their portfolio | 1.8m $246.9m | Reduced -164.6k |
| PRINCIPAL FINANCIAL GROUP INC 0.13% of their portfolio | 1.8m $246.7m | Added +7.9k |
| CANADA LIFE ASSURANCE Co 0.42% of their portfolio | 1.7m $234.2m | Reduced -8.9k |
| Candriam S.C.A. 1.21% of their portfolio | 1.7m $232.8m | Reduced -161.9k |
| Zurcher Kantonalbank (Zurich Cantonalbank) 0.49% of their portfolio | 1.6m $226.4m | Added +11.0k |
| NATIONAL BANK OF CANADA /FI/ 0.23% of their portfolio | 1.6m $225.0m | Reduced -285.6k |
| SCHRODER INVESTMENT MANAGEMENT GROUP 0.18% of their portfolio | 1.6m $221.0m | Reduced -128.5k |
| Caisse de depot et placement du Quebec 0.34% of their portfolio | 1.5m $215.2m | Added +594.8k |
| HighTower Advisors, LLC 0.21% of their portfolio | 1.5m $202.1m | Reduced -211.2k |
| NEW YORK STATE COMMON RETIREMENT FUND 0.28% of their portfolio | 1.4m $200.8m | Added +8.8k |
| AustralianSuper Pty Ltd 1.04% of their portfolio | 1.4m $200.2m | Reduced -1.1m |
| Universal- Beteiligungs- und Servicegesellschaft mbH 0.31% of their portfolio | 1.3m $182.9m | Added +19.7k |
| NEUBERGER BERMAN GROUP LLC 0.14% of their portfolio | 1.3m $185.7m | Reduced -28.4k |
| Railway Pension Investments Ltd 2.59% of their portfolio | 1.3m $181.6m | Reduced -95.9k |
| HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND 0.30% of their portfolio | 1.3m $181.0m | Reduced -463.7k |
| PRUDENTIAL FINANCIAL INC 0.22% of their portfolio | 1.3m $177.7m | Reduced -755.4k |
| JENNISON ASSOCIATES LLC 0.12% of their portfolio | 1.3m $176.2m | Added +375.4k |
| MANUFACTURERS LIFE INSURANCE COMPANY, THE 0.15% of their portfolio | 1.2m $173.1m | Reduced -518.5k |
| SEB Asset Management AB 0.73% of their portfolio | 1.2m $171.8m | First filing |
| Clearbridge Investments, LLC 0.15% of their portfolio | 1.2m $171.6m | Added +9.5k |
| VAN ECK ASSOCIATES CORP 0.13% of their portfolio | 1.2m $167.9m | Reduced -55.0k |
| STIFEL FINANCIAL CORP 0.15% of their portfolio | 1.2m $167.6m | Reduced -184.3k |
| MILLENNIUM MANAGEMENT LLC 0.12% of their portfolio | 1.2m $164.6m | Added +1.0m |
| AVIVA PLC 0.27% of their portfolio | 1.2m $163.7m | Added +17.8k |