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 ($252.6m this quarter). Holder counts are more reliable. Shares outstanding: 1.2bn as of 2024-04-30, 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 ≈ $73.22. Options: 46 managers hold calls ($735.1m notional), 44 hold puts ($689.6m).
Trends to Q1 2024
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 |
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 2022 | 766 | 833 |
| Q1 2023 | 776 | 824 |
| Q2 2023 | 731 | 849 |
| Q3 2023 | 792 | 759 |
| Q4 2023 | 759 | 799 |
| Q1 2024 | 751 | 907 |
Calls vs puts
Options held, notional value, last 4 quarters. P/C = puts ÷ calls
Numbers
| Quarter | Calls | Puts | P/C |
|---|---|---|---|
| Q2 2023 | $928.5m | $686.9m | 0.74 |
| Q3 2023 | $878.5m | $815.8m | 0.93 |
| Q4 2023 | $829.8m | $920.5m | 1.11 |
| Q1 2024 | $735.1m | $689.6m | 0.94 |
Biggest buyers
| MORGAN STANLEY | Added | +18.4m |
| CITADEL ADVISORS LLC | Added | +4.9m |
| TWO SIGMA ADVISERS, LP | Added | +3.9m |
| VOLORIDGE INVESTMENT MANAGEMENT, LLC | New | +3.5m |
| TWO SIGMA INVESTMENTS, LP | Added | +3.2m |
| VANGUARD GROUP INC | Added | +2.9m |
| JPMORGAN CHASE & CO | Added | +2.7m |
| WELLINGTON MANAGEMENT GROUP LLP | Added | +1.9m |
| KBC Group NV | Added | +1.7m |
| Capital Research Global Investors | Added | +1.6m |
Biggest sellers
| PARNASSUS INVESTMENTS, LLC | Reduced | -10.5m |
| NEUBERGER BERMAN GROUP LLC | Reduced | -4.6m |
| GOLDMAN SACHS GROUP INC | Reduced | -4.5m |
| ROYAL BANK OF CANADA | Reduced | -3.5m |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | Reduced | -3.3m |
| Nuveen Asset Management, LLC | Reduced | -3.0m |
| STATE STREET CORP | Reduced | -1.8m |
| AXA S.A. | Reduced | -1.7m |
| Ensign Peak Advisors, Inc | Reduced | -1.5m |
| RENAISSANCE TECHNOLOGIES LLC | Reduced | -1.3m |
Biggest calls
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Reduced | $150.1m2.0m shares |
| Twin Tree Management, LP | New | $99.2m1.4m shares |
| CITADEL ADVISORS LLC | Reduced | $64.8m885.3k shares |
| MILLENNIUM MANAGEMENT LLC | Reduced | $57.8m788.5k shares |
| BANK OF AMERICA CORP /DE/ | Added | $39.8m542.9k shares |
| SIMPLEX TRADING, LLC | Added | $33.0m450.2k shares |
| GROUP ONE TRADING LLC | Added | $30.1m410.3k shares |
| Lombard Odier Asset Management (USA) Corp | New | $27.1m370.0k shares |
| UBS Group AG | Reduced | $25.7m351.2k shares |
| JANE STREET GROUP, LLC | Added | $19.7m268.6k shares |
Biggest puts
| CITADEL ADVISORS LLC | Added | $117.0m1.6m shares |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Added | $103.4m1.4m shares |
| Twin Tree Management, LP | New | $45.9m626.9k shares |
| UBS Group AG | Reduced | $45.5m620.5k shares |
| MILLENNIUM MANAGEMENT LLC | Reduced | $41.4m565.3k shares |
| SIMPLEX TRADING, LLC | Added | $35.7m487.9k shares |
| CAPITAL FUND MANAGEMENT S.A. | Reduced | $28.8m393.0k shares |
| JANE STREET GROUP, LLC | Added | $21.1m287.7k shares |
| BANK OF AMERICA CORP /DE/ | Reduced | $19.7m269.4k shares |
| Lombard Odier Asset Management (USA) Corp | New | $18.3m250.0k 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 2024
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 2022 | 0 | — | 0 | — | — |
| Q3 2022 | 0 | — | 0 | — | — |
| Q4 2022 | 0 | — | 2 | $1.9m | — |
| Q1 2023 | 0 | — | 1 | $1.5m | — |
| Q2 2023 | 0 | — | 1 | $114.2k | $114.2k |
| Q3 2023 | 0 | — | 2 | $515.6k | $515.6k |
| Q4 2023 | 0 | — | 1 | $400.0k | $400.0k |
| Q1 2024 | 0 | — | 3 | $1.9m | $1.9m |
| Date | Insider | Trade | Value |
|---|---|---|---|
| 2024-02-29 | Parsey Merdad Chief Medical Officer | Sold plan | $598.7k8.2k shares |
| 2024-02-28 | Parsey Merdad Chief Medical Officer | Sold plan | $146.4k2.0k shares |
| 2024-01-16 | Dickinson Andrew D Chief Financial Officer | Sold plan | $428.9k5.0k shares |
| 2024-01-09 | Mercier Johanna Chief Commercial Officer | Sold plan | $702.5k8.2k 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 2024
| Manager | Shares | Change |
|---|---|---|
| BlackRock Inc. 0.21% of their portfolio | 122.5m $9.0bn | Reduced -262.0k |
| VANGUARD GROUP INC 0.17% of their portfolio | 114.7m $8.4bn | Added +2.9m |
| Capital World Investors 1.02% of their portfolio | 84.5m $6.2bn | Added +1.1m |
| Capital Research Global Investors 1.02% of their portfolio | 61.2m $4.5bn | Added +1.6m |
| STATE STREET CORP 0.19% of their portfolio | 57.7m $4.2bn | Reduced -1.8m |
| MORGAN STANLEY 0.11% of their portfolio | 54.0m $4.0bn | Added +18.4m |
| Dodge & Cox 1.41% of their portfolio | 33.2m $2.4bn | Reduced -127.5k |
| GEODE CAPITAL MANAGEMENT, LLC 0.18% of their portfolio | 26.3m $1.9bn | Added +1.1m |
| WELLINGTON MANAGEMENT GROUP LLP 0.27% of their portfolio | 20.6m $1.5bn | Added +1.9m |
| FMR LLC 0.09% of their portfolio | 17.6m $1.3bn | Added +490.9k |
| NORGES BANK 0.20% of their portfolio | 17.3m $1.3bn | Added +1.2m |
| Bank of New York Mellon Corp 0.21% of their portfolio | 14.7m $1.1bn | Reduced -825.4k |
| NORTHERN TRUST CORP 0.17% of their portfolio | 13.2m $969.0m | Reduced -796.6k |
| JPMORGAN CHASE & CO 0.04% of their portfolio | 13.2m $969.0m | Added +2.7m |
| Invesco Ltd. 0.18% of their portfolio | 11.3m $826.3m | Reduced -368.8k |
| Legal & General Group Plc 0.22% of their portfolio | 10.2m $749.0m | Reduced -140.9k |
| DIMENSIONAL FUND ADVISORS LP 0.20% of their portfolio | 10.1m $743.1m | Added +361.0k |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 0.25% of their portfolio | 9.5m $697.7m | Added +78.8k |
| Amundi 0.28% of their portfolio | 9.5m $640.3m | Reduced -1.0m |
| Nuveen Asset Management, LLC 0.19% of their portfolio | 8.6m $627.7m | Reduced -3.0m |
| California Public Employees Retirement System 0.39% of their portfolio | 7.6m $553.7m | Reduced -285.1k |
| DEUTSCHE BANK AG\ 0.26% of their portfolio | 7.5m $549.4m | Reduced -191.0k |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.12% of their portfolio | 7.4m $539.6m | Added +85.8k |
| MANUFACTURERS LIFE INSURANCE COMPANY, THE 0.48% of their portfolio | 7.1m $522.5m | Reduced -499.5k |
| ROYAL BANK OF CANADA 0.13% of their portfolio | 7.1m $522.3m | Reduced -3.5m |
| WELLS FARGO & COMPANY/MN 0.14% of their portfolio | 7.1m $517.7m | Reduced -55.3k |
| ALLIANCEBERNSTEIN L.P. 0.18% of their portfolio | 7.0m $511.2m | Reduced -287.8k |
| BARCLAYS PLC 0.23% of their portfolio | 6.8m $498.6m | Added +1.1m |
| BANK OF AMERICA CORP /DE/ 0.05% of their portfolio | 6.6m $484.7m | Added +154.0k |
| Pacer Advisors, Inc. 1.07% of their portfolio | 6.3m $463.3m | Added +1.3m |
| LSV ASSET MANAGEMENT 0.86% of their portfolio | 5.7m $415.8m | Reduced -251.2k |
| VAN ECK ASSOCIATES CORP 0.62% of their portfolio | 5.6m $408.2m | Added +579.7k |
| CITADEL ADVISORS LLC 0.38% of their portfolio | 5.3m $389.8m | Added +4.9m |
| FEDERATED HERMES, INC. 0.89% of their portfolio | 5.3m $387.1m | Added +1.5m |
| GOLDMAN SACHS GROUP INC 0.08% of their portfolio | 5.2m $380.2m | Reduced -4.5m |
| TWO SIGMA ADVISERS, LP 0.86% of their portfolio | 5.1m $372.1m | Added +3.9m |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP 0.34% of their portfolio | 5.0m $369.7m | Reduced -3.3m |
| Clearbridge Investments, LLC 0.28% of their portfolio | 4.8m $354.4m | Reduced -84.1k |
| HSBC HOLDINGS PLC 0.23% of their portfolio | 4.5m $327.4m | Added +1.2m |
| RENAISSANCE TECHNOLOGIES LLC 0.50% of their portfolio | 4.3m $316.3m | Reduced -1.3m |
| Allianz Asset Management GmbH 0.53% of their portfolio | 4.3m $316.0m | Added +89.1k |
| Pictet Asset Management Holding SA 0.34% of their portfolio | 4.2m $308.8m | Reduced -812.9k |
| UBS Group AG 0.10% of their portfolio | 4.2m $308.7m | Added +657.6k |
| FIRST TRUST ADVISORS LP 0.31% of their portfolio | 4.2m $306.4m | Added +65.5k |
| Aberdeen Group plc 0.57% of their portfolio | 3.9m $288.8m | Added +178.2k |
| Swiss National Bank 0.19% of their portfolio | 3.7m $273.3m | Reduced -164.8k |
| BANK OF MONTREAL /CAN/ 0.10% of their portfolio | 3.6m $305.5m | Reduced -1.1m |
| Robeco Institutional Asset Management B.V. 0.57% of their portfolio | 3.6m $262.5m | Reduced -16.3k |
| VOLORIDGE INVESTMENT MANAGEMENT, LLC 0.94% of their portfolio | 3.5m $257.1m | New |
| Sumitomo Mitsui Trust Group, Inc. 0.18% of their portfolio | 3.5m $255.3m | Added +10.2k |
| AQR CAPITAL MANAGEMENT LLC 0.41% of their portfolio | 3.3m $242.8m | Reduced -549.5k |
| TWO SIGMA INVESTMENTS, LP 0.57% of their portfolio | 3.2m $234.2m | Added +3.2m |
| KBC Group NV 0.74% of their portfolio | 3.2m $231.4m | Added +1.7m |
| CREDIT SUISSE AG/ 0.20% of their portfolio | 2.9m $211.6m | Reduced -205.1k |
| ENVESTNET ASSET MANAGEMENT INC 0.07% of their portfolio | 2.5m $183.7m | Added +83.5k |
| PRICE T ROWE ASSOCIATES INC /MD/ 0.02% of their portfolio | 2.5m $182.6m | Reduced -329.0k |
| RHUMBLINE ADVISERS 0.17% of their portfolio | 2.5m $180.2m | Reduced -361.7k |
| AMERICAN CENTURY COMPANIES INC 0.11% of their portfolio | 2.4m $179.3m | Reduced -107.8k |
| ASSETMARK, INC 0.58% of their portfolio | 2.4m $176.9m | Added +17.2k |
| National Pension Service 0.21% of their portfolio | 2.4m $176.7m | Added +53.2k |
| APG Asset Management N.V. 0.28% of their portfolio | 2.4m $161.9m | Added +17.1k |
| VICTORY CAPITAL MANAGEMENT INC 0.16% of their portfolio | 2.3m $168.0m | Reduced -196.4k |
| Candriam S.C.A. 1.07% of their portfolio | 2.3m $167.4m | Added +44.9k |
| Qube Research & Technologies Ltd 0.29% of their portfolio | 2.2m $162.1m | Added +1.5m |
| BNP PARIBAS FINANCIAL MARKETS 0.19% of their portfolio | 2.1m $152.0m | Added +283.4k |
| DekaBank Deutsche Girozentrale 0.28% of their portfolio | 2.1m $150.5m | Reduced -139.6k |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM 0.19% of their portfolio | 2.1m $150.6m | Added +21.9k |
| RAYMOND JAMES & ASSOCIATES 0.10% of their portfolio | 2.0m $148.8m | Reduced -452.2k |
| NEW YORK STATE COMMON RETIREMENT FUND 0.19% of their portfolio | 2.0m $144.5m | Reduced -80.1k |
| AXA S.A. 0.43% of their portfolio | 1.9m $142.1m | Reduced -1.7m |
| FRANKLIN RESOURCES INC 0.04% of their portfolio | 1.9m $140.5m | Reduced -459.1k |
| Swedbank AB 0.19% of their portfolio | 1.8m $134.5m | Added +175.6k |
| STIFEL FINANCIAL CORP 0.15% of their portfolio | 1.8m $133.4m | Added +173.0k |
| CANADA LIFE ASSURANCE Co 0.27% of their portfolio | 1.8m $132.6m | Added +21.2k |
| Mitsubishi UFJ Trust & Banking Corp 0.30% of their portfolio | 1.8m $131.1m | Reduced -109.8k |
| JANUS HENDERSON GROUP PLC 0.07% of their portfolio | 1.7m $125.5m | Reduced -56.2k |
| Caisse de depot et placement du Quebec 0.30% of their portfolio | 1.7m $124.7m | Reduced -595.5k |
| CAPTRUST FINANCIAL ADVISORS 0.40% of their portfolio | 1.6m $108.8m | Added +154.2k |
| AMERIPRISE FINANCIAL INC 0.03% of their portfolio | 1.6m $119.0m | Added +36.2k |
| SCHRODER INVESTMENT MANAGEMENT GROUP 0.14% of their portfolio | 1.6m $116.0m | Reduced -62.3k |
| Mitsubishi UFJ Asset Management Co., Ltd. 0.16% of their portfolio | 1.6m $115.1m | Added +255.4k |
| Railway Pension Investments Ltd 1.11% of their portfolio | 1.6m $114.6m | Added +4.8k |
| Assenagon Asset Management S.A. 0.29% of their portfolio | 1.5m $110.6m | Added +1.2m |
| BANK OF NOVA SCOTIA 0.22% of their portfolio | 1.5m $109.0m | Added +1.1m |
| ProShare Advisors LLC 0.29% of their portfolio | 1.5m $108.5m | Added +263.6k |
| Mirae Asset Global Investments Co., Ltd. 0.25% of their portfolio | 1.5m $115.7m | Added +31.6k |
| CITIGROUP INC 0.12% of their portfolio | 1.5m $107.0m | Reduced -248.9k |
| PRINCIPAL FINANCIAL GROUP INC 0.06% of their portfolio | 1.5m $106.5m | Reduced -5.7k |
| STATE BOARD OF ADMINISTRATION OF FLORIDA RETIREMENT SYSTEM 0.28% of their portfolio | 1.4m $119.5m | Added +71.9k |
| Ensign Peak Advisors, Inc 0.19% of their portfolio | 1.4m $105.0m | Reduced -1.5m |
| PARNASSUS INVESTMENTS, LLC 0.22% of their portfolio | 1.4m $105.0m | Reduced -10.5m |
| LOS ANGELES CAPITAL MANAGEMENT LLC 0.35% of their portfolio | 1.4m $103.8m | Reduced -19.7k |
| CANADA PENSION PLAN INVESTMENT BOARD 0.11% of their portfolio | 1.4m $103.3m | Added +80.7k |
| US BANCORP \DE\ 0.14% of their portfolio | 1.4m $101.7m | Reduced -31.4k |
| HighTower Advisors, LLC 0.16% of their portfolio | 1.4m $99.5m | Added +149.6k |
| NEW YORK STATE TEACHERS RETIREMENT SYSTEM 0.20% of their portfolio | 1.3m $94.2m | Reduced -13.0k |
| MACQUARIE GROUP LTD 0.10% of their portfolio | 1.3m $92.2m | Added +5.6k |
| CONFLUENCE INVESTMENT MANAGEMENT LLC 1.23% of their portfolio | 1.2m $91.3m | Reduced -21.0k |
| ROYAL LONDON ASSET MANAGEMENT LTD 0.22% of their portfolio | 1.2m $89.5m | Added +177.4k |
| Zurcher Kantonalbank (Zurich Cantonalbank) 0.30% of their portfolio | 1.2m $87.0m | Reduced -302.9k |