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O'Day Daniel Patrick

Disclosed activity across 1 company

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406
SEC CIK
0001638643

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Reported relationships

Latest disclosed role at each company.

CompanyLast reported asReport datePublished
GILEAD SCIENCES, INC.GILD · Entity 405Director · Chairman & CEOOctober 01, 2026October 03, 2026

Disclosed balances

About these balances

Latest available filing per company, not a reconstructed current portfolio. Matching sequences show the last reported balance with all source rows expandable; grouping alone does not establish account ownership. Do not add unresolved positions together. Filings may omit unchanged positions, and amendments may correct only part of an older disclosure. Jointly reported shares are not necessarily this owner's personal holdings.

GILEAD SCIENCES, INC.

Report date October 01, 2026 · Filed October 03, 2026

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Common StockSEC Table I · non-derivativeDirect566,683 Ending reported balance After 2026-10-01 transaction · row 2
2 source rows · reconciled sequence

Row 1 · 2026-10-01 · Sale · Disposed 12,000 · Balance 569,683

F1: The transaction reported in this Form 4 is made pursuant to a Rule 10b5-1 trading plan adopted on February 25, 2026.

F2: Sale prices for the transactions reported range from $147.21 to $148.205. Full information regarding the number of shares purchased or sold at each separate price will be provided to the SEC, the issuer, or its shareowners upon request.

Row 2 · 2026-10-01 · Sale · Disposed 3,000 · Balance 566,683

F1: The transaction reported in this Form 4 is made pursuant to a Rule 10b5-1 trading plan adopted on February 25, 2026.

F3: Sale prices for the transactions reported range from $148.23 to $149.13. Full information regarding the number of shares purchased or sold at each separate price will be provided to the SEC, the issuer, or its shareowners upon request.

Filing footnotes · ownership attribution and instrument terms

F1: The transaction reported in this Form 4 is made pursuant to a Rule 10b5-1 trading plan adopted on February 25, 2026.

F2: Sale prices for the transactions reported range from $147.21 to $148.205. Full information regarding the number of shares purchased or sold at each separate price will be provided to the SEC, the issuer, or its shareowners upon request.

F3: Sale prices for the transactions reported range from $148.23 to $149.13. Full information regarding the number of shares purchased or sold at each separate price will be provided to the SEC, the issuer, or its shareowners upon request.

Transaction history

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Purchases/sales include open-market and private transactions. Plan disclosure applies to the filing; individual rows may differ. “Not disclosed” is not “unplanned.”

The cutoff filters transaction history only. Company summaries and owner relationships show the latest available disclosures. Parser corrections can improve historical records.

Transaction dateCompanyActivity / securityShares / unitsReported priceReported valueDetails
October 01, 2026 Filed Oct 3, 2026 00:40 UTC GILEAD SCIENCES, INC. GILD · Entity 405 SaleCommon Stock 3,000 $148.63 $445,879.50
Disclosure

SEC source: 0001638643-26-000035 · wk-form4_1790973619.xml · nonDerivative · entry 2

O'Day Daniel Patrick · CIK 0001638643 · Director · Chairman & CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 566,683

F1 · kind: The transaction reported in this Form 4 is made pursuant to a Rule 10b5-1 trading plan adopted on February 25, 2026.

F3 · price: Sale prices for the transactions reported range from $148.23 to $149.13. Full information regarding the number of shares purchased or sold at each separate price will be provided to the SEC, the issuer, or its shareowners upon request.

Read SEC document
October 01, 2026 Filed Oct 3, 2026 00:40 UTC GILEAD SCIENCES, INC. GILD · Entity 405 SaleCommon Stock 12,000 $147.72 $1,772,628.00
Disclosure

SEC source: 0001638643-26-000035 · wk-form4_1790973619.xml · nonDerivative · entry 1

O'Day Daniel Patrick · CIK 0001638643 · Director · Chairman & CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 569,683

F1 · kind: The transaction reported in this Form 4 is made pursuant to a Rule 10b5-1 trading plan adopted on February 25, 2026.

F2 · price: Sale prices for the transactions reported range from $147.21 to $148.205. Full information regarding the number of shares purchased or sold at each separate price will be provided to the SEC, the issuer, or its shareowners upon request.

Read SEC document
September 10, 2026 Filed Sep 11, 2026 22:27 UTC GILEAD SCIENCES, INC. GILD · Entity 405 Exercise / conversionRestricted Stock Unit · Derivative 8,780 Not disclosed Not disclosed
Disclosure

SEC source: 0001638643-26-000033 · wk-form4_1789165629.xml · derivative · entry 3

O'Day Daniel Patrick · CIK 0001638643 · Director · Chairman & CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 83,300

Underlying: Common Stock · 8,780 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: Each restricted stock unit represents the contingent right to receive one share of Gilead Sciences, Inc.'s common stock.

F1 · price: Each restricted stock unit represents the contingent right to receive one share of Gilead Sciences, Inc.'s common stock.

F2 · derivative.exercise_date: The restricted stock units have a 4-year vesting schedule. 25% vest on the first anniversary of the grant date. The balance will vest 6.25% quarterly thereafter until fully vested.

F2 · derivative.expiration_date: The restricted stock units have a 4-year vesting schedule. 25% vest on the first anniversary of the grant date. The balance will vest 6.25% quarterly thereafter until fully vested.

Read SEC document
September 10, 2026 Filed Sep 11, 2026 22:27 UTC GILEAD SCIENCES, INC. GILD · Entity 405 Tax withholdingCommon Stock 4,230 $144.81 $612,546.30
Disclosure

SEC source: 0001638643-26-000033 · wk-form4_1789165629.xml · nonDerivative · entry 2

O'Day Daniel Patrick · CIK 0001638643 · Director · Chairman & CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 581,683

Read SEC document
September 10, 2026 Filed Sep 11, 2026 22:27 UTC GILEAD SCIENCES, INC. GILD · Entity 405 Exercise / conversionCommon Stock 8,780 Not disclosed Not disclosed
Disclosure

SEC source: 0001638643-26-000033 · wk-form4_1789165629.xml · nonDerivative · entry 1

O'Day Daniel Patrick · CIK 0001638643 · Director · Chairman & CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 585,913

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: Each restricted stock unit represents the contingent right to receive one share of Gilead Sciences, Inc.'s common stock.

Read SEC document
September 01, 2026 Filed Sep 2, 2026 20:12 UTC GILEAD SCIENCES, INC. GILD · Entity 405 SaleCommon Stock 5,408 $149.38 $807,856.23
Disclosure

SEC source: 0001638643-26-000031 · wk-form4_1788379963.xml · nonDerivative · entry 3

O'Day Daniel Patrick · CIK 0001638643 · Director · Chairman & CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 577,133

F1 · kind: The transaction reported in this Form 4 is made pursuant to a Rule 10b5-1 trading plan adopted on February 25, 2026.

F4 · price: Sale prices for the transactions reported range from $148.96 to $149.94. Full information regarding the number of shares purchased or sold at each separate price will be provided to the SEC, the issuer, or its shareowners upon request.

Read SEC document
September 01, 2026 Filed Sep 2, 2026 20:12 UTC GILEAD SCIENCES, INC. GILD · Entity 405 SaleCommon Stock 7,992 $148.36 $1,185,721.89
Disclosure

SEC source: 0001638643-26-000031 · wk-form4_1788379963.xml · nonDerivative · entry 2

O'Day Daniel Patrick · CIK 0001638643 · Director · Chairman & CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 582,541

F1 · kind: The transaction reported in this Form 4 is made pursuant to a Rule 10b5-1 trading plan adopted on February 25, 2026.

F3 · price: Sale prices for the transactions reported range from $147.95 to $148.93. Full information regarding the number of shares purchased or sold at each separate price will be provided to the SEC, the issuer, or its shareowners upon request.

Read SEC document
September 01, 2026 Filed Sep 2, 2026 20:12 UTC GILEAD SCIENCES, INC. GILD · Entity 405 SaleCommon Stock 1,600 $147.51 $236,013.92
Disclosure

SEC source: 0001638643-26-000031 · wk-form4_1788379963.xml · nonDerivative · entry 1

O'Day Daniel Patrick · CIK 0001638643 · Director · Chairman & CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 590,533

F1 · kind: The transaction reported in this Form 4 is made pursuant to a Rule 10b5-1 trading plan adopted on February 25, 2026.

F2 · price: Sale prices for the transactions reported range from $146.94 to $147.92. Full information regarding the number of shares purchased or sold at each separate price will be provided to the SEC, the issuer, or its shareowners upon request.

Read SEC document
August 03, 2026 Filed Aug 4, 2026 21:40 UTC GILEAD SCIENCES, INC. GILD · Entity 405 SaleCommon Stock 600 $131.34 $78,805.98
Disclosure

SEC source: 0001638643-26-000028 · wk-form4_1785879633.xml · nonDerivative · entry 3

O'Day Daniel Patrick · CIK 0001638643 · Director · Chairman & CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 592,133

F1 · kind: The transaction reported in this Form 4 is made pursuant to a Rule 10b5-1 trading plan adopted on February 25, 2026.

F4 · price: Sale prices for the transactions reported range from $131.21 to $131.47. Full information regarding the number of shares purchased or sold at each separate price will be provided to the SEC, the issuer, or its shareowners upon request.

Read SEC document
August 03, 2026 Filed Aug 4, 2026 21:40 UTC GILEAD SCIENCES, INC. GILD · Entity 405 SaleCommon Stock 7,700 $130.80 $1,007,176.94
Disclosure

SEC source: 0001638643-26-000028 · wk-form4_1785879633.xml · nonDerivative · entry 2

O'Day Daniel Patrick · CIK 0001638643 · Director · Chairman & CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 592,733

F1 · kind: The transaction reported in this Form 4 is made pursuant to a Rule 10b5-1 trading plan adopted on February 25, 2026.

F3 · price: Sale prices for the transactions reported range from $130.18 to $131.17. Full information regarding the number of shares purchased or sold at each separate price will be provided to the SEC, the issuer, or its shareowners upon request.

Read SEC document
August 03, 2026 Filed Aug 4, 2026 21:40 UTC GILEAD SCIENCES, INC. GILD · Entity 405 SaleCommon Stock 6,700 $129.66 $868,710.61
Disclosure

SEC source: 0001638643-26-000028 · wk-form4_1785879633.xml · nonDerivative · entry 1

O'Day Daniel Patrick · CIK 0001638643 · Director · Chairman & CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 600,433

F1 · kind: The transaction reported in this Form 4 is made pursuant to a Rule 10b5-1 trading plan adopted on February 25, 2026.

F2 · price: Sale prices for the transactions reported range from $129.17 to $130.16. Full information regarding the number of shares purchased or sold at each separate price will be provided to the SEC, the issuer, or its shareowners upon request.

Read SEC document
July 01, 2026 Filed Jul 2, 2026 20:14 UTC GILEAD SCIENCES, INC. GILD · Entity 405 SaleCommon Stock 3,100 $127.08 $393,932.50
Disclosure

SEC source: 0001638643-26-000026 · wk-form4_1783023256.xml · nonDerivative · entry 2

O'Day Daniel Patrick · CIK 0001638643 · Director · Chairman & CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 607,133

F1 · kind: The transaction reported in this Form 4 is made pursuant to a Rule 10b5-1 trading plan adopted on February 25, 2026.

F3 · price: Sale prices for the transactions reported range from $126.595 to $127.44. Full information regarding the number of shares purchased or sold at each separate price will be provided to the SEC, the issuer, or its shareowners upon request.

Read SEC document
July 01, 2026 Filed Jul 2, 2026 20:14 UTC GILEAD SCIENCES, INC. GILD · Entity 405 SaleCommon Stock 11,900 $126.09 $1,500,467.43
Disclosure

SEC source: 0001638643-26-000026 · wk-form4_1783023256.xml · nonDerivative · entry 1

O'Day Daniel Patrick · CIK 0001638643 · Director · Chairman & CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 610,233

F1 · kind: The transaction reported in this Form 4 is made pursuant to a Rule 10b5-1 trading plan adopted on February 25, 2026.

F2 · price: Sale prices for the transactions reported range from $125.59 to $126.55. Full information regarding the number of shares purchased or sold at each separate price will be provided to the SEC, the issuer, or its shareowners upon request.

Read SEC document
June 10, 2026 Filed Jun 11, 2026 22:29 UTC GILEAD SCIENCES, INC. GILD · Entity 405 Exercise / conversionRestricted Stock Unit · Derivative 8,779 Not disclosed Not disclosed
Disclosure

SEC source: 0001638643-26-000024 · wk-form4_1781216988.xml · derivative · entry 3

O'Day Daniel Patrick · CIK 0001638643 · Director · Chairman & CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 92,080

Underlying: Common Stock · 8,779 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: Each restricted stock unit represents the contingent right to receive one share of Gilead Sciences, Inc.'s common stock.

F1 · price: Each restricted stock unit represents the contingent right to receive one share of Gilead Sciences, Inc.'s common stock.

F2 · derivative.exercise_date: The restricted stock units have a four-year vesting schedule. 25% vest on the first anniversary of the date of the grant. The balance will vest 6.25% quarterly thereafter until fully vested.

F2 · derivative.expiration_date: The restricted stock units have a four-year vesting schedule. 25% vest on the first anniversary of the date of the grant. The balance will vest 6.25% quarterly thereafter until fully vested.

Read SEC document
June 10, 2026 Filed Jun 11, 2026 22:29 UTC GILEAD SCIENCES, INC. GILD · Entity 405 Tax withholdingCommon Stock 4,213 $121.48 $511,795.24
Disclosure

SEC source: 0001638643-26-000024 · wk-form4_1781216988.xml · nonDerivative · entry 2

O'Day Daniel Patrick · CIK 0001638643 · Director · Chairman & CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 622,133

Read SEC document
June 10, 2026 Filed Jun 11, 2026 22:29 UTC GILEAD SCIENCES, INC. GILD · Entity 405 Exercise / conversionCommon Stock 8,779 Not disclosed Not disclosed
Disclosure

SEC source: 0001638643-26-000024 · wk-form4_1781216988.xml · nonDerivative · entry 1

O'Day Daniel Patrick · CIK 0001638643 · Director · Chairman & CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 626,346

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: Each restricted stock unit represents the contingent right to receive one share of Gilead Sciences, Inc.'s common stock.

Read SEC document
June 01, 2026 Filed Jun 2, 2026 22:04 UTC GILEAD SCIENCES, INC. GILD · Entity 405 SaleCommon Stock 1,038 $132.97 $138,020.58
Disclosure

SEC source: 0001638643-26-000022 · wk-form4_1780437841.xml · nonDerivative · entry 3

O'Day Daniel Patrick · CIK 0001638643 · Director · Chairman & CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 617,567

F1 · kind: The transaction reported in this Form 4 is made pursuant to a Rule 10b5-1 trading plan adopted on February 25, 2026.

F4 · price: Sale prices for the transactions reported range from $132.71 to $133.295. Full information regarding the number of shares purchased or sold at each separate price will be provided to the SEC, the issuer, or its shareowners upon request.

Read SEC document
June 01, 2026 Filed Jun 2, 2026 22:04 UTC GILEAD SCIENCES, INC. GILD · Entity 405 SaleCommon Stock 3,062 $132.22 $404,842.64
Disclosure

SEC source: 0001638643-26-000022 · wk-form4_1780437841.xml · nonDerivative · entry 2

O'Day Daniel Patrick · CIK 0001638643 · Director · Chairman & CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 618,605

F1 · kind: The transaction reported in this Form 4 is made pursuant to a Rule 10b5-1 trading plan adopted on February 25, 2026.

F3 · price: Sale prices for the transactions reported range from $131.71 to $132.70. Full information regarding the number of shares purchased or sold at each separate price will be provided to the SEC, the issuer, or its shareowners upon request.

Read SEC document
June 01, 2026 Filed Jun 2, 2026 22:04 UTC GILEAD SCIENCES, INC. GILD · Entity 405 SaleCommon Stock 10,900 $131.10 $1,428,983.46
Disclosure

SEC source: 0001638643-26-000022 · wk-form4_1780437841.xml · nonDerivative · entry 1

O'Day Daniel Patrick · CIK 0001638643 · Director · Chairman & CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 621,667

F1 · kind: The transaction reported in this Form 4 is made pursuant to a Rule 10b5-1 trading plan adopted on February 25, 2026.

F2 · price: Sale prices for the transactions reported range from $130.66 to $131.64. Full information regarding the number of shares purchased or sold at each separate price will be provided to the SEC, the issuer, or its shareowners upon request.

Read SEC document
April 28, 2026 Filed Apr 29, 2026 21:53 UTC GILEAD SCIENCES, INC. GILD · Entity 405 SaleCommon Stock 3,050 $130.01 $396,533.86
Disclosure

SEC source: 0001638643-26-000020 · wk-form4_1777499620.xml · nonDerivative · entry 2

O'Day Daniel Patrick · CIK 0001638643 · Director · Chairman & CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 632,567

F1 · kind: The transaction reported in this Form 4 is made pursuant to a Rule 10b5-1 trading plan adopted on February 28, 2025.

F3 · price: Sale prices for the transactions reported range from $129.42 to $130.47. Full information regarding the number of shares purchased or sold at each separate price will be provided to the SEC, the issuer, or its shareowners upon request.

Read SEC document
April 28, 2026 Filed Apr 29, 2026 21:53 UTC GILEAD SCIENCES, INC. GILD · Entity 405 SaleCommon Stock 6,950 $128.79 $895,074.52
Disclosure

SEC source: 0001638643-26-000020 · wk-form4_1777499620.xml · nonDerivative · entry 1

O'Day Daniel Patrick · CIK 0001638643 · Director · Chairman & CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 635,617

F1 · kind: The transaction reported in this Form 4 is made pursuant to a Rule 10b5-1 trading plan adopted on February 28, 2025.

F2 · price: Sale prices for the transactions reported range from $128.41 to $129.325. Full information regarding the number of shares purchased or sold at each separate price will be provided to the SEC, the issuer, or its shareowners upon request.

Read SEC document
March 27, 2026 Filed Mar 30, 2026 21:59 UTC GILEAD SCIENCES, INC. GILD · Entity 405 SaleCommon Stock 10,000 $136.82 $1,368,162.00
Disclosure

SEC source: 0001638643-26-000018 · wk-form4_1774907986.xml · nonDerivative · entry 1

O'Day Daniel Patrick · CIK 0001638643 · Director · Chairman & CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 642,567

F1 · kind: The transaction reported in this Form 4 is made pursuant to a Rule 10b5-1 trading plan adopted on February 28, 2025.

F2 · price: Sale prices for the transactions reported range from $136.51 to $137.22. Full information regarding the number of shares purchased or sold at each separate price will be provided to the SEC, the issuer, or its shareowners upon request.

Read SEC document
March 10, 2026 Filed Mar 12, 2026 20:24 UTC GILEAD SCIENCES, INC. GILD · Entity 405 GrantNon-qualified Stock Option (Right to Buy) · Derivative 122,755 $0.00 Strike: $148.56 $0.00
Disclosure

SEC source: 0001638643-26-000014 · wk-form4_1773347089.xml · derivative · entry 5

O'Day Daniel Patrick · CIK 0001638643 · Director · Chairman & CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 122,755

Underlying: Common Stock · 122,755 shares

Expires 2036-03-10

F3 · derivative.exercise_date: The stock options have a four-year vesting schedule. 25% of the options vest on the first anniversary date of the grant. The balance will vest 6.25% quarterly thereafter until fully vested.

Read SEC document
March 10, 2026 Filed Mar 12, 2026 20:24 UTC GILEAD SCIENCES, INC. GILD · Entity 405 GrantRestricted Stock Unit · Derivative 32,815 Not disclosed Not disclosed
Disclosure

SEC source: 0001638643-26-000014 · wk-form4_1773347089.xml · derivative · entry 4

O'Day Daniel Patrick · CIK 0001638643 · Director · Chairman & CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 100,859

Underlying: Common Stock · 32,815 shares

Expires not disclosed

F1 · derivative.exercise_price: Each restricted stock unit represents the contingent right to receive one share of Gilead Sciences, Inc.'s common stock.

F1 · price: Each restricted stock unit represents the contingent right to receive one share of Gilead Sciences, Inc.'s common stock.

F2 · derivative.exercise_date: The restricted stock units have a four-year vesting schedule. 25% vest on the first anniversary of the date of the grant. The balance will vest 6.25% quarterly thereafter until fully vested.

F2 · derivative.expiration_date: The restricted stock units have a four-year vesting schedule. 25% vest on the first anniversary of the date of the grant. The balance will vest 6.25% quarterly thereafter until fully vested.

Read SEC document
March 10, 2026 Filed Mar 12, 2026 20:24 UTC GILEAD SCIENCES, INC. GILD · Entity 405 Exercise / conversionRestricted Stock Unit · Derivative 20,026 Not disclosed Not disclosed
Disclosure

SEC source: 0001638643-26-000014 · wk-form4_1773347089.xml · derivative · entry 3

O'Day Daniel Patrick · CIK 0001638643 · Director · Chairman & CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 68,044

Underlying: Common Stock · 20,026 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: Each restricted stock unit represents the contingent right to receive one share of Gilead Sciences, Inc.'s common stock.

F1 · price: Each restricted stock unit represents the contingent right to receive one share of Gilead Sciences, Inc.'s common stock.

F2 · derivative.exercise_date: The restricted stock units have a four-year vesting schedule. 25% vest on the first anniversary of the date of the grant. The balance will vest 6.25% quarterly thereafter until fully vested.

F2 · derivative.expiration_date: The restricted stock units have a four-year vesting schedule. 25% vest on the first anniversary of the date of the grant. The balance will vest 6.25% quarterly thereafter until fully vested.

Read SEC document
March 10, 2026 Filed Mar 12, 2026 20:24 UTC GILEAD SCIENCES, INC. GILD · Entity 405 Tax withholdingCommon Stock 9,767 $148.56 $1,450,985.52
Disclosure

SEC source: 0001638643-26-000014 · wk-form4_1773347089.xml · nonDerivative · entry 2

O'Day Daniel Patrick · CIK 0001638643 · Director · Chairman & CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 652,567

Read SEC document
March 10, 2026 Filed Mar 12, 2026 20:24 UTC GILEAD SCIENCES, INC. GILD · Entity 405 Exercise / conversionCommon Stock 20,026 Not disclosed Not disclosed
Disclosure

SEC source: 0001638643-26-000014 · wk-form4_1773347089.xml · nonDerivative · entry 1

O'Day Daniel Patrick · CIK 0001638643 · Director · Chairman & CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 662,334

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: Each restricted stock unit represents the contingent right to receive one share of Gilead Sciences, Inc.'s common stock.

Read SEC document
February 27, 2026 Filed Mar 2, 2026 21:46 UTC GILEAD SCIENCES, INC. GILD · Entity 405 SaleCommon Stock 100 $145.71 $14,571.00
Disclosure

SEC source: 0001638643-26-000012 · wk-form4_1772487977.xml · nonDerivative · entry 4

O'Day Daniel Patrick · CIK 0001638643 · Director · Chairman & CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 642,308

F2 · kind: The transaction reported in this Form 4 is made pursuant to a Rule 10b5-1 trading plan adopted on February 28, 2025.

Read SEC document
February 27, 2026 Filed Mar 2, 2026 21:46 UTC GILEAD SCIENCES, INC. GILD · Entity 405 SaleCommon Stock 6,419 $145.18 $931,901.43
Disclosure

SEC source: 0001638643-26-000012 · wk-form4_1772487977.xml · nonDerivative · entry 3

O'Day Daniel Patrick · CIK 0001638643 · Director · Chairman & CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 642,408

F2 · kind: The transaction reported in this Form 4 is made pursuant to a Rule 10b5-1 trading plan adopted on February 28, 2025.

F4 · price: Sale prices for the transactions reported range from $144.66 to $145.65. Full information regarding the number of shares purchased or sold at each separate price will be provided to the SEC, the issuer, or its shareowners upon request.

Read SEC document
February 27, 2026 Filed Mar 2, 2026 21:46 UTC GILEAD SCIENCES, INC. GILD · Entity 405 SaleCommon Stock 3,481 $144.04 $501,386.18
Disclosure

SEC source: 0001638643-26-000012 · wk-form4_1772487977.xml · nonDerivative · entry 2

O'Day Daniel Patrick · CIK 0001638643 · Director · Chairman & CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 648,827

F2 · kind: The transaction reported in this Form 4 is made pursuant to a Rule 10b5-1 trading plan adopted on February 28, 2025.

F3 · price: Sale prices for the transactions reported range from $143.63 to $144.59. Full information regarding the number of shares purchased or sold at each separate price will be provided to the SEC, the issuer, or its shareowners upon request.

Read SEC document
February 27, 2026 Filed Mar 2, 2026 21:46 UTC GILEAD SCIENCES, INC. GILD · Entity 405 GrantCommon Stock 38,396 $0.00 $0.00
Disclosure

SEC source: 0001638643-26-000012 · wk-form4_1772487977.xml · nonDerivative · entry 1

O'Day Daniel Patrick · CIK 0001638643 · Director · Chairman & CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 652,308

F1 · acquired: Represents shares of the Issuer's common stock subject to specific tranches of the performance share awards made to the Reporting Person on March 10, 2025. Such tranches of shares were subject to both performance-vesting and service-vesting requirements. The performance vesting requirement was satisfied on the date reported in Column 2 above upon certification of performance goal attainment by the Compensation and Talent Committee of the Issuer's Board of Directors.

Read SEC document
February 05, 2026 Filed Feb 6, 2026 21:22 UTC GILEAD SCIENCES, INC. GILD · Entity 405 Exercise / conversionNon-qualified Stock Option (Right to Buy) · Derivative 115,640 $0.00 Strike: $66.01 $0.00
Disclosure

SEC source: 0001638643-26-000010 · wk-form4_1770412954.xml · derivative · entry 3

O'Day Daniel Patrick · CIK 0001638643 · Director · Chairman & CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 115,640 shares

Expires 2029-03-01

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · kind: The transaction reported in this Form 4 is made pursuant to a Rule 10b5-1 trading plan adopted on February 28, 2025.

F2 · derivative.exercise_date: The stock options have a four-year vesting schedule. 25% of the stock options vest on the first anniversary of the date of the grant. The balance will vest 6.25% quarterly thereafter until fully vested.

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February 05, 2026 Filed Feb 6, 2026 21:22 UTC GILEAD SCIENCES, INC. GILD · Entity 405 SaleCommon Stock 115,640 $150.00 $17,346,000.00
Disclosure

SEC source: 0001638643-26-000010 · wk-form4_1770412954.xml · nonDerivative · entry 2

O'Day Daniel Patrick · CIK 0001638643 · Director · Chairman & CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 613,912

F1 · kind: The transaction reported in this Form 4 is made pursuant to a Rule 10b5-1 trading plan adopted on February 28, 2025.

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February 05, 2026 Filed Feb 6, 2026 21:22 UTC GILEAD SCIENCES, INC. GILD · Entity 405 Exercise / conversionCommon Stock 115,640 $66.01 $7,633,396.40
Disclosure

SEC source: 0001638643-26-000010 · wk-form4_1770412954.xml · nonDerivative · entry 1

O'Day Daniel Patrick · CIK 0001638643 · Director · Chairman & CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 729,552

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · kind: The transaction reported in this Form 4 is made pursuant to a Rule 10b5-1 trading plan adopted on February 28, 2025.

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February 03, 2026 Filed Feb 5, 2026 23:46 UTC GILEAD SCIENCES, INC. GILD · Entity 405 Tax withholdingCommon Stock 74,461 $143.28 $10,668,772.08
Disclosure

SEC source: 0001638643-26-000008 · wk-form4_1770335197.xml · nonDerivative · entry 2

O'Day Daniel Patrick · CIK 0001638643 · Director · Chairman & CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 613,912

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February 03, 2026 Filed Feb 5, 2026 23:46 UTC GILEAD SCIENCES, INC. GILD · Entity 405 GrantCommon Stock 131,675 $0.00 $0.00
Disclosure

SEC source: 0001638643-26-000008 · wk-form4_1770335197.xml · nonDerivative · entry 1

O'Day Daniel Patrick · CIK 0001638643 · Director · Chairman & CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 688,373

F1 · shares: Represents shares of the Issuer's common stock subject to specific tranches of the performance share awards made to the Reporting Person on March 10, 2023 and March 10, 2024. Such tranches of shares were subject to both performance-vesting and service-vesting requirements. The performance vesting requirement was satisfied on the date reported in Column 2 above upon certification of performance goal attainment by the Compensation and Talent Committee of the Issuer's Board of Directors. However, the shares certified for grants made March 10, 2024 will not be issued to the Reporting Person until the requisite continuing service requirements are also met.

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January 28, 2026 Filed Jan 29, 2026 22:23 UTC GILEAD SCIENCES, INC. GILD · Entity 405 SaleCommon Stock 4,968 $140.24 $696,725.24
Disclosure

SEC source: 0001638643-26-000006 · wk-form4_1769725380.xml · nonDerivative · entry 2

O'Day Daniel Patrick · CIK 0001638643 · Director · Chairman & CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 556,698

F1 · kind: The transaction reported in this Form 4 is made pursuant to a Rule 10b5-1 trading plan adopted on February 28, 2025.

F3 · price: Sale prices for the transactions reported range from $140.00 to $140.57. Full information regarding the number of shares purchased or sold at each separate price will be provided to the SEC, the issuer, or its shareowners upon request.

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January 28, 2026 Filed Jan 29, 2026 22:23 UTC GILEAD SCIENCES, INC. GILD · Entity 405 SaleCommon Stock 5,032 $139.54 $702,185.91
Disclosure

SEC source: 0001638643-26-000006 · wk-form4_1769725380.xml · nonDerivative · entry 1

O'Day Daniel Patrick · CIK 0001638643 · Director · Chairman & CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 561,666

F1 · kind: The transaction reported in this Form 4 is made pursuant to a Rule 10b5-1 trading plan adopted on February 28, 2025.

F2 · price: Sale prices for the transactions reported range from $138.99 to $139.97. Full information regarding the number of shares purchased or sold at each separate price will be provided to the SEC, the issuer, or its shareowners upon request.

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January 23, 2026 Filed Jan 27, 2026 00:29 UTC GILEAD SCIENCES, INC. GILD · Entity 405 Exercise / conversionNon-qualified Stock Option (Right to Buy) · Derivative 115,640 $0.00 Strike: $66.01 $0.00
Disclosure

SEC source: 0001638643-26-000004 · wk-form4_1769473761.xml · derivative · entry 3

O'Day Daniel Patrick · CIK 0001638643 · Director · Chairman & CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 115,640

Underlying: Common Stock · 115,640 shares

Expires 2029-03-01

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · kind: The transaction reported in this Form 4 is made pursuant to a Rule 10b5-1 trading plan adopted on February 28, 2025.

F2 · derivative.exercise_date: The stock options have a four-year vesting schedule. 25% of the stock options vest on the first anniversary of the date of the grant. The balance will vest 6.25% quarterly thereafter until fully vested.

Read SEC document
January 23, 2026 Filed Jan 27, 2026 00:29 UTC GILEAD SCIENCES, INC. GILD · Entity 405 SaleCommon Stock 115,640 $135.00 $15,611,400.00
Disclosure

SEC source: 0001638643-26-000004 · wk-form4_1769473761.xml · nonDerivative · entry 2

O'Day Daniel Patrick · CIK 0001638643 · Director · Chairman & CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 566,698

F1 · kind: The transaction reported in this Form 4 is made pursuant to a Rule 10b5-1 trading plan adopted on February 28, 2025.

Read SEC document
January 23, 2026 Filed Jan 27, 2026 00:29 UTC GILEAD SCIENCES, INC. GILD · Entity 405 Exercise / conversionCommon Stock 115,640 $66.01 $7,633,396.40
Disclosure

SEC source: 0001638643-26-000004 · wk-form4_1769473761.xml · nonDerivative · entry 1

O'Day Daniel Patrick · CIK 0001638643 · Director · Chairman & CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 682,338

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · kind: The transaction reported in this Form 4 is made pursuant to a Rule 10b5-1 trading plan adopted on February 28, 2025.

Read SEC document
December 29, 2025 Filed Dec 30, 2025 21:23 UTC GILEAD SCIENCES, INC. GILD · Entity 405 SaleCommon Stock 10,000 $124.83 $1,248,272.00
Disclosure

SEC source: 0001638643-25-000017 · wk-form4_1767129779.xml · nonDerivative · entry 1

O'Day Daniel Patrick · CIK 0001638643 · Director · Chairman & CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 566,698

F1 · kind: The transaction reported in this Form 4 is made pursuant to a Rule 10b5-1 trading plan adopted on February 28, 2025.

F2 · price: Sale prices for the transactions reported range from $124.40 to $125.16. Full information regarding the number of shares purchased or sold at each separate price will be provided to the SEC, the issuer, or its shareowners upon request.

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December 10, 2025 Filed Dec 12, 2025 01:38 UTC GILEAD SCIENCES, INC. GILD · Entity 405 Exercise / conversionRestricted Stock Unit · Derivative 10,426 Not disclosed Not disclosed
Disclosure

SEC source: 0001638643-25-000015 · wk-form4_1765503524.xml · derivative · entry 3

O'Day Daniel Patrick · CIK 0001638643 · Director · Chairman & CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 88,070

Underlying: Common Stock · 10,426 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: Each restricted stock unit represents the contingent right to receive one share of Gilead Sciences, Inc.'s common stock.

F1 · price: Each restricted stock unit represents the contingent right to receive one share of Gilead Sciences, Inc.'s common stock.

F2 · derivative.exercise_date: The restricted stock units have a four-year vesting schedule. 25% vest on the first anniversary of the date of the grant. The balance will vest 6.25% quarterly thereafter until fully vested.

F2 · derivative.expiration_date: The restricted stock units have a four-year vesting schedule. 25% vest on the first anniversary of the date of the grant. The balance will vest 6.25% quarterly thereafter until fully vested.

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December 10, 2025 Filed Dec 12, 2025 01:38 UTC GILEAD SCIENCES, INC. GILD · Entity 405 Tax withholdingCommon Stock 4,931 $121.34 $598,327.54
Disclosure

SEC source: 0001638643-25-000015 · wk-form4_1765503524.xml · nonDerivative · entry 2

O'Day Daniel Patrick · CIK 0001638643 · Director · Chairman & CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 576,698

Read SEC document
December 10, 2025 Filed Dec 12, 2025 01:38 UTC GILEAD SCIENCES, INC. GILD · Entity 405 Exercise / conversionCommon Stock 10,426 Not disclosed Not disclosed
Disclosure

SEC source: 0001638643-25-000015 · wk-form4_1765503524.xml · nonDerivative · entry 1

O'Day Daniel Patrick · CIK 0001638643 · Director · Chairman & CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 581,629

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: Each restricted stock unit represents the contingent right to receive one share of Gilead Sciences, Inc.'s common stock.

Read SEC document
November 28, 2025 Filed Dec 1, 2025 21:50 UTC GILEAD SCIENCES, INC. GILD · Entity 405 SaleCommon Stock 6,788 $126.84 $861,015.71
Disclosure

SEC source: 0001638643-25-000013 · wk-form4_1764625837.xml · nonDerivative · entry 2

O'Day Daniel Patrick · CIK 0001638643 · Director · Chairman & CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 571,203

F1 · kind: The transactions reported in this Form 4 are made pursuant to a Rule 10b5-1 trading plan adopted on February 28, 2025.

F3 · price: Sale prices for the transactions reported range from $126.50 to $127.48. Full information regarding the number of shares purchased or sold at each separate price will be provided to the SEC, the issuer, or its shareowners upon request.

Read SEC document
November 28, 2025 Filed Dec 1, 2025 21:50 UTC GILEAD SCIENCES, INC. GILD · Entity 405 SaleCommon Stock 3,212 $125.91 $404,428.06
Disclosure

SEC source: 0001638643-25-000013 · wk-form4_1764625837.xml · nonDerivative · entry 1

O'Day Daniel Patrick · CIK 0001638643 · Director · Chairman & CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 577,991

F1 · kind: The transactions reported in this Form 4 are made pursuant to a Rule 10b5-1 trading plan adopted on February 28, 2025.

F2 · price: Sale prices for the transactions reported range from $125.41 to $126.33. Full information regarding the number of shares purchased or sold at each separate price will be provided to the SEC, the issuer, or its shareowners upon request.

Read SEC document
October 28, 2025 Filed Oct 29, 2025 20:14 UTC GILEAD SCIENCES, INC. GILD · Entity 405 SaleCommon Stock 2,022 $118.82 $240,258.69
Disclosure

SEC source: 0001638643-25-000011 · wk-form4_1761768857.xml · nonDerivative · entry 2

O'Day Daniel Patrick · CIK 0001638643 · Director · Chairman & CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 581,203

F1 · kind: The transactions reported in this Form 4 are made pursuant to a Rule 10b5-1 trading plan adopted on February 28, 2025.

F3 · price: Sale prices for the transactions reported range from $118.61 to $119.06. Full information regarding the number of shares purchased or sold at each separate price will be provided to the SEC, the issuer, or its shareowners upon request.

Read SEC document
October 28, 2025 Filed Oct 29, 2025 20:14 UTC GILEAD SCIENCES, INC. GILD · Entity 405 SaleCommon Stock 7,978 $119.54 $953,666.98
Disclosure

SEC source: 0001638643-25-000011 · wk-form4_1761768857.xml · nonDerivative · entry 1

O'Day Daniel Patrick · CIK 0001638643 · Director · Chairman & CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 583,225

F1 · kind: The transactions reported in this Form 4 are made pursuant to a Rule 10b5-1 trading plan adopted on February 28, 2025.

F2 · price: Sale prices for the transactions reported range from $119.08 to $120.06. Full information regarding the number of shares purchased or sold at each separate price will be provided to the SEC, the issuer, or its shareowners upon request.

Read SEC document
September 29, 2025 Filed Sep 30, 2025 20:57 UTC GILEAD SCIENCES, INC. GILD · Entity 405 SaleCommon Stock 1,961 $112.42 $220,454.25
Disclosure

SEC source: 0001638643-25-000009 · wk-form4_1759265862.xml · nonDerivative · entry 2

O'Day Daniel Patrick · CIK 0001638643 · Director · Chairman & CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 591,203

F1 · kind: The transaction reported in this Form 4 is made pursuant to a Rule 10b5-1 trading plan adopted on February 28, 2025.

F3 · price: Sale prices reported for the transactions reported here range from $112.00 to $112.55. Full information regarding the number of shares purchased or sold at each separate price will be provided to the SEC, the issuer or its shareowners upon request.

Read SEC document

Value uses the disclosed total when available, otherwise shares × reported transaction price. It is not an estimate of exercise cash cost or investment performance.