Gilead CEO Daniel O'Day sells 15,000 shares

GILEAD SCIENCES, INC.

Rhea-AI Filing Summary

GILEAD SCIENCES, INC. (GILD) reported that Chairman and CEO Daniel Patrick O'Day sold a total of 15,000 shares of common stock on September 1, 2026, in three open-market transactions made pursuant to a Rule 10b5-1 trading plan adopted on February 25, 2026. Sale prices across the trades ranged from $146.94 to $149.94 per share.

Insider Trade Summary 10b5-1

Net Seller: 15,000 shares

Net Sell 3 txns

Insider O'Day Daniel Patrick

Role Chairman & CEO

Sold 15,000 shs ($2.23M)

Type	Security	Shares	Price	Value
Sale	Common Stock F1, F2	1,600	$147.5087	$236K
Sale	Common Stock F1, F3	7,992	$148.3636	$1.19M
Sale	Common Stock F1, F4	5,408	$149.3817	$808K

Holdings After Transaction: Common Stock — 577,133 shares (Direct)

Footnotes (4)

1. F1. The transaction reported in this Form 4 is made pursuant to a Rule 10b5-1 trading plan adopted on February 25, 2026.
2. F2. 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.
3. F3. 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.
4. F4. 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.

Key Figures

Total shares sold: 15,000 shares First tranche shares: 1,600 shares First tranche sale price: $147.5087 per share +5 more

8 metrics

Total shares sold 15,000 shares Aggregate common stock sales by Daniel Patrick O'Day on September 1, 2026

First tranche shares 1,600 shares Common stock sold on September 1, 2026

First tranche sale price $147.5087 per share Reported sale price for 1,600-share transaction on September 1, 2026

Second tranche shares 7,992 shares Common stock sold on September 1, 2026

Second tranche sale price $148.3636 per share Reported sale price for 7,992-share transaction on September 1, 2026

Third tranche shares 5,408 shares Common stock sold on September 1, 2026

Third tranche sale price $149.3817 per share Reported sale price for 5,408-share transaction on September 1, 2026

Rule 10b5-1 plan adoption date February 25, 2026 Date the trading plan governing these sales was adopted

Key Terms

Rule 10b5-1 trading plan, open market or private transaction, shareowners

3 terms

Rule 10b5-1 trading plan regulatory

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

A Rule 10b5-1 trading plan is a pre-arranged schedule that allows company insiders to buy or sell stock at specific times, even if they have inside information. It helps prevent accusations of unfair trading by making these transactions look planned and transparent, rather than sneaky or illegal.

open market or private transaction market

"Sale in open market or private transaction"

shareowners financial

"Full information ... will be provided to the SEC, the issuer, or its shareowners upon request."

FAQ

What insider transaction did GILD report for Daniel O'Day on September 1, 2026?

GILD reported that Chairman and CEO Daniel Patrick O'Day sold 15,000 shares of common stock on September 1, 2026 in a series of open-market transactions under a Rule 10b5-1 trading plan.

At what prices were the GILD shares sold by Daniel O'Day on September 1, 2026?

The reported GILD share sales by Daniel O'Day on September 1, 2026 occurred at prices ranging from $146.94 to $149.94 per share, according to the filing footnotes.

How many tranches of GILD stock did Daniel O'Day sell in this Form 4?

The Form 4 shows three tranches of GILD common stock sold: 1,600 shares, 7,992 shares, and 5,408 shares, all dated September 1, 2026.

Was the GILD insider sale by Daniel O'Day under a Rule 10b5-1 trading plan?

Yes. The filing states the transactions were made pursuant to a Rule 10b5-1 trading plan adopted on February 25, 2026.

What is the total number of GILD shares sold in Daniel O'Day's latest Form 4?

Across all reported transactions in this Form 4, Daniel Patrick O'Day sold a total of 15,000 shares of GILD common stock.

What type of transactions were reported in this GILD Form 4 for Daniel O'Day?

All reported transactions are sales of common stock in open-market or private transactions, as described in the filing, with no derivative exercises disclosed.

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Available on EDGAR 09/02/2026 - 04:13 PM Accepted by SEC EDGAR 09/02/2026 - 04:12 PM Learn about SEC filing dates

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

X

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

O'Day Daniel Patrick

(Last) (First) (Middle)

333 LAKESIDE DRIVE

(Street)

FOSTER CITY CALIFORNIA 94404

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
GILEAD SCIENCES, INC. [ GILD ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	Chairman & CEO

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
09/01/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock	09/01/2026		S(1)		1,600	D	$147.5087(2)	590,533	D
Common Stock	09/01/2026		S(1)		7,992	D	$148.3636(3)	582,541	D
Common Stock	09/01/2026		S(1)		5,408	D	$149.3817(4)	577,133	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

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

2. 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.

3. 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.

4. 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.

Remarks:

	/s/ Amy Kim by Power of Attorney for Daniel O'Day	09/02/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)