[Form 4] Gilead Sciences Inc Insider Trading Activity

Rhea-AI Filing Summary

Gilead Sciences (GILD) – Form 4 insider transaction: Chairman & CEO Daniel P. O’Day sold a total of 10,000 common shares on 28 Jul 2025 under a Rule 10b5-1 trading plan adopted 28 Feb 2025.

• Sales executed in two blocks: 1,655 sh @ $113.17 avg and 8,345 sh @ $114.09 avg, implying total proceeds of roughly $1.13 million.
• Post-sale direct ownership falls to 605,725 shares, down ~1.6 % from 615,725 pre-trade.
• No derivative transactions were reported.

The modest size and pre-planned nature of the sale suggest limited informational value, but investors often monitor CEO transactions for sentiment cues.

Positive

• CEO retains 605,725 shares, maintaining strong equity alignment with shareholders.

Negative

• Insider selling by the CEO (10,000 shares) can be perceived as a mild negative sentiment signal, even if pre-planned.

Insights

Securities Analyst

TL;DR: Small, pre-planned CEO sale; neutral signal.

O’Day’s 10k-share sale represents <2 % of his stake and was executed under a 10b5-1 plan, limiting discretionary timing. With >600k shares still held, alignment with shareholders remains high. The dollar amount is immaterial to GILD’s $140 bn market cap, so trading liquidity and valuation impact are negligible. I view this filing as routine and do not change my model or rating.

Corporate Governance Expert

TL;DR: Governance-compliant sale; watch pattern, not event.

The filing reflects good governance: advance 10b5-1 adoption and transparent price ranges. Frequency and aggregate volume of future sales will matter more than this isolated transaction. No red flags on ownership commitment; O’Day retains substantial skin in the game.

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).

1. Name and Address of Reporting Person^*

O'Day Daniel Patrick

(Last) (First) (Middle)

333 LAKESIDE DRIVE

(Street)

FOSTER CITY CA 94404

(City) (State) (Zip)

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

3. Date of Earliest Transaction (Month/Day/Year)
07/28/2025

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

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

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

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	07/28/2025		S(1)		1,655	D	$113.1678(2)	614,070	D
Common Stock	07/28/2025		S(1)		8,345	D	$114.0895(3)	605,725	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 28, 2025.

2. Sale prices reported for the transactions reported here range from $112.71 to $113.59. 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.

3. Sale prices reported for the transactions reported here range from $113.71 to $114.56. 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.

	/s/ Edward S. Son by Power of Attorney for Daniel P. O'Day	07/29/2025
	** 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.

FAQ

How many GILD shares did CEO Daniel O’Day sell?

He sold 10,000 common shares on 28 Jul 2025.

What were the sale prices for the GILD insider transaction?

Average prices were $113.17 for 1,655 shares and $114.09 for 8,345 shares.

Was the sale executed under a 10b5-1 plan?

Yes, the trades were made pursuant to a Rule 10b5-1 plan adopted on 28 Feb 2025.

How many Gilead shares does the CEO now own?

After the sale, Daniel O’Day directly owns 605,725 shares of GILD.

Does this filing indicate a major change in insider ownership?

No, the sale reduced holdings by ~1.6 %, a relatively small change.