[Form 4] ILLUMINA, INC. Insider Trading Activity

Rhea-AI Filing Summary

Jacob Thaysen, who is listed as Chief Executive Officer and a Director of Illumina, Inc. (ILMN), reported a sale of company stock on 10/05/2025. The filing shows 1,301 shares were disposed of at a price of $101.02 per share. After the transaction the reporting person beneficially owned 82,089 shares, held in a direct ownership form. The Form 4 was signed on 10/07/2025.

Positive

• Transparent reporting of insider sale with transaction date and price provided
• Significant retained ownership: 82,089 shares remain owned directly after the sale

Negative

• Insider sold shares: disposition of 1,301 shares could be viewed as reduced insider holdings

Insights

Corporate Governance Analyst

Company CEO sold 1,301 shares at $101.02, retaining 82,089 shares.

The transaction is a straightforward non-derivative sale by the reporting person, showing a reduction of 1,301 shares from the reporting person's direct holdings. This type of Form 4 records insider stock sales and updates beneficial ownership totals without indicating the reason for the sale.

The primary dependencies are the filing's explicit numbers: $101.02 price and 10/05/2025 trade date. Investors may note the change in insider holdings, but the filing contains no additional context about intent, planned trading programs, or material company events.

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

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^*

Thaysen Jacob

(Last) (First) (Middle)

5200 ILLUMINA WAY

(Street)

SAN DIEGO CA 92122

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
ILLUMINA, INC. [ ILMN ]

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

X	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	Chief Executive Officer

3. Date of Earliest Transaction (Month/Day/Year)
10/05/2025

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	10/05/2025		F		1,301	D	$101.02	82,089	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:

	By: Robert Maynes for Jacob Thaysen	10/07/2025
	** 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

What did ILMN insider Jacob Thaysen sell on 10/05/2025?

The filing reports a sale of 1,301 shares of common stock at $101.02 per share on 10/05/2025.

How many Illumina (ILMN) shares does Jacob Thaysen own after the sale?

After the reported transaction the reporting person beneficially owned 82,089 shares, held directly.

What is the reporting person's role at Illumina in this Form 4?

The Form 4 lists the reporting person as both a Director and the Chief Executive Officer.

When was the Form 4 for this transaction signed?

The signature block shows the Form 4 was signed on 10/07/2025.

Does the Form 4 show any derivative transactions for this reporting person?

No. Table II lists no derivative securities; only a non-derivative sale of common stock is reported.