Lam Research SVP sells 52,190 shares at $138.9 under 10b5-1

Lam Research (LRCX): Insider transaction disclosed.

Accepted by SEC EDGAR 10/14/2025 - 11:40 AM EDT Learn about SEC filing dates

Rhea-AI Filing Summary

Lam Research (LRCX): Insider transaction disclosed. A Senior Vice President reported an open‑market sale of 52,190 shares of common stock on 10/13/2025 at $138.9 per share (Transaction Code: S). The filing states the trade was effected under a Rule 10b5-1 trading plan adopted on June 11, 2025.

Following the sale, the officer beneficially owns 251,047 shares, held directly. The reported total includes shares subject to unvested restricted stock units. This filing reflects a personal share sale and ownership update by a company officer.

Insider Trade Summary

Net Seller: 52,190 shares

Net Sell 1 txn

Insider Vahedi Vahid

Role Senior Vice President

Sold 52,190 shs ($7.25M)

Share of Position Sold 17.2%

Type	Security	Shares	Price	Value
Sale	Common Stock	52,190	$138.90	$7.25M

Holdings After Transaction: Common Stock — 251,047 shares (Direct)

Holdings Before and After: Common Stock, 303,237 to 251,047 shares (Direct)

Footnotes (2)

1. F1. This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on June 11, 2025.
2. F2. The amount reported includes shares subject to unvested restricted stock units.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What did LRCX’s officer report on Form 4?

A Senior Vice President reported selling 52,190 shares of common stock on 10/13/2025 at $138.9 per share (Code S).

Was the LRCX trade under a 10b5-1 plan?

Yes. The sale was effected under a Rule 10b5-1 plan adopted on June 11, 2025.

How many LRCX shares does the officer own after the sale?

Post-transaction beneficial ownership is 251,047 shares, held directly.

Does the reported LRCX ownership include RSUs?

Yes. The amount reported includes shares subject to unvested restricted stock units.

What was the transaction code and nature of the LRCX trade?

The transaction code was S, indicating an open-market sale.

What is the reporting person’s relationship to LRCX?

The reporting person is an Officer serving as Senior Vice President.

AI-generated analysis. How Rhea-AI works. Not financial advice.

Form 4 Insider Transactions: What Each Field Means →

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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^*

Vahedi Vahid

(Last) (First) (Middle)

C/O LAM RESEARCH CORPORATION

4650 CUSHING PARKWAY

(Street)

FREMONT CA 94538

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
LAM RESEARCH CORP [ LRCX ]

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

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	Senior Vice President

3. Date of Earliest Transaction (Month/Day/Year)
10/13/2025

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	10/13/2025		S		52,190(1)	D	$138.9	251,047(2)	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. This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on June 11, 2025.

2. The amount reported includes shares subject to unvested restricted stock units.

Remarks:

	Marta Woods by Power of Attorney	10/14/2025
	** 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.