Lam Research legal chief sells 5,000 shares at $302.46

LAM RESEARCH CORP (LRCX) reported an insider transaction by Chief Legal Officer Ava Harter.

Rhea-AI Filing Summary

LAM RESEARCH CORP (LRCX) reported an insider transaction by Chief Legal Officer Ava Harter. On August 31, 2026, Harter sold 5,000 shares of common stock at $302.46 per share in an open market or private transaction pursuant to a Rule 10b5-1 trading plan adopted on April 28, 2026. Following this sale, Harter directly holds 42,462.455 shares of Lam Research common stock, and this amount includes shares subject to unvested restricted stock units.

Insider Trade Summary 10b5-1

Net Seller: 5,000 shares

Net Sell 1 txn

Insider Harter Ava

Role Chief Legal Officer

Sold 5,000 shs ($1.51M)

Type	Security	Shares	Price	Value
Sale	Common Stock F1, F2	5,000	$302.46	$1.51M

Holdings After Transaction: Common Stock — 42,462.455 shares (Direct)

Footnotes (2)

1. F1. This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on April 28, 2026.
2. F2. The amount reported includes shares subject to unvested restricted stock units.

Key Figures

Shares sold: 5,000 shares Sale price per share: $302.46 per share Shares owned after transaction: 42,462.455 shares +2 more

5 metrics

Shares sold 5,000 shares Common stock sale by Ava Harter on August 31, 2026

Sale price per share $302.46 per share Price for the 5,000 LAM RESEARCH CORP shares sold

Shares owned after transaction 42,462.455 shares Direct holdings of Ava Harter after the sale, including unvested RSUs

Rule 10b5-1 plan adoption date April 28, 2026 Date Ava Harter adopted the trading plan governing this sale

Net shares sold reported in Form 4 5,000 shares Net sell direction in transaction summary

Key Terms

Rule 10b5-1 trading plan, restricted stock units, Chief Legal Officer

3 terms

Rule 10b5-1 trading plan regulatory

"This transaction was effected pursuant to a Rule 10b5-1 trading plan"

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.

restricted stock units financial

"The amount reported includes shares subject to unvested restricted stock units"

Restricted stock units are a type of company reward where employees are promised shares of stock, but they only fully own these shares after meeting certain conditions, like staying with the company for a set time. They matter because they can become valuable assets and are often used to motivate employees to help the company succeed.

Chief Legal Officer other

"Harter Ava serves as Chief Legal Officer of LAM RESEARCH CORP"

A chief legal officer is a senior executive responsible for overseeing a company's legal matters, ensuring that its activities comply with laws and regulations. They act like a company's legal guide, helping to prevent legal problems and manage risks. For investors, understanding this role is important because it reflects how well a company manages legal risks that could impact its stability and reputation.

FAQ

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

What insider transaction did LRCX report for Ava Harter?

LAM RESEARCH CORP reported that Chief Legal Officer Ava Harter sold 5,000 shares of common stock on August 31, 2026 in a sale classified as an open market or private transaction at a price of $302.46 per share.

How many LRCX shares does Ava Harter hold after this Form 4 transaction?

After the reported sale, Ava Harter directly holds 42,462.455 shares of Lam Research Corp common stock. The filing states that this amount includes shares subject to unvested restricted stock units.

Was the LRCX insider sale by Ava Harter under a Rule 10b5-1 plan?

Yes. The filing notes that the transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by Ava Harter on April 28, 2026, indicating the sale was pre-arranged under that plan.

What was the sale price for the LRCX shares sold by Ava Harter?

The 5,000 Lam Research Corp shares sold by Ava Harter on August 31, 2026 were transacted at a price of $302.46 per share, according to the Form 4 filing.

Does Ava Harter’s remaining LRCX position include unvested RSUs?

Yes. A footnote in the filing specifies that the 42,462.455 shares reported as held after the transaction include shares subject to unvested restricted stock units.

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

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Available on EDGAR 09/01/2026 - 12:08 PM EDT Accepted by SEC EDGAR 09/01/2026 - 12:08 PM EDT 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^*

Harter Ava

(Last) (First) (Middle)

4650 CUSHING PKWY

(Street)

FREMONT CALIFORNIA 94538

(City) (State) (Zip)

UNITED STATES

(Country)

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)
	Chief Legal Officer

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
08/31/2026

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	08/31/2026		S		5,000(1)	D	$302.46	42,462.455(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 April 28, 2026.

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

Remarks:

	Marta Woods by Power of Attorney	09/01/2026
	** 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)