Lam Research (NASDAQ: LRCX) officer proposes 5,000-share sale from 2026 vesting

Rhea-AI Filing Summary

LAM RESEARCH CORP (LRCX) has a notice of proposed sale under Rule 144 for common stock held for the account of officer Ava Harter. The filing indicates a plan to sell 5,000 shares of common stock, originating from restricted stock vesting on 08/05/2026, with Fidelity Brokerage Services LLC acting as broker.

Key Figures

Shares to be sold: 5,000 shares of common stock Vesting date: 08/05/2026 Form 144 date reference: 08/31/2026 +1 more

4 metrics

Shares to be sold 5,000 shares of common stock Amount of LAM RESEARCH CORP common stock covered by the Rule 144 notice

Vesting date 08/05/2026 Restricted stock vesting date associated with the shares to be sold

Form 144 date reference 08/31/2026 Date appearing in the Form 144 section headings and signature area

Person for whose account securities are to be sold Ava Harter (Officer) Named officer whose LAM RESEARCH CORP shares are covered by this notice

Key Terms

Rule 144, Restricted Stock Vesting, attorney-in-fact, compensation

4 terms

Rule 144 regulatory

"See the definition of "person" in paragraph (a) of Rule 144."

Rule 144 is a U.S. securities regulation that sets conditions under which restricted or insider-held shares can be legally resold to the public, such as required holding periods, availability of public information, limits on how much can be sold at once, and certain filing requirements. For investors it matters because it determines when previously locked-up shares can enter the market — like a release valve that can increase supply, affect share price, and signal insider intent.

Restricted Stock Vesting financial

"Common | 08/05/2026 | Restricted Stock Vesting | Issuer"

Restricted stock vesting is the timetable and conditions under which shares granted to employees or insiders become fully owned and can be sold, typically requiring continued work or meeting performance goals. It matters to investors because large blocks of shares can become tradable at once, which can change share supply and price, and because vesting aligns insiders’ incentives with the company’s long‑term performance—think of it like a timed unlock that both rewards and locks in key people.

attorney-in-fact regulatory

"as attorney-in-fact for Ava Harter"

An attorney-in-fact is the person or entity given legal authority through a power of attorney to act on behalf of another for specific tasks, such as signing documents, voting shares, or handling transactions. For investors, this matters because it lets a trusted representative make timely decisions or complete paperwork when the owner cannot, much like handing keys to someone to run errands on your behalf—so checks on scope and limits of that authority are important.

compensation financial

"5000 | 08/05/2026 | Compensation"

FAQ

What does this Form 144 filing mean for LRCX?

The filing reports that an officer, Ava Harter, has filed a notice under Rule 144 to potentially sell 5,000 shares of LAM RESEARCH CORP common stock. It is a disclosure of a proposed sale and does not by itself change the company’s operations or capital structure.

How many LRCX shares are covered by this Form 144?

The notice covers a proposed sale of 5,000 shares of LAM RESEARCH CORP common stock. This figure represents the amount of securities referenced in the Rule 144 filing for potential sale.

Who is selling the LRCX shares in this Form 144?

The securities are to be sold for the account of Ava Harter, identified as an officer. Fidelity Brokerage Services LLC is listed as the broker, and the Form 144 is signed by a representative acting as attorney-in-fact for her.

What is the source of the LRCX shares to be sold?

The shares are tied to Restricted Stock Vesting, with the vesting date listed as 08/05/2026. The filing describes the acquisition nature as compensation from the issuer.

On which market is the LRCX stock in this filing traded?

The common stock referenced in the Form 144 filing is listed as traded on NASDAQ. Fidelity Brokerage Services LLC is identified as the broker handling the potential sale.

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

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Available on EDGAR 08/31/2026 - 11:25 AM Accepted by SEC EDGAR 08/31/2026 - 11:24 AM Learn about SEC filing dates

Form 144 Filer Information	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 144 NOTICE OF PROPOSED SALE OF SECURITIES PURSUANT TO RULE 144 UNDER THE SECURITIES ACT OF 1933
FORM 144

144: Filer Information

Filer CIK	0001642415
Filer CCC	XXXXXXXX
Is this a LIVE or TEST Filing?	LIVE TEST
Submission Contact Information
Name
Phone
E-Mail Address

144: Issuer Information

Name of Issuer	LAM RESEARCH CORP
SEC File Number	000-12933
Address of Issuer	4650 CUSHING BLVD FREMONT CALIFORNIA 94538
Phone	5106590200
Name of Person for Whose Account the Securities are To Be Sold	Harter Ava
See the definition of "person" in paragraph (a) of Rule 144. Information is to be given not only as to the person for whose account the securities are to be sold but also as to all other persons included in that definition. In addition, information shall be given as to sales by all persons whose sales are required by paragraph (e) of Rule 144 to be aggregated with sales for the account of the person filing this notice.
Relationship to Issuer	Officer

144: Securities Information

Title of the Class of Securities To Be Sold	Name and Address of the Broker	Number of Shares or Other Units To Be Sold	Aggregate Market Value	Number of Shares or Other Units Outstanding	Approximate Date of Sale	Name the Securities Exchange
Common	Fidelity Brokerage Services LLC 900 Salem Street Smithfield RI 02917	5000	1512300.00	1251321000	08/31/2026	NASDAQ

Furnish the following information with respect to the acquisition of the securities to be sold and with respect to the payment of all or any part of the purchase price or other consideration therefor:

144: Securities To Be Sold

Title of the Class	Date you Acquired	Nature of Acquisition Transaction	Name of Person from Whom Acquired	Is this a Gift?	Date Donor Acquired	Amount of Securities Acquired	Date of Payment	Nature of Payment *
Common	08/05/2026	Restricted Stock Vesting	Issuer			5000	08/05/2026	Compensation

* If the securities were purchased and full payment therefor was not made in cash at the time of purchase, explain in the table or in a note thereto the nature of the consideration given. If the consideration consisted of any note or other obligation, or if payment was made in installments describe the arrangement and state when the note or other obligation was discharged in full or the last installment paid.

Furnish the following information as to all securities of the issuer sold during the past 3 months by the person for whose account the securities are to be sold.

144: Securities Sold During The Past 3 Months

Nothing to Report

144: Remarks and Signature

Remarks
Date of Notice	08/31/2026
Date of Plan Adoption or Giving of Instruction, If Relying on Rule 10b5-1	04/28/2026
ATTENTION:
The person for whose account the securities to which this notice relates are to be sold hereby represents by signing this notice that he does not know any material adverse information in regard to the current and prospective operations of the Issuer of the securities to be sold which has not been publicly disclosed. If such person has adopted a written trading plan or given trading instructions to satisfy Rule 10b5-1 under the Exchange Act, by signing the form and indicating the date that the plan was adopted or the instruction given, that person makes such representation as of the plan adoption or instruction date.
Signature	/s/ Daniel Tucci, as a duly authorized representative of Fidelity Brokerage Services LLC, as attorney-in-fact for Ava Harter
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)