Lam Research: Timothy M. Archer proposes $7.13M sale

The notice also lists sales of 30,000 shares on August 6, 2026, and 30,000 shares on September 9, 2026.

Rhea-AI Filing Summary

Lam Research Corp. (LRCX) is named as issuer in a notice covering Timothy M. Archer’s proposed sale of 31,400 common shares, with an approximate sale date of October 23, 2026. Fidelity Brokerage Services LLC is listed as broker; the shares are described as acquired from the issuer through a stock option exercise for cash. The listed aggregate market value is $7,128,428.00.

Key Figures

Proposed sale: 31,400 shares Aggregate market value: $7,128,428.00 Shares sold: 30,000 shares +3 more

6 metrics

Proposed sale 31,400 shares Approximate sale date: October 23, 2026

Aggregate market value $7,128,428.00 Associated with the proposed sale

Shares sold 30,000 shares Sale listed for August 6, 2026

Aggregate value of shares sold $9,000,000.00 Sale listed for August 6, 2026

Shares sold 30,000 shares Sale listed for September 9, 2026

Aggregate value of shares sold $9,577,800.00 Sale listed for September 9, 2026

Key Terms

Rule 144, Stock Option Exercise, attorney-in-fact

3 terms

Rule 144 regulatory

"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.

Stock Option Exercise financial

"Stock Option Exercise"

A stock option exercise is the act of using a previously granted right to buy shares of a company's stock at a specific, predetermined price by paying that price and receiving the shares. It matters to investors because exercising changes who owns the shares (which can dilute existing ownership), can trigger taxable events and shift potential gains or losses, and affects voting power and the company’s outstanding share count—like turning a voucher into an actual product that becomes part of circulating supply.

attorney-in-fact regulatory

"as attorney-in-fact for Timothy Archer"

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.

FAQ

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

How many LRCX shares is Timothy M. Archer proposing to sell?

Timothy M. Archer’s notice lists a proposed sale of 31,400 common shares, with an approximate sale date of October 23, 2026. Fidelity Brokerage Services LLC is listed as the broker, and the shares are described as acquired from the issuer through a stock option exercise for cash.

What prior LRCX share sales are listed for Timothy M. Archer?

The notice lists a sale of 30,000 shares for $9,000,000.00 on August 6, 2026, and a sale of 30,000 shares for $9,577,800.00 on September 9, 2026.

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

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Available on EDGAR 10/23/2026 - 10:28 AM EDT Accepted by SEC EDGAR 10/23/2026 - 10:28 AM EDT 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	0001343600
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	ARCHER TIMOTHY
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
Relationship to Issuer	Director

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	31400	7128428.00	1249171000	10/23/2026	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	10/23/2026	Stock Option Exercise	Issuer			31400	10/23/2026	Cash

* 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

Name and Address of Seller	Title of Securities Sold	Date of Sale	Amount of Securities Sold	Gross Proceeds
Timothy M. Archer 4650 Cushing Parkway Fremont CA 94538	Common	08/06/2026	30000	9000000.00
Timothy M. Archer 4650 Cushing Parkway Fremont CA 94538	Common	09/09/2026	30000	9577800.00

144: Remarks and Signature

Remarks
Date of Notice	10/23/2026
Date of Plan Adoption or Giving of Instruction, If Relying on Rule 10b5-1	02/24/2026
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 Timothy Archer
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)