Lam Research holder Timothy Archer plans $9.6M sale

A Lam Research Corp insider filed a Rule 144 notice to sell 30,000 common shares tied to a stock option exercise, with additional sales reported in the prior three months.

Available on EDGAR 09/09/2026 - 09:58 AM EDT Accepted by SEC EDGAR 09/09/2026 - 09:58 AM EDT Learn about SEC filing dates

Rhea-AI Filing Summary

LAM RESEARCH CORP (LRCX) has a planned sale of restricted securities by Timothy M. Archer under Rule 144. The notice covers the proposed sale of 30,000 shares of common stock through Fidelity Brokerage Services LLC, expected around September 9, 2026, in connection with a stock option exercise. Archer also reported Rule 144 sales of 30,000 shares on July 2, 2026 and 30,000 shares on August 6, 2026.

Key Figures

Shares to be sold: 30,000 shares Aggregate market value of proposed sale: $9,577,800 Shares outstanding: 1,251,321,000 shares +2 more

5 metrics

Shares to be sold 30,000 shares Proposed Rule 144 sale tied to stock option exercise around September 9, 2026

Aggregate market value of proposed sale $9,577,800 Value of 30,000 shares of Lam Research Corp common stock in planned Rule 144 sale

Shares outstanding 1,251,321,000 shares Lam Research Corp common shares outstanding referenced in the Rule 144 notice

Shares sold July 2, 2026 30,000 shares Rule 144 sale by Timothy Archer on July 2, 2026 valued at $11,700,300

Shares sold August 6, 2026 30,000 shares Rule 144 sale by Timothy Archer on August 6, 2026 valued at $9,000,000

Key Terms

Rule 144, stock option exercise, aggregate market value, Form 144

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.

stock option exercise financial

"Common | 09/09/2026 | Stock Option Exercise | Issuer"

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.

aggregate market value financial

"Common | Fidelity Brokerage Services LLC ... | 30000 | 9577800.00"

Aggregate market value is the combined price you would pay to buy all outstanding shares of a company or all companies in a group at current market prices — essentially the sum of each stock’s market capitalization. It matters to investors because it shows the overall size and weight of an investment or sector (like the total cost to buy every piece of a puzzle), helps compare scale across companies or markets, and influences index composition and risk exposure.

Form 144 regulatory

"144: Filer Information"

Form 144 is a document that investors must file with the government when they plan to sell a large number of shares of a company's stock. It helps ensure transparency so everyone knows how many shares are being sold and when, which can impact the stock's price.

FAQ

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

What does the Form 144 filing disclose for LRCX?

It discloses that Timothy M. Archer filed a Rule 144 notice to sell 30,000 shares of Lam Research Corp common stock, with an aggregate market value of $9,577,800, in connection with a stock option exercise expected around September 9, 2026.

How many LRCX shares is Timothy Archer planning to sell under this Form 144?

Timothy M. Archer plans to sell 30,000 shares of Lam Research Corp common stock. The notice lists an aggregate market value of $9,577,800 for these shares and identifies NASDAQ as the securities exchange.

What prior LRCX sales by Timothy Archer are listed in the last three months?

The filing lists two prior sales: 30,000 shares of common stock on July 2, 2026 with a value of $11,700,300, and 30,000 shares on August 6, 2026 with a value of $9,000,000.

What is the approximate date and method of the new LRCX sale?

The approximate date of sale is September 9, 2026. The securities are to be sold as part of a stock option exercise, with the form indicating a cash exercise and sales executed through Fidelity Brokerage Services LLC.

Who is executing the planned LRCX stock sale for Timothy Archer?

The planned sale of 30,000 shares of Lam Research Corp common stock is listed under the account at Fidelity Brokerage Services LLC, with the Form 144 signed by Corey Walter as a duly authorized representative and attorney-in-fact for Timothy M. Archer.

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

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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	30000	9577800.00	1251321000	09/09/2026	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	09/09/2026	Stock Option Exercise	Issuer			30000	09/09/2026	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 Archer 4650 Cushing Parkway Fremont CA 94538	Common	07/02/2026	30000	11700300.00
Timothy Archer 4650 Cushing Parkway Fremont CA 94538	Common	08/06/2026	30000	9000000.00

144: Remarks and Signature

Remarks
Date of Notice	09/09/2026
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/ Corey Walter, as a duly authorized representative of Fidelity Brokerage Services LLC, as attorney-in-fact for Timothy M. Archer
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)