Lam Research director plans $3.0M stock sale

LAM RESEARCH CORP (LRCX) discloses a planned sale of its common stock under Rule 144 for the account of Bethany Mayer, a director, with the Jantzen/Mayer Family 2002 Trust as seller and Bethany Mayer as trustee.

Available on EDGAR 09/09/2026 - 04:52 PM EDT Accepted by SEC EDGAR 09/09/2026 - 04:52 PM EDT Learn about SEC filing dates

Rhea-AI Filing Summary

LAM RESEARCH CORP (LRCX) discloses a planned sale of its common stock under Rule 144 for the account of Bethany Mayer, a director, with the Jantzen/Mayer Family 2002 Trust as seller and Bethany Mayer as trustee. The notice covers 9,557 shares of common stock, with an aggregate market value of $3,007,970.18, planned for sale on September 9, 2026 through UBS Financial Services Inc. The shares relate to multiple prior RSU vesting events between October 31, 2021 and October 31, 2025.

Key Figures

Shares to be sold: 9,557 shares Aggregate market value: $3,007,970.18 Planned sale date: September 9, 2026 +4 more

7 metrics

Shares to be sold 9,557 shares Common Class A shares covered by the Rule 144 notice

Aggregate market value $3,007,970.18 Total market value of 9,557 LRCX shares to be sold

Planned sale date September 9, 2026 Date listed for sale of LRCX shares on NASDAQ

RSU vesting 2021 5,100 shares Common Class A acquired via RSU vest on October 31, 2021

RSU vesting 2023 5,630 shares Common Class A acquired via RSU vest on October 31, 2023

RSU vesting 2024 2,030 shares Common Class A acquired via RSU vest on October 31, 2024

RSU vesting 2025 1,622 shares Common Class A acquired via RSU vest on October 31, 2025

Key Terms

Rule 144, RSU VEST, attorney-in-fact, Director, +1 more

5 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.

RSU VEST financial

"COMMON CLASS A | 10/31/2021 | RSU VEST | ISSUER"

attorney-in-fact regulatory

"as attorney-in-fact for BETHANY MAYER"

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.

Director other

"Director 144: Securities Information"

Trustee other

"BETHANY IS TRUSTEE ON THE TRUST."

A trustee is a person or institution legally appointed to hold and manage assets or enforce an agreement on behalf of other people (beneficiaries). Think of a trustee as a neutral referee or custodian who must act in the beneficiaries’ best interests, follow the trust or contract rules, and handle distributions, recordkeeping and enforcement. Investors care because a trustworthy trustee protects their rights, ensures promised payments or remedies are delivered, and can influence recoveries if things go wrong.

FAQ

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

What does the Form 144 filing disclose for LRCX?

The filing discloses a planned Rule 144 sale of 9,557 shares of LAM RESEARCH CORP common stock for an aggregate market value of $3,007,970.18, with a planned sale date of September 9, 2026 through UBS Financial Services Inc.

Who is selling the LRCX shares in this Form 144 notice?

The seller is the Jantzen/Mayer Family 2002 Trust. Bethany Mayer, a director of LAM RESEARCH CORP, is the trustee, and the notice is filed for her account, with UBS Financial Services Inc acting as attorney-in-fact for Bethany Mayer.

How many LRCX shares are planned to be sold and at what value?

The notice covers 9,557 shares of LRCX common stock with an aggregate market value of $3,007,970.18. These shares are to be sold on NASDAQ through UBS Financial Services Inc as indicated in the Form 144 filing.

What is the planned sale date for the LRCX shares in this Form 144?

The planned sale date for the 9,557 LRCX shares is September 9, 2026. The filing lists NASDAQ as the trading market and UBS Financial Services Inc as the broker handling the transaction.

How were the LRCX shares in this Form 144 acquired?

The filing links the shares to multiple RSU vesting events in LAM RESEARCH CORP common stock on October 31, 2021 (5,100 shares), October 31, 2023 (5,630 shares), October 31, 2024 (2,030 shares), and October 31, 2025 (1,622 shares), all from the issuer.

Were any LRCX shares sold by this seller in the past three months?

The Form 144 section for Securities Sold During The Past 3 Months does not report any transactions, indicating no LAM RESEARCH CORP shares by this seller are listed as sold in that recent period.

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	0001405693
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 PKWY FREMONT CALIFORNIA 94538
Phone	5105720200
Name of Person for Whose Account the Securities are To Be Sold	BETHANY MAYER
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	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 CLASS A	UBS Financial Services Inc 1000 Harbor Blvd 3rd Floor Weehawken NJ 07086	9557	3007970.18	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 CLASS A	10/31/2021	RSU VEST	ISSUER			5100	10/31/2021	N/A
COMMON CLASS A	10/31/2023	RSU VEST	ISSUER			5630	10/31/2023	N/A
COMMON CLASS A	10/31/2024	RSU VEST	ISSUER			2030	10/31/2024	N/A
COMMON CLASS A	10/31/2025	RSU VEST	ISSUER			1622	10/31/2025	N/A

* 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	BETHANY MAYER IS A DIRECTOR AT LRCX BUT THE JANTZEN/MAYER FAMILY 2002 TRUST IS THE SELLER. BETHANY IS TRUSTEE ON THE TRUST.
Date of Notice	09/09/2026
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/JOSEPH CASSIDY, for UBS Financial Services Inc, as attorney-in-fact for BETHANY MAYER
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)