Lam Research Corp (LRCX) officer receives RSU awards and tax withholdings

Rhea-AI Filing Summary

Lam Research Corp executive Christina Correia, the company's CVP and Chief Accounting Officer, reported multiple equity-related transactions dated February 27, 2026. She was granted 1,362 Market-based Performance Restricted Stock Units, which will vest between 0% and 150% on February 27, 2029 based on Lam Research's total shareholder return performance.

She also acquired 3,180 shares of common stock and another 12,979 shares of common stock through restricted stock unit awards. These restricted stock units vest in three installments on February 27, 2027, February 27, 2028, and February 27, 2029, with one award vesting 25%, 25%, and 50% on those dates. Several additional transactions labeled code F represent shares of common stock automatically withheld at a price of $233.89 per share to cover tax withholding obligations upon vesting. After these transactions, Correia directly owned 58,589 shares of common stock, including shares subject to unvested restricted stock units.

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

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Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

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^*

Correia Christina

(Last) (First) (Middle)

4650 CUSHING PKWY

(Street)

FREMONT CA 94538

(City) (State) (Zip)

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)
	CVP , Chief Accounting Officer

3. Date of Earliest Transaction (Month/Day/Year)
02/27/2026

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

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	02/27/2026		A		3,180(1)	A	$0	63,817(2)	D
Common Stock	02/27/2026		A		12,979(3)	A	$0	76,796(2)	D
Common Stock	02/27/2026		F		4,306(4)	D	$233.89	72,490(2)	D
Common Stock	02/27/2026		F		996(4)	D	$233.89	71,494(2)	D
Common Stock	02/27/2026		F		11,963(4)	D	$233.89	59,531(2)	D
Common Stock	02/27/2026		F		942(4)	D	$233.89	58,589(2)	D
Common Stock	02/27/2026		F		1,421(4)	D	$233.89	57,168(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
Market-based Performance Restricted Stock Unit	$0	02/27/2026		A		1,362		(5)	(5)	Common Stock	1,362	$0	1,362	D

Explanation of Responses:

1. The restricted stock units will vest in three equal installments on 02/27/2027, 02/27/2028, and 02/27/2029.

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

3. The restricted stock units will vest in three installments 25% on 02/27/2027, 25% on 02/27/2028, and 50% on 02/27/2029.

4. Represents shares that were automatically withheld upon vesting of restricted stock units to satisfy tax withholding obligations.

5. The Market-based performance restricted stock units will vest between 0% and 150% on 2/27/2029. The performance of this award is based on the percentile ranking of Lam Research's Total Shareholder Return relative to the Total Shareholder Return of the companies in the PHLX Semiconductor Total Return Index during the performance period of 02/2/2026 through 02/01/2029.

Remarks:

	Marta Woods by Power of Attorney	03/02/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
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FAQ

What insider transactions did Christina Correia report for LRCX?

Christina Correia reported a mix of equity grants and tax-related dispositions on Lam Research Corp stock. She received new restricted stock unit awards and had shares automatically withheld to cover tax obligations when earlier awards vested, while her direct common stock ownership remained substantial after the transactions.

How many Lam Research (LRCX) performance RSUs were granted to Christina Correia?

Christina Correia received 1,362 Market-based Performance Restricted Stock Units tied to Lam Research's total shareholder return. These units can vest between 0% and 150% on February 27, 2029, depending on Lam Research's performance versus the PHLX Semiconductor Total Return Index during the stated measurement period.

When will Christina Correia’s LRCX restricted stock units vest?

Her time-based restricted stock units vest in three equal or specified installments on February 27, 2027, February 27, 2028, and February 27, 2029. The market-based performance units vest on February 27, 2029, with the actual payout percentage driven by Lam Research’s relative total shareholder return performance.

Were any of Christina Correia’s LRCX share disposals open-market sales?

No, the reported share disposals were tax-withholding events, not open-market sales. Shares of common stock were automatically withheld at a price of $233.89 per share to satisfy tax liabilities triggered by the vesting of previously granted restricted stock unit awards.

How many LRCX common shares does Christina Correia own after these Form 4 transactions?

After the reported transactions, Christina Correia directly owned 58,589 shares of Lam Research common stock. This figure includes shares underlying unvested restricted stock units, reflecting both existing holdings and recently granted equity awards that may vest over the next several years.

What performance conditions apply to Christina Correia’s LRCX market-based RSUs?

The market-based restricted stock units vest between 0% and 150% on February 27, 2029. Vesting depends on Lam Research’s total shareholder return ranking relative to companies in the PHLX Semiconductor Total Return Index over the performance period from February 2, 2026, through February 1, 2029.