Lam Research EVP receives 63,345 performance shares

Lam Research executive Patrick J. Lord reported the vesting of a performance-based equity award.

Rhea-AI Filing Summary

Lam Research executive Patrick J. Lord reported the vesting of a performance-based equity award. On 02/03/2026, he acquired 63,345 shares of Lam Research common stock at a price of $0 per share through a transaction coded "M," reflecting the settlement of Market-based Performance Restricted Stock Units originally granted on 03/01/2023.

Following this transaction, Lord directly beneficially owned 138,803 common shares, an amount that includes shares subject to unvested restricted stock units. The 2023 award’s payout is tied to Lam Research’s total shareholder return versus the PHLX Semiconductor total return index over a performance period from 02/01/2023 through 01/31/2026.

Insider Trade Summary

42,230 shares exercised/converted

Exercise 2 txns

Insider LORD PATRICK J

Role Executive Vice President

Type	Security	Shares	Price	Value
Exercise	Market-based Performance Restricted Stock Unit	42,230	$0.00	$0.00
Exercise	Common Stock	63,345	$0.00	$0.00

Holdings After Transaction: Market-based Performance Restricted Stock Unit — 0 contracts (Direct); Common Stock — 138,803 shares (Direct)

Footnotes (3)

1. F1. On 03/01/2023, the Reporting Person received a grant of 42,230 Market-based Performance Restricted Stock Units vesting between 0% and 150% on 03/01/2026. The vesting of this award is based on the total return stock price performance of Lam Research shares (assuming reinvestment of dividends) relative to the market price performance of the PHLX Semiconductor Sector Total Return Index, comparing the 50-trading day trailing average closing price over the performance period from 02/01/2023 through 01/31/2026.
2. F2. The amount reported includes shares subject to unvested restricted stock units.
3. F3. The Market-based performance restricted stock units will vest between 0% and 150% on 03/01/2026. The performance of this award is based on the Lam Research Total Shareholder Return performance relative to the PHLX Semiconductor Total Return Index Total Shareholder Return during the performance period of 02/01/2023 through 01/31/2026.

FAQ

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What insider transaction did Lam Research (LRCX) report for Patrick J. Lord?

Lam Research Executive Vice President Patrick J. Lord reported acquiring 63,345 common shares on 02/03/2026 at $0 per share. The shares came from the vesting and settlement of previously granted Market-based Performance Restricted Stock Units linked to Lam Research’s relative total shareholder return.

How many Lam Research (LRCX) shares does Patrick J. Lord own after this Form 4?

After the 02/03/2026 transaction, Patrick J. Lord beneficially owned 138,803 Lam Research common shares directly. This figure includes shares that are still subject to unvested restricted stock units, as noted in the filing’s explanation of responses and footnotes.

What equity award type was involved in the Lam Research (LRCX) Form 4 filing?

The filing involves Market-based Performance Restricted Stock Units granted on 03/01/2023. Their vesting depends on Lam Research’s total shareholder return performance versus the PHLX Semiconductor total return index over a performance period running from 02/01/2023 through 01/31/2026.

What does transaction code "M" mean in the Lam Research (LRCX) Form 4?

Transaction code "M" indicates an exercise or conversion of a derivative security into common stock. Here, Market-based Performance Restricted Stock Units converted into 63,345 Lam Research common shares at $0 per share, with the derivative position reported as reduced to zero afterward.

How is performance measured for the Lam Research (LRCX) market-based RSUs?

Performance is measured using Lam Research’s total return stock price, assuming dividend reinvestment, compared to the PHLX Semiconductor Sector or Total Return Index. The filing specifies a performance period from 02/01/2023 through 01/31/2026, using 50-trading-day trailing average closing prices.

Does the Lam Research (LRCX) Form 4 mention unvested restricted stock units?

Yes. A footnote explains that the amount of Lam Research shares reported as beneficially owned includes shares subject to unvested restricted stock units. This clarifies that Lord’s 138,803 reported shares are a combination of vested and unvested equity-based holdings.

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Accepted by SEC EDGAR 02/05/2026 - 11:33 AM Learn about SEC filing dates

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

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

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^*

LORD PATRICK J

(Last) (First) (Middle)

C/O LAM RESEARCH CORPORATION

4650 CUSHING PARKWAY

(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)
	Executive Vice President

3. Date of Earliest Transaction (Month/Day/Year)
02/03/2026

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	02/03/2026		M		63,345(1)	A	$0	138,803(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	02/03/2026		M			42,230	(3)	(3)	Common Stock	42,230	$0	0	D

Explanation of Responses:

1. On 03/01/2023, the Reporting Person received a grant of 42,230 Market-based Performance Restricted Stock Units vesting between 0% and 150% on 03/01/2026. The vesting of this award is based on the total return stock price performance of Lam Research shares (assuming reinvestment of dividends) relative to the market price performance of the PHLX Semiconductor Sector Total Return Index, comparing the 50-trading day trailing average closing price over the performance period from 02/01/2023 through 01/31/2026.

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

3. The Market-based performance restricted stock units will vest between 0% and 150% on 03/01/2026. The performance of this award is based on the Lam Research Total Shareholder Return performance relative to the PHLX Semiconductor Total Return Index Total Shareholder Return during the performance period of 02/01/2023 through 01/31/2026.

Remarks:

	Marta Woods by Power of Attorney	02/05/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.