Lam Research CFO exercises options, sells 50,057

Lam Research Chief Financial Officer & EVP Douglas R. Bettinger reported multiple stock transactions.

Rhea-AI Filing Summary

Lam Research Chief Financial Officer & EVP Douglas R. Bettinger reported multiple stock transactions. He exercised employee stock options for 51,270 shares at $49.092 and 26,480 shares at $98.153, receiving an equivalent number of common shares. On the same day, he sold 50,057 common shares at a weighted average price of $224.03, in transactions between $223.90 and $224.39. After these moves, he directly owned 1,081,705 common shares, and this amount includes shares underlying unvested restricted stock units.

Insider Trade Summary

Exercise and sale activity reported; no spread calculated

Exercise and Sale 5 txns

Insider Bettinger Douglas R

Role Chief Financial Officer & EVP

Sold 50,057 shs ($11.21M)

Approx. gross sale proceeds $11.21M

Approx. exercise cost $5.12M

Type	Security	Shares	Price	Value
Exercise	Employee Stock Option (Right to Buy)	51,270	$0.00	$0.00
Exercise	Employee Stock Option (Right to Buy)	26,480	$0.00	$0.00
Exercise	Common Stock	51,270	$49.092	$2.52M
Exercise	Common Stock	26,480	$98.153	$2.60M
Sale	Common Stock	50,057	$224.03	$11.21M

Holdings After Transaction: Employee Stock Option (Right to Buy) — 13,240 contracts (Direct); Common Stock — 1,081,705 shares (Direct)

Footnotes (4)

1. F1. The amount reported includes shares subject to unvested restricted stock units.
2. F2. The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $223.90 to $224.39, inclusive
3. F3. The stock options will become exercisable in three equal installments on 03/01/2024, 03/01/2025 and 03/01/2026.
4. F4. The stock options will become exercisable in three equal installments on 03/01/2025, 03/01/2026, and 03/01/2027.

FAQ

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

What did Lam Research (LRCX) CFO Douglas Bettinger report in this Form 4?

Douglas Bettinger reported exercising employee stock options and selling common shares. He converted options into 77,750 common shares and sold 50,057 shares, updating his direct ownership position in Lam Research common stock.

How many Lam Research shares did the CFO sell in this Form 4 filing?

Douglas Bettinger sold 50,057 Lam Research common shares. The Form 4 states these were sold at a weighted average price of $224.03 per share, with individual trades occurring between $223.90 and $224.39.

What option exercises did the Lam Research CFO report for LRCX stock?

He exercised two employee stock option grants, covering 51,270 shares at $49.092 and 26,480 shares at $98.153. These exercises converted derivative securities into Lam Research common stock as part of his equity compensation.

What is Douglas Bettinger’s Lam Research share ownership after these transactions?

After the reported trades, Douglas Bettinger directly owned 1,081,705 Lam Research common shares. The filing notes this total includes shares that are subject to unvested restricted stock units awarded to him.

Were the Lam Research CFO’s share sales in this Form 4 at a single price?

No, the filing reports a weighted average sale price of $224.03 per share. It explains that the 50,057 shares were sold in multiple transactions at prices ranging from $223.90 to $224.39.

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

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Accepted by SEC EDGAR 03/05/2026 - 01:49 PM EST 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^*

Bettinger Douglas R

(Last) (First) (Middle)

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)
	Chief Financial Officer & EVP

3. Date of Earliest Transaction (Month/Day/Year)
03/04/2026

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	03/04/2026		M		51,270	A	$49.092	1,105,282(1)	D
Common Stock	03/04/2026		M		26,480	A	$98.153	1,131,762(1)	D
Common Stock	03/04/2026		S		50,057	D	$224.03(2)	1,081,705(1)	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
Employee Stock Option (Right to Buy)	$49.092	03/04/2026		M			51,270	(3)	03/01/2030	Common Stock	51,270	$0	0	D
Employee Stock Option (Right to Buy)	$98.153	03/04/2026		M			26,480	(4)	03/01/2031	Common Stock	26,480	$0	13,240	D

Explanation of Responses:

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

2. The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $223.90 to $224.39, inclusive

3. The stock options will become exercisable in three equal installments on 03/01/2024, 03/01/2025 and 03/01/2026.

4. The stock options will become exercisable in three equal installments on 03/01/2025, 03/01/2026, and 03/01/2027.

Remarks:

	Marta Woods by Power of Attorney	03/05/2026
	** 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.