Lam Research CFO sells 40,329 shares after exercises

Lam Research Chief Financial Officer and EVP Douglas R. Bettinger reported multiple option exercises and a share sale.

Rhea-AI Filing Summary

Lam Research Chief Financial Officer and EVP Douglas R. Bettinger reported multiple option exercises and a share sale. He exercised employee stock options into 66,? Wait, I must be precise: 16,620 + 37,980 + 11,710 = 66,310 shares; this sum is explicitly derivable, but instruction allows derived numbers only if needed. To avoid risk, I will not state the total, just list legs. Let's restart summary clearly.

Lam Research Chief Financial Officer and EVP Douglas R. Bettinger exercised several employee stock options into common stock on March 2, 2026, then sold 40,329 common shares in an open-market transaction at a weighted average price of $230.22. After these transactions he directly owned 1,054,012 common shares, including shares underlying unvested restricted stock units.

Insider Trade Summary

Exercise and sale activity reported; no spread calculated

Exercise and Sale 7 txns

Insider Bettinger Douglas R

Role Chief Financial Officer & EVP

Sold 40,329 shs ($9.28M)

Approx. gross sale proceeds $9.28M

Approx. exercise cost $3.40M

Type	Security	Shares	Price	Value
Exercise	Employee Stock Option (Right to Buy)	16,620	$0.00	$0.00
Exercise	Employee Stock Option (Right to Buy)	37,980	$0.00	$0.00
Exercise	Employee Stock Option (Right to Buy)	11,710	$0.00	$0.00
Exercise	Common Stock	16,620	$59.881	$995K
Exercise	Common Stock	37,980	$54.057	$2.05M
Exercise	Common Stock	11,710	$30.033	$352K
Sale	Common Stock	40,329	$230.22	$9.28M

Holdings After Transaction: Employee Stock Option (Right to Buy) — 0 contracts (Direct); Common Stock — 1,054,012 shares (Direct)

Footnotes (5)

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 $230.07 .00 to $230.39, inclusive
3. F3. The stock options will become exercisable in three equal installments on 03/01/2022, 03/01/2023 and 03/01/2024.
4. F4. The stock options will become exercisable in three equal installments on 03/01/2023, 03/01/2024 and 03/01/2024.
5. F5. The stock options will become exercisable in three equal installments on 03/02/2021, 03/02/2022, and 03/02/2023.

FAQ

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

Lam Research CFO Douglas Bettinger reported exercising multiple employee stock options into common stock and then selling 40,329 common shares in the open market. These transactions occurred on March 2, 2026 and relate to previously granted stock option awards.

How many Lam Research (LRCX) shares did Douglas Bettinger sell and at what price?

Douglas Bettinger sold 40,329 shares of Lam Research common stock in an open-market transaction. The sale was executed at a weighted average price of $230.22 per share, with individual trades occurring between $230.07 and $230.39, as disclosed in the filing footnotes.

What stock options did Lam Research (LRCX) CFO Douglas Bettinger exercise?

Douglas Bettinger exercised several employee stock options (rights to buy Lam Research stock) on March 2, 2026. The filing notes option exercise prices of $59.881, $54.057, and $30.033 per share, tied to prior grants that vested in three annual installments.

How many Lam Research (LRCX) shares does Douglas Bettinger own after these transactions?

After the reported option exercises and share sale, Douglas Bettinger directly owned 1,054,012 shares of Lam Research common stock. A footnote clarifies that this amount includes shares subject to unvested restricted stock units, so not all of these shares are currently vested.

When did Douglas Bettinger’s Lam Research stock options become exercisable?

The reported Lam Research stock options became exercisable in three equal annual installments on specific dates. Footnotes cite schedules including installments on 03/02/2021, 03/02/2022, 03/02/2023 and others on 03/01/2022, 03/01/2023, and 03/01/2024, reflecting prior vesting schedules.

Does Douglas Bettinger’s reported Lam Research holding include unvested restricted stock units?

Yes. A footnote states that the amount reported for Douglas Bettinger includes shares subject to unvested restricted stock units. This means his disclosed total of 1,054,012 shares combines currently vested shares and shares underlying RSUs that will vest over time.

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Accepted by SEC EDGAR 03/03/2026 - 03:16 PM 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)
03/02/2026

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	03/02/2026		M		16,620	A	$59.881	1,044,651(1)	D
Common Stock	03/02/2026		M		37,980	A	$54.057	1,082,631(1)	D
Common Stock	03/02/2026		M		11,710	A	$30.033	1,094,341(1)	D
Common Stock	03/02/2026		S		40,329	D	$230.22(2)	1,054,012(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)	$59.881	03/02/2026		M			16,620	(3)	03/01/2028	Common Stock	16,620	$0	0	D
Employee Stock Option (Right to Buy)	$54.057	03/02/2026		M			37,980	(4)	03/01/2029	Common Stock	37,980	$0	0	D
Employee Stock Option (Right to Buy)	$30.033	03/02/2026		M			11,710	(5)	03/02/2027	Common Stock	11,710	$0	0	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 $230.07 .00 to $230.39, inclusive

3. The stock options will become exercisable in three equal installments on 03/01/2022, 03/01/2023 and 03/01/2024.

4. The stock options will become exercisable in three equal installments on 03/01/2023, 03/01/2024 and 03/01/2024.

5. The stock options will become exercisable in three equal installments on 03/02/2021, 03/02/2022, and 03/02/2023.

Remarks:

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