TIMOTHY ARCHER - 04 Feb 2026 Form 4 Insider Report for LAM RESEARCH CORP (LRCX)

Role
President and CEO
Signature
Marta Woods by Power of Attorney
Issuer symbol
LRCX
Transactions as of
04 Feb 2026
Net transactions value
$0
Form type
4
Filing time
05 Feb 2026, 11:30:08 UTC
Previous filing
18 Dec 2025
Next filing
25 Feb 2026
SEC
View on sec.gov

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
ARCHER TIMOTHY President and CEO 4650 CUSHING PARKWAY, FREMONT Marta Woods by Power of Attorney 05 Feb 2026 0001343600

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction LRCX Common Stock Options Exercise $0 +271,530 +29% $0.000000 1,203,939 04 Feb 2026 Direct F1, F2
holding LRCX Common Stock 48,026 04 Feb 2026 By 401(k)
holding LRCX Common Stock 5,670 04 Feb 2026 By Spouse 401(k)

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Underlying Class Amount Exercise Price Ownership Footnotes
transaction LRCX Market-based Performance Restricted Stock Unit Options Exercise $0 -181,020 -100% $0.000000 0 04 Feb 2026 Common Stock 181,020 $0.000000 Direct F3
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 On 03/01/2023, the Reporting Person received a grant of 181,020 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.
F2 The amount reported includes shares subject to unvested restricted stock units.
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.