=== SEC Form 4 — Statement of Changes in Beneficial Ownership ===
Document Type: 4
Period of Report: 2026-06-11
10b5-1 Pre-arranged Plan: Yes
--- Issuer ---
Name: LAM RESEARCH CORP (LRCX)
CIK: 0000707549
--- Reporting Owner ---
Name: BRANDT ERIC
CIK: 0001190639
Role: Director
--- Non-Derivative Transactions ---
[Transaction #1]
Security: Common Stock
Date: 2026-06-11 | Code: S (Open market sale)
Shares: -974 | Price: $337.56
Total Value: $328,783.44
Shares Owned After: 252,731 | Ownership: D (Direct)
Footnotes:
[F1] This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on February 6, 2026.
[F2] The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $337.00 to $337.97, inclusive
[F3] The amount reported includes shares subject to unvested restricted stock units.
[Transaction #2]
Security: Common Stock
Date: 2026-06-11 | Code: S (Open market sale)
Shares: -1,083 | Price: $338.62
Total Value: $366,725.46
Shares Owned After: 251,648 | Ownership: D (Direct)
Footnotes:
[F1] This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on February 6, 2026.
[F4] The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $338.19 to $339.15, inclusive
[F3] The amount reported includes shares subject to unvested restricted stock units.
[Transaction #3]
Security: Common Stock
Date: 2026-06-11 | Code: S (Open market sale)
Shares: -1,895 | Price: $339.75
Total Value: $643,826.25
Shares Owned After: 249,753 | Ownership: D (Direct)
Footnotes:
[F1] This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on February 6, 2026.
[F5] The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $339.23 to $340.20, inclusive
[F3] The amount reported includes shares subject to unvested restricted stock units.
[Transaction #4]
Security: Common Stock
Date: 2026-06-11 | Code: S (Open market sale)
Shares: -1,277 | Price: $340.68
Total Value: $435,048.36
Shares Owned After: 248,476 | Ownership: D (Direct)
Footnotes:
[F1] This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on February 6, 2026.
[F6] The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $340.278 to $341.249, inclusive
[F3] The amount reported includes shares subject to unvested restricted stock units.
[Transaction #5]
Security: Common Stock
Date: 2026-06-11 | Code: S (Open market sale)
Shares: -1,070 | Price: $341.81
Total Value: $365,736.70
Shares Owned After: 247,406 | Ownership: D (Direct)
Footnotes:
[F1] This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on February 6, 2026.
[F7] The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $341.418 to $342.202, inclusive
[F3] The amount reported includes shares subject to unvested restricted stock units.
[Transaction #6]
Security: Common Stock
Date: 2026-06-11 | Code: S (Open market sale)
Shares: -3,644 | Price: $342.91
Total Value: $1,249,564.04
Shares Owned After: 243,762 | Ownership: D (Direct)
Footnotes:
[F1] This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on February 6, 2026.
[F8] The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $342.415 to $343.39, inclusive
[F3] The amount reported includes shares subject to unvested restricted stock units.
[Transaction #7]
Security: Common Stock
Date: 2026-06-11 | Code: S (Open market sale)
Shares: -1,481 | Price: $343.96
Total Value: $509,404.76
Shares Owned After: 242,281 | Ownership: D (Direct)
Footnotes:
[F1] This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on February 6, 2026.
[F9] The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $343.40 to $344.377, inclusive
[F3] The amount reported includes shares subject to unvested restricted stock units.
[Transaction #8]
Security: Common Stock
Date: 2026-06-11 | Code: S (Open market sale)
Shares: -3,208 | Price: $344.92
Total Value: $1,106,503.36
Shares Owned After: 239,073 | Ownership: D (Direct)
Footnotes:
[F1] This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on February 6, 2026.
[F10] The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $344.396 to $345.348, inclusive
[F3] The amount reported includes shares subject to unvested restricted stock units.
[Transaction #9]
Security: Common Stock
Date: 2026-06-11 | Code: S (Open market sale)
Shares: -2,832 | Price: $345.84
Total Value: $979,418.88
Shares Owned After: 236,241 | Ownership: D (Direct)
Footnotes:
[F1] This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on February 6, 2026.
[F11] The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $345.386 to $346.336, inclusive
[F3] The amount reported includes shares subject to unvested restricted stock units.
[Transaction #10]
Security: Common Stock
Date: 2026-06-11 | Code: S (Open market sale)
Shares: -3,442 | Price: $346.79
Total Value: $1,193,651.18
Shares Owned After: 232,799 | Ownership: D (Direct)
Footnotes:
[F1] This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on February 6, 2026.
[F12] The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $346.383 to $347.359, inclusive
[F3] The amount reported includes shares subject to unvested restricted stock units.
[Transaction #11]
Security: Common Stock
Date: 2026-06-11 | Code: S (Open market sale)
Shares: -6,592 | Price: $347.86
Total Value: $2,293,093.12
Shares Owned After: 226,207 | Ownership: D (Direct)
Footnotes:
[F1] This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on February 6, 2026.
[F13] The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $347.383 to $348.355, inclusive
[F3] The amount reported includes shares subject to unvested restricted stock units.
[Transaction #12]
Security: Common Stock
Date: 2026-06-11 | Code: S (Open market sale)
Shares: -4,334 | Price: $348.73
Total Value: $1,511,395.82
Shares Owned After: 221,873 | Ownership: D (Direct)
Footnotes:
[F1] This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on February 6, 2026.
[F14] The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $348.391 to $349.351, inclusive
[F3] The amount reported includes shares subject to unvested restricted stock units.
[Transaction #13]
Security: Common Stock
Date: 2026-06-11 | Code: S (Open market sale)
Shares: -1,517 | Price: $349.79
Total Value: $530,631.43
Shares Owned After: 220,356 | Ownership: D (Direct)
Footnotes:
[F1] This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on February 6, 2026.
[F15] The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $349.409 to $350.260, inclusive
[F3] The amount reported includes shares subject to unvested restricted stock units.
[Transaction #14]
Security: Common Stock
Date: 2026-06-11 | Code: S (Open market sale)
Shares: -36 | Price: $350.77
Total Value: $12,627.72
Shares Owned After: 220,320 | Ownership: D (Direct)
Footnotes:
[F1] This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on February 6, 2026.
[F3] The amount reported includes shares subject to unvested restricted stock units.
[Transaction #15]
Security: Common Stock
Date: 2026-06-11 | Code: S (Open market sale)
Shares: -1,172 | Price: $353.52
Total Value: $414,325.44
Shares Owned After: 219,148 | Ownership: D (Direct)
Footnotes:
[F1] This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on February 6, 2026.
[F16] The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $352.824 to $353.805, inclusive
[F3] The amount reported includes shares subject to unvested restricted stock units.
[Transaction #16]
Security: Common Stock
Date: 2026-06-11 | Code: S (Open market sale)
Shares: -1,461 | Price: $354.08
Total Value: $517,310.88
Shares Owned After: 217,687 | Ownership: D (Direct)
Footnotes:
[F1] This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on February 6, 2026.
[F17] The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $353.818 to $354.743, inclusive
[F3] The amount reported includes shares subject to unvested restricted stock units.
[Transaction #17]
Security: Common Stock
Date: 2026-06-11 | Code: S (Open market sale)
Shares: -1,331 | Price: $355.50
Total Value: $473,170.50
Shares Owned After: 216,356 | Ownership: D (Direct)
Footnotes:
[F1] This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on February 6, 2026.
[F18] The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $354.805 to $355.746, inclusive
[F3] The amount reported includes shares subject to unvested restricted stock units.
[Transaction #18]
Security: Common Stock
Date: 2026-06-11 | Code: S (Open market sale)
Shares: -1,653 | Price: $356.27
Total Value: $588,914.31
Shares Owned After: 214,703 | Ownership: D (Direct)
Footnotes:
[F1] This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on February 6, 2026.
[F19] The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $355.75 to $356.709, inclusive
[F3] The amount reported includes shares subject to unvested restricted stock units.
[Transaction #19]
Security: Common Stock
Date: 2026-06-11 | Code: S (Open market sale)
Shares: -1,455 | Price: $357.06
Total Value: $519,522.30
Shares Owned After: 213,248 | Ownership: D (Direct)
Footnotes:
[F1] This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on February 6, 2026.
[F20] The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $356.759 to $357.703, inclusive
[F3] The amount reported includes shares subject to unvested restricted stock units.
[Transaction #20]
Security: Common Stock
Date: 2026-06-11 | Code: S (Open market sale)
Shares: -1,880 | Price: $358.22
Total Value: $673,453.60
Shares Owned After: 211,368 | Ownership: D (Direct)
Footnotes:
[F1] This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on February 6, 2026.
[F21] The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $357.762 to $358.70, inclusive
[F3] The amount reported includes shares subject to unvested restricted stock units.
[Transaction #21]
Security: Common Stock
Date: 2026-06-11 | Code: S (Open market sale)
Shares: -780 | Price: $359.24
Total Value: $280,207.20
Shares Owned After: 210,588 | Ownership: D (Direct)
Footnotes:
[F1] This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on February 6, 2026.
[F22] The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $358.79 to $359.735, inclusive
[F3] The amount reported includes shares subject to unvested restricted stock units.
[Transaction #22]
Security: Common Stock
Date: 2026-06-11 | Code: S (Open market sale)
Shares: -664 | Price: $360.24
Total Value: $239,199.36
Shares Owned After: 209,924 | Ownership: D (Direct)
Footnotes:
[F1] This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on February 6, 2026.
[F23] The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $359.819 to $360.59, inclusive
[F3] The amount reported includes shares subject to unvested restricted stock units.
[Transaction #23]
Security: Common Stock
Date: 2026-06-11 | Code: S (Open market sale)
Shares: -1,756 | Price: $361.05
Total Value: $634,003.80
Shares Owned After: 208,168 | Ownership: D (Direct)
Footnotes:
[F1] This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on February 6, 2026.
[F24] The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $360.60 to $361.54, inclusive
[F3] The amount reported includes shares subject to unvested restricted stock units.
[Transaction #24]
Security: Common Stock
Date: 2026-06-11 | Code: S (Open market sale)
Shares: -2,604 | Price: $362.20
Total Value: $943,168.80
Shares Owned After: 205,564 | Ownership: D (Direct)
Footnotes:
[F1] This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on February 6, 2026.
[F25] The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $361.595 to $362.550, inclusive
[F3] The amount reported includes shares subject to unvested restricted stock units.
[Transaction #25]
Security: Common Stock
Date: 2026-06-11 | Code: S (Open market sale)
Shares: -5,717 | Price: $362.95
Total Value: $2,074,985.15
Shares Owned After: 199,847 | Ownership: D (Direct)
Footnotes:
[F1] This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on February 6, 2026.
[F26] The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $362.58 to $363.57, inclusive
[F3] The amount reported includes shares subject to unvested restricted stock units.
[Transaction #26]
Security: Common Stock
Date: 2026-06-11 | Code: S (Open market sale)
Shares: -642 | Price: $364.00
Total Value: $233,688.00
Shares Owned After: 199,205 | Ownership: D (Direct)
Footnotes:
[F1] This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on February 6, 2026.
[F27] The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $363.765 to $364.37, inclusive
[F3] The amount reported includes shares subject to unvested restricted stock units.
--- Footnotes (Complete Index) ---
F1: This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on February 6, 2026.
F10: The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $344.396 to $345.348, inclusive
F11: The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $345.386 to $346.336, inclusive
F12: The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $346.383 to $347.359, inclusive
F13: The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $347.383 to $348.355, inclusive
F14: The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $348.391 to $349.351, inclusive
F15: The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $349.409 to $350.260, inclusive
F16: The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $352.824 to $353.805, inclusive
F17: The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $353.818 to $354.743, inclusive
F18: The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $354.805 to $355.746, inclusive
F19: The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $355.75 to $356.709, inclusive
F2: The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $337.00 to $337.97, inclusive
F20: The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $356.759 to $357.703, inclusive
F21: The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $357.762 to $358.70, inclusive
F22: The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $358.79 to $359.735, inclusive
F23: The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $359.819 to $360.59, inclusive
F24: The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $360.60 to $361.54, inclusive
F25: The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $361.595 to $362.550, inclusive
F26: The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $362.58 to $363.57, inclusive
F27: The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $363.765 to $364.37, inclusive
F3: The amount reported includes shares subject to unvested restricted stock units.
F4: The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $338.19 to $339.15, inclusive
F5: The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $339.23 to $340.20, inclusive
F6: The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $340.278 to $341.249, inclusive
F7: The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $341.418 to $342.202, inclusive
F8: The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $342.415 to $343.39, inclusive
F9: The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $343.40 to $344.377, inclusive
--- Signature ---
/s/ Marta Woods by Power of Attorney (2026-06-15)
