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LRCX
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Lam Research Corporation

LRCX · Technology · Lam Research Corporation designs, manufactures, markets, refurbishes, and services semiconductor processing equipment used in the fabricati…

Lam Research Corporation (LRCX), in the Technology sector, has 37 disclosed filings on Paydirt over the trailing twelve months from 8 members of Congress and 9 corporate insiders: 5 purchases and 32 sales, 1 filed past the deadline. Filers took a median of 3 days from execution to disclosure, and the most recent trade was executed Sep 9 and filed Sep 10. The most active filer was David J. Taylor with 8 filings.

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Filings, ttm
37
5 buys · 32 sells · 1 late
Traders, ttm
17
8 congress · 9 insiders
Volume, ttmiDollar value disclosed in the window
$177.6M
estimated for Congress, as filed for insiders
Median delay
3d
execution to disclosure
Last traded
Sep 9
Filed Sep 10
ADViAverage daily dollar volume
$3.1B
market data
Share price · 12M
$269 (+104.8%)
$433$281$128Sep 22 2025Mar 20Sep 16

Adjusted for splits and dividends.

Volume by month
$41.5M$20.7M$0Oct 2024Apr 2025Oct 2025Apr 2026Oct 2024 · buys $8KOct 2024 · sells $537KNov 2024 · buys $8KNov 2024 · sells $141KJan 2025 · sells $33KFeb 2025 · buys $8KFeb 2025 · sells $9.9MMar 2025 · sells $8KApr 2025 · buys $83KApr 2025 · sells $75KMay 2025 · sells $132KJun 2025 · buys $33KJun 2025 · sells $33KAug 2025 · buys $33KSep 2025 · buys $32KSep 2025 · sells $57KOct 2025 · sells $8.7MNov 2025 · sells $6.2MDec 2025 · sells $26.8MJan 2026 · buys $75KJan 2026 · sells $65KFeb 2026 · buys $33KFeb 2026 · sells $7.9MMar 2026 · buys $8KMar 2026 · sells $21.8MApr 2026 · sells $1.6MMay 2026 · sells $4.7MJun 2026 · sells $41.5MJul 2026 · buys $16KJul 2026 · sells $17.8MAug 2026 · sells $9.0MSep 2026 · sells $31.5M
Buys $336K Sells $188.5M

Estimated for Congress, as filed for insiders · by filing month · past 24 months

Who filed
DT David J. Taylor Representative 8 filings AH Ava Harter Chief Legal Officer 5 filings MM Markwayne Mullin Senator (Spouse) 4 filings TA Timothy Archer President and CEO 4 filings JS Jefferson Shreve Representative 3 filings JB John Boozman Senator (Joint) 3 filings MG Marjorie Taylor Mrs Greene Representative 3 filings SW Sheldon Whitehouse Senator (Spouse) 3 filings
Recent filings
Timothy ArcherSALE President and CEO $9.6M
30,000 sh × $319.26
Exec Sep 9
Filed Sep 10 · 1:05 PM ET
Bethany MayerSALE Director $3.0M
9,557 sh × $314.74
Exec Sep 9
Filed Sep 10 · 1:04 PM ET
Seshasayee VaradarajanSALE Senior Vice President $17.4M
59,750 sh across 3 lots
Exec Sep 2
Filed Sep 3 · 3:06 PM ET
Sheldon WhitehouseSALE Senator (Spouse) $8K
$1K–15K bracket
Exec Aug 13
Filed Sep 2
Ava HarterSALE Chief Legal Officer $1.5M
5,000 sh × $302.46
Exec Aug 31
Filed Sep 1 · 12:08 PM ET
Timothy ArcherSALE President and CEO $9.0M
30,000 sh × $300.00
Exec Aug 6
Filed Aug 7 · 1:24 PM ET
Alan ArmstrongPURCHASE Senator $16K
2 lots · $2K–30K bracket
Exec Mar 27
Filed Jul 21 †
Abhijit Y TalwalkarSALE Director $6.1M
18,282 sh × $335.00
Exec Jul 13
Filed Jul 14 · 12:56 PM ET
Timothy ArcherSALE President and CEO $11.7M
30,000 sh × $390.01
Exec Jul 2
Filed Jul 6 · 12:33 PM ET
Eric BrandtSALE Director $19.1M
54,464 sh across 25 lots
Exec Jun 11
Filed Jun 15 · 5:30 PM ET
Eric BrandtSALE Director $20.0M
54,500 sh across 17 lots
Exec Jun 12
Filed Jun 15 · 5:30 PM ET
David J. TaylorSALE Representative $8K
$1K–15K bracket
Exec Jun 5
Filed Jun 12
Neil J FernandesSALE Senior Vice President $2.4M
7,659 sh × $309.60
Exec Jun 1
Filed Jun 2 · 5:30 PM ET
David J. TaylorSALE Representative $16K
2 lots · $2K–30K bracket
Exec Apr 27
Filed May 7
Neil J FernandesSALE Senior Vice President $4.6M
18,170 sh × $255.14
Exec May 1
Filed May 4 · 5:30 PM ET
Ava HarterSALE Chief Legal Officer $1.6M
6,010 sh × $258.66
Exec Apr 27
Filed Apr 28 · 5:30 PM ET
David J. TaylorPURCHASE Representative $8K
$1K–15K bracket
Exec Mar 12
Filed Mar 20
David J. TaylorSALE Representative $16K
2 lots · $2K–30K bracket
Exec Feb 26
Filed Mar 6
Ava HarterSALE Chief Legal Officer $334K
1,500 sh × $222.66
Exec Mar 4
Filed Mar 5 · 5:30 PM ET
Douglas R BettingerSALE Chief Financial Officer & EVP $11.2M
50,057 sh × $224.03
Exec Mar 4
Filed Mar 5 · 5:30 PM ET
Ava HarterSALE Chief Legal Officer $930K
4,000 sh × $232.50
Exec Mar 2
Filed Mar 3 · 5:30 PM ET
Douglas R BettingerSALE Chief Financial Officer & EVP $9.3M
40,329 sh × $230.22
Exec Mar 2
Filed Mar 3 · 5:30 PM ET
Cleo FieldsPURCHASE Representative $33K
$15K–50K bracket
Exec Feb 3
Filed Feb 24
John BoozmanSALE Senator (Joint) $8K
$1K–15K bracket
Exec Jan 8
Filed Feb 15
Eric BrandtSALE Director $7.9M
35,000 sh across 2 lots
Exec Feb 6
Filed Feb 9 · 5:30 PM ET