Lam Research LRCX SEC Filings

NASDAQ LRCX
$230.15 -30.66 (-11.76%)
At close: Oct 22, 2026 · 4:00 PM EDT
EDGAR Disclosures

SEC Filings

Source SEC EDGAR

Every SEC filing Lam Research Corp (LRCX) has made, as reported on EDGAR — annual and quarterly reports, current reports, insider transactions and ownership disclosures. Filter by form group, form type or period, and open any filing or its index directly.

Form Type
# Form Type Form Group Accession Date Filing Index
18-KCurrent Report0000707549-26-000052Oct 21, 2026 12:13 AM
2ARSOthers0001140361-26-037568Sep 24, 2026 8:19 PM
3DEFA14AOthers0001140361-26-037565Sep 24, 2026 8:13 PM
4DEF 14AOthers0000707549-26-000047Sep 24, 2026 8:05 PM
54Insider Transaction0001343600-26-000013Sep 10, 2026 5:05 PM
64Insider Transaction0001405693-26-000011Sep 10, 2026 5:04 PM
7144Insider Transaction0001969223-26-001013Sep 9, 2026 8:52 PM
8144Insider Transaction0001959173-26-006806Sep 9, 2026 1:58 PM
94Insider Transaction0001707827-26-000006Sep 3, 2026 7:06 PM
10144Insider Transaction0001959173-26-006628Sep 2, 2026 3:51 PM
114Insider Transaction0001642415-26-000012Sep 1, 2026 4:08 PM
12144Insider Transaction0001959173-26-006537Aug 31, 2026 3:24 PM
138-KCurrent Report0000707549-26-000043Aug 27, 2026 9:20 PM
1410-KQuarterly & Annual Report0000707549-26-000037Aug 7, 2026 8:06 PM
154Insider Transaction0001343600-26-000011Aug 7, 2026 5:24 PM
164Insider Transaction0001642415-26-000010Aug 6, 2026 3:39 PM
17144Insider Transaction0001959173-26-005699Aug 6, 2026 2:22 PM
188-KCurrent Report0000707549-26-000033Jul 29, 2026 4:07 PM
194Insider Transaction0001316065-26-000012Jul 14, 2026 4:56 PM
20144Insider Transaction0001959173-26-005202Jul 13, 2026 2:06 PM
214Insider Transaction0001343600-26-000009Jul 6, 2026 4:33 PM
22144Insider Transaction0001959173-26-005041Jul 2, 2026 2:45 PM
2311-KOthers0000707549-26-000031Jun 25, 2026 8:52 PM
244Insider Transaction0001190639-26-000006Jun 15, 2026 11:33 PM
254Insider Transaction0001190639-26-000004Jun 15, 2026 4:27 PM
26144Insider Transaction0001959173-26-004583Jun 12, 2026 1:51 PM
27144Insider Transaction0001959173-26-004574Jun 11, 2026 8:56 PM
284Insider Transaction0001966598-26-000004Jun 2, 2026 4:05 PM
29SDOthers0000707549-26-000027Jun 1, 2026 8:06 PM
30144Insider Transaction0001959173-26-004167Jun 1, 2026 3:01 PM
31144Insider Transaction0001959173-26-003582May 14, 2026 1:57 PM
324Insider Transaction0000707549-26-000024May 4, 2026 5:24 PM
334Insider Transaction0000707549-26-000024May 4, 2026 5:24 PM
344Insider Transaction0000707549-26-000024May 4, 2026 5:24 PM
35144Insider Transaction0001959173-26-003160May 1, 2026 2:05 PM
36SCHEDULE 13GBeneficial Ownership Report0002100119-26-000703Apr 30, 2026 11:05 AM
374Insider Transaction0001642415-26-000008Apr 28, 2026 6:04 PM
384Insider Transaction0001642415-26-000008Apr 28, 2026 6:04 PM
394Insider Transaction0001642415-26-000008Apr 28, 2026 6:04 PM
40144Insider Transaction0001959173-26-003094Apr 27, 2026 3:56 PM
41144Insider Transaction0001959173-26-003094Apr 27, 2026 3:56 PM
42144Insider Transaction0001959173-26-003094Apr 27, 2026 3:56 PM
4310-QQuarterly & Annual Report0000707549-26-000022Apr 23, 2026 8:05 PM
448-KCurrent Report0000707549-26-000020Apr 22, 2026 8:09 PM
45SCHEDULE 13GBeneficial Ownership Report0000102909-26-001646Mar 27, 2026 2:18 PM
464Insider Transaction0001316065-26-000005Mar 11, 2026 7:54 PM
473Insider Transaction0002113601-26-000004Mar 10, 2026 3:12 PM
483Insider Transaction0002113601-26-000004Mar 10, 2026 3:12 PM
493Insider Transaction0002113601-26-000004Mar 10, 2026 3:12 PM
504Insider Transaction0001469469-26-000007Mar 5, 2026 6:49 PM
...

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