Filer Snapshot

LAM RESEARCH CORP

CIK 0000707549. SEC filing timeline plus parsed ownership intelligence from 13F, 13D/G, and Forms 3/4/5 where available.

Entity type

Company

Total filings

2,019

Latest filing

28 Apr 2026

Industry

n/a

Filing-backed research brief

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Latest signal: SEC filing timeline only. Each card links back to the PortfolioSavvy page where the filing evidence is closest.

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Largest parsed holding

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Populates from the latest parsed 13F information table.

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13D/G large stake

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No recent parsed 13D/G stake row for this CIK.

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Source: SEC Forms 3/4/5

4 filed on 28 Apr 2026 for CIK 0000707549.

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Listed symbols
LRCX on Nasdaq
At a glance Names, identifiers, and filing context for this profile. 1 identity field
Business address
4650 Cushing Blvd, Fremont, CA, 94538
EDGAR profile Static EDGAR fields kept behind disclosure so the main profile stays readable. 2 profile fields available
Incorporated in
DE
Fiscal year end
28 June

Filer intelligence

What SEC filings say about LAM RESEARCH CORP

A compact read of parsed XML filings. 13F, 13D/G, and Forms 3/4/5 are shown separately because they answer different ownership questions.

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SEC source mix

Counts show available parsed rows, not one combined ownership total.

No XML rows yet
13F portfolio No rows yet

Quarterly institutional portfolio holdings.

13D/G stakes No rows yet

Beneficial ownership and large-stake disclosures.

Forms 3/4/5 No rows yet

Officer, director, and 10% owner holdings or transactions.

No parsed ownership summary yet

We still show the SEC filing timeline below. The intelligence summary will populate when parsed 13F, 13D/G, or Forms 3/4/5 data exists for this CIK.

SEC filing record

CIK 0000707549 filing coverage

Start with this filing record, then use the linked ownership pages when parsed 13F, 13D/G, Forms 3/4/5, or facts data exists for this CIK.

SEC filings
2,019
First seen
06 May 1994
Latest filing
28 Apr 2026
Entity
Company

Observed form types

4 144 10-Q 8-K SCHEDULE 13G/A 3 3/A 8-K/A S-8 S-8 POS +23 more

CIK-linked evidence first

LAM RESEARCH CORP SEC filings 512807306 holder history Open SEC filing index

Latest Filings

Showing the latest 12 of 1,000 SEC filings for LAM RESEARCH CORP.

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4

FORM 4

Filing date
28 Apr 2026
Reporting date
27 Apr 2026
SEC evidence
Open document Open filing
Next action
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144 File 000-12933

144 filing

Filing date
27 Apr 2026
Reporting date
Not listed
SEC evidence
Open document Open filing
Next action
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SCHEDULE 13G/A File 005-35859

SCHEDULE 13G/A filing

Filing date
27 Mar 2026
Reporting date
Not listed
SEC evidence
Open document Open filing
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4

FORM 4

Filing date
11 Mar 2026
Reporting date
10 Mar 2026
SEC evidence
Open document Open filing
Next action
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3

FORM 3

Filing date
10 Mar 2026
Reporting date
06 Mar 2026
SEC evidence
Open document Open filing
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4

FORM 4

Filing date
05 Mar 2026
Reporting date
04 Mar 2026
SEC evidence
Open document Open filing
Next action
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4

FORM 4

Filing date
05 Mar 2026
Reporting date
04 Mar 2026
SEC evidence
Open document Open filing
Next action
Verify source filing
144 File 000-12933

144 filing

Filing date
04 Mar 2026
Reporting date
Not listed
SEC evidence
Open document Open filing
Next action
Verify source filing
144 File 000-12933

144 filing

Filing date
04 Mar 2026
Reporting date
Not listed
SEC evidence
Open document Open filing
Next action
Verify source filing
4

FORM 4

Filing date
03 Mar 2026
Reporting date
02 Mar 2026
SEC evidence
Open document Open filing
Next action
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