Insider trade

CEO sold ~$9.58M of LRCX shares in the open market

Traded Sep 9, 2026 · Filed Sep 10, 2026

Lam ResearchLRCX

~$9.58M
Reported value · 30K sh @ $319.26: 1.08M
Holds after · shares reported: +7.7%
stock since the trade · S&P 500 +0.2%, $315.84 → $340.10 on Oct 1

Why it stands out

The boss of Lam Research sold $9.58M of Lam Research shares. It was planned long ago, so it says very little.

Written from the filing's own figures. OQRO describes what was reported and never tells you what to buy or sell

View the official recordSEC Form 4 — Statement of Changes in Beneficial Ownership

All the details

Dates, kept separate

Transaction date: Sep 9, 2026
Reporting period: Not applicable
Filed with the SEC: Sep 10, 2026

CEO$1M+Pre-arranged plan referenced

Context

Classification

open market sale

Code S — open-market or private sale

Absolute commitment

~$9,577,800

Shares × reported transaction price

Timing vs results

42 days after results of Jul 29, 2026

Results dates are the company's own 8-K (Item 2.02). Many companies only let insiders trade in a window after results

Price at the time

Closed at $315.84 on Sep 9, 2026, 194% above its 52-week low and 27% below its high, after a 17% rise over the previous 30 trading days

52-week range $107.36 (Sep 10, 2025) to $433.33 (Jun 30, 2026), 64% of the way up, from 251 adjusted closes. 30 trading days earlier: $269.61 on Jul 28, 2026. Describes the past only, not a forecast

Planned / mechanical clue

Footnote references a pre-arranged trading plan (Rule 10b5-1)

Only flagged when a footnote says so; never inferred

After it was reported

After	Stock	S&P 500	Difference
7 days	-3.4%	-0.3%	-3.0%

Past results only. Not a forecast.

Source receipt

Record ID: 0001343600-26-000013
Filed / recorded: Sep 10, 2026, 5:05 PM UTC
Added to OQRO: Oct 2, 2026, 12:28 PM UTC
Parser: form4-xml-v1
Data quality: Verified: identifiers matched exactly
Issuer: LAM RESEARCH CORP
Issuer CIK: 707549
Ticker: LRCX
Reporting person: Timothy Archer
Relationship: Officer
Officer title: President and CEO
Security: Common Stock
Table: Non-derivative (Table I)
Transaction date: Sep 9, 2026
Transaction code: S
Shares / units: 30,000
Price per share: $319.26
Acquired / disposed: Disposed (D)
Shares owned after: 1,075,966
Ownership form: Direct
Amendment: No

Footnotes from the filing

This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on February 24, 2026.
The amount reported includes shares subject to unvested restricted stock units.