LRCXS&P 500

Lam Research SEC filings, summarized

We read every Lam Research 8-K filing and insider trade the night it hits SEC EDGAR, and turn it into a two-minute plain-English summary.

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Recent filings

8-KOctober 21, 2026

Lam Research reports record September-quarter revenue and raises next-quarter outlook

Lam Research reported September-quarter revenue of $8.22 billion, up 22% from the June quarter, with U.S. GAAP diluted EPS of $2.19 and operating margin of…

Form 4 · Insider TradeSeptember 10, 2026

Lam Research director Bethany Mayer sells $3.0M in stock

Lam Research Director Bethany Mayer sold 9,557 shares of common stock on Sept. 9 at $314.74 per share, for approximately $3,007,970. She owned 20,995 shares…

Form 4 · Insider TradeSeptember 10, 2026

Lam Research CEO Timothy Archer sells $9.6M in stock

Timothy Archer, President and CEO of Lam Research, sold 30,000 common shares on September 9 at $319.26 each, for approximately $9.58 million. He owned…

Form 4 · Insider TradeSeptember 3, 2026

LRCX SVP Varadarajan Seshasayee sells $17.4M in stock

Lam Research Senior Vice President Varadarajan Seshasayee sold 59,750 shares in three open-market transactions on Sept. 2 at $291.32 per share, for an…

Form 4 · Insider TradeSeptember 1, 2026

Lam Research CLO Ava Harter sells $1.5M in stock

Ava Harter, chief legal officer of Lam Research, sold 5,000 shares of common stock on Aug. 31 at $302.46 per share, for approximately $1,512,300. She owned…

8-KAugust 27, 2026

Lam Research directors Ahmed and Cannon to retire November 2

Sohail U. Ahmed and Michael R. Cannon notified Lam Research’s board on August 24, 2026, that they will retire as directors effective November 2, 2026. The…

Form 4 · Insider TradeAugust 7, 2026

Lam Research CEO Timothy Archer sells $9.0M in stock

Timothy Archer, President and CEO of Lam Research, sold 30,000 shares of common stock on Aug. 6 at $300.00 per share, for an approximate total value of $9.0…

8-KJuly 29, 2026

Lam Research Reports Record Quarterly Revenue and Raises September Guidance

Lam Research reported June-quarter revenue of $6.72 billion and diluted EPS of $1.81 under GAAP, up from $5.84 billion and $1.45 in the March quarter;…

8-KFebruary 3, 2026

LAM Research ($LRCX) filed an 8-K on Feb 3, 2026 attaching press releases announcing a director…

LAM Research ($LRCX) filed an 8-K on Feb 3, 2026 attaching press releases announcing a director appointment and a management transition (Exhibits 99.1 &…

8-KFebruary 3, 2026

Lam Research ($LRCX) appointed Anirudh Devgan, Ph.D.

Lam Research ($LRCX) appointed Anirudh Devgan, Ph.D. to its Board effective Feb 3, 2026; board size increased by one. Devgan joins the Innovation &…

8-KJanuary 28, 2026

LAM Research ($LRCX) filed an 8‑K on Jan 28, 2026 attaching a press release (Ex.

LAM Research ($LRCX) filed an 8‑K on Jan 28, 2026 attaching a press release (Ex. 99.1) with financial results for the fiscal quarter ended Dec 28, 2025.…

8-KJanuary 28, 2026

Lam Research ($LRCX) issued a press release on Jan 28, 2026 announcing financial results for the fiscal…

Lam Research ($LRCX) issued a press release on Jan 28, 2026 announcing financial results for the fiscal quarter ended Dec 28, 2025; full text is attached as…