About this page
Insider trades reported on SEC Form 4: when the people who run a company buy or sell its shares with their own money.
How to read it
- Form 4
- The form a company insider (officer, director or owner of more than 10%) must file with the SEC within two business days of buying or selling the company's shares.
- Buy (P) and Sell (S)
- Open-market purchases and sales. Gifts, option exercises and automatic tax withholding are left out because they say little about what the insider thinks.
- Value
- Shares times price, as reported on the filing.
- 10b5-1
- A trade made under a plan set up in advance. Planned sales are common and usually say less than an unplanned purchase.
- Late filing
- A Form 4 filed more than two business days after the trade.
- Vs. S&P 500
- How the stock did after the trade minus how the overall market did in the same weeks.
A real example
In January 2016, when bank stocks were falling, JPMorgan Chase CEO Jamie Dimon bought 500,000 JPMorgan shares with his own money, worth about $26 million. His Form 4 made the purchase public within days, and investors read it as a strong sign of confidence.
Explain it like I'm 13
If the coach of a team bets his own allowance that his team will win, that tells you something. A Form 4 is the note a company boss must hand in whenever he buys or sells his own company's shares, so everyone can see it.
Data from public SEC filings and congressional reports. Information, not investment advice. Check every number against the filing linked on the page.
LAM RESEARCH CORP (LRCX): Insider Trades and Fund Holdings
In the past 12 months, LAM RESEARCH CORP insiders reported no open-market purchases and 10 sales worth $104.6M; 9 of the sales were reported as made under a 10b5-1 trading plan.
Timeline: news and trades
Company filings (8-K), insider trades, notices of planned sales (Form 144), Congress trades and fund moves in the past year, newest first.
- Oct 23, 2026Insider saleCEO Timothy Archer sold $7.1 million under a 10b5-1 plan (2 days after: quarterly or annual results)
- Oct 23, 2026Planned saleARCHER TIMOTHY (officer, director) filed notice to sell about $7.1 million around Oct 23, 2026
- Oct 21, 2026NewsCompany reported: Quarterly or annual results
- Sep 9, 2026Insider saleCEO Timothy Archer sold $9.6 million under a 10b5-1 plan
- Sep 9, 2026Insider saleDirector Bethany Mayer sold $3 million
- Sep 9, 2026Planned saleARCHER TIMOTHY (officer, director) filed notice to sell about $9.6 million around Sep 9, 2026
- Sep 9, 2026Planned saleBETHANY MAYER (director) filed notice to sell about $3 million around Sep 9, 2026
- Sep 2, 2026Insider salePresident Seshasayee Varadarajan sold $17.4 million under a 10b5-1 plan (6 days after: executive or director change)
- Sep 2, 2026Planned saleVaradarajan Seshasayee (officer) filed notice to sell about $17.4 million around Sep 2, 2026
- Aug 31, 2026Insider saleGeneral Counsel Ava Harter sold $1.5 million under a 10b5-1 plan (4 days after: executive or director change)
- Aug 31, 2026Planned saleHarter Ava (officer) filed notice to sell about $1.5 million around Aug 31, 2026
- Aug 27, 2026NewsCompany reported: Executive or director change
- Aug 6, 2026Insider saleCEO Timothy Archer sold $9 million under a 10b5-1 plan (8 days after: quarterly or annual results)
- Aug 6, 2026Planned saleARCHER TIMOTHY (officer, director) filed notice to sell about $9 million around Aug 6, 2026
- Jul 29, 2026NewsCompany reported: Quarterly or annual results
- Jul 13, 2026Insider saleDirector Abhijit Y. Talwalkar sold $6.1 million under a 10b5-1 plan
- Jul 2, 2026Insider saleCEO Timothy Archer sold $11.7 million under a 10b5-1 plan
- Jun 30, 2026FundBridgewater Associates cut 40% in Q2 2026 (13F filed Aug 14, 2026)
- Jun 30, 2026FundThird Point sold out in Q2 2026 (13F filed Aug 14, 2026)
- Jun 30, 2026FundTiger Global Management cut 19% in Q2 2026 (13F filed Aug 14, 2026)
- Jun 30, 2026FundDuquesne Family Office opened a position in Q2 2026 (13F filed Aug 14, 2026)
- Jun 30, 2026FundCoatue Management cut 6% in Q2 2026 (13F filed Aug 14, 2026)
- Jun 30, 2026FundRenaissance Technologies added 828% in Q2 2026 (13F filed Aug 13, 2026)
- Jun 12, 2026Insider saleDirector Eric Brandt sold $20 million under a 10b5-1 plan
- Jun 11, 2026Insider saleDirector Eric Brandt sold $19.1 million under a 10b5-1 plan
- Jun 5, 2026CongressRep. David J. Taylor sell $1K–$15K
- Apr 27, 2026CongressRep. David J. Taylor sell $1K–$15K
- Apr 27, 2026CongressRep. David J. Taylor sell $1K–$15K
- Mar 12, 2026CongressRep. David J. Taylor buy $1K–$15K
- Feb 26, 2026CongressRep. David J. Taylor sell $1K–$15K
- Feb 26, 2026CongressRep. David J. Taylor sell $1K–$15K
- Feb 3, 2026CongressRep. Cleo Fields buy $15K–$50K
- Jan 16, 2026CongressRep. David J. Taylor sell $1K–$15K
- Jan 8, 2026CongressRep. David J. Taylor sell $15K–$50K
- Jan 8, 2026CongressRep. David J. Taylor sell $15K–$50K
Recent insider trades
Open-market purchases (code P) and sales (code S) from Form 4. Grants, option exercises and gifts are not shown. Latest filing: Oct 26, 2026.
| Filed | Insider | Type | Value |
|---|---|---|---|
| Oct 26 | Timothy ArcherCEO | ▼ SELL10b5-1 | $7.13M |
| Sep 10 | Timothy ArcherCEO | ▼ SELL10b5-1 | $9.58M |
| Sep 10 | Bethany MayerDirector | ▼ SELL | $3.01M |
| Sep 3 | Seshasayee VaradarajanPresident | ▼ SELL10b5-1 | $17.4M |
| Sep 1 | Ava HarterGeneral Counsel | ▼ SELL10b5-1 | $1.51M |
| Aug 7 | Timothy ArcherCEO | ▼ SELL10b5-1 | $9.00M |
| Jul 14 | Abhijit Y. TalwalkarDirector | ▼ SELL10b5-1 | $6.12M |
| Jul 6 | Timothy ArcherCEO | ▼ SELL10b5-1 | $11.7M |
| Jun 15 | Eric BrandtDirector | ▼ SELL10b5-1 | $20.0M |
| Jun 15 | Eric BrandtDirector | ▼ SELL10b5-1 | $19.1M |
Insiders who traded in the past year
| Insider | Role | Buys | Bought | Sells | Sold |
|---|---|---|---|---|---|
| Timothy Archer | CEO | 0 | $0 | 4 | $37.4M |
| Bethany Mayer | Director | 0 | $0 | 1 | $3.01M |
| Seshasayee Varadarajan | President | 0 | $0 | 1 | $17.4M |
| Ava Harter | General Counsel | 0 | $0 | 1 | $1.51M |
| Abhijit Y. Talwalkar | Director | 0 | $0 | 1 | $6.12M |
| Eric Brandt | Director | 0 | $0 | 2 | $39.1M |
Trades by members of Congress
Reported under the STOCK Act. Amounts are ranges from the form. All Congress trades →
| Filed | Member | Type | Amount |
|---|---|---|---|
| Jun 12 |  Rep. David J. TaylorR-OH-2 | ▼ SELL | $1K–$15K |
| May 7 | Rep. David J. TaylorR-OH-2 | ▼ SELL | $1K–$15K |
| May 7 | Rep. David J. TaylorR-OH-2 | ▼ SELL | $1K–$15K |
| Mar 20 | Rep. David J. TaylorR-OH-2 | ▲ BUY | $1K–$15K |
| Mar 6 | Rep. David J. TaylorR-OH-2 | ▼ SELL | $1K–$15K |
| Mar 6 | Rep. David J. TaylorR-OH-2 | ▼ SELL | $1K–$15K |
| Feb 24 |  Rep. Cleo FieldsD-LA-6 | ▲ BUY | $15K–$50K |
| Feb 2 | Rep. David J. TaylorR-OH-2 | ▼ SELL | $1K–$15K |
| Jan 21 | Rep. David J. TaylorR-OH-2 | ▼ SELL | $15K–$50K |
| Jan 21 | Rep. David J. TaylorR-OH-2 | ▼ SELL | $15K–$50K |
Buybacks and executive pay
LAM RESEARCH CORP spent $3.85 billion buying back its own shares in 2025.
| Year | CEO pay reported | CEO pay "actually paid" | Value of $100 invested |
|---|---|---|---|
| 2025 | $40.4M | $320.6M | n/a |
| 2024 | $28.3M | $14.7M | n/a |
From the company's XBRL data filed with the SEC. "Actually paid" is the SEC's pay-versus-performance measure, which counts changes in the value of stock awards. "Value of $100 invested" is the company's cumulative shareholder return as reported, usually measured from five years earlier. See all buybacks and CEO pay across companies.
A All 10 insider trades reported on time. How it is graded
Tracked funds that report LRCX
From each fund's latest 13F. Holdings are as of quarter end and are filed up to 45 days later.
| Fund | Shares | Value | Change |
|---|---|---|---|
| Coatue Management | 9,441,603 | $4.09B | ▼ −6.0% |
| Tiger Global Management | 3,163,495 | $1.37B | ▼ −18.9% |
| Bridgewater Associates | 938,224 | $406.6M | ▼ −40.3% |
| Appaloosa | 382,500 | $165.7M | No change |
| Renaissance Technologies | 31,600 | $13.7M | ▲ +827.8% |
| Duquesne Family Office | 43,600 | $19K | ▲ New |
| Third Point | 0 | $0 | ▼ Sold out |
Reading these numbers
Insiders sell for many reasons: taxes, diversification, a house. Purchases with their own money are rarer and are usually read as more informative. A Form 4 is due within two business days of the trade. How to read a Form 4 →