Transactions
27
Insider / LAM RESEARCH CORP
ARCHER TIMOTHY
President and CEO at LAM RESEARCH CORP
- Company
- LAM RESEARCH CORP
- First filing on record
- December 18, 2025
- Latest trade on record
- October 23, 2026
- SEC filings
- EDGAR ↗
ARCHER TIMOTHY, President and CEO at LAM RESEARCH CORP, has disclosed 27 transactions in LRCX, JCI since December 18, 2025: 0 purchases (0 open-market buys) and 11 sales, worth about $110.3M at the reported prices. The latest was filed October 26, 2026, 3 days after the trade.
Open-market buys
0
Sales
11
Avg. disclosure lag
2.1d
Trading in charts
Trade timeline
When does this person trade, how big, and in which direction? Every trade in the last 12 months.
Bought (above the line)Sold (below the line)Other transaction
In the last 12 months ARCHER TIMOTHY made no purchases and 11 sales worth $105M, plus 16 other transactions. Dot size is the dollar amount.
Portfolio mix
Which stocks does this person trade most? Tile size is dollars traded, all time on record.
ARCHER TIMOTHY has traded 2 stocks on record; the largest by dollars is LRCX.
Reporting lag
Does this person report on time? One bar per filing against the Form 4 deadline.
On timeLate
0 of 9 filings on record were reported after the Form 4 deadline (two business days, counted here as 4 calendar days).
What kind of transactions
Most Form 4 rows are pay arriving or tax being withheld, not a decision to buy or sell. Only code P is an open-market purchase and code S an open-market sale. What each code means: Form 4 transaction codes.
| Code | Meaning | Rows | Shares | Value |
|---|---|---|---|---|
| M | Option exercise or conversion | 12 | 921,950 | $5.6M |
| S | Open-market sale | 6 | 284,700 | $64.2M |
| F | Shares withheld for tax | 5 | 173,409 | $40.5M |
| A | Grant or award | 3 | 128,918 | — |
| G | Gift | 1 | 7,080 | — |
| Year | Rows | Bought | Sold |
|---|---|---|---|
| 2026 | 23 | 0 | 9 · $77.9M |
| 2025 | 4 | 0 | 2 · $26.8M |
Transactions
| Security | Side | Trade date | Disclosed | Lag | Shares | Price | Value | Flags | Source | Share |
|---|---|---|---|---|---|---|---|---|---|---|
| LRCX | Option / conversion M | October 23, 2026 | October 26, 2026 | 3d | 31,400 | — | — | 10b5-1 planderivative | Form 4 ↗ | |
| LRCX | Sell S | October 23, 2026 | October 26, 2026 | 3d | 31,400 | $227 | $7.1M | 10b5-1 plan | Form 4 ↗ | |
| LRCX | Option / conversion M | October 23, 2026 | October 26, 2026 | 3d | 31,400 | $30 | $943K | 10b5-1 plan | Form 4 ↗ | |
| LRCX | Option / conversion M | September 9, 2026 | September 10, 2026 | 1d | 30,000 | — | — | 10b5-1 planderivative | Form 4 ↗ | |
| LRCX | Sell S | September 9, 2026 | September 10, 2026 | 1d | 30,000 | $319 | $9.6M | 10b5-1 plan | Form 4 ↗ | |
| LRCX | Option / conversion M | September 9, 2026 | September 10, 2026 | 1d | 30,000 | $30 | $901K | 10b5-1 plan | Form 4 ↗ | |
| LRCX | Option / conversion M | August 6, 2026 | August 7, 2026 | 1d | 30,000 | — | — | 10b5-1 planderivative | Form 4 ↗ | |
| LRCX | Sell S | August 6, 2026 | August 7, 2026 | 1d | 30,000 | $300 | $9.0M | 10b5-1 plan | Form 4 ↗ | |
| LRCX | Option / conversion M | August 6, 2026 | August 7, 2026 | 1d | 30,000 | $30 | $901K | 10b5-1 plan | Form 4 ↗ | |
| LRCX | Option / conversion M | July 2, 2026 | July 6, 2026 | 4d | 30,000 | — | — | 10b5-1 planderivative | Form 4 ↗ | |
| LRCX | Sell S | July 2, 2026 | July 6, 2026 | 4d | 30,000 | $390 | $11.7M | 10b5-1 plan | Form 4 ↗ | |
| LRCX | Option / conversion M | July 2, 2026 | July 6, 2026 | 4d | 30,000 | $30 | $901K | 10b5-1 plan | Form 4 ↗ | |
| JCI | Sell F | March 4, 2026 | March 6, 2026 | 2d | 1,115 | $140 | $156K | Form 4 ↗ | ||
| JCI | Other A | March 4, 2026 | March 6, 2026 | 2d | 1,285 | — | — | Form 4 ↗ | ||
| LRCX | Other A | February 27, 2026 | March 2, 2026 | 3d | 76,580 | — | — | derivative | Form 4 ↗ | |
| LRCX | Sell F | February 27, 2026 | March 2, 2026 | 3d | 19,584 | $234 | $4.6M | Form 4 ↗ | ||
| LRCX | Sell F | February 27, 2026 | March 2, 2026 | 3d | 8,111 | $234 | $1.9M | Form 4 ↗ | ||
| LRCX | Sell F | February 27, 2026 | March 2, 2026 | 3d | 9,975 | $234 | $2.3M | Form 4 ↗ | ||
| LRCX | Sell F | February 27, 2026 | March 2, 2026 | 3d | 134,624 | $234 | $31.5M | Form 4 ↗ | ||
| LRCX | Other A | February 27, 2026 | March 2, 2026 | 3d | 51,053 | — | — | Form 4 ↗ | ||
| LRCX | Other G | February 24, 2026 | February 25, 2026 | 1d | 7,080 | — | — | Form 4 ↗ | ||
| LRCX | Option / conversion M | February 4, 2026 | February 5, 2026 | 1d | 181,020 | — | — | derivative | Form 4 ↗ | |
| LRCX | Option / conversion M | February 4, 2026 | February 5, 2026 | 1d | 271,530 | — | — | Form 4 ↗ | ||
| LRCX | Option / conversion M | December 17, 2025 | December 18, 2025 | 1d | 113,300 | — | — | 10b5-1 planderivative | Form 4 ↗ | |
| LRCX | Sell S | December 17, 2025 | December 18, 2025 | 1d | 113,300 | $164 | $18.6M | 10b5-1 plan | Form 4 ↗ | |
| LRCX | Option / conversion M | December 17, 2025 | December 18, 2025 | 1d | 113,300 | $18 | $2.0M | 10b5-1 plan | Form 4 ↗ | |
| LRCX | Sell S | December 17, 2025 | December 18, 2025 | 1d | 50,000 | $164 | $8.2M | 10b5-1 plan | Form 4 ↗ |
Filings
| Filed | Form | Accession | Rows | Status | Source |
|---|---|---|---|---|---|
| October 26, 2026 | Form 4 | 0001343600-26-000015 | 3 | published | EDGAR ↗ |
| September 10, 2026 | Form 4 | 0001343600-26-000013 | 3 | published | EDGAR ↗ |
| August 7, 2026 | Form 4 | 0001343600-26-000011 | 3 | published | EDGAR ↗ |
| July 6, 2026 | Form 4 | 0001343600-26-000009 | 3 | published | EDGAR ↗ |
| March 6, 2026 | Form 4 | 0000897069-26-000614 | 2 | published | EDGAR ↗ |
| March 2, 2026 | Form 4 | 0001343600-26-000007 | 6 | published | EDGAR ↗ |
| February 25, 2026 | Form 4 | 0001343600-26-000005 | 1 | published | EDGAR ↗ |
| February 5, 2026 | Form 4 | 0001343600-26-000003 | 2 | published | EDGAR ↗ |
| December 18, 2025 | Form 4 | 0001343600-25-000006 | 4 | published | EDGAR ↗ |
Other insiders at LAM RESEARCH CORP
- BRANDT ERIC Director 51 rows
- Brennan Ita M Director 34 rows
- Schlitz Lei Zhang Director 33 rows
- DEVGAN ANIRUDH President and CEO 28 rows
- Bettinger Douglas R Chief Financial Officer & EVP 21 rows
- Harter Ava Chief Legal Officer 15 rows
- Varadarajan Seshasayee Senior Vice President 15 rows
- Dineen John M. Director 14 rows
- Donofrio John SVP, GC and Corp. Secretary 13 rows
- Grabowski Todd M VP and President, Americas 13 rows
Everyone on file, with contracts and lobbying under the company's name: LAM RESEARCH CORP.
Guides for this page
- What is SEC Form 4? Who files: officers, directors and owners of more than 10% of a class of the company's shares.
- Form 4 transaction codes P = purchase. S = sale. These are the two market trades.
- Insider buying vs insider selling Selling outweighs buying by a wide margin in normal times.
- Rule 10b5-1 trading plans The plan must be set up when the insider has no important non-public information.
- Options and derivatives on Form 4 Table I = shares. Table II = options and other derivatives.
Sources and method
| Source | Filings | Rows | First filed | Newest filed | Read the originals |
|---|---|---|---|---|---|
| SEC EDGAR, Form 4 | 9 | 27 | December 18, 2025 | October 26, 2026 | Form 4 list on EDGAR |
Site built October 27, 2026. Every row in the tables above links to its own filing. To quote a figure, use the Cite button at the top of the page; see how to cite and reuse.
Every row comes from the reporting owner's Form 4 as filed with the SEC (EDGAR ownership XML), read daily. "Value" is shares × the reported price; code P is an open-market purchase, S a sale, M an option exercise, A a grant. The lag is the filing date minus the trade date; Form 4 is due within two business days. Amendments (4/A) are not merged. Details on the methodology page; report an error on corrections.
Not investment advice. Figures are public disclosures shown as filed; they may lag the trade and may be amended later. No recommendation is made or implied.