# EDGAR Filing Document

**Accession Number:** 0001190639
**File Stem:** 0001190639-26-000006
**Filing Date:** 2026-6
**Character Count:** 10555
**Document Hash:** de60a165cdb220c50e831e09fb7dfd7c
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001190639-26-000006.hdr.sgml**: 20260615

**ACCESSION NUMBER**: 0001190639-26-000006

**CONFORMED SUBMISSION TYPE**: 4

**PUBLIC DOCUMENT COUNT**: 1

**CONFORMED PERIOD OF REPORT**: 20260612

**FILED AS OF DATE**: 20260615

**DATE AS OF CHANGE**: 20260615

**REPORTING-OWNER**: 

**OWNER DATA:**
- **COMPANY CONFORMED NAME:** BRANDT ERIC
- **CENTRAL INDEX KEY:** 0001190639

**ORGANIZATION NAME:**

**FILING VALUES:**
- **FORM TYPE:** 4
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 000-12933
- **FILM NUMBER:** 261092483

**MAIL ADDRESS:**
- **STREET 1:** C/O LAM RESEARCH
- **STREET 2:** 4350 CUSHING PARKWAY
- **CITY:** FREMONT
- **STATE:** CA
- **ZIP:** 94538
**ISSUER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** LAM RESEARCH CORP
- **CENTRAL INDEX KEY:** 0000707549
- **STANDARD INDUSTRIAL CLASSIFICATION:** SPECIAL INDUSTRY MACHINERY, NEC [3559]
- **ORGANIZATION NAME:** 06 Technology
- **EIN:** 942634797
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 0628

**BUSINESS ADDRESS:**
- **STREET 1:** 4650 CUSHING BLVD
- **CITY:** FREMONT
- **STATE:** CA
- **ZIP:** 94538
- **BUSINESS PHONE:** 5106590200

**MAIL ADDRESS:**
- **STREET 1:** 4650 CUSHING PARKWAY
- **CITY:** FREMONT
- **STATE:** CA
- **ZIP:** 94538

### UNITED STATES SECURITIES AND EXCHANGE COMMISSION
**Washington, D.C. 20549**

## FORM 4

### STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

[ ] Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

[x] Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

---

| | | |
|:---|:---|:---|
| **1. Name and Address of Reporting Person**<sup>*</sup><br>BRANDT ERIC<br><sub>(Last) (First) (Middle)</sub><br>C/O LAM RESEARCH CORPORATION<br>4650 CUSHING PARKWAY<br><sub>(Street)</sub><br>FREMONT, CA 94538<br><sub>(City) (State) (Zip)</sub> | **3. Date of Earliest Transaction (Month/Day/Year)**<br>2026-06-12 | **5. Relationship of Reporting Person(s) to Issuer**<br>(Check all applicable)<br>[X] Director [ ] 10% Owner<br>[ ] Officer (give title below) [ ] Other (specify below)<br>_ _ |
| **2. Issuer Name and Ticker or Trading Symbol**<br>LAM RESEARCH CORP [ LRCX ] | **4. If Amendment, Date of Original Filed (Month/Day/Year)**<br>  | **6. Individual or Joint/Group Filing (Check Applicable Line)**<br>[X] Form filed by One Reporting Person<br>[ ] Form filed by More than One Reporting Person |

---

## Table I - Non-Derivative Securities

---

|  |  |  |  |  |  |  |  |  |  |  |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1. Title of Security | 2. Transaction Date | 2A. Deemed Execution Date | 3. Transaction Code (V) | 3. Transaction Code (V) | 4. Securities Acquired (A) or Disposed of (D) | 4. Securities Acquired (A) or Disposed of (D) | 4. Securities Acquired (A) or Disposed of (D) | 5. Amount of Securities Beneficially Owned | 6. Ownership Form | 7. Nature of Indirect Beneficial Ownership |
| 1. Title of Security | 2. Transaction Date | 2A. Deemed Execution Date | Code | V | Amount | (A) or (D) | Price | 5. Amount of Securities Beneficially Owned | 6. Ownership Form | 7. Nature of Indirect Beneficial Ownership |
| Common Stock | 2026-06-12 |  | S |  | 300<sup>(1)</sup> | D | 355.71<sup>(2)</sup> | 198905<sup>(3)</sup> | D |  |
| Common Stock | 2026-06-12 |  | S |  | 1393<sup>(1)</sup> | D | 357.24<sup>(4)</sup> | 197512<sup>(3)</sup> | D |  |
| Common Stock | 2026-06-12 |  | S |  | 1100<sup>(1)</sup> | D | 357.98<sup>(5)</sup> | 196412<sup>(3)</sup> | D |  |
| Common Stock | 2026-06-12 |  | S |  | 3828<sup>(1)</sup> | D | 359.08<sup>(6)</sup> | 192584<sup>(3)</sup> | D |  |
| Common Stock | 2026-06-12 |  | S |  | 1906<sup>(1)</sup> | D | 360.15<sup>(7)</sup> | 190678<sup>(3)</sup> | D |  |
| Common Stock | 2026-06-12 |  | S |  | 819<sup>(1)</sup> | D | 361.21<sup>(8)</sup> | 189859<sup>(3)</sup> | D |  |
| Common Stock | 2026-06-12 |  | S |  | 2708<sup>(1)</sup> | D | 362.40<sup>(9)</sup> | 187151<sup>(3)</sup> | D |  |
| Common Stock | 2026-06-12 |  | S |  | 2345<sup>(1)</sup> | D | 363.33<sup>(10)</sup> | 184806<sup>(3)</sup> | D |  |
| Common Stock | 2026-06-12 |  | S |  | 2300<sup>(1)</sup> | D | 364.41<sup>(11)</sup> | 182506<sup>(3)</sup> | D |  |
| Common Stock | 2026-06-12 |  | S |  | 1200<sup>(1)</sup> | D | 365.16<sup>(12)</sup> | 181306<sup>(3)</sup> | D |  |
| Common Stock | 2026-06-12 |  | S |  | 5803<sup>(1)</sup> | D | 367.01<sup>(13)</sup> | 175503<sup>(3)</sup> | D |  |
| Common Stock | 2026-06-12 |  | S |  | 4030<sup>(1)</sup> | D | 368.03<sup>(14)</sup> | 171473<sup>(3)</sup> | D |  |
| Common Stock | 2026-06-12 |  | S |  | 4198<sup>(1)</sup> | D | 369.16<sup>(15)</sup> | 167275<sup>(3)</sup> | D |  |
| Common Stock | 2026-06-12 |  | S |  | 5037<sup>(1)</sup> | D | 370.27<sup>(16)</sup> | 162238<sup>(3)</sup> | D |  |
| Common Stock | 2026-06-12 |  | S |  | 8233<sup>(1)</sup> | D | 371.17<sup>(17)</sup> | 154005<sup>(3)</sup> | D |  |
| Common Stock | 2026-06-12 |  | S |  | 7700<sup>(1)</sup> | D | 372.23<sup>(18)</sup> | 146305<sup>(3)</sup> | D |  |
| Common Stock | 2026-06-12 |  | S |  | 1600<sup>(1)</sup> | D | 373.09<sup>(19)</sup> | 144705<sup>(3)</sup> | D |  |

---

## Table II - Derivative Securities

---

|  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1. Title of Derivative Security | 2. Conversion or Exercise Price | 3. Transaction Date | 3A. Deemed Execution Date | 4. Transaction Code (V) | 4. Transaction Code (V) | 5. Number of Derivative Securities Acquired (A) or Disposed of (D) | 5. Number of Derivative Securities Acquired (A) or Disposed of (D) | 6. Date Exercisable and Expiration Date | 6. Date Exercisable and Expiration Date | 7. Title and Amount of Underlying Securities | 7. Title and Amount of Underlying Securities | 8. Price of Derivative Security | 9. Number of Derivative Securities Beneficially Owned | 10. Ownership Form | 11. Nature of Indirect Beneficial Ownership |
| 1. Title of Derivative Security | 2. Conversion or Exercise Price | 3. Transaction Date | 3A. Deemed Execution Date | Code | V | (A) | (D) | Date Exercisable | Expiration Date | Title | Amount or Number of Shares | 8. Price of Derivative Security | 9. Number of Derivative Securities Beneficially Owned | 10. Ownership Form | 11. Nature of Indirect Beneficial Ownership |
|  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |

---

### Footnotes:

(1) This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on February 6, 2026.

(2) The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $355.39 to $356.02, inclusive

(3) The amount reported includes shares subject to unvested restricted stock units.

(4) The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $356.685 to $357.67, inclusive

(5) The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $357.68 to $358.35, inclusive

(6) The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $358.73 to $359.54, inclusive

(7) The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $359.84 to $360.79, inclusive

(8) The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $360.85 to $361.83, inclusive

(9) The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $361.87 to $362.82, inclusive

(10) The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $363.92 to $363.77, inclusive

(11) The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $363.92 to $364.85, inclusive

(12) The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $364.98 to $365.67, inclusive

(13) The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $366.56 to $367.55, inclusive

(14) The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $367.62 to $368.49, inclusive

(15) The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $368.70 to $369.64, inclusive

(16) The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $369.70 to $370.69, inclusive

(17) The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $370.70 to $371.59, inclusive

(18) The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $371.77 to $372.76, inclusive

(19) The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $372.79 to $373.36, inclusive

**Signature:** Marta Woods by Power of Attorney  
**Date:** 2026-06-15

### Remarks:

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.

* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).

** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).

Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.

**Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.**