# EDGAR Filing Document

**Accession Number:** 0000707549
**File Stem:** 0001190639-26-000004
**Filing Date:** 2026-6
**Character Count:** 13013
**Document Hash:** 40801499c79f7be53f1dc97f45ee202b
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001190639-26-000004.hdr.sgml**: 20260615

**ACCESSION NUMBER**: 0001190639-26-000004

**CONFORMED SUBMISSION TYPE**: 4

**PUBLIC DOCUMENT COUNT**: 1

**CONFORMED PERIOD OF REPORT**: 20260611

**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:** 261089885

**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>2026-06-11 | **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 | 2026-06-11 |  | S |  | 974<sup>(1)</sup> | D | 337.56<sup>(2)</sup> | 252731<sup>(3)</sup> | D |  |
| Common Stock | 2026-06-11 |  | S |  | 1083<sup>(1)</sup> | D | 338.62<sup>(4)</sup> | 251648<sup>(3)</sup> | D |  |
| Common Stock | 2026-06-11 |  | S |  | 1895<sup>(1)</sup> | D | 339.75<sup>(5)</sup> | 249753<sup>(3)</sup> | D |  |
| Common Stock | 2026-06-11 |  | S |  | 1277<sup>(1)</sup> | D | 340.68<sup>(6)</sup> | 248476<sup>(3)</sup> | D |  |
| Common Stock | 2026-06-11 |  | S |  | 1070<sup>(1)</sup> | D | 341.81<sup>(7)</sup> | 247406<sup>(3)</sup> | D |  |
| Common Stock | 2026-06-11 |  | S |  | 3644<sup>(1)</sup> | D | 342.91<sup>(8)</sup> | 243762<sup>(3)</sup> | D |  |
| Common Stock | 2026-06-11 |  | S |  | 1481<sup>(1)</sup> | D | 343.96<sup>(9)</sup> | 242281<sup>(3)</sup> | D |  |
| Common Stock | 2026-06-11 |  | S |  | 3208<sup>(1)</sup> | D | 344.92<sup>(10)</sup> | 239073<sup>(3)</sup> | D |  |
| Common Stock | 2026-06-11 |  | S |  | 2832<sup>(1)</sup> | D | 345.84<sup>(11)</sup> | 236241<sup>(3)</sup> | D |  |
| Common Stock | 2026-06-11 |  | S |  | 3442<sup>(1)</sup> | D | 346.79<sup>(12)</sup> | 232799<sup>(3)</sup> | D |  |
| Common Stock | 2026-06-11 |  | S |  | 6592<sup>(1)</sup> | D | 347.86<sup>(13)</sup> | 226207<sup>(3)</sup> | D |  |
| Common Stock | 2026-06-11 |  | S |  | 4334<sup>(1)</sup> | D | 348.73<sup>(14)</sup> | 221873<sup>(3)</sup> | D |  |
| Common Stock | 2026-06-11 |  | S |  | 1517<sup>(1)</sup> | D | 349.79<sup>(15)</sup> | 220356<sup>(3)</sup> | D |  |
| Common Stock | 2026-06-11 |  | S |  | 36<sup>(1)</sup> | D | $350.77 | 220320<sup>(3)</sup> | D |  |
| Common Stock | 2026-06-11 |  | S |  | 1172<sup>(1)</sup> | D | 353.52<sup>(16)</sup> | 219148<sup>(3)</sup> | D |  |
| Common Stock | 2026-06-11 |  | S |  | 1461<sup>(1)</sup> | D | 354.08<sup>(17)</sup> | 217687<sup>(3)</sup> | D |  |
| Common Stock | 2026-06-11 |  | S |  | 1331<sup>(1)</sup> | D | 355.50<sup>(18)</sup> | 216356<sup>(3)</sup> | D |  |
| Common Stock | 2026-06-11 |  | S |  | 1653<sup>(1)</sup> | D | 356.27<sup>(19)</sup> | 214703<sup>(3)</sup> | D |  |
| Common Stock | 2026-06-11 |  | S |  | 1455<sup>(1)</sup> | D | 357.06<sup>(20)</sup> | 213248<sup>(3)</sup> | D |  |
| Common Stock | 2026-06-11 |  | S |  | 1880<sup>(1)</sup> | D | 358.22<sup>(21)</sup> | 211368<sup>(3)</sup> | D |  |
| Common Stock | 2026-06-11 |  | S |  | 780<sup>(1)</sup> | D | 359.24<sup>(22)</sup> | 210588<sup>(3)</sup> | D |  |
| Common Stock | 2026-06-11 |  | S |  | 664<sup>(1)</sup> | D | 360.24<sup>(23)</sup> | 209924<sup>(3)</sup> | D |  |
| Common Stock | 2026-06-11 |  | S |  | 1756<sup>(1)</sup> | D | 361.05<sup>(24)</sup> | 208168<sup>(3)</sup> | D |  |
| Common Stock | 2026-06-11 |  | S |  | 2604<sup>(1)</sup> | D | 362.20<sup>(25)</sup> | 205564<sup>(3)</sup> | D |  |
| Common Stock | 2026-06-11 |  | S |  | 5717<sup>(1)</sup> | D | 362.95<sup>(26)</sup> | 199847<sup>(3)</sup> | D |  |
| Common Stock | 2026-06-11 |  | S |  | 642<sup>(1)</sup> | D | 364<sup>(27)</sup> | 199205<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 $337.00 to $337.97, 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 $338.19 to $339.15, 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 $339.23 to $340.20, 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 $340.278 to $341.249, 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 $341.418 to $342.202, 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 $342.415 to $343.39, 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 $343.40 to $344.377, 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 $344.396 to $345.348, 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 $345.386 to $346.336, 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 $346.383 to $347.359, 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 $347.383 to $348.355, 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 $348.391 to $349.351, 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 $349.409 to $350.260, 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 $352.824 to $353.805, 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 $353.818 to $354.743, 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 $354.805 to $355.746, 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 $355.75 to $356.709, inclusive

(20) The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $356.759 to $357.703, inclusive

(21) The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $357.762 to $358.70, inclusive

(22) The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $358.79 to $359.735, inclusive

(23) The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $359.819 to $360.59, inclusive

(24) The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $360.60 to $361.54, inclusive

(25) The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $361.595 to $362.550, inclusive

(26) The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $362.58 to $363.57, inclusive

(27) The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $363.765 to $364.37, 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.**