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Lam Research (LRCX) SVP granted performance RSUs and stock, shares withheld for taxes

Filing Impact
(Very High)
Filing Sentiment
(Neutral)
Form Type
4

Rhea-AI Filing Summary

LAM RESEARCH CORP Senior Vice President Varadarajan Seshasayee reported equity award grants and related tax withholding transactions. On 02/27/2026, he received 18,820 market-based performance restricted stock units and a separate grant of 12,547 shares of common stock, both at a stated price of $0.00 per share.

The common stock units will vest in three equal installments on 02/27/2027, 02/27/2028, and 02/27/2029. The market-based performance restricted stock units can vest between 0% and 150% on 02/27/2029, based on Lam Research’s total shareholder return versus the PHLX Semiconductor Total Return Index over the period from 02/02/2026 through 02/01/2029.

Several blocks of common stock, including 26,126 shares at $233.89 per share, were automatically withheld to cover tax obligations upon restricted stock unit vesting.

Positive

  • None.

Negative

  • None.
Insider Varadarajan Seshasayee
Role Senior Vice President
Type Security Shares Price Value
Grant/Award Market-based Performance Restricted Stock Unit 18,820 $0.00 --
Grant/Award Common Stock 12,547 $0.00 --
Tax Withholding Common Stock 26,126 $233.89 $6.11M
Tax Withholding Common Stock 3,168 $233.89 $741K
Tax Withholding Common Stock 2,572 $233.89 $602K
Tax Withholding Common Stock 5,047 $233.89 $1.18M
holding Common Stock -- -- --
Holdings After Transaction: Market-based Performance Restricted Stock Unit — 18,820 shares (Direct); Common Stock — 262,111 shares (Direct); Common Stock — 2,366.932 shares (Indirect, By 401(k))
Footnotes (1)
  1. The restricted stock units will vest in three equal installments on 02/27/2027, 02/27/2028, and 02/27/2029. The amount reported includes shares subject to unvested restricted stock units. Represents shares that were automatically withheld upon vesting of restricted stock units to satisfy tax withholding obligations. The Market-based performance restricted stock units will vest between 0% and 150% on 2/27/2029. The performance of this award is based on the percentile ranking of Lam Research's Total Shareholder Return relative to the Total Shareholder Return of the companies in the PHLX Semiconductor Total Return Index during the performance period of 02/2/2026 through 02/01/2029.
Form 4 Insider Transactions: What Each Field Means →
SEC Form 4
FORM 4 UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940
OMB APPROVAL
OMB Number: 3235-0287
Estimated average burden
hours per response: 0.5
Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
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*
Varadarajan Seshasayee
(Last) (First) (Middle)
C/O LAM RESEARCH CORPORATION
4650 CUSHING PARKWAY
(Street)
FREMONT CA 94538
(City) (State) (Zip)
2. Issuer Name and Ticker or Trading Symbol
LAM RESEARCH CORP [ LRCX ] 		5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
Director 10% Owner
X Officer (give title below) Other (specify below)
Senior Vice President
3. Date of Earliest Transaction (Month/Day/Year)
02/27/2026
4. If Amendment, Date of Original Filed (Month/Day/Year)
 6. Individual or Joint/Group Filing (Check Applicable Line)
X Form filed by One Reporting Person
Form filed by More than One Reporting Person
Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4)
Code V Amount (A) or (D) Price
Common Stock 02/27/2026 A 12,547(1) A $0 262,111(2) D
Common Stock 02/27/2026 F 26,126(3) D $233.89 235,985(2) D
Common Stock 02/27/2026 F 3,168(3) D $233.89 232,817(2) D
Common Stock 02/27/2026 F 2,572(3) D $233.89 230,245(2) D
Common Stock 02/27/2026 F 5,047(3) D $233.89 225,198(2) D
Common Stock 2,366.932 I By 401(k)
Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year) 3A. Deemed Execution Date, if any (Month/Day/Year) 4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 6. Date Exercisable and Expiration Date (Month/Day/Year) 7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4)
Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares
Market-based Performance Restricted Stock Unit $0 02/27/2026 A 18,820 (4) (4) Common Stock 18,820 $0 18,820 D
Explanation of Responses:
1. The restricted stock units will vest in three equal installments on 02/27/2027, 02/27/2028, and 02/27/2029.
2. The amount reported includes shares subject to unvested restricted stock units.
3. Represents shares that were automatically withheld upon vesting of restricted stock units to satisfy tax withholding obligations.
4. The Market-based performance restricted stock units will vest between 0% and 150% on 2/27/2029. The performance of this award is based on the percentile ranking of Lam Research's Total Shareholder Return relative to the Total Shareholder Return of the companies in the PHLX Semiconductor Total Return Index during the performance period of 02/2/2026 through 02/01/2029.
Remarks:
Marta Woods by Power of Attorney 03/02/2026
** Signature of Reporting Person Date
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.

Source: View Original Filing on SEC EDGAR