FORM 4 [ ] Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).         
UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES
                                                                                  
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Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934 or Section 30(h) of the Investment Company Act of 1940
                      
1. Name and Address of Reporting Person * Khan Ahmad A. 2. Issuer Name and Ticker or Trading Symbol KLA CORP [ KLAC ] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable)_____ Director                    _____ 10% Owner
__X__ Officer (give title below)    _____ Other (specify below)
President, Semi Proc. Control
(Last)         (First)         (Middle)
ONE TECHNOLOGY DRIVE
3. Date of Earliest Transaction (MM/DD/YYYY)
11/20/2019
(Street)
MILPITAS, CA 95035
(City)       (State)       (Zip)
4. If Amendment, Date Original Filed (MM/DD/YYYY)
 
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. Trans. Date 2A. Deemed Execution Date, if any 3. Trans. 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 - Restricted Stock Units (1) 11/20/2019    A    15195 (2) A $0  57769 (3) D   
Common Stock  11/20/2019    S    4142 (4) D $176.13  7107  D   

Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivate Security
(Instr. 3)
2. Conversion or Exercise Price of Derivative Security 3. Trans. Date 3A. Deemed Execution Date, if any 4. Trans. 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 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 of Derivative Security: 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

Explanation of Responses:
(1)  Each restricted stock unit ("RSU") represents a contingent right to receive one share of KLA common stock.
(2)  On March 20, 2019, the reporting person was granted performance-based RSUs that would be eligible to vest, subject to continued service on each vesting date, in three equal installments as early as the third, fourth and fifth anniversaries of the grant date provided that the trailing 20-day average of the closing price of KLA common stock plus cash dividends distributed per share since the grant date exceeded $174.5865, $203.6843 and $232.782, respectively. On November 20, 2019, it was determined that the 20-day trailing average plus cash dividends distributed per share since the grant date exceeded the first threshold of $174.5865. As a result, 15,195 shares became eligible to vest on March 20, 2022, subject to continued service on that date.
(3)  Does not include performance-based RSUs, if any, held by the Reporting Person for which an assessment has not yet been made regarding the achievement of the applicable performance goals. Any such holdings will be reported on a Form 4 within two business days of the date such assessment is made.
(4)  This sale was effected pursuant to the terms of a Rule 10b5-1 trading plan adopted by the Reporting Person on June 4, 2019.

Reporting Owners
Reporting Owner Name / Address
Relationships
Director 10% Owner Officer Other
Khan Ahmad A.
ONE TECHNOLOGY DRIVE
MILPITAS, CA 95035


President, Semi Proc. Control

Signatures
/s/ Teri Little as Attorney-in-Fact for Ahmad A. Khan 11/21/2019
**Signature of Reporting Person Date
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