Quarterly report [Sections 13 or 15(d)]

Insider Trading Arrangements

v3.25.1
Insider Trading Arrangements
 3 Months Ended
Mar. 31, 2025
shares
Trading Arrangements, by Individual  
Material Terms of Trading Arrangement
Rule 10b5-1 Trading Plans Adopted by Officers and Directors During the Third Quarter
During the three months ended March 31, 2025, the following officers of the Company each adopted a trading plan to sell and/or gift shares of our common stock that have been or will be issued upon the vesting of RSUs, or purchased in our Employee Stock Purchase Plan, that are intended to satisfy the affirmative defense condition set forth in Rule 10b5-1(c) under the Securities Exchange Act. The material terms of the trading plans other than pricing conditions are set forth in the table below:
Name of Officer
Title of Officer
Date of Adoption
Duration
Maximum Number of Shares to be Sold* ^
Virendra Kirloskar
 Senior Vice President and Chief Accounting Officer February 20, 2025
 373 days **
 2,155 
Brian Lorig Executive Vice President, KLA Global Services February 4, 2025
 386 days ***
 12,477 
Mary Beth Wilkinson Executive Vice President, Chief Legal Officer and Corporate Secretary February 7, 2025
 365 days ****
 8,687 
* Due to pricing conditions in the trading plans, the number of shares actually sold under the trading plans may be less than the maximum number of shares that can be sold. Shares sold under plans upon the vesting of PRSUs where the performance conditions have not been met at the time of plan adoption are calculated at the maximum number of shares that may be issued, with fractional shares disregarded. Shares sold in the future that are issuable under our employee stock purchase plan where the
number of shares to be purchased have not been determined are calculated based on a 15% discount to the price at the opening of the purchase period.
^ For RSUs that have not vested, the maximum number of shares to be sold does not take into account shares withheld for taxes.
** Mr. Kirloskar's trading plan terminates when the last trade is placed under the plan. The last scheduled trade is on January 2, 2026; provided that if any scheduled trades are not placed because of trading conditions set forth in the plan, the trading plan will terminate on February 27, 2026.
*** Mr. Lorig's trading plan terminates when the last trade is placed under the plan. The last scheduled trade is on August 8, 2025; provided that if any scheduled trades are not placed because of trading conditions set forth in the plan, the trading plan will terminate on February 24, 2026.
**** Ms. Wilkinson's trading plan terminates when the last trade is placed under the plan. The last scheduled trade is on August 8, 2025; provided that if any scheduled trades are not placed because of trading conditions set forth in the plan, the trading plan will terminate on February 6, 2026.
Non-Rule 10b5-1 Arrangement Adopted false
Rule 10b5-1 Arrangement Terminated false
Non-Rule 10b5-1 Arrangement Terminated false
Officer Trading Arrangement [Member] | Brian Lorig [Member]  
Trading Arrangements, by Individual  
Name Brian Lorig
Title Executive Vice President, KLA Global Services
Rule 10b5-1 Arrangement Adopted true
Adoption Date February 4, 2025
Expiration Date February 24, 2026
Arrangement Duration 386 days
Aggregate Available 12,477
Officer Trading Arrangement [Member] | Virendra Kirloskar [Member]  
Trading Arrangements, by Individual  
Name Virendra Kirloskar
Title Senior Vice President and Chief Accounting Officer
Rule 10b5-1 Arrangement Adopted true
Adoption Date February 20, 2025
Expiration Date February 27, 2026
Arrangement Duration 373 days
Aggregate Available 2,155
Officer Trading Arrangement [Member] | Mary Beth Wilkinson [Member]  
Trading Arrangements, by Individual  
Name Mary Beth Wilkinson
Title Executive Vice President, Chief Legal Officer and Corporate Secretary
Rule 10b5-1 Arrangement Adopted true
Adoption Date February 7, 2025
Expiration Date February 6, 2026
Arrangement Duration 365 days
Aggregate Available 8,687