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DEBT | 12 Months Ended
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Jun. 30, 2025
Debt Disclosure [Abstract] |
DEBT | DEBT The following table summarizes our debt as of June 30, 2025 and June 30, 2024:
| As of June 30, 2025 |  | As of June 30, 2024
| Amount (In thousands) |  | Effective Interest Rate |  | Amount (In thousands) |  | Effective Interest Rate
Fixed-rate 4.650% Senior Notes due on November 1, 2024 | $ | — |  |  | — | % |  | $ | 750,000 |  |  | 4.682 | %
Fixed-rate 4.100% Senior Notes due on March 15, 2029 | 800,000 |  |  | 4.159 | % |  | 800,000 |  |  | 4.159 | %
Fixed-rate 4.650% Senior Notes due on July 15, 2032 | 1,000,000 |  |  | 4.657 | % |  | 1,000,000 |  |  | 4.657 | %
Fixed-rate 4.700% Senior Notes due on February 1, 2034 | 500,000 |  |  | 4.777 | % |  | 500,000 |  |  | 4.777 | %
Fixed-rate 5.650% Senior Notes due on November 1, 2034 | 250,000 |  |  | 5.670 | % |  | 250,000 |  |  | 5.670 | %
Fixed-rate 5.000% Senior Notes due on March 15, 2049 | 400,000 |  |  | 5.047 | % |  | 400,000 |  |  | 5.047 | %
Fixed-rate 3.300% Senior Notes due on March 1, 2050 | 750,000 |  |  | 3.302 | % |  | 750,000 |  |  | 3.302 | %
Fixed-rate 4.950% Senior Notes due on July 15, 2052 | 1,450,000 |  |  | 5.023 | % |  | 1,450,000 |  |  | 5.023 | %
Fixed-rate 5.250% Senior Notes due on July 15, 2062 | 800,000 |  |  | 5.259 | % |  | 800,000 |  |  | 5.259 | %
Total | 5,950,000 |  |  |  |  | 6,700,000 |  |  |
Unamortized discount | (23,338) |  |  |  |  | (24,866) |  |  |
Unamortized debt issuance costs | (42,405) |  |  |  |  | (44,999) |  |  |
Total | $ | 5,884,257 |  |  |  |  | $ | 6,630,135 |  |  |
Reported as: |  |  |  |  |  |  |
Current portion of long-term debt | $ | — |  |  |  |  | $ | 749,936 |  |  |
Long-term debt | 5,884,257 |  |  |  |  | 5,880,199 |  |  |
Total | $ | 5,884,257 |  |  |  |  | $ | 6,630,135 |  |  |
Senior Notes and Debt Redemption: In November 2024, we repaid $750.0 million of the Senior Notes that were due on November 1, 2024. In February 2024, KLA Corporation (the “Issuer”) issued $750.0 million aggregate principal amount of senior, unsecured notes as follows: $500.0 million of 4.700% senior, unsecured notes (the “2024 Senior Notes”) due February 1, 2034; and an additional $250.0 million of 4.950% senior, unsecured notes due July 15, 2052 which was originally issued in June 2022, resulting in an aggregate principal amount of $1.45 billion. The net proceeds were used for general corporate purposes, including repayment of outstanding indebtedness. In June 2022, we issued $3.00 billion aggregate principal amount of senior, unsecured notes (the “2022 Senior Notes”) as follows: $1.00 billion of 4.650% senior, unsecured notes due July 15, 2032; $1.20 billion of 4.950% senior, unsecured notes due July 15, 2052; and $800.0 million of 5.250% senior, unsecured notes due July 15, 2062. A portion of the net proceeds of the 2022 Senior Notes was used to complete a tender offer in July 2022 for $500.0 million of our 2014 Senior Notes due 2024 including associated redemption premiums, accrued interest and other fees and expenses. The redemption resulted in a pre-tax net loss on extinguishment of debt of $13.3 million for the fiscal year ended June 30, 2023. The remainder of the net proceeds was used for share repurchases and for general corporate purposes. In February 2020, March 2019 and November 2014, we issued $750.0 million, $1.20 billion and $2.50 billion, respectively (the “2020 Senior Notes,” “2019 Senior Notes” and “2014 Senior Notes,” respectively, and, collectively with the 2024 and 2022 Senior Notes, the “Senior Notes”) aggregate principal amount of senior, unsecured notes. In July 2022, February 2020, October 2019 and November 2017, we repaid $500.0 million, $500.0 million, $250.0 million and $250.0 million of the Senior Notes, respectively. The original discounts on the Senior Notes are being amortized over the life of the debt. Interest is payable as follows: semi-annually on February 1 and August 1 of each year for the 2024 Senior Notes; semi-annually on January 15 and July 15 of each year for the 2022 Senior Notes; semi-annually on March 1 and September 1 of each year for the 2020 Senior Notes; semi-annually on March 15 and September 15 of each year for the 2019 Senior Notes; and semi-annually on May 1 and November 1 of each year for the 2014 Senior Notes. The relevant indentures for the Senior Notes (collectively, the “Indenture”) include covenants that limit our ability to grant liens on our facilities and enter into sale and leaseback transactions. The Senior Notes rank senior in right of payment to all of the Issuer's future subordinated indebtedness, equally in right of payment with all of the Issuer's existing and future unsecured and unsubordinated indebtedness, are effectively subordinated in right of payment to all of the Issuer's future secured indebtedness to the extent of the collateral securing such indebtedness and structurally subordinated in right of payment to all existing and future indebtedness and other liabilities of the Issuer's subsidiaries. In certain circumstances involving a change of control followed by a downgrade of the rating of a series of Senior Notes by at least two of Moody’s Investors Service, S&P Global Ratings and Fitch Inc., unless we have exercised our rights to redeem the Senior Notes of such series, we will be required to make an offer to repurchase all or, at the holder’s option, any part, of each holder’s Senior Notes of that series pursuant to the offer described below (the “Change of Control Offer”). In the Change of Control Offer, we will be required to offer payment in cash equal to 101% of the aggregate principal amount of Senior Notes repurchased plus accrued and unpaid interest, if any, on the Senior Notes repurchased, up to, but not including, the date of repurchase. The fair value of the Senior Notes as of June 30, 2025 and 2024 was $5.54 billion and $6.26 billion, respectively. While the Senior Notes are recorded at cost, the fair value of the long-term debt was determined based on quoted prices in markets that are not active; accordingly, the long-term debt is categorized as Level 2 for purposes of the fair value measurement hierarchy. As of June 30, 2025, we were in compliance with all of our covenants under the Indenture associated with the Senior Notes. Revolving Credit Facility: On July 3, 2025, we replaced our existing revolving credit facility (see Note 20 “Subsequent Events”). As of June 30, 2025, we had in place a Credit Agreement dated June 8, 2022 (“Prior Credit Agreement”) for an unsecured Revolving Credit Facility (“Prior Revolving Credit Facility”) having a maturity date of June 8, 2027 that allowed us to borrow up to $1.50 billion. Subject to the terms of the Prior Credit Agreement, the Prior Revolving Credit Facility could have been increased by an amount up to $250.0 million in the aggregate. As of June 30, 2025 and 2024, we had no outstanding borrowings under the Prior Revolving Credit Facility. We could borrow, repay and reborrow funds under the Prior Revolving Credit Facility until the maturity date, at which time we could exercise two one-year extension options with the consent of the lenders. We could prepay outstanding borrowings under the Prior Revolving Credit Facility at any time without a prepayment penalty. Under the Prior Credit Agreement, borrowings could be made as Term Secured Overnight Financing Rate (“SOFR”) Loans or Alternate Base Rate (“ABR”) Loans, at the Company’s option. In the event that Term SOFR was unavailable, any Term SOFR elections would be converted to Daily Simple SOFR, if available. Each Term SOFR Loan would bear interest at a rate per annum equal to the applicable Adjusted Term SOFR rate, which is equal to the applicable Term SOFR rate plus 10 bps that shall not be less than zero, plus a spread ranging from 75 bps to 125 bps, as determined by the Company’s credit ratings at the time. Each ABR Loan would bear interest at a rate per annum equal to the ABR plus a spread ranging from 0 bps to 25 bps, as determined by the Company’s credit ratings at the time. We were also obligated to pay an annual commitment fee on the daily undrawn balance of the Prior Revolving Credit Facility, which ranges from 4.5 bps to 12.5 bps, subject to an adjustment in conjunction with changes to our credit rating. The applicable interest rates and commitment fees were also subject to adjustment based on the Company’s performance against certain environmental sustainability key performance indicators (“KPI”) related to greenhouse gas (“GHG”) emissions and renewable electricity usage. Our performance against these KPIs in calendar year 2024 resulted in reductions to the fees associated with our Prior Revolving Credit Facility. As of June 30, 2025, the applicable commitment fee on the daily undrawn balance of the Prior Revolving Credit Facility was 5.5 bps. Under the Prior Credit Agreement, the maximum leverage ratio on a quarterly basis, was 3.50 to 1.00, covering the trailing four consecutive fiscal quarters for each fiscal quarter, which could have been increased to 4.00 to 1.00 for a period of time in connection with a material acquisition or a series of material acquisitions. As of June 30, 2025, our maximum allowed leverage ratio was 3.50 to 1.00. We were in compliance with all covenants under the Prior Credit Agreement as of June 30, 2025.

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