KLA CORP
For the period ended Mar 31, 2026. Filed Apr 30, 2026.
View on SEC.govAbout this filing
A company's report for each of its first three quarters. The financial statements are not audited. It shows how the business has moved since the last annual report, and what management says changed.
Mar 31, 2026 · Filed Apr 30, 2026
KLAC$151.38+9.3%Stored close · as of Nov 9, 2026
What changed in Risk Factors?
Read the current filingPrevious report: 10-Q
Period ended 2025-12-31; filed 2026-01-30.
0000319201-26-000008
Item 1A. Risk FactorsUnregistered Sales of Equity Securitiesand Use of ProceedsDefaults Upon Senior SecuritiesMine Safety DisclosuresCurrent report: 10-Q
Period ended 2026-03-31; filed 2026-04-30.
0000319201-26-000016
Item 1A. Risk FactorsUnregistered Sales of Equity Securitiesand Use of ProceedsDefaults Upon Senior SecuritiesMine Safety DisclosuresThe baseline is this issuer’s latest earlier reporting period of the same form that was filed before the current report. A previous 10-Q is a different quarter, not a year-over-year comparison. Amendments are excluded.
Compared 33 previous paragraphs and 45 current paragraphs.
30 unchanged; 3 reworded; 12 added; 0 removed; 0 previous and 0 current paragraphs rearranged.
Tables are not compared: 1 previous and 1 current tables excluded. Dates, whitespace, punctuation and numbering changes are ignored; changes to financial figures remain significant.
A changed paragraph is not evidence that risk increased or decreased. An unchanged paragraph does not establish that risk stayed the same.
Added paragraphs (12)
Current report
Recently announced and future U.S. tariffs or other restrictions placed on imports, retaliatory trade measures taken by other countries and resulting trade wars may have a material adverse impact on our results of operations.
Current report
In 2025, the U.S. implemented a number of tariffs on goods imported into the U.S., on a country and industry-specific basis (including aluminum, copper and steel). While some of the U.S. Tariffs have been paused, certain U.S. Tariffs are currently in effect, including a base tariff on nearly all imports into the U.S., certain reciprocal tariffs by country, and certain sectoral tariffs on copper, aluminum and steel, among others. In retaliation to the tariffs imposed on U.S. imports, a number of other countries announced reciprocal tariffs on goods imported from the U.S. While most countries paused their reciprocal tariffs on U.S. imported goods, those reciprocal tariffs could be reinstated at any time. Tariffs imposed by the U.S. on goods imported into the U.S. and tariffs imposed by other countries on U.S. goods imported into those countries may continue to evolve.
Current report
In April 2025, Commerce announced the initiation of investigations into the effects on U.S. national security of imports of semiconductors under Section 232 of the Trade Expansion Act of 1962. The scope of the investigations include semiconductors, semiconductor manufacturing equipment and their derivative products including semiconductor substrates and bare wafers, legacy chips, leading-edge chips, microelectronics and other components. While the results of the investigations are currently unknown, they may result in additional tariffs and trade restrictions which may adversely impact our business.
Current report
In February 2026, the U.S. Supreme Court ruled that tariffs imposed under the International Emergency Economic Powers Act were not authorized, creating uncertainty around the status of prior tariffs, potential refund processes and the scope of future presidential tariff authority. This ruling adds volatility to an already fluid tariff environment and may result in rapid changes in tariff rates, shifts in enforcement, delays in customs processing and increased uncertainty in supply chain and capital planning for us and our customers.
Current report
The U.S. Tariffs have increased our cost of revenues due to the increase in the cost of importing foreign sourced components to our U.S. facilities to build the products that we manufacture in the U.S. Tariffs imposed on U.S. goods by other countries may harm demand for our products from customers in those regions, or may cause our customers in those regions to push out or cancel previously placed purchase orders. In addition, we have had to return deposits given to us by our customers upon cancellation of their purchase orders. Moreover, tariffs can make it difficult for us and our customers and suppliers to make and execute business and capital equipment investment plans or increase supply chain complexity, which may have an impact on our ability to source the materials necessary to manufacture our products.
Current report
Our efforts to address these risks, such as through operational adjustments and pricing strategies, may not be successful. Such efforts may need time to take effect and may have an adverse impact on our results of operations.
Current report
Unless rescinded or exemptions apply, tariffs and any escalations in the trade war could significantly harm our business, financial condition and results of operations.
Current report
We rely upon certain critical information systems for our daily business operations. Our inability to use or access our information systems at critical points in time could unfavorably impact our business operations.
Current report
Our global operations are dependent upon certain information systems, including telecommunications, the internet, our corporate intranet, network communications, email and various computer hardware and software applications. System failures or malfunctions, such as difficulties with our customer and supplier relationship management systems, could disrupt our operations and our ability to timely and accurately process and report key components of our financial results. Our enterprise resource planning (“ERP”) system is integral to our ability to accurately and efficiently maintain our books and records, record transactions, provide critical information to our management, and prepare our financial statements. We are currently upgrading our ERP system, with implementation expected to be completed in the first quarter of fiscal year 2027. Implementation of an upgrade to an ERP system requires the investment of significant resources and could lead to data migration issues, administrative and technical problems, and delays. Moreover, once our ERP system is upgraded, it may not operate as we expect it to. Any disruptions or difficulties that may occur in connection with our ERP system or other systems (whether in connection with the regular operation, periodic enhancements, modifications or upgrades of such systems or the integration of our acquired businesses into such systems, or due to cybersecurity events such as ransomware attacks, including attacks on the information systems of our business partners and other third parties) could adversely affect our ability to complete important business processes, such as the evaluation of our internal controls over financial reporting pursuant to Section 404 of the Sarbanes-Oxley Act of 2002. Any of these events could have an adverse effect on our business, operating results and financial condition.
Current report
We are predominantly uninsured for losses and interruptions caused by terrorist acts and acts of war. If international political instability or geopolitical tensions continue or increase, our business and results of operations could be harmed.
Current report
The threat of terrorism targeted at, or acts of war in, the regions of the world in which we do business increases the uncertainty in our markets. Any act of terrorism or war that affects the economy or the industries we serve could adversely affect our business. Increased international political instability or geopolitical tensions in various parts of the world, disruption in air transportation and further enhanced security measures as a result of terrorist attacks may hinder our ability to do business and may increase our costs of operations.
Current report
We maintain significant operations in Israel. Since the establishment of the State of Israel in 1948, a number of armed conflicts have taken place between Israel and its Arab neighbors, and a state of hostility varying in degree and intensity has led to security and economic challenges for Israel. Persistent hostilities involving Iran and Iran-backed groups, including Hezbollah in Lebanon and Hamas in the Gaza Strip, have involved missile strikes against civilian targets in various parts of Israel and attacks on marine vessels traversing the Red Sea. The recent escalation of conflicts in the region has heightened instability, disrupted airspace, and increased freight and insurance costs. Disruptions in shipping routes in the Red Sea could result in delays in shipping our products to customers, which could delay the timing of revenue recognition and create uncertainty related to timeliness of shipments from the region. In addition, some of our employees in Israel are obligated to perform annual reserve duty in the Israel Defense Forces, and may be called to active military duty in emergency circumstances. The ongoing conflicts, including additional military actions, retaliatory measures, sanctions, cyberattacks, or other governmental or market responses, could lead to further disruption of global energy supplies, heighten inflationary pressures on our input costs, adversely affect global supply chains, commodity prices, currency exchange rates, financial markets and overall macroeconomic conditions. These developments could impact our ability to operate our business directly and indirectly through a similar impact on our suppliers and customers.
Reworded paragraphs (3)
Previous wording
We have faced delays and could face additional delays or denials in the export of our tools by regulatory agencies for national security or other regulatory concerns in the countries in which we do business, which could negatively affect our results of operations and timing of revenue recognition. We have controls and procedures designed to maintain compliance with U.S. and other applicable export control laws and regulations; however, we cannot guarantee that such controls and procedures will be successful in preventing violations or allegations of violations, of increasingly complex and often conflicting regulations worldwide. The complexity and evolving nature of the rules and regulations, and the fact that Commerce or other relevant regulators might adopt interpretations of regulations that differ from those of the Company, increase our risk of non-compliance.
Current wording
We have faced delays and could face additional delays or denials in the export of our tools by regulatory agencies for national security or other regulatory concerns in the countries in which we do business, which could negatively affect our results of operations and timing of revenue recognition. We have controls and procedures designed to maintain compliance with U.S. and other applicable export control laws and regulations; however, we cannot guarantee that such controls and procedures will be successful in preventing violations or allegations of violations, of increasingly complex and often conflicting regulations worldwide. Recently, some of our products destined for China have been held up by U.S. Customs and Border Protection due to questions about the nature of the customer or about the capabilities of our products. We cannot make any assurance that products that have been held up will be cleared for shipment in a timely manner or without a license. Shipment delays or cancellations could have an adverse effect on our financial condition and results of operations. The complexity and evolving nature of the rules and regulations, and the fact that Commerce or other relevant regulators might adopt interpretations of regulations that differ from those of the Company, increase our risk of non-compliance.
Previous wording
A supplier may discontinue production of a particular part for any number of reasons, including the supplier’s financial condition or business operational decisions, which would require us to purchase, in a single transaction, a large number of such discontinued parts in order to ensure that a continuous supply of such parts remains available to our customers. Such “end-of-life” parts purchases could result in significant expenditures by us in a particular period, and, ultimately, any unused parts may result in a significant inventory write-off, either of which could have an adverse impact on our financial condition and results of operations for the applicable periods. Recently, a few large suppliers have discontinued manufacturing certain DRAM chips that are incorporated in a number of our products, and the resulting shortage has caused a dramatic increase in the prices to acquire these chips. Our efforts to procure these chips also contributed to an increase in purchase commitments in the second quarter of fiscal 2026. We estimate that the additional costs to procure these DRAM chips will have an adverse impact on our gross margin in calendar 2026. If we are unable to acquire adequate supply of such chips or acquire them in a timely or cost-controlled manner, our results of operations could be harmed.
Current wording
A supplier may discontinue production of a particular part for any number of reasons, including the supplier’s financial condition or business operational decisions, which would require us to purchase, in a single transaction, a large number of such discontinued parts in order to ensure that a continuous supply of such parts remains available to our customers. Such “end-of-life” parts purchases could result in significant expenditures by us in a particular period, and, ultimately, any unused parts may result in a significant inventory write-off, either of which could have an adverse impact on our financial condition and results of operations for the applicable periods. Recently, a few large suppliers have discontinued manufacturing certain DRAM chips that are incorporated in a number of our products, and the resulting shortage has caused a dramatic increase in the prices to acquire these chips. Our efforts to procure these chips have contributed to an increase in purchase commitments in fiscal 2026. We estimate that the additional costs to procure these DRAM chips will continue to have an adverse impact on our gross margin in calendar 2026. If we are unable to acquire adequate supply of such chips or acquire them in a timely or cost-controlled manner, our results of operations could be harmed.
Previous wording
(1)Our Board of Directors has authorized a program that permits us to repurchase our common stock, including a $5.00 billion increase approved by the Board in the fourth quarter of fiscal 2025. As of December 31, 2025, $3.94 billion remained available for repurchases under our repurchase program. All shares in the table were purchased pursuant to our publicly announced repurchase program.
Current wording
(1)Our Board of Directors has authorized a program that permits us to repurchase our common stock, including a $7.00 billion increase approved by the Board in the third quarter of fiscal 2026. As of March 31, 2026, $10.31 billion remained available for repurchases under our repurchase program. All shares in the table were purchased pursuant to our publicly announced repurchase program.