LAM RESEARCH CORP files 8-K: results of operations

Item 2.02. Results of Operations and Financial Condition 3

FOR IMMEDIATE RELEASE

Lam Research Corporation Reports Financial Results for the Quarter Ended September 27, 2026

FREMONT, Calif., October 21, 2026 - Lam Research Corporation (the "Company," "Lam," "Lam Research") today announced financial results for the quarter ended September 27, 2026 (the “September 2026 quarter”).

Highlights for the September 2026 quarter were as follows:

• Revenue of $8.22 billion.

• U.S. GAAP gross margin as a percent of revenue of 52.3%, U.S. GAAP operating margin as a percent of revenue of 40.0%, and U.S. GAAP diluted EPS of $2.19.

• Non-GAAP gross margin as a percent of revenue of 52.4%, non-GAAP operating margin as a percent of revenue of 40.2%, and non-GAAP diluted EPS of $2.20.

Key Financial Data for the Quarters Ended

September 27, 2026 and June 28, 2026 (in thousands, except per share data, percentages, and basis points)

U.S. GAAP Financial Results

For the September 2026 quarter, revenue was $8.22 billion, gross margin was $4.30 billion, or 52.3% of revenue, operating expenses were $1.02 billion, operating margin was 40.0%, and net income was $2.75 billion, or $2.19 per diluted share on a U.S. GAAP basis. This compares to revenue of $6.72 billion, gross margin of $3.48 billion, or 51.7% of revenue, operating expenses of $965.3 million, operating margin of 37.4%, and net income of $2.28 billion, or $1.81 per diluted share, for the quarter ended June 28, 2026 (the “June 2026 quarter”).

Non-GAAP Financial Results

For the September 2026 quarter, non-GAAP gross margin was $4.31 billion, or 52.4% of revenue, non-GAAP operating expenses were $1.00 billion, non-GAAP operating margin was 40.2%, and non-GAAP net income was $2.77 billion, or $2.20 per diluted share. This compares to non-GAAP gross margin of $3.50 billion, or 52.0% of revenue, non-GAAP operating expenses of $916.4 million, non-GAAP operating margin of 38.4%, and non-GAAP net income of $2.28 billion, or $1.82 per diluted share, for the June 2026 quarter.

“With AI driving higher semiconductor demand and greater device complexity, our focus on operational execution helped Lam deliver record revenue, profit, and earnings per share in the September quarter,” said Tim Archer, Lam Research's President and Chief Executive Officer. “Our strategic investments in technology inflections and manufacturing capacity are paying off, strengthening our ability to outgrow the wafer fabrication equipment market as the industry expands.”

Balance Sheet and Cash Flow Results

Cash, cash equivalents, and restricted cash balances increased to $7.45 billion at the end of the September 2026 quarter compared to $5.60 billion at the end of the June 2026 quarter. The increase was primarily the result of cash generated from operating activities during the quarter partially offset by cash deployed for capital return activities and capital expenditures.

Deferred revenue at the end of the September 2026 quarter increased to $2.66 billion compared to $2.43 billion as of the end of the June 2026 quarter. Lam's deferred revenue balance does not include shipments to customers in Japan, to whom control does not transfer until customer acceptance. Shipments to customers in Japan are classified as inventory at cost until the time of acceptance. The estimated future revenue from shipments to customers in Japan was approximately $468.3 million as of September 27, 2026 and $490.2 million as of June 28, 2026.

Revenue

The geographic distribution of revenue during the September 2026 quarter is shown in the following table:

The following table presents revenue disaggregated between systems and customer support-related revenue:

Systems revenue includes sales of new leading-edge equipment in deposition, etch, clean, and other wafer fabrication markets.

Customer support-related revenue includes sales of customer services, spares, upgrades, and non-leading-edge equipment from our Reliant® product line.

Outlook

For the quarter ending December 27, 2026, Lam is providing the following guidance:

The information provided above is only an estimate of what the Company believes is realizable as of the date of this release and does not incorporate the potential impact of any business combinations, asset acquisitions, divestitures, restructuring, balance sheet valuation adjustments, financing arrangements, other investments, or other items that may be completed or realized after the date of this release, except as described below. U.S. GAAP to non-GAAP reconciling items provided include only those items that are known and can be estimated as of the date of this release. Actual results will vary from this model and the variations may be material. Reconciling items included above are as follows:

• Gross margin - amortization related to intangible assets acquired through certain business combinations, $2.7 million.

• Operating margin - amortization related to intangible assets acquired through certain business combinations, $3.0 million.

• Net income per diluted share - amortization related to intangible assets acquired through certain business combinations, $3.0 million; amortization of note discounts, $0.5 million; and associated tax benefit for non-GAAP items ($0.2 million); totaling $3.3 million.

Use of Non-GAAP Financial Results

In addition to U.S. GAAP results, this press release also contains non-GAAP financial results. The Company’s non-GAAP results for both the September 2026 and June 2026 quarters exclude amortization related to intangible assets acquired through certain business combinations, the effects of elective deferred compensation-related assets and liabilities, amortization of note discounts, and the net income tax effect of non-GAAP items. The September 2026 quarter also excludes the net income tax effect of a change in tax law, and the June 2026 quarter excludes workforce optimization charges and the related income tax effect.

Management uses non-GAAP gross margin, operating expense, operating income, operating margin, net income, and net income per diluted share to evaluate the Company’s operating and financial results. The Company believes the presentation of non-GAAP results is useful to investors for analyzing business trends and comparing performance to prior periods, along with enhancing investors’ ability to view the Company’s results from management’s perspective. Tables presenting reconciliations of non-GAAP results to U.S. GAAP results are included at the end of this press release and on the Company’s website at https://investor.lamresearch.com .

Caution Regarding Forward-Looking Statements

Lam Research Corporation is a global supplier of innovative wafer fabrication equipment and services to the semiconductor industry. Lam's equipment and services allow customers to build smaller and better performing devices. In fact, today, nearly every advanced chip is built with Lam technology. We combine superior systems engineering, technology leadership, and a strong values-based culture, with an unwavering commitment to our customers. Lam Research (Nasdaq: LRCX) is a FORTUNE 500® company headquartered in Fremont, Calif., with operations around the globe. Learn more at www.lamresearch.com. (LRCX)

Condensed Consolidated Financial Tables Follow.

### LAM RESEARCH CORPORATION

CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (in thousands, except per share data and percentages)

(unaudited)

LAM RESEARCH CORPORATION CONDENSED CONSOLIDATED BALANCE SHEETS (in thousands)

LAM RESEARCH CORPORATION CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (in thousands, unaudited)

(1) Restricted cash is reported within Other assets in the Condensed Consolidated Balance Sheets.

Non-GAAP Financial Summary (in thousands, except percentages and per share data)

(unaudited)

Reconciliation of U.S. GAAP Net Income to Non-GAAP Net Income (in thousands, except per share data)

(unaudited)

U.S. GAAP net income $ 2,753,138 $ 2,277,282

Pre-tax non-GAAP items:

Amortization related to intangible assets acquired through certain business combinations - cost of goods sold 2,668 2,668

Elective deferred compensation ("EDC") related liability valuation increase - cost of goods sold 3,498 15,379

Workforce optimization charges - cost of goods sold — 549

Workforce optimization charges - research and development — 960

Amortization related to intangible assets acquired through certain business combinations - selling, general and administrative 348 348

EDC related liability valuation increase - selling, general and administrative 4,199 18,454

Amortization of note discounts - other income (expense), net 508 504

Income tax expense from a change in tax law 11,454 —

Non-GAAP net income per diluted share $ 2.20 $ 1.82

U.S. GAAP net income per diluted share $ 2.19 $ 1.81

U.S. GAAP and non-GAAP number of shares used for per diluted share calculation 1,255,768 1,256,032