AXCELIS TECHNOLOGIES INC

Results of Operations

The following table sets forth our results of operations as a percentage of total revenue:

Revenue

The following table sets forth our product and services revenue:

Product revenue, which includes systems sales, sales of spare parts, product upgrades and used systems, was $200.5 million, or 93.2% of revenue, during the three months ended June 30, 2026, compared with $183.4 million, or 94.3% of revenue, for the three months ended June 30, 2025. The $17.1 million increase in product revenue for the three-month period ended June 30, 2026, in comparison to the same period in 2025, was primarily driven by an increase in Aftermarket sales.

Deferred revenue includes payments received in advance of system sales as well as deferral of revenue from systems sales for installation and other future performance obligations. The total amount of deferred revenue at June 30, 2026 and December 31, 2025 was $118.5 million and $108.9 million, respectively.

Services revenue, which includes the labor component of maintenance and service contracts and fees for service hours provided by on-site service personnel, was $14.7 million, or 6.8% of revenue, for the three months ended June 30, 2026, compared with $11.1 million, or 5.7% of revenue, for the three months ended June 30, 2025. Although services revenue typically increases with the expansion of the installed base of systems, it can fluctuate from period to period based on capacity utilization at customers’ manufacturing facilities, which affects the need for equipment service.

Product revenue was $388.5 million, or 93.8% of revenue, during the six months ended June 30, 2026, compared with $366.2 million, or 94.6% of revenue, for the six months ended June 30, 2025. The $22.3 million increase in product revenue for the six-month period ended June 30, 2026, in comparison to the same period in 2025, was primarily driven by an increase in Aftermarket sales, partially offset by a customer settlement of $4.9 million.

Services revenue was $25.6 million, or 6.2% of revenue, for the six months ended June 30, 2026, compared with $20.9 million, or 5.4% of revenue, for the six months ended June 30, 2025.

Revenue Categories used by Management

In addition to the line item revenue categories discussed above, management also regularly disaggregates revenue in the following categories, which it finds relevant and useful:

(Aftermarket purchases reflect current fab utilization as opposed to Systems purchases which reflect capital investment decisions by our customers, which have differing economic drivers);

Aftermarket and Systems Revenue

Included in total revenue of $215.2 million during the three months ended June 30, 2026 is revenue from our Aftermarket business of $82.8 million, compared with $61.3 million of Aftermarket revenue for the three months ended June 30, 2025. Aftermarket revenue fluctuates from period to period primarily based on capacity utilization at customers’ manufacturing facilities, which affects the sale of spare parts and demand for equipment service. Aftermarket revenue can also fluctuate from period to period based on the demand for system upgrades or used equipment. The remaining $132.4 million of revenue for the three months ended June 30, 2026 was systems revenue, compared with $133.2 million of systems revenue for the three months ended June 30, 2025. Systems revenue fluctuates from period to period based on our customers’ capital spending.

Included in total revenue of $414.1 million during the six months ended June 30, 2026 is revenue from our Aftermarket business of $155.4 million, compared with $116.2 million of Aftermarket revenue for the six months ended June 30, 2025. The remaining $258.7 million of revenue for the six months ended June 30, 2026 was systems revenue, compared with $270.9 million of systems revenue for the six months ended June 30, 2025.

Gross Profit / Gross Margin

The following table sets forth our gross profit / gross margin:

Gross margin from product revenue was 46.6% for the three months ended June 30, 2026, compared to 47.9% for the three months ended June 30, 2025. The decrease in gross margin resulted from a less favorable mix of system shipments.

Gross margin from services revenue was (15.7)% for the three months ended June 30, 2026, compared to (5.4)% for the three months ended June 30, 2025. The decrease in gross margin is primarily attributable to changes in the mix of service contracts and fluctuations of service expenses. Occasionally, we experience negative gross margin on service revenue as contract costs can vary significantly from one period to another based on customer demand.

Gross margin from product revenue was 45.2% for the six months ended June 30, 2026, compared to 48.1% for the six months ended June 30, 2025. The decrease in gross margin primarily resulted from a less favorable mix of system shipments.

Gross margin from services revenue was (15.6)% for the six months ended June 30, 2026, compared to (0.7)% for the six months ended June 30, 2025. The decrease in gross margin is primarily attributable to changes in the mix of service contracts and fluctuations of service expenses.

Operating Expenses

The following table sets forth our operating expenses:

Our operating expenses consist primarily of personnel costs, including wages, commissions, incentive-based compensation, stock-based compensation and related benefits and taxes; project material costs related to the design and development of new products and enhancement of existing products; and professional fees, travel and depreciation expenses.

Personnel costs are our largest expense, representing $39.2 million, or 55.3%, of our total operating expenses for the three months ended June 30, 2026, compared to $35.9 million, or 61.5%, of our total operating expenses for the three months ended June 30, 2025. Personnel costs were $74.9 million, or 52.2%, of our total operating expenses for the six months ended June 30, 2026, compared to $71.3 million, or 60.4%, of our total operating expenses for the six months ended June 30, 2025. The higher personnel costs for the three months ended June 30, 2026 are primarily due to increases in salary, benefits, commissions, and stock-based compensation expenses. The higher personnel costs for the six months ended June 30, 2026 are primarily due to increases in salary, benefits, commissions, and stock-based compensation expenses, slightly offset by a decrease in separation program expenses.

Research and Development

Our ability to remain competitive depends largely on continuously developing innovative technology, with new and enhanced features and systems and introducing them at competitive prices on a timely basis. Accordingly, based on our strategic plan, we establish annual research and development budgets to fund programs that we expect will solve customers’ high value, high impact, ion implantation challenges.

Research and development expense was $29.0 million during the three months ended June 30, 2026, an increase of $1.9 million, or 7.1%, compared with $27.1 million during the three months ended June 30, 2025. The increase is primarily due to higher personnel costs and an increase in consulting expenses.

Research and development expense was $57.5 million during the six months ended June 30, 2026, an increase of $3.3 million, or 6.1%, compared with $54.2 million during the six months ended June 30, 2025. The increase is primarily due to higher personnel costs and an increase in consulting expenses.

Sales and Marketing

Our sales and marketing expenses result primarily from the sale of our equipment and services through our direct sales force.

Sales and marketing expense was $19.6 million during the three months ended June 30, 2026, an increase of $4.6 million, or 30.3%, compared with $15.0 million during the three months ended June 30, 2025. The increase is primarily due to higher personnel expenses and increases in freight expenses and evaluation tool costs.

Sales and marketing expense was $36.9 million during the six months ended June 30, 2026, an increase of $6.8 million, or 22.5%, compared with $30.1 million during the six months ended June 30, 2025. The increase is primarily due to higher personnel expenses and increases in freight expenses and evaluation tool costs.

General and Administrative

Our general and administrative expenses result primarily from the costs associated with our executive, finance, information technology, legal and human resource functions.

General and administrative expense was $22.4 million during the three months ended June 30, 2026, an increase of $6.1 million, or 37.2%, compared with $16.3 million during the three months ended June 30, 2025. The increase is due to an increase in professional fees related to the Merger.

General and administrative expense was $49.1 million during the six months ended June 30, 2026, an increase of $15.5 million, or 45.9%, compared with $33.7 million during the six months ended June 30, 2025. The increase is due to an increase in professional fees related to the Merger.

Other Income (Expense)

Other income (expense) consists of interest earned and accretion on our invested cash balances, interest expense relating to the finance lease obligation we incurred in connection with the 2015 sale of our headquarters facility and other financing obligations as well as foreign exchange gains and losses attributable to both fluctuations of the U.S. dollar against local currencies of the countries in which we operate and forward currency exchange contracts.

Other income was $5.1 million for the three months ended June 30, 2026, compared with other income of $6.0 million for the three months ended June 30, 2025. The $1.0 million decrease in other income (expense) compared to the same prior year period was primarily due to a decrease in interest income of $0.9 million, partially offset by a slight increase in net foreign exchange gains of $0.2 million. Net foreign exchange gains for the three months ended June 30, 2026 includes $1.5 million of gains related to forward currency exchange contracts and foreign exchange gains of $0.2 million. Net foreign exchange gains for the three months ended June 30, 2025 includes foreign exchange gains of $7.3 million, partially offset by foreign exchange losses from forward currency exchange contracts of $5.8 million.

Other income was $7.7 million for the six months ended June 30, 2026, compared with other income of $10.0 million for the six months ended June 30, 2025. The $2.2 million decrease in other income (expense) compared to the same prior year period was primarily due to a decrease in interest income of $2.0 million, partially offset by a slight increase in net foreign exchange gains of $0.1 million. Net foreign exchange gains for the six months ended June 30, 2026 includes $3.2 million of gains related to forward currency exchange contracts, partially offset by foreign exchange losses of

$2.0 million. Net foreign exchange gains for the six months ended June 30, 2025 includes foreign exchange gains of $8.1 million, partially offset by foreign exchange losses related to forward currency exchange contracts of $7.0 million.

Income Tax Provision

Income tax expense was $2.1 million for the three months ended June 30, 2026, compared to $3.6 million for the three months ended June 30, 2025. The $1.6 million decrease was primarily due to the decrease in pre-tax book income and an increase in stock-based compensation deduction. The reported effective tax rate for the three months ended June 30, 2026 was 8.1% compared to 10.3% for the three months ended June 30, 2025. The effective tax rate for the six months ended June 30, 2026 was less than the U.S. statutory rate of 21%, primarily attributable to the Foreign Derived Intangible Income deduction and Federal research and development tax credits.