FORMFACTOR INC

Note 1 —Basis of Presentation and Significant Accounting Policies

Basis of Presentation

The accompanying condensed consolidated financial information of FormFactor, Inc. is unaudited and has been prepared in accordance with accounting principles generally accepted in the United States of America (“GAAP”) and pursuant to the rules and regulations of the Securities and Exchange Commission (“SEC”). However, such information reflects all adjustments, consisting only of normal recurring adjustments, which are, in the opinion of management, necessary for a fair presentation of the financial position, results of operations and cash flows for the interim periods. The condensed consolidated financial statements included herein should be read in conjunction with the consolidated financial statements and the notes thereto included in our 2025 Annual Report on Form 10-K filed with the SEC on February 20, 2026. The results of operations for the interim periods presented are not necessarily indicative of the results to be expected for the full year.

Fiscal Year

We operate on a 52/53 week fiscal year, whereby the fiscal year ends on the last Saturday of December. Fiscal 2026 and 2025 each contain 52 weeks and the nine months ended September 26, 2026 and September 27, 2025 each contained 39 weeks. Fiscal 2026 will end on December 26, 2026.

Significant Accounting Policies

Our significant accounting policies have not changed during the nine months ended September 26, 2026 from those disclosed in our Annual Report on Form 10-K for the year ended December 27, 2025.

New Accounting Pronouncements

ASU 2024-03

In November 2024, the Financial Accounting Standards Board (the “FASB”) issued Accounting Standards Update (“ASU”) No. 2024-03, “Income Statement - Reporting Comprehensive Income - Expense Disaggregation Disclosures (Subtopic 220-40): Disaggregation of Income Statement Expenses.” This ASU requires an entity to disclose, in tabular format in the notes to the financial statements, specific information about certain costs and expenses. Although the ASU does not change the expense captions an entity presents on the face of the income statement, it requires disaggregation of certain expense captions into specified categories. The amendments in the ASU are effective for annual reporting periods beginning after December 15, 2026 and interim reporting periods beginning after December 15, 2027, with early adoption permitted. An entity may apply the amendments prospectively for reporting periods after the effective date or retrospectively to any or all prior periods presented in the financial statements. This ASU will impact only our disclosures and not our financial condition and results of operations. We are currently evaluating the effect the adoption of this ASU may have on our disclosures.

Reclassifications

Certain immaterial reclassifications were made to prior-year amounts to conform to the current-year presentation. These reclassifications included presenting accrued restructuring charges separately from other accrued liabilities in Note 6, Accrued Liabilities. These reclassifications had no impact on previously reported results of operations, financial position, or cash flows.

Note 2 —Concentration of Credit and Other Risks

Each of the following customers accounted for 10% or more of our revenues for the periods indicated:

• Less than 10% of revenues.

At September 26, 2026, three customers accounted for 22.0%,15.0%, and 13.7% of gross accounts receivable, compared with two customers that accounted for 15.8% and 10.8% at December 27, 2025.

Note 3 —Inventories, net

Inventories are stated at the lower of cost (principally standard cost, which approximates actual cost on a first in, first out basis) or net realizable value.

Inventories, net, consisted of the following (in thousands):

Note 4 —Acquisition

On December 15, 2025, we acquired 100% of the shares of Keystone Photonics for total consideration of $20.6 million, net of cash acquired of $1.7 million. Keystone Photonics provides optical probing technology used in the testing of silicon photonics (“SiPh”), co‑packaged optics (“CPO”), and near-packaged optics (“NPO”) devices. The acquisition expands the Company’s testing capabilities in these areas and supports customers as SiPh, CPO, and NPO technologies transition from development into high‑volume manufacturing, including applications related to artificial intelligence data-center infrastructure.

The acquisition was accounted for under the acquisition method of accounting, which requires that assets acquired and liabilities assumed be recognized on the consolidated balance sheets at their fair values as of the acquisition date. The purchase price was initially allocated to the tangible and identifiable intangible assets acquired and liabilities assumed based on management's estimates of their fair values as of the acquisition date, including goodwill representing the excess of consideration transferred over the fair value of identifiable net assets acquired. During the measurement period, the Company recorded adjustments to the purchase price allocation as additional information became available and certain valuation analyses were finalized. See Note 5, Goodwill and Intangible Assets, for information regarding changes to identifiable intangible assets and goodwill resulting from these adjustments. No portion of the goodwill is expected to be deductible for tax purposes.

The purchase price allocation was finalized during the second quarter of fiscal 2026. The table below summarizes the assets acquired, including goodwill and intangibles, and liabilities assumed as of December 15, 2025 (in thousands):

The intangible assets as of the acquisition date included (in thousands, except years):

Note 5 —Goodwill and Intangible Assets

Goodwill by reportable segment was as follows (in thousands):

We havenot recorded goodwill impairments for the nine months ended September 26, 2026.

Intangible assets were as follows (in thousands):

Amortization expense was included in our Condensed Consolidated Statements of Income as follows (in thousands):

The estimated future amortization of definite-lived intangible assets is as follows (in thousands):

Note 6 —Accrued Liabilities

Accrued liabilities consisted of the following (in thousands):

Note 7 —Restructuring Charges

On January 5, 2026, we adopted restructuring plans (the “2026 Restructuring Plans”) that are intended to better align our cost structure and support gross margin improvement to the Company’s target financial model, while also aligning manufacturing capabilities with current and anticipated business needs and the Company's strategic priorities. As part of this restructuring plan, the Company is consolidating the manufacturing facilities located in Carlsbad, California and Baldwin Park, California, to other manufacturing facilities.

The restructuring plans are expected to result in the Company recording restructuring charges in the aggregate amount of approximately $32.0 million to $40.0 million, estimated to be comprised primarily of $16.0 million to $18.5 million of costs related to the impairment and accelerated depreciation of property and equipment, $10.0 million to $12.5 million of costs relating to employee severance and benefits, $1.0 million to $2.0 million of impairment and accelerated amortization of right-of-use assets, and $5.0 million to $7.0 million of other costs. These restructuring charges relate primarily to the Company’s Probe Cards segment, and the Company expects the majority of charges to be incurred in fiscal 2026.

Total restructuring charges included in our Condensed Consolidated Statements of Income for the three and nine months ended September 26, 2026 were as follows (in thousands):

Changes to the restructuring accrual in the nine months ended September 26, 2026 were as follows (in thousands):

Note 8 —Debt

Revolving Credit Agreement

On July 29, 2025, we entered into a Revolving Credit Agreement (the “Credit Agreement”) with Wells Fargo Bank, National Association, as Administrative Agent, and the lenders party thereto, providing us with a $150 million revolving credit facility (the “Facility”). The Facility has a maturity date of July 29, 2030. The Facility may be used for working capital and other general corporate purposes, subject to the terms and conditions set forth in the Credit Agreement. No amounts were outstanding under the Facility as of September 26, 2026.

Borrowings under the Facility will bear interest at a fluctuating rate per annum equal to, at our option, (i) the forward-looking secured overnight financing rate (“SOFR”) term, (ii) a base rate set forth in the Credit Agreement, or (iii) a combination thereof, plus, in each case, an applicable margin calculated based on our leverage ratio. Voluntary prepayments are permissible without penalty, subject to certain conditions pertaining to minimum notice and minimum prepayment and reduction amounts as described in the Credit Agreement.

The Facility also bears a quarterly commitment fee ranging from 0.15% to 0.25% on the daily amount by which the commitments under the Facility exceed the outstanding amount. The commitment fee as of September 26, 2026 was 0.15%.

The Credit Agreement contains customary representations and warranties, and affirmative and negative covenants and events of default, including limitations on subsidiary indebtedness and liens, and the requirement to maintain specified financial ratios including the requirement to maintain a consolidated total net leverage ratio not exceeding 3.50 to 1.00 as of the last day of each fiscal quarter with an increase to 4.00 to 1.00 for four quarters following a permitted acquisition.

Building Term Loan and Interest Rate Swap

On June 22, 2020, we entered into an $18.0 million 15-year credit facility loan agreement (the “Building Term Loan”). The proceeds of the Building Term Loan were used to purchase a building adjacent to our leased facilities in Livermore, California. On May 19, 2023, we amended the Building Term Loan, replacing the benchmark reference rate London Interbank Offered Rate (“LIBOR”) with the term SOFR, with no change to the amount or timing of contractual cash flows.

The Building Term Loan bears interest at a rate equal to the applicable SOFR rate plus 1.86% per annum. Interest payments are payable in monthly installments over afifteen-year period. The interest rate at September 26, 2026, before consideration of interest rate swap discussed in the next paragraph, was 5.55%. As of September 26, 2026, the balance outstanding pursuant to the Building Term Loan was $11.4 million.

On March 17, 2020, we entered into an interest rate swap agreement to hedge the interest payment on the Building Term Loan for the notional amount of $18.0 million, and an amortization period that matches the debt. As future levels of LIBOR over the life of the loan were uncertain, we entered into this interest-rate swap agreement to hedge the exposure in interest rate risks associated with movement in LIBOR rates. This agreement was amended on May 19, 2023 to replace the benchmark reference rate LIBOR with SOFR to match the Building Term Loan agreement (as amended). After the amendment, the interest rate swap continues to convert our floating-rate interest into a fixed-rate at 2.75%. As of September 26, 2026, the notional amount of the loan that is subject to this interest rate swap is $11.4 million.

Note 9 —Fair Value and Derivative Instruments

Whenever possible, the fair values of our financial assets and liabilities are determined using quoted market prices of identical securities or quoted market prices of similar securities from active markets. The three levels of inputs that may be used to measure fair value are as follows:

•Level 1 valuations are obtained from real-time quotes for transactions in active exchange markets involving identical securities;

•Level 2 valuations utilize significant observable inputs, such as quoted prices for similar assets or liabilities, quoted prices near the reporting date in markets that are less active, or other inputs that are observable or can be corroborated by observable market data for substantially the full term of the assets or liabilities; and

•Level 3 valuations utilize unobservable inputs to the valuation methodology and include our own data about assumptions market participants would use in pricing the asset or liability based on the best information available under the circumstances.

We did not have any transfers of assets or liabilities measured at fair value on a recurring basis to or from Level 1, Level 2 or Level 3 during the nine months ended September 26, 2026 or the year ended December 27, 2025.

The carrying values of Cash, Accounts receivable, net, Restricted cash, Prepaid expenses and other current assets, Accounts payable, and Accrued liabilities approximate fair value due to their short maturities. The carrying value of debt approximates fair value due to its variable interest rate.

No changes were made to our valuation techniques during the first nine months of fiscal 2026.

Assets and Liabilities Measured at Fair Value on a Recurring Basis

Assets and liabilities measured at fair value on a recurring basis were as follows (in thousands):

Cash Equivalents

The fair value of our cash equivalents is determined based on quoted market prices for similar or identical securities.

Marketable Securities

We classify our marketable securities as available-for-sale and value them utilizing a market approach. Our investments are priced by pricing vendors who provide observable inputs for their pricing without applying significant judgment. Broker pricing is used mainly when a quoted price is not available, the investment is not priced by our pricing vendors or when a broker price is more reflective of fair value. Our broker-priced investments are categorized as Level 2 investments because fair value is based on similar assets without applying significant judgments. In addition, all investments have a sufficient trading volume to demonstrate that the fair value is appropriate.

Unrealized gains and losses were immaterial and were recorded as a component of Accumulated other comprehensive loss in our Condensed Consolidated Balance Sheets. We did not have any other-than-temporary unrealized gains or losses at either period end included in these financial statements.

Interest Rate Swap

The fair value of our interest rate swap contract is determined at the end of each reporting period based on valuation models that use interest rate yield curves as inputs. For accounting purposes, our interest rate swap contract qualifies for, and is designated as, a cash flow hedge. The hedged risk is the interest rate exposure to changes in interest payments attributable to changes in our variable-rate interest over the interest rate swap term. The changes in cash flows of the interest rate swap are expected to exactly offset changes in cash flows of the variable-rate debt. Cash settlements, in the form of cash payments or cash receipts, are recognized as a component of interest expense. The cash flows associated with the interest rate swaps are reported in Net cash provided by operating activities in our Condensed Consolidated Statements of Cash Flows and the fair value of the interest rate swap contracts are recorded within Prepaid expenses and other current assets and Other assets in our Condensed Consolidated Balance Sheets.

Foreign Exchange Derivative Contracts

We operate and sell our products in various global markets. As a result, we are exposed to changes in foreign currency exchange rates. We utilize foreign currency forward contracts to hedge against future movements in foreign exchange rates that affect certain existing foreign currency denominated assets and liabilities and forecasted foreign currency revenue and expense transactions. Under this program, our strategy is to have increases or decreases in our foreign currency exposures mitigated by gains or losses on the foreign currency forward contracts in order to mitigate the risks and volatility associated with foreign currency transaction gains or losses.

We do not use derivative financial instruments for speculative or trading purposes. For accounting purposes, certain of our foreign currency forward contracts are not designated as hedging instruments and, accordingly, we record the fair value of these contracts as of the end of our reporting period in our Condensed Consolidated Balance Sheets with changes in fair value recorded within Other income (expense), net in our Condensed Consolidated Statement of Income for both realized and unrealized gains and losses. Certain of our foreign currency forward contracts are designated as cash flow hedges, and, accordingly, we record the fair value of these contracts as of the end of our reporting period in our Condensed Consolidated Balance Sheets with changes in fair value recorded as a component of Accumulated other comprehensive loss and reclassified into earnings in the same period in which the hedged transaction affects earnings, and in the same line item on the Condensed Consolidated Statements of Income as the impact of the hedge transaction.

The fair value of our foreign exchange derivative contracts was determined based on current foreign currency exchange rates and forward points. All of our foreign exchange derivative contracts outstanding at September 26, 2026 will mature by the second quarter of fiscal 2027.

The following table provides information about our foreign currency forward contracts outstanding as of September 26, 2026 (in thousands):

Our foreign currency contracts are classified within Level 2 of the fair value hierarchy as they are valued using pricing models that utilize observable market inputs.

Assets and Liabilities Measured at Fair Value on a Non-Recurring Basis

We measure and report our non-financial assets such as Property, plant and equipment, Equity investment, Goodwill and Intangible assets at fair value on a non-recurring basis if we determine these assets to be impaired or in the period when we make a business acquisition. Other than as discussed in Note 4, Acquisition, there wereno assets or liabilities measured at fair value on a nonrecurring basis during the three and nine months ended September 26, 2026 or September 27, 2025.

Note 10 —Warranty

We offer warranties on certain products and record a liability for the estimated future costs associated with warranty claims at the time revenue is recognized. The warranty liability is based upon historical experience and our estimate of the level of future costs. While we engage in product quality programs and processes, our warranty obligation is affected by product failure rates, material usage and service delivery costs. We regularly monitor product returns for warranty and maintain a reserve for the related expenses based upon our historical experience and any specifically identified failures. As we sell new products to our customers, we must exercise considerable judgment in estimating the expected failure rates. This estimating process is based on historical experience of similar products, as well as various other assumptions that we believe to be reasonable under the circumstances. We provide for the estimated cost of product warranties at the time revenue is recognized as a component of Cost of revenues in our Condensed Consolidated Statement of Income.

Changes in our warranty liability were as follows (in thousands):

Note 11 —Property, Plant and Equipment, net

Property, plant and equipment, net consisted of the following (in thousands):

We incurred non-cash asset impairment and depreciation charges of $0.4 million and $16.6 million during the three and nine months ended September 26, 2026, respectively, as a direct result of the 2026 Restructuring Plans (see Note 7, Restructuring Charges).

Note 12 —Equity Investment

On February 21, 2025, Frontier Investments Co., Ltd (“HoldCo”), a joint holding company in which we hold a 20% share of the equity and an affiliate of MBK Partners holds an 80% share of the equity, through HoldCo’s wholly-owned subsidiary, FM Holdings Co., Ltd., acquired 100% of the shares of FICT Limited (“FICT”) from Advantage Partners Inc. Our initial $67.2 million equity investment comprised of the funding of our share of the purchase price of $59.6 million, subject to changes in foreign currency fluctuations, and acquisition costs of $7.5 million.

During the three and nine months ended September 26, 2026, we recorded income of $2.1 million and $5.9 million, respectively, from our equity share of the HoldCo using lag reporting. As of September 26, 2026, the carrying value of our investment was $70.5 million.

We engage in transactions with FICT, a related party and a supplier, in the normal course of business. Total related party purchases of inventory from FICT during the three and nine months ended September 26, 2026 was $4.1 million and $12.3 million, respectively.

Note 13 —Stockholders’ Equity and Stock-Based Compensation

Common Stock Repurchase Programs

On October 30, 2023, our Board of Directors authorized atwo-year program to repurchase up to $75.0 million of outstanding common stock, with the primary purpose of offsetting potential dilution from issuance of common stock under our stock-based compensation programs. On March 29, 2025, our Board of Directors approved an increase to the repurchase program, authorizing the repurchase of an additional $1.6 million in shares of common stock. During the first fiscal quarter of 2025, we repurchased and retired 665,000 shares of common stock for $22.1 million, utilizing the remaining shares available for repurchase under the program.

On April 24, 2025, our Board of Directors authorized a newtwo-year program to repurchase up to $75.0 million of outstanding common stock to offset potential dilution from issuance of common stock under our stock-based compensation programs. This share repurchase program will expire on April 24, 2027. During fiscal 2025, we repurchased and retired 135,000 shares of common stock for $4.1 million. During the nine months ended September 26, 2026, we did not repurchase shares of common stock under this plan, and as of September 26, 2026, $70.9 million remained available for future repurchases.

Our policy related to repurchases of our common stock is to charge the excess of cost over par value to additional paid-in capital once the shares are retired. Share repurchases are subject to an excise tax enabled by the Inflation Reduction Act that is generally 1% of the fair market value of the shares repurchased at the time of the repurchase, net of the fair market value of certain new stock issuances during the same taxable year. Certain exceptions apply to the excise tax. The excise tax incurred, if applicable, is included in the cost of shares repurchased in the Condensed Consolidated Statement of Stockholders Equity. All repurchases were made in compliance with Rule 10b-18 under the Securities Exchange Act of 1934, as amended.

Restricted Stock Units

Restricted stock unit (“RSU”) activity under our equity incentive plan was as follows:

Performance Restricted Stock Units

We may grant Performance RSUs (“PRSUs”) to certain executives, which vest based upon us achieving certain market performance criteria.

On August 6, 2026, we granted 65,616 PRSUs to certain senior executives for a total grant date fair value of $11.3 million which will be recognized ratably over the requisite service period. The performance criteria are based on Total Shareholder Returns (“TSR”) for the period of July 1, 2026 - June 30, 2029, relative to the TSR of the companies identified as being part of the S&P Semiconductors Select Industry Index (FormFactor peer companies) as of the grant date.

Of the 172,680 PRSUs granted in 2023,58,152 shares were forfeited during the requisite service period, resulting in 114,528 shares that were subject to the achievement of certain TSR performance criteria, assuming 100% achievement of such criteria. We achieved 200% TSR performance, which resulted in a total of 229,056 shares vested and issued in fiscal 2026 related to the fiscal 2023 PRSU grant.

PRSUs are included as part of the RSU activity above.

Employee Stock Purchase Plan

Information related to activity under our Employee Stock Purchase Plan (“ESPP”) was as follows:

Stock-Based Compensation

Stock-based compensation was included in our Condensed Consolidated Statements of Income as follows (in thousands):

Unrecognized Compensation Costs

At September 26, 2026, the unrecognized stock-based compensation was as follows (dollars in thousands):

Note 14 —Net Income per Share

The following table reconciles the shares used in calculating basic net income per share and diluted net income per share (in thousands):

Note 15 —Commitments and Contingencies

Legal Matters

From time to time, we are subject to legal proceedings and claims in the ordinary course of business, the outcomes of which cannot be estimated with certainty. Our ability to estimate the outcomes may change in the near term and the effect of any such change could have a material adverse effect on our financial position, results of operations or cash flows.

Note 16 —Leases

We lease real estate space under non-cancelable operating lease agreements for commercial and industrial space, as well as for a portion of our corporate headquarters located in Livermore, California. Our leases have remaining terms ofone toeight years, and some leases include options to extend up to 20 years. We did not include any of our renewal options in our lease terms for calculating our lease liability as the renewal options allow us to maintain operational flexibility and we are not reasonably certain we will exercise these options at this time. The weighted-average remaining lease term for our operating leases wasthree years as of September 26, 2026 and the weighted-average discount rate was 5.3%.

The components of lease expense were as follows (in thousands):

Future minimum payments under our non-cancelable operating leases were as follows as of September 26, 2026 (in thousands):

Note 17 —Revenue

Transaction price allocated to the remaining performance obligations: On September 26, 2026, we had $13.3 million of remaining performance obligations, which were comprised of deferred service contracts, extended warranty contracts, and contracts with overtime revenue recognition that are not yet delivered. We expect to recognize approximately 37.4% of our remaining performance obligations as revenue in the remainder of fiscal 2026, approximately 57.6% in fiscal 2027, and approximately 5.0% in fiscal 2028 and thereafter. The foregoing excludes the value of other remaining performance obligations as they have original durations of one year or less, and also excludes information about variable consideration allocated entirely to a wholly unsatisfied performance obligation.

Contract balances: The timing of revenue recognition may differ from the timing of invoicing to customers. Accounts receivable is recorded at the invoiced amount, net of an allowance for credit losses. A receivable is recognized in the period we deliver goods or provide services or when our right to consideration is unconditional. A contract asset is recorded when we have performed under the contract but our right to consideration is conditional on something other than the passage of time. Contract assets as of September 26, 2026 and December 27, 2025 were $3.2 million and $2.3 million, respectively, and are reported on the Condensed Consolidated Balance Sheets as a component of Prepaid expenses and other current assets.

Contract liabilities include payments received and payments due in advance of performance under a contract and are satisfied as the associated revenue is recognized. Contract liabilities are reported on the Condensed Consolidated Balance Sheets at the end of each reporting period as a component of Deferred revenue and Other liabilities. Contract liabilities as of September 26, 2026 and December 27, 2025 were $37.3 million and $21.4 million, respectively. During the nine months ended September 26, 2026, we recognized $15.6 million of revenue that was included in contract liabilities as of December 27, 2025.

Costs to obtain a contract: We generally expense sales commissions when incurred as a component of Selling, general and administrative expense, as the amortization period is typically less than one year.

Revenue by category: Refer to Note 18, Operating Segments and Enterprise-Wide Information, for further details.

Note 18 —Operating Segments and Enterprise-Wide Information

We operate intwo reportable segments consisting of the Probe Cards segment and the Systems segment.

Our chief operating decision maker (“CODM”) is our President and Chief Executive Officer, who assesses the reportable segments' performance by using each reportable segment's net contribution to make decisions about allocating resources and assessing performance for the entire company. The CODM uses net contribution for each reportable segment predominantly in the annual budget and forecasting process, as well as consideration of budget-to-actual variances on a quarterly basis when making decisions for assessment of our performance and results of operations. Certain components of net contribution are utilized to determine executive compensation along with other measures.

The following table provides net contribution by reportable segment and includes a reconciliation to net income before income taxes (dollars in thousands):

Corporate and Other includes unallocated expenses relating to restructuring charges, amortization of stock-based compensation expense, intangible assets, acquisition-related costs, including charges related to fixed assets stepped up to fair value, and other costs, which are not used in evaluating the results of, or in allocating resources to, our reportable segments. Acquisition-related costs include transaction costs and any costs directly related to the acquisition and integration of acquired businesses.

Net contribution represents Operating income excluding general and administrative expenses and factory start-up costs, which are not used in evaluating the results of, or in allocating resources to, our reportable segments.

Certain revenue category information by reportable segment was as follows (in thousands):

Note 19 —Subsequent Events

On October 6, 2026, we entered into a Securities Purchase Agreement with Teradyne, Inc., a Massachusetts corporation, to issue and sell an aggregate of 2,234,887 shares of our common stock for aggregate cash consideration of approximately $300.0 million in a private placement transaction. The transaction is expected to close in the fourth quarter of fiscal 2026, subject to the satisfaction of customary closing conditions.