Company delivers second consecutive quarter of positive cash flow

LIVERMORE, Calif. — October 24, 2013 — FormFactor, Inc. (Nasdaq: FORM) today announced its financial results for the third quarter of fiscal 2013 that ended on September 28, 2013. Quarterly revenues were $67.6 million, up 7.8% from $62.7 million in the second quarter of fiscal 2013, and up 63.9% from $41.3 million in the third quarter of fiscal 2012.

On a GAAP basis, net loss for the third quarter of fiscal 2013 was $10.7 million or $(0.20) per fully-diluted share, compared to a net loss for the second quarter of fiscal 2013 of $8.4 million or $(0.16) per fully-diluted share, and a net loss for the third quarter of fiscal 2012 of $14.5 million or $(0.29) per fully-diluted share.

On a Non-GAAP basis, net loss for the third quarter of fiscal 2013 was $3.5 million, or $(0.06) per fully-diluted share, compared to a net loss for the second quarter of fiscal 2013 of $0.3 million or $(0.01) per fully-diluted share, and a net loss for the third quarter of fiscal 2012 of $7.7 million or $(0.15) per fully-diluted share.

Although third quarter revenue was within the anticipated range, Non-GAAP gross profit at 24% of sales was significantly below the anticipated range, due to a combination of factors including lower than forecasted manufacturing utilization during September due to a significant drop in demand, lower margins on a specific high-volume DRAM design, increased warranty and service expenses caused by execution challenges at a specific customer and increased excess inventory charges.

For the third quarter, the difference between GAAP gross profit of $12.5 million, 19% of sales, and Non-GAAP gross profit of $16.3 million, 24% of sales, is that Non-GAAP gross profit excludes $0.6 million of stock-based compensation expense and $3.2 million of intangible asset amortization expense.

A reconciliation of GAAP to non-GAAP net loss and net loss per share is provided in the schedules included below.

Cash generation for the third quarter of fiscal 2013 was $1.8 million, compared to cash generation of $1.0 million for the second quarter of fiscal 2013 and cash usage of $1.6 million for the third quarter of fiscal 2012.

“We are currently addressing our Q3 operational execution challenges,” said Tom St. Dennis, CEO and Executive Chairman of FormFactor. “Despite our financial performance in Q3, the company made progress in products addressing all markets and delivered positive cash flow for the second consecutive quarter.”

The company has posted its revenue breakdown by region and market segment on the Investors section of its website at www.formfactor.com. FormFactor will conduct a conference call at 5:30 a.m. PDT, or 8:30 a.m. EDT, today.

The public is invited to listen to a live webcast of FormFactor’s conference call on the Investors section of the company’s web site at www.formfactor.com. A telephone replay of the conference call will be available approximately two hours after the conclusion of the call. The telephone replay will be available through October 26, 2013, 9:00 p.m. Pacific Daylight Time, and can be accessed by dialing (855) 859-2056 (domestic) or (404) 537-3406 (international) and entering confirmation code 72494882. Additionally, the replay will be available on the Investors section of our website, www.formfactor.com.

Non-GAAP Financial Measures:

This press release highlights the company’s financial results on both a GAAP and a non-GAAP basis. The GAAP results include certain charges that are excluded from non-GAAP results. By publishing the non-GAAP measures, management

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intends to provide investors with additional information to further analyze the company’s performance, core results and underlying trends. FormFactor’s management evaluates results and makes operating decisions using both GAAP and non- GAAP measures included in this press release. Non-GAAP results are not prepared in accordance with GAAP, and non-GAAP information should be considered a supplement to, and not a substitute for, financial statements prepared in accordance with GAAP. Investors and potential investors are encouraged to review the reconciliation of non-GAAP financial measures to their most directly comparable GAAP measures attached to this press release.