The earnings press release and accompanying prepared remarks will be accessible prior to the conference call and webcast on the Investor Relations section of the Company’s web site at www.ptc.com.

Important Information About Non-GAAP References

PTC provides non-GAAP supplemental information to its financial results. Non-GAAP revenue, operating expenses, margin and EPS exclude the effect of purchase accounting on the fair value of the acquired deferred maintenance balance of MKS Inc., stock-based compensation expense, amortization of acquired intangible assets, acquisition-related expenses, restructuring charges, certain foreign currency transaction losses, and the related tax effects of the preceding items and any one-time tax items. We use these non-GAAP measures, and we believe that they assist our investors, to make period-to-period comparisons of our operational performance because they provide a view of our operating results without items that are not, in our view, indicative of our core operating results. We believe that these non-GAAP measures help illustrate underlying trends in our business, and we use the measures to establish budgets and operational goals, communicated internally and externally, for managing our business and evaluating our performance. We believe that providing non-GAAP measures affords investors a view of our operating results that may be more easily compared to the results of peer companies. In addition, compensation of our executives is based in part on the performance of our business based on these non-GAAP measures. However, non-GAAP information should not be construed as an alternative to GAAP information as the items excluded from the non-GAAP measures often have a material impact on PTC’s financial results. Management uses, and investors should consider, non-GAAP measures in conjunction with our GAAP results.