Important Information About Non-GAAP References

PTC provides non-GAAP supplemental information to its financial results. Non-GAAP revenue excludes the effect of purchase accounting on the fair value of the acquired deferred maintenance revenue balance of CoCreate Software GmbH. Non-GAAP operating margin and EPS also exclude stock-based compensation expense, amortization of acquired intangible assets and acquired in-process research and development expenses, restructuring expenses, non-cash effects of liquidating subsidiaries and any one-time tax items, such as valuation allowance reversals. PTC provides this non-GAAP information to facilitate period-to-period comparisons of its operational performance by adjusting for episodic expenses. We believe that providing non-GAAP measures affords investors a view of our operating results that may be more easily compared to peer companies. PTC management also uses this and other non-GAAP financial information to evaluate, manage and plan our business because the information provides additional insight into ongoing financial performance. 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 alternative to GAAP information as the items excluded from the non-GAAP measures often have a material impact on PTC ’ s financial results. Therefore, management uses, and investors should use, non-GAAP measures in conjunction with our reported GAAP results. Please refer to the attached tables for a reconciliation between GAAP results and the non-GAAP supplemental information.