(4) Includes accounts payable, accrued expenses, and accrued compensation and benefits.

(5) Acquisitions of businesses:

a. The third quarter of 2009 includes $24 million for our acquisition of Relex, net of cash acquired.

b. The first quarter of 2009 includes $7 million for our acquisition of Synapsis and $1 million for a contingent purchase price earned during the quarter related to a prior acquisition.

c. The first quarter of 2008 includes $248 million for our acquisition of CoCreate and $14 million for two other acquisitions, net of cash acquired.

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Contact:

PTC
Kristian P. Talvitie, 781-370-6151
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