X0306 4 2012-08-29 0 0001002517 Nuance Communications, Inc. NUAN 0000929408 WARBURG PINCUS & CO. 450 LEXINGTON AVENUE NEW YORK NY 10017 1 0 1 0 0001157334 Warburg Pincus Private Equity VIII, L.P. C/O WARBURG PINCUS LLC 450 LEXINGTON AVENUE NEW YORK NY 10017 1 0 1 0 0001414565 Warburg Pincus Private Equity X, L.P. C/O WARBURG PINCUS & CO. 450 LEXINGTON AVENUE NEW YORK NY 10017 1 0 1 0 0001451560 Warburg Pincus X Partners, L.P. C/O WARBURG PINCUS & CO. 450 LEXINGTON AVENUE NEW YORK NY 10017 1 0 1 0 0001414561 Warburg Pincus X, L.P. C/O WARBURG PINCUS & CO. 450 LEXINGTON AVENUE NEW YORK NY 10017 1 0 1 0 0001414564 Warburg Pincus X LLC C/O WARBURG PINCUS & CO. 450 LEXINGTON AVENUE NEW YORK NY 10017 1 0 1 0 0001322709 Warburg Pincus Partners LLC C/O WARBURG PINCUS & CO. 450 LEXINGTON AVENUE NEW YORK NY 10017 1 0 1 0 0001162870 WARBURG PINCUS LLC 450 LEXINGTON AVENUE NEW YORK NY 10017 0 0 1 0 0001239318 KAYE CHARLES R C/O WARBURG PINCUS & CO. 450 LEXINGTON AVENUE NEW YORK NY 10017 0 0 1 0 0001220638 Landy Joseph P. C/O WARBURG PINCUS & CO. 450 LEXINGTON AVENUE NEW YORK NY 10017 0 0 1 0 Common Stock, $0.001 par value ("Common Stock") 2012-08-29 4 M 0 1998547 11.57 A 56566492 I See footnotes Warrants to buy Common Stock ("Warrants") 11.57 2012-08-29 4 M 0 3742687 0.00 D 2009-01-29 Common Stock 3742687 0.00 I See Footnotes Warrants 11.57 2012-08-29 4 M 0 119735 0.00 D 2009-01-29 Common Stock 119735 0.00 I See footnotes See Exhibit 99.1; Note 1. See Exhibit 99.1; Note 2. The expiration date of the Warrants is the earlier of January 29, 2013 and the closing of a Change of Control of the Issuer (as such term is defined in the Warrants). Exhibit List Exhibit 99.1 - Explanation of Responses Exhibit 99.2 - Joint Filer Information Exhibit 99.3 - Joint Filers' Signatures /s/ Scott A. Arenare, Partner 2012-08-31