FORM 4 Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

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(Print or Type Responses)

1. Name and Address of Reporting Person * WARBURG PINCUS & CO.   2. Issuer Name and Ticker or Trading Symbol Nuance Communications, Inc. [NUAN] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) __X__ Director __X__ 10% Owner _____ Officer (give title below) _____ Other (specify below) (Last) (First) (Middle) 450 LEXINGTON AVENUE 3. Date of Earliest Transaction (Month/Day/Year) 03/14/2013 (Street) NEW YORK, NY 10017 4. If Amendment, Date Original Filed(Month/Day/Year) 6. Individual or Joint/Group Filing(Check Applicable Line) ___ Form filed by One Reporting Person _X_ Form filed by More than One Reporting Person (City) (State) (Zip) Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned

1.Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4) Code V Amount (A) or (D) Price Common stock, $0.001 par value (''Common Stock'') 03/14/2013   J(1)   9,945,723 (1) (2) D $ 0 (1) 46,620,769 (1) (2) I (1) (2) See footnotes (1) (2)

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
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Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)

1. Title of Derivative Security (Instr. 3)

2. Conversion or Exercise Price of Derivative Security

3. Transaction Date (Month/Day/Year)

3A. Deemed Execution Date, if any (Month/Day/Year)

4. Transaction Code (Instr. 8)

5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4, and 5)

6. Date Exercisable and Expiration Date (Month/Day/Year)

7. Title and Amount of Underlying Securities (Instr. 3 and 4)

8. Price of Derivative Security (Instr. 5)

9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)

10. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 4)

11. Nature of Indirect Beneficial Ownership (Instr. 4)

Code

V

(A)

(D)

Date Exercisable

Expiration Date

Title

Amount or Number of Shares

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
WARBURG PINCUS & CO. 450 LEXINGTON AVENUE NEW YORK, NY 10017	X	X
Warburg Pincus Private Equity VIII, L.P. 450 LEXINGTON AVENUE NEW YORK, NY 10017	X	X
Warburg Pincus Private Equity X, L.P. 450 LEXINGTON AVENUE NEW YORK, NY 10017	X	X
Warburg Pincus X Partners, L.P. 450 LEXINGTON AVENUE NEW YORK, NY 10017	X	X
Warburg Pincus X, L.P. 450 LEXINGTON AVENUE NEW YORK, NY 10017	X	X
Warburg Pincus X LLC 450 LEXINGTON AVENUE NEW YORK, NY 10017	X	X
Warburg Pincus Partners LLC 450 LEXINGTON AVENUE NEW YORK, NY 10017	X	X
WARBURG PINCUS LLC 450 LEXINGTON AVENUE NEW YORK, NY 10017		X
KAYE CHARLES R 450 LEXINGTON AVENUE NEW YORK, NY 10017		X
Landy Joseph P. 450 LEXINGTON AVENUE NEW YORK, NY 10017		X

Signatures

WARBURG PINCUS & CO. /s/ Scott A. Arenare Name: Scott A. Arenare Title: Attorney-in-Fact***		03/15/2013
**Signature of Reporting Person		Date

Explanation of Responses:

*	If the form is filed by more than one reporting person, see Instruction 4(b)(v).
**	Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
(1)	See Exhibit 99.1; Note 1.
(2)	See Exhibit 99.1; Note 2.
Remarks: Exhibit List Exhibit 99.1 - Explanation of Responses Exhibit 99.2 - Joint Filer Information Exhibit 99.3 - Joint Filers' Signatures ***  The Power of Attorney given by Warburg Pincus & Co. was previously filed with the U.S. Securities & Exchange Commission on January 15, 2013 as an exhibit to a statement on Schedule 13D/A filed by Warburg Pincus Private Equity X, L.P. with respect to Talon Therapeutics, Inc. and is hereby incorporated by reference.

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