Ownership Submission
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
OMB APPROVAL
OMB Number: 3235-0287
Expires: January 31, 2005
Estimated average burden hours per response... 0.5

(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)
08/29/2012
(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") 08/29/2012   M   1,998,547 A $ 11.57 56,566,492 I (1) (2) See footnotes (1) (2)

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB control number. SEC 1474 (9-02)

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
Warrants to buy Common Stock ("Warrants") $ 11.57 08/29/2012   M     3,742,687 (1) (2) 01/29/2009   (3) Common Stock 3,742,687 (1) (2) $ 0 (2) 0 (1) (2) I (1) (2) See Footnotes (1) (2)
Warrants $ 11.57 08/29/2012   M     119,735 (1) (2) 01/29/2009   (3) Common Stock 119,735 (1) (2) $ 0 (2) 0 (1) (2) I (1) (2) See footnotes (1) (2)

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.
C/O WARBURG PINCUS LLC
450 LEXINGTON AVENUE
NEW YORK, NY 10017
  X   X    
Warburg Pincus Private Equity X, L.P.
C/O WARBURG PINCUS & CO.
450 LEXINGTON AVENUE
NEW YORK, NY 10017
  X   X    
Warburg Pincus X Partners, L.P.
C/O WARBURG PINCUS & CO.
450 LEXINGTON AVENUE
NEW YORK, NY 10017
  X   X    
Warburg Pincus X, L.P.
C/O WARBURG PINCUS & CO.
450 LEXINGTON AVENUE
NEW YORK, NY 10017
  X   X    
Warburg Pincus X LLC
C/O WARBURG PINCUS & CO.
450 LEXINGTON AVENUE
NEW YORK, NY 10017
  X   X    
Warburg Pincus Partners LLC
C/O WARBURG PINCUS & CO.
450 LEXINGTON AVENUE
NEW YORK, NY 10017
  X   X    
WARBURG PINCUS LLC
450 LEXINGTON AVENUE
NEW YORK, NY 10017
    X    
KAYE CHARLES R
C/O WARBURG PINCUS & CO.
450 LEXINGTON AVENUE
NEW YORK, NY 10017
    X    
Landy Joseph P.
C/O WARBURG PINCUS & CO.
450 LEXINGTON AVENUE
NEW YORK, NY 10017
    X    

Signatures

 /s/ Scott A. Arenare, Partner   08/31/2012
**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.
(3) 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).
 
Remarks:
Exhibit List

Exhibit 99.1 - Explanation of Responses
Exhibit 99.2 - Joint Filer Information
Exhibit 99.3 - Joint Filers' Signatures

Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.

Potential persons who are to respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB number.