SEC Form 4

FORM 4		UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934 or Section 30(h) of the Investment Company Act of 1940	OMB APPROVAL OMB Number: 3235-0287 Estimated average burden hours per response: 0.5
	Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

1. Name and Address of Reporting Person* Warburg Pincus Private Equity X, L.P. (Last) (First) (Middle) C/O WARBURG PINCUS LLC 450 LEXINGTON AVENUE (Street) NEW YORK NY 10017 (City) (State) (Zip)	2. Issuer Name and Ticker or Trading Symbol NATIONAL PENN BANCSHARES INC [ NPBC ]	5. Relationship of Reporting Person(s) to Issuer (Check all applicable) X Director X 10% Owner Officer (give title below) Other (specify below)
	3. Date of Earliest Transaction (Month/Day/Year) 08/18/2011
	4. If Amendment, Date of 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

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, no par value	08/18/2011		P		250,000	A	$6.32(1)	25,054,789(2)(3)(4)(5)	D(2)(3)(4)(5)
Common Stock, no par value	08/19/2011		P		222,209	A	$6.29(6)	25,276,998(2)(3)(4)(5)	D(2)(3)(4)(5)

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 Securities Underlying Derivative Security (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: 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

1. Name and Address of Reporting Person* Warburg Pincus Private Equity X, L.P. (Last) (First) (Middle) C/O WARBURG PINCUS LLC 450 LEXINGTON AVENUE (Street) NEW YORK NY 10017 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer X Director X 10% Owner Officer (give title below) Other (specify below)

1. Name and Address of Reporting Person* WARBURG PINCUS X PARTNERS, L.P. (Last) (First) (Middle) 450 LEXINGTON AVENUE (Street) NEW YORK NY 10017 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer X Director X 10% Owner Officer (give title below) Other (specify below)

1. Name and Address of Reporting Person* Warburg Pincus X, L.P. (Last) (First) (Middle) C/O WARBURG PINCUS LLC 450 LEXINGTON AVENUE (Street) NEW YORK NY 10017 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer X Director X 10% Owner Officer (give title below) Other (specify below)

1. Name and Address of Reporting Person* Warburg Pincus X LLC (Last) (First) (Middle) C/O WARBURG PINCUS LLC 450 LEXINGTON AVENUE (Street) NEW YORK NY 10017 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer X Director X 10% Owner Officer (give title below) Other (specify below)

1. Name and Address of Reporting Person* Warburg Pincus Partners LLC (Last) (First) (Middle) 450 LEXINGTON AVENUE (Street) NEW YORK NY 10017 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer X Director X 10% Owner Officer (give title below) Other (specify below)

1. Name and Address of Reporting Person* WARBURG PINCUS & CO (Last) (First) (Middle) 450 LEXINGTON AVENUE (Street) NY NY 10017 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer X Director X 10% Owner Officer (give title below) Other (specify below)

1. Name and Address of Reporting Person* WARBURG PINCUS LLC (Last) (First) (Middle) 450 LEXINGTON AVENUE (Street) NEW YORK NY 10017 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer X Director X 10% Owner Officer (give title below) Other (specify below)

1. Name and Address of Reporting Person* KAYE CHARLES R (Last) (First) (Middle) C/O WARBURG PINCUS LLC 450 LEXINGTON AVE (Street) NEW YORK NY 10017 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer X Director X 10% Owner Officer (give title below) Other (specify below)

1. Name and Address of Reporting Person* LANDY JOSEPH (Last) (First) (Middle) C/O WARBURG PINCUS LLC 450 LEXINGTON AVE (Street) NEW YORK NY 10017 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer X Director X 10% Owner Officer (give title below) Other (specify below)

Explanation of Responses:

1. The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions in the open market at prices ranging from $6.22 to $6.53, inclusive. The Warburg Pincus Reporting Persons (as defined below) undertake to provide to any securityholders of National Penn Bancshares, Inc. (the "Issuer") or the staff of the U.S. Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the range set forth in this footnote (1).

2. As of August 22, 2011, Warburg Pincus Private Equity X, L.P., a Delaware limited partnership, together with Warburg Pincus X Partners, L.P., an affiliated Delaware limited partnership (together, "WP X") is the holder of 25,276,998 shares of common stock, no par value (the "Common Stock") of the Issuer. Warburg Pincus X, L.P., a Delaware limited partnership ("WP X LP"), is the general partner of WP X; Warburg Pincus X LLC, a Delaware limited liability company ("WP X LLC") is the general partner of WP X LP; Warburg Pincus Partners LLC, a New York limited liability company ("WP Partners") is the sole member of WP X LLC; Warburg Pincus & Co., a New York general partnership ("WP") is the managing member of WP Partners; Warburg Pincus LLC, a New York limited liability company ("WP LLC") manages WP X; (Continued in Footnote 3)

3. and each of Messrs. Charles R. Kaye and Joseph P. Landy is a Managing General Partner of WP and a Managing Member and Co-President of WP LLC who may be deemed to control WP X, WP X LP, WP X LLC, WP Partners, WP and WP LLC (Messrs. Charles R. Kaye and Joseph P. Landy, together with WP X, WP X LP, WP X LLC, WP Partners, WP and WP LLC, the "Warburg Pincus Reporting Persons"). By reason of the provisions of Rule 16a-1 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), each of WP X LP, WP X LLC, WP Partners, WP, WP LLC, and Messrs. Kaye and Landy may be deemed to be the beneficial owner of the shares of Common Stock held by WP X.

4. Information with respect to each of the Warburg Pincus Reporting Persons is given solely by such Warburg Pincus Reporting Persons, and no Warburg Pincus Reporting Person has responsibility for the accuracy or completeness of information supplied by another Warburg Pincus Reporting Person.

5. Pursuant to Rule 16a-1(a)(4) of the Exchange Act, each of the Warburg Pincus Reporting Persons, other than WP X, herein states that this Statement shall not be deemed an admission that he or it is the beneficial owner of any of the shares of Common Stock covered by this Statement. Each of WP X LP, WP X LLC, WP Partners, WP, WP LLC, and Messrs. Kaye and Landy disclaims beneficial ownership of the Common Stock, except to the extent of its or his pecuniary interest in such shares of Common Stock.

6. The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions in the open market at prices ranging from $6.13 to $6.48, inclusive. The Warburg Pincus Reporting Persons undertake to provide to any security holders of the Issuer or the staff of the U.S. Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the range set forth in this footnote (6).

Remarks:

Solely for purposes of Section 16 of the Exchange Act, WP X may be deemed a director-by-deputization by virtue of its contractual right to designate a representative to serve on the board of directors of the Issuer. Michael E. Martin became a director of the Issuer on February 11, 2011. Mr. Martin is a Partner of WP and a Member and Managing Director of WP LLC. See Signatures of Warburg Pincus Reporting Persons attached as Exhibit 99.1.

	/s/ Scott A. Arenare	08/22/2011
	** Signature of Reporting Person	Date
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