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* PROMETHEUS SENIOR QUARTERS LLC (Last) (First) (Middle) 30 ROCKEFELLER PLAZA (Street) NEW YORK NY 10020 (City) (State) (Zip)	2. Issuer Name and Ticker or Trading Symbol VENTAS INC [ VTR ]	5. Relationship of Reporting Person(s) to Issuer (Check all applicable) Director X 10% Owner Officer (give title below) Other (specify below)
	3. Date of Earliest Transaction (Month/Day/Year) 05/12/2011
	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	05/12/2011		S		42,949	D(3)	$55.54	24,915,594(3)(4)(5)(6)	I(3)(4)(5)(6)	See Footnote(1)(2)(3)(4)(5)(6)
Common Stock	05/12/2011		J		61,534	D(3)	$0	24,854,060(3)(4)(5)(6)	I(3)(4)(5)(6)	See Footnote(1)(2)(3)(4)(5)(6)

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* PROMETHEUS SENIOR QUARTERS LLC (Last) (First) (Middle) 30 ROCKEFELLER PLAZA (Street) NEW YORK NY 10020 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer Director X 10% Owner Officer (give title below) Other (specify below)

1. Name and Address of Reporting Person* Lazard Senior Housing Partners LP (Last) (First) (Middle) 30 ROCKEFELLER PLAZA (Street) NEW YORK NY 10020 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer Director X 10% Owner Officer (give title below) Other (specify below)

1. Name and Address of Reporting Person* LSHP Coinvestment Partnership I LP (Last) (First) (Middle) 30 ROCKEFELLER PLAZA (Street) NEW YORK NY 10020 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer Director X 10% Owner Officer (give title below) Other (specify below)

1. Name and Address of Reporting Person* LFSRI II CADIM ALTERNATIVE PARTNERSHIP L P (Last) (First) (Middle) 30 ROCKEFELLER PLAZA (Street) NEW YORK NY 10020 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer Director X 10% Owner Officer (give title below) Other (specify below)

1. Name and Address of Reporting Person* LF STRATEGIC REALTY INVESTORS II L P (Last) (First) (Middle) 30 ROCKEFELLER PLAZA (Street) NEW YORK NY 10020 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer Director X 10% Owner Officer (give title below) Other (specify below)

1. Name and Address of Reporting Person* LFSRI II ALTERNATIVE PARTNERSHIP L P (Last) (First) (Middle) 30 ROCKEFELLER PLAZA (Street) NEW YORK NY 10020 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer Director X 10% Owner Officer (give title below) Other (specify below)

1. Name and Address of Reporting Person* LAZARD FRERES REAL ESTATE INVESTORS LLC (Last) (First) (Middle) 30 ROCKEFELLER PLAZA (Street) NEW YORK NY 10020 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer Director X 10% Owner Officer (give title below) Other (specify below)

1. Name and Address of Reporting Person* Lazard Senior Housing Partners GP LLC (Last) (First) (Middle) 30 ROCKEFELLER PLAZA (Street) NEW YORK NY 10020 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer Director X 10% Owner Officer (give title below) Other (specify below)

1. Name and Address of Reporting Person* LSHP Coinvestment I GP LLC (Last) (First) (Middle) 30 ROCKEFELLER PLAZA (Street) NEW YORK NY 10020 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer Director X 10% Owner Officer (give title below) Other (specify below)

1. Name and Address of Reporting Person* Lazard Alternative Investments Holdings LLC (Last) (First) (Middle) 30 ROCKEFELLER PLAZA (Street) NEW YORK NY 10020 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer Director X 10% Owner Officer (give title below) Other (specify below)

Explanation of Responses:

1. This statement is being filed jointly by (i) Prometheus Senior Quarters LLC, a Delaware limited liability company ("Prometheus"), (ii) Lazard Senior Housing Partners LP, a Delaware limited partnership ("LSHP"), (iii) LSHP Coinvestment Partnership I LP, a Delaware limited partnership ("LSHP Coinvest" and, together with Prometheus and LSHP, the "Funds"), (iv) LFSRI II-CADIM Alternative Partnership L.P., a Delaware limited partnership, (v) LF Strategic Realty Investors II L.P., a Delaware limited partnership, (vi) LFSRI II Alternative Partnership L.P., a Delaware limited partnership, (vii) Lazard Freres Real Estate Investors L.L.C., a New York limited liability company ("LFREI"), (viii) Lazard Senior Housing Partners GP LLC, a Delaware limited liability company ("LSHP GP"),

2. [continued from Footnote 1](ix) LSHP Coinvestment I GP LLC, a Delaware limited liability company ("LSHP Coinvest GP"), (x) Lazard Alternative Investments LLC, a Delaware limited liability company ("LAI"), (xi) Lazard Alternative Investments Holdings LLC, a Delaware limited liability company ("LAI Holdings"), and (xii) LFCM Holdings LLC, a Delaware limited liability company (all of such entities are collectively referred to as the "Reporting Persons"). As a result of the 10 Reporting Person per joint filing limitation of the electronic system, this Form 4 is being filed in duplicate (10 Reporting Persons have filed on this Form 4 and 2 Reporting Persons have filed on a duplicate Form 4).

3. On May 12, 2011, Prometheus, LSHP, and LSHP Coinvest transferred 76,791, 24,901 and 5,211 shares of common stock, par value $0.25 per share, (the "Common Stock") of Ventas, Inc., a Delaware corporation (the "Issuer"), respectively, at $55.54 per share to Atria Senior Living, Inc., a Delaware corporation ("ASLI") and wholly-owned subsidiary of the Funds, to facilitate certain incentive compensation arrangements ASLI is making available to its employees pursuant to which such employees acquire such shares. Prometheus, LSHP and LSHP Coinvest retained voting and dispositive power over such shares of Common Stock until such time as they are disposed of by ASLI. Effective as of May 12, 2011, ASLI sold 42,949 of such shares and awarded 61,534 of such shares to certain employees of ASLI in connection with its incentive compensation arrangements, following approval by each of the Funds.

4. Following the transfers described above, Prometheus, LSHP and LSHP Coinvest are the holders of record of 17,851,355, 5,788,817 and 1,211,468 shares of Common Stock, respectively.

5. The shares of Common Stock held by ASLI may be deemed to be beneficially owned by the Funds. The shares of Common Stock beneficially owned by Prometheus may be deemed to be beneficially owned by each of LFSRI II-CADIM Alternative Partnership L.P., LF Strategic Realty Investors II L.P. and LFSRI II Alternative Partnership L.P., as its Managing Members, and by LFREI, as their general partner. The shares of Common Stock beneficially owned by LSHP may be deemed to be beneficially owned by LSHP GP, as its general partner.

6. [continued from Footnote 5] LAI (as the Managing Member of each of LFREI, LSHP GP and LSHP Coinvest GP), LAI Holdings (as the parent of LAI), and LFCM Holdings LLC (as the parent of Lazard Alternative Investments Holdings LLC and the ultimate parent of LAI) may be deemed to beneficially own the shares of Common Stock beneficially owned by the Funds. Each of the Reporting Persons expressly disclaims beneficial ownership of the shares of Common Stock reported herein, except to the extent of its pecuniary interest therein, if any.

	PROMETHEUS SENIOR QUARTERS LLC, By: Lazard Freres Real Estate Investors L.L.C., the General Partner of its Managing Members, By: /s/ Matthew J Lustig, Managing Principal	05/16/2011
	LAZARD SENIOR HOUSING PARTNERS LP, By: Lazard Senior Housing Partners GP LLC, its General Partner, By: /s/ Matthew J. Lustig, Managing Principal and CEO	05/16/2011
	LSHP COINVESTMENT PARTNERSHIP I LP, By: LSHP Coinvestment I GP LLC, its General Partner, By: /s/ Matthew J. Lustig, Managing Principal and CEO	05/16/2011
	LFSRI II-CADIM ALTERNATIVE PARTNERSHIP L.P., By: Lazard Freres Real Estate Investors L.L.C., its General Partner, By: /s/ Matthew J. Lustig, Managing Principal	05/16/2011
	LF STRATEGIC REALTY INVESTORS II L.P., By: Lazard Freres Real Estate Investors L.L.C., its General Partner, By: /s/ Matthew J. Lustig, Managing Principal	05/16/2011
	LFSRI II ALTERNATIVE PARTNERSHIP L.P, By: Lazard Freres Real Estate Investors L.L.C., its General Partner, By: /s/ Matthew J. Lustig, Managing Principal	05/16/2011
	LAZARD FRERES REAL ESTATE INVESTORS L.L.C., By: /s/ Matthew J. Lustig, Managing Principal	05/16/2011
	LAZARD SENIOR HOUSING PARTNERS GP LLC, By: /s/ Matthew J. Lustig, Managing Principal and CEO	05/16/2011
	LSHP COINVESTMENT I GP LLC, By: /s/ Matthew J. Lustig, Managing Principal and CEO	05/16/2011
	LAZARD ALTERNATIVE INVESTMENTS LLC, By: /s/ Matthew J. Lustig, Managing Director	05/16/2011
	** Signature of Reporting Person	Date
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