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
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(Print or Type Responses)
1. Name and Address of Reporting Person *
SCHLOSSTEIN RALPH
   2. Issuer Name and Ticker or Trading Symbol
BLACKROCK INC /NY [BLK] 		5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
__X__ Director _____ 10% Owner
__X__ Officer (give title below) _____ Other (specify below)
President
(Last)
(First)
(Middle)
C/O BLACKROCK FINANCIAL MANAGEMENT, INC., 40 EAST 52ND STREET		 3. Date of Earliest Transaction (Month/Day/Year)
07/19/2005
(Street)

NEW YORK, NY 10022		 4. If Amendment, Date Original Filed(Month/Day/Year)
 6. Individual or Joint/Group Filing(Check Applicable Line)
_X_ Form filed by One Reporting Person
___ 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
Shares of Class A Common Stock (par value $0.01 per share) 07/19/2005   C(1)   50,000 A (2) 545,800 (3) D  
Shares of Class A Common Stock (par value $0.01 per share) 07/20/2005   S   6,300 D $ 83 539,500 (3) D  
Shares of Class A Common Stock (par value $0.01 per share) 07/20/2005   S   100 D $ 83.01 539,400 (3) D  
Shares of Class A Common Stock (par value $0.01 per share) 07/20/2005   S   500 D $ 83.02 538,900 (3) D  
Shares of Class A Common Stock (par value $0.01 per share) 07/20/2005   S   200 D $ 83.03 538,700 (3) D  
Shares of Class A Common Stock (par value $0.01 per share) 07/20/2005   S   400 D $ 83.04 538,300 (3) D  
Shares of Class A Common Stock (par value $0.01 per share) 07/20/2005   S   4,300 D $ 83.05 534,000 (3) D  
Shares of Class A Common Stock (par value $0.01 per share) 07/20/2005   S   600 D $ 83.06 533,400 (3) D  
Shares of Class A Common Stock (par value $0.01 per share) 07/20/2005   S   3,000 D $ 83.07 530,400 (3) D  
Shares of Class A Common Stock (par value $0.01 per share) 07/20/2005   S   2,000 D $ 83.08 528,400 (3) D  
Shares of Class A Common Stock (par value $0.01 per share) 07/20/2005   S   100 D $ 83.1 528,300 (3) D  
Shares of Class A Common Stock (par value $0.01 per share) 07/20/2005   S   100 D $ 83.12 528,200 (3) D  
Shares of Class A Common Stock (par value $0.01 per share) 07/20/2005   S   500 D $ 83.13 527,700 (3) D  
Shares of Class A Common Stock (par value $0.01 per share) 07/20/2005   S   7,300 D $ 83.15 520,400 (3) D  
Shares of Class A Common Stock (par value $0.01 per share) 07/20/2005   S   100 D $ 83.17 520,300 (3) D  
Shares of Class A Common Stock (par value $0.01 per share) 07/20/2005   S   100 D $ 83.19 520,200 (3) D  
Shares of Class A Common Stock (par value $0.01 per share) 07/20/2005   S   200 D $ 83.2 520,000 (3) D  
Shares of Class A Common Stock (par value $0.01 per share) 07/20/2005   S   100 D $ 83.23 519,900 (3) D  
Shares of Class A Common Stock (par value $0.01 per share) 07/20/2005   S   300 D $ 83.24 519,600 (3) D  
Shares of Class A Common Stock (par value $0.01 per share) 07/20/2005   S   4,600 D $ 83.25 515,000 (3) D  
Shares of Class A Common Stock (par value $0.01 per share) 07/20/2005   S   1,300 D $ 83.27 513,700 (3) D  
Shares of Class A Common Stock (par value $0.01 per share) 07/20/2005   S   11,300 D $ 83.28 502,400 (3) D  
Shares of Class A Common Stock (par value $0.01 per share) 07/20/2005   S   1,900 D $ 83.29 500,500 (3) D  
Shares of Class A Common Stock (par value $0.01 per share) 07/20/2005   S   600 D $ 83.3 499,900 (3) D  
Shares of Class A Common Stock (par value $0.01 per share) 07/20/2005   S   400 D $ 83.32 499,500 (3) D  
Shares of Class A Common Stock (par value $0.01 per share) 07/20/2005   S   100 D $ 83.34 499,400 (3) D  
Shares of Class A Common Stock (par value $0.01 per share) 07/21/2005   S   1,200 D $ 82.6 498,200 (3) D  
Shares of Class A Common Stock (par value $0.01 per share) 07/21/2005   S   2,400 D $ 82.7 495,800 (3) D  

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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
Class B Common Stock (par value $0.01 per share) (2) 07/19/2005   C(1)     50,000 12/31/2002   (4) Class A Common Stock 50,000 (2) 473,000.83 D (5)  

Reporting Owners

Reporting Owner Name / Address Relationships
 Director  10% Owner  Officer  Other
SCHLOSSTEIN RALPH
C/O BLACKROCK FINANCIAL MANAGEMENT, INC.
40 EAST 52ND STREET
NEW YORK, NY 10022		   X     President  

Signatures

 Daniel R. Waltcher as Attorney-in-Fact for Ralph Schlosstein   07/21/2005
**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) The reporting person converted 50,000 shares of Class B Common Stock (See Table I) into 50,000 shares of Class A Common Stock on 7/19/05.
(2) One share of Class B Common Stock is convertible into one share of Class A Common Stock.
(3) Includes 2,542 shares of Class A Common Stock acquired by the reporting person under the BlackRock, Inc. Employee Stock Purchase Plan through January 31, 2005. Also includes 1,206 shares of Class A Common Stock acquired by the reporting person through June 30, 2005 under The PNC Financial Services Group, Inc. Incentive Savings Plan (the "ISP"). The information on this report with respect to the ISP is based on a plan statement as of June 30, 2005.
(4) The shares of Class B Common Stock can be converted at any time into shares of Class A Common Stock.
(5) The reporting person has direct ownership of 198,000.83 shares of Class B Common Stock and indirect ownership of 275,000 shares of Class B Common Stock through the Ralph L. Schlosstein 1998 Long-Term Trust U/A/D 2/2/98.

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