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 *
FINK LAURENCE
  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)
Chairman and CEO
(Last)
(First)
(Middle)
C/O BLACKROCK FINANCIAL MANAGEMENT, INC., 40 EAST 52ND STREET
3. Date of Earliest Transaction (Month/Day/Year)
09/08/2005
(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) 09/08/2005   C(1)   142,340 A (2) 142,340 I By Trust (3)
Shares of Class A Common Stock (par value $0.01 per share)               69,208 (4) D  

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
Class B Common Stock (par value $0.01 per share) (2) 09/08/2005   C(1)     142,340 12/31/2002   (5) Class A Common Stock 142,340 (2) 0 I By Trust (3)
Class B Common Stock (par value $0.01 per share) (2)             12/31/2002   (5) Class A Common Stock 1,337,056.28   1,337,056.28 D  

Reporting Owners

Reporting Owner Name / Address Relationships
 Director  10% Owner  Officer  Other
FINK LAURENCE
C/O BLACKROCK FINANCIAL MANAGEMENT, INC.
40 EAST 52ND STREET
NEW YORK, NY 10022
  X     Chairman and CEO  

Signatures

 Daniel R. Waltcher, as Attorney-in-Fact for Laurence Fink   09/09/2005
**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 Laurence D. Fink and Lori W. Fink Irrevocable Family Trust U/A/D 1/10/95 converted 142,340 shares of Class B Common Stock (See Table I) into 142,340 shares of Class A Common Stock on 9/8/05.
(2) One share of Class B Common Stock is convertible into one share of Class A Common Stock.
(3) Indirect ownership through the Laurence D. Fink and Lori W. Fink Irrevocable Family Trust U/A/D 1/10/95.
(4) Includes 2,619 shares of Class A Common Stock acquired under the BlackRock, Inc. Employee Stock Purchase Plan through July 31, 2005. Also includes 1,209 shares of Class A Common Stock acquired by the reporting person through August 31, 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 dated as of August 31, 2005.
(5) The shares of Class B Common Stock can be converted at any time into shares of Class A Common Stock.

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.