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Filing Details

Accession Number:: 0001209191-10-039720
Form Type:: 4
Zero Holdings:: No
Publication Time:: 2010-07-27 13:00:00
Reporting Period:: 2010-07-23

Filing Date:: 2010-07-27
Accepted Time:: 2010-07-27 16:30:41
SEC Url:: Form 4 Filing

Issuer

Cik	Name	Symbol	Sector (SIC)	IRS No
1364742	Blackrock Inc.	BLK	Security Brokers, Dealers & Flotation Companies (6211)	320174431

Insiders

Cik	Name	Reported Address	Insider Title	Director	Officer	Large Shareholder	Other
1033050	James Grosfeld	Blackrock, Inc. 55 East 52Nd Street New York NY 10055		Yes	No	No	No

Reported Non-Derivative Transactions

Show Other Fields >>

Sec. Name	Acquisiton - Disposition	Date	Amount	Price	Remaning Holdings	Equity Swap Involved	Form Type	Code	Nature of Ownership
Shares Of Common Stock (Par Value $0.01 Per Share)	Acquisiton	2010-07-23	12,051	$151.14	73,165	No	4	P	Direct
Shares Of Common Stock (Par Value $0.01 Per Share)	Acquisiton	2010-07-23	10,249	$152.06	83,414	No	4	P	Direct
Shares Of Common Stock (Par Value $0.01 Per Share)	Acquisiton	2010-07-23	13,750	$153.13	97,164	No	4	P	Direct
Shares Of Common Stock (Par Value $0.01 Per Share)	Acquisiton	2010-07-23	4,950	$153.92	102,114	No	4	P	Direct

Equity Swap Involved	Form Type	Code	Nature of Ownership
No	4	P	Direct
No	4	P	Direct
No	4	P	Direct
No	4	P	Direct

Footnotes

This transaction was executed in multiple trades at prices ranging from $150.65 to $151.63. The price reported represents the weighted average purchase price of these trades. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer, or a security holder of the issuer, full information regarding the shares purchased at each separate price.
This transaction was executed in multiple trades at prices ranging from $151.68 to $152.67. The price reported represents the weighted average purchase price of these trades. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer, or a security holder of the issuer, full information regarding the shares purchased at each separate price.
This transaction was executed in multiple trades at prices ranging from $152.73 to $153.72. The price reported represents the weighted average purchase price of these trades. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer, or a security holder of the issuer, full information regarding the shares purchased at each separate price.
This transaction was executed in multiple trades at prices ranging from $153.76 to $154.00. The price reported represents the weighted average purchase price of these trades. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer, or a security holder of the issuer, full information regarding the shares purchased at each separate price.