EX-99.77O RULE 10F-3 4 munibdin77o.htm 10F-3 TRANSACTIONS

BlackRock Municipal Bond Fund, Inc.

BlackRock Municipal Insured Fund

FILE #811-02688

ATTACHMENT 77O




TRADE DATE

DESCRIPTION OF SECURITY

ISSUE SIZE

AMOUNT PURCHASED

LIST OF UNDERWRITERS

08/23/2007

City of San Jose California, Airport Revenue Bond

     725,015,000

6,600,000

Lehman Brothers; Citigroup Global Markets Inc.; Merrill Lynch & Co.; E.J. De La Rosa & Co., Inc.; Goldman, Sachs & Co.; Loop Capital Markets; Morgan Stanley & Co. Incorporated; RBC Capital Markets