EXHIBIT 99.1

Information Regarding Joint Filers

Designated Filer of Form 3: Bank of America Ventures

Item 2. Date of Event Requiring Statement: June 10, 2004

Item 4. Issuer Name and Ticker Symbol: Acusphere, Inc. (ACUS)

 

Designated Filer:

Ownership Form

Nature of Indirect

Beneficial Ownership

Bank of America Ventures

950 Tower Lane, Suite 700

Foster City, CA 94404

 

 

Direct

 

Joint Filers:

   

Bank of America Corporation

100 North Tryon Street

Bank of America Plaza

Charlotte, NC 28255

Indirect

Indirect 100% Owner of Reported Shares, as 100% Parent of Bank of America, N.A.

Bank of America, N.A.

101 South Tryon Street

Bank of America Plaza

Charlotte, NC 28255

 

Indirect

Indirect 100% Owner of Reported Shares, as 100% Parent of Bank of America Ventures

NB Holdings Corporation

100 North Tryon Street

Bank of America Plaza

Charlotte, NC 28255

Indirect

 

SIGNATURES

BANK OF AMERICA CORPORATION

NB HOLDINGS CORPORATION

BANK OF AMERICA, N.A.

 

 

By: /s/ Charles F Bowman Date: June 15, 2004

Charles F. Bowman

Senior Vice President