UNITED STATES

UNITED STATES SECURITIES AND EXCHANGE COMMISSION STATION PLACE 100 F STREET. NE WASHINGTON. DC 20549-2736 Office of Freedom of Information & Privacy Act Operations April 21, 2010 Mr. Harry Susman Susman Godfrey LLP 1000 Louisiana Street, Suite 5100 Houston, TX 77002 Re: Freedom of Information Act (FOIA), 5 U.S.C. § 552 Request No. 10-04240-FOIA Dear Mr. Susman: This letter is a partial response to your request, dated February 15, 2010 and received in this office on February 18, 2010, for certain information concerning Daniel B. Zwirn in connection with Highbridge Capital Management LLC and associated entities. Based on the information you provided in your request, we conducted a thorough search of the Commission's various systems of records, but did not locate or identify any consumer/investor complaints responsive to your request. If you still have reason to believe that the Commission maintains the type of information you seek, please provide us with additional information, which could prompt another search. Otherwise, we consider this portion of your request to be closed. You have the right to appeal the adequacy of our search or finding of no responsive information to our General Counsel under 5 U.S.C. § 552(a)(6), 17 CFR § 200.80(d) (5) and (6). Your appeal must be in writing, clearly marked "Freedom of Information Act Appeal," and should identify the requested records. The appeal may include facts and authorities you consider appropriate. EFTA00729210 Mr. Harry Susman April 21, 2010 Page 2 10-04240-FOIA Send your appeal to the FOIA/Privacy Act Office of the Securities and Exchange Commission located at Station Place, 100 F Street NE, Mail Stop 2736, Washington, D.C. 20549, or deliver it to Room 1120 at that address. Also, send a copy to the SEC Office of the General Counsel, Mail Stop 9612, or deliver it to Room 1120 at the Station Place address. Further, we are still consulting with other Commission staff regarding investigative information that may be responsive to your request. We will advise you of our findings as soon as we receive a response. If you have any questions, please contact me by email at or by telephone at If you cannot reach me please contact Ms. Celia Winter by calling ■ or by sending an e-mail to [email protected]. Sincerely, Mark P. Siford FOIA/Privacy Act Attorney Advisor EFTA00729211