-----BEGIN PRIVACY-ENHANCED MESSAGE----- Proc-Type: 2001,MIC-CLEAR Originator-Name: webmaster@www.sec.gov Originator-Key-Asymmetric: MFgwCgYEVQgBAQICAf8DSgAwRwJAW2sNKK9AVtBzYZmr6aGjlWyK3XmZv3dTINen TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB MIC-Info: RSA-MD5,RSA, OeDrQBQpqpGNjLfSJRYZCIR8PRXqqnot4FaepP85sqwiYXZzg9zR1fM+qS9gajBL qmyU0Np/1LCLLp1oqTIudg== 0000899140-07-000282.txt : 20070214 0000899140-07-000282.hdr.sgml : 20070214 20070214104926 ACCESSION NUMBER: 0000899140-07-000282 CONFORMED SUBMISSION TYPE: SC 13G/A PUBLIC DOCUMENT COUNT: 2 FILED AS OF DATE: 20070214 DATE AS OF CHANGE: 20070214 GROUP MEMBERS: SIGMA CAPITAL MANAGEMENT, LLC GROUP MEMBERS: STEVEN A. COHEN SUBJECT COMPANY: COMPANY DATA: COMPANY CONFORMED NAME: ADVANCED MAGNETICS INC CENTRAL INDEX KEY: 0000792977 STANDARD INDUSTRIAL CLASSIFICATION: IN VITRO & IN VIVO DIAGNOSTIC SUBSTANCES [2835] IRS NUMBER: 042742593 STATE OF INCORPORATION: DE FISCAL YEAR END: 0930 FILING VALUES: FORM TYPE: SC 13G/A SEC ACT: 1934 Act SEC FILE NUMBER: 005-38286 FILM NUMBER: 07614702 BUSINESS ADDRESS: STREET 1: 125 CAMBRIDGEPARK DRIVE, 6TH FLOOR CITY: CAMBRIDGE STATE: MA ZIP: 02140 BUSINESS PHONE: 6174972070 MAIL ADDRESS: STREET 1: 125 CAMBRIDGEPARK DRIVE, 6TH FLOOR CITY: CAMBRIDGE STATE: MA ZIP: 02140 FILED BY: COMPANY DATA: COMPANY CONFORMED NAME: CR Intrinsic Investors, LLC CENTRAL INDEX KEY: 0001316388 IRS NUMBER: 000000000 STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: SC 13G/A BUSINESS ADDRESS: STREET 1: 72 CUMMINGS POINT ROAD CITY: STAMFORD STATE: CT ZIP: 06902 BUSINESS PHONE: 203-890-2153 MAIL ADDRESS: STREET 1: 72 CUMMINGS POINT ROAD CITY: STAMFORD STATE: CT ZIP: 06902 SC 13G/A 1 a020207a.txt FIRST AMENDMENT UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 1)* ADVANCED MAGNETICS, INC. - -------------------------------------------------------------------------------- (Name of Issuer) Common Stock, $0.01 Par Value Per Share - -------------------------------------------------------------------------------- (Title of Class of Securities) 00753P103 --------- (CUSIP Number) December 31, 2006 ----------------- (Date of Event which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to which this Schedule is filed: [ ] Rule 13d-1(b) [X] Rule 13d-1(c) [ ] Rule 13d-1(d) *The remainder of this cover page shall be filled out for a reporting person's initial filing on this form with respect to the subject class of securities, and for any subsequent amendment containing information which would alter the disclosures provided in a prior cover page. The information required on the remainder of this cover page shall not be deemed to be "filed" for the purpose of Section 18 of the Securities Exchange Act of 1934 ("Act") or otherwise subject to the liabilities of that section of the Act but shall be subject to all other provisions of the Act (however, see the Notes). Page 1 of 8 - -------------------------------- ------------------ CUSIP No. 00753P103 13G Page 2 of 8 Pages - -------------------------------- ------------------ - ---------- --------------------------------------------------------------------- 1 NAME OF REPORTING PERSON I.R.S. IDENTIFICATION NO. OF ABOVE PERSON CR Intrinsic Investors, LLC - ---------- --------------------------------------------------------------------- 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) [ ] (b) [X] - ---------- --------------------------------------------------------------------- 3 SEC USE ONLY - ---------- --------------------------------------------------------------------- 4 CITIZENSHIP OR PLACE OF ORGANIZATION Delaware - -------------------- ------ ---------------------------------------------------- 5 SOLE VOTING POWER 0 ------ ---------------------------------------------------- NUMBER OF SHARES 6 SHARED VOTING POWER BENEFICIALLY OWNED BY EACH REPORTING 0 (see Item 4) PERSON WITH ------ ---------------------------------------------------- 7 SOLE DISPOSITIVE POWER 0 ------ ---------------------------------------------------- 8 SHARED DISPOSITIVE POWER 0 (see Item 4) - ---------- --------------------------------------------------------------------- 9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 0 (see Item 4) - ---------- --------------------------------------------------------------------- 10 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES [ ] - ---------- --------------------------------------------------------------------- 11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9) 0% (see Item 4) - ---------- --------------------------------------------------------------------- 12 TYPE OF REPORTING PERSON* 00 - ---------- --------------------------------------------------------------------- *SEE INSTRUCTION BEFORE FILLING OUT Page 2 of 8 - -------------------------------- ------------------ CUSIP No. 00753P103 13G Page 3 of 8 Pages - -------------------------------- ------------------ - ---------- --------------------------------------------------------------------- 1 NAME OF REPORTING PERSON I.R.S. IDENTIFICATION NO. OF ABOVE PERSON Sigma Capital Management, LLC - ---------- --------------------------------------------------------------------- 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) [ ] (b) [X] - ---------- --------------------------------------------------------------------- 3 SEC USE ONLY - ---------- --------------------------------------------------------------------- 4 CITIZENSHIP OR PLACE OF ORGANIZATION Delaware - -------------------- ------ ---------------------------------------------------- 5 SOLE VOTING POWER 0 ------ ---------------------------------------------------- NUMBER OF SHARES 6 SHARED VOTING POWER BENEFICIALLY OWNED BY EACH REPORTING 0 (see Item 4) PERSON WITH ------ ---------------------------------------------------- 7 SOLE DISPOSITIVE POWER 0 ------ ---------------------------------------------------- 8 SHARED DISPOSITIVE POWER 0 (see Item 4) - ---------- --------------------------------------------------------------------- 9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 0 (see Item 4) - ---------- --------------------------------------------------------------------- 10 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES [ ] - ---------- --------------------------------------------------------------------- 11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9) 0% (see Item 4) - ---------- --------------------------------------------------------------------- 12 TYPE OF REPORTING PERSON* 00 - ---------- --------------------------------------------------------------------- *SEE INSTRUCTION BEFORE FILLING OUT Page 3 of 8 - -------------------------------- ------------------ CUSIP No. 00753P103 13G Page 4 of 8 Pages - -------------------------------- ------------------ - ---------- --------------------------------------------------------------------- 1 NAME OF REPORTING PERSON I.R.S. IDENTIFICATION NO. OF ABOVE PERSON Steven A. Cohen - ---------- --------------------------------------------------------------------- 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) [ ] (b) [X] - ---------- --------------------------------------------------------------------- 3 SEC USE ONLY - ---------- --------------------------------------------------------------------- 4 CITIZENSHIP OR PLACE OF ORGANIZATION United States - -------------------- ------ ---------------------------------------------------- 5 SOLE VOTING POWER 0 ------ ---------------------------------------------------- NUMBER OF SHARES 6 SHARED VOTING POWER BENEFICIALLY OWNED BY EACH REPORTING 0 (see Item 4) PERSON WITH ------ ---------------------------------------------------- 7 SOLE DISPOSITIVE POWER 0 ------ ---------------------------------------------------- 8 SHARED DISPOSITIVE POWER 0 (see Item 4) - ---------- --------------------------------------------------------------------- 9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 0 (see Item 4) - ---------- --------------------------------------------------------------------- 10 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES [ ] - ---------- --------------------------------------------------------------------- 11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9) 0% (see Item 4) - ---------- --------------------------------------------------------------------- 12 TYPE OF REPORTING PERSON* IN - ---------- --------------------------------------------------------------------- *SEE INSTRUCTION BEFORE FILLING OUT Page 4 of 8 Item 1(a) Name of Issuer: -------------- Advanced Magnetics, Inc. Item 1(b) Address of Issuer's Principal Executive Offices: ----------------------------------------------- 125 Cambridge Park Drive-6th Floor Cambridge, MA 02140 Items 2(a) Name of Person Filing: --------------------- This statement is filed by: (i) CR Intrinsic Investors, LLC ("CR Intrinsic Investors") with respect to shares of common stock, par value $0.01 per share ("Shares"), of the Issuer beneficially owned by CR Intrinsic Investments, LLC ("CR Intrinsic Investments"); (ii) Sigma Capital Management, LLC ("Sigma Management") with respect to Shares beneficially owned by Sigma Capital Associates, LLC ("Sigma Capital Associates") and (iii) Steven A. Cohen with respect to Shares beneficially owned by CR Intrinsic Investors, CR Intrinsic Investments, Sigma Management and Sigma Capital Associates. CR Intrinsic Investors, Sigma Management and Steven A. Cohen have entered into a Joint Filing Agreement, a copy of which is filed with this Schedule 13G as Exhibit 99.1, pursuant to which they have agreed to file this Schedule 13G jointly in accordance with the provisions of Rule 13d-1(k) of the Securities Exchange Act of 1934, as amended. Item 2(b) Address of Principal Business Office: ------------------------------------ The address of the principal business office of (i) CR Intrinsic Investors and Mr. Cohen is 72 Cummings Point Road, Stamford, Connecticut 06902 and (ii) Sigma Management is 540 Madison Avenue, New York, New York 10022. Item 2(c) Citizenship: ----------- CR Intrinsic Investors and Sigma Management are Delaware limited liability companies. Mr. Cohen is a United States citizen. Item 2(d) Title of Class of Securities: ---------------------------- Common Stock, par value $0.01 per share Page 5 of 8 Item 2(e) CUSIP Number: ------------ 00753P103 Item 3 Not Applicable Item 4 Ownership: --------- The percentages used herein are calculated based upon the Shares issued and outstanding as of November 15, 2006 as reported on the Issuer's annual report on Form 10-K filed with the Securities and Exchange Commission by the Issuer for the fiscal year ended September 30, 2006. As of the close of business on December 31, 2006: 1. CR Intrinsic Investors, LLC (a) Amount beneficially owned: -0- (b) Percent of class: 0% (c)(i) Sole power to vote or direct the vote: -0- (ii) Shared power to vote or direct the vote: -0- (iii) Sole power to dispose or direct the disposition: -0- (iv) Shared power to dispose or direct the disposition: -0- 2. Sigma Capital Management, LLC (a) Amount beneficially owned: -0- (b) Percent of class: 0% (c)(i) Sole power to vote or direct the vote: -0- (ii) Shared power to vote or direct the vote: -0- (iii) Sole power to dispose or direct the disposition: -0- (iv) Shared power to dispose or direct the disposition: -0- 3. Steven A. Cohen (a) Amount beneficially owned: -0- (b) Percent of class: 0% (c)(i) Sole power to vote or direct the vote: -0- (ii) Shared power to vote or direct the vote: -0- (iii) Sole power to dispose or direct the disposition: -0- (iv) Shared power to dispose or direct the disposition: -0- Mr. Cohen controls each of CR Intrinsic Investors and Sigma Management. Each of CR Intrinsic Investors, Sigma Management and Mr. Cohen disclaim beneficial ownership of any of the securities covered by this statement. Page 6 of 8 Item 5 Ownership of Five Percent or Less of a Class: -------------------------------------------- If this statement is being filed to report the fact that as of the date hereof the reporting person has ceased to be the beneficial owner of more than five percent of the class of securities, check the following. [X] Item 6 Ownership of More than Five Percent on Behalf of Another -------------------------------------------------------- Person: ------ Not Applicable Item 7 Identification and Classification of the ---------------------------------------- Subsidiary Which Acquired the Security Being -------------------------------------------- Reported on By the Parent Holding Company: ----------------------------------------- Not Applicable Item 8 Identification and Classification of Members --------------------------------------------- of the Group: ------------ Not Applicable Item 9 Notice of Dissolution of Group: ------------------------------ Not Applicable Item 10 Certification: ------------- By signing below the signatory certifies that, to the best of his knowledge and belief, the securities referred to above were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect. Page 7 of 8 SIGNATURE --------- After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct. Dated: February 14, 2007 CR INTRINSIC INVESTORS, LLC By: /s/ Peter Nussbaum ----------------------------------------- Name: Peter Nussbaum Title: Authorized Person SIGMA CAPITAL MANAGEMENT, LLC By: /s/ Peter Nussbaum ----------------------------------------- Name: Peter Nussbaum Title: Authorized Person STEVEN A. COHEN By: /s/ Peter Nussbaum ----------------------------------------- Name: Peter Nussbaum Title: Authorized Person Page 8 of 8 EX-99.1 2 a020207b.txt JOINT FILING AGREEMENT Exhibit 99.1 JOINT FILING AGREEMENT The undersigned hereby agree that the foregoing statement on Schedule 13G is filed on behalf of each of the undersigned in accordance with the provisions of Rule 13d-1(k) under the Securities Exchange Act of 1934, as amended, and that all subsequent amendments to this statement on Schedule 13G may be filed on behalf of each of the undersigned without the necessity of filing additional joint filing agreements. Dated: February 14, 2007 CR INTRINSIC INVESTORS, LLC By: /s/ Peter Nussbaum ----------------------------------------- Name: Peter Nussbaum Title: Authorized Person SIGMA CAPITAL MANAGEMENT, LLC By: /s/ Peter Nussbaum ----------------------------------------- Name: Peter Nussbaum Title: Authorized Person STEVEN A. COHEN By: /s/ Peter Nussbaum ----------------------------------------- Name: Peter Nussbaum Title: Authorized Person -----END PRIVACY-ENHANCED MESSAGE-----