-----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, PdpSmB+ilugwcx3JX2eBZmY1kEKYXaUhzZRvs2CfqoQ67UbFse2DbsDk4zAHzOPn AsqxuhbF1MhlZZlCzyfN3Q== 0000950131-99-001115.txt : 19990226 0000950131-99-001115.hdr.sgml : 19990226 ACCESSION NUMBER: 0000950131-99-001115 CONFORMED SUBMISSION TYPE: SC 13G/A PUBLIC DOCUMENT COUNT: 1 FILED AS OF DATE: 19990225 GROUP MEMBERS: ACORN INVESTMENT TRUST GROUP MEMBERS: WANGER ASSET MANAGEMENT LP GROUP MEMBERS: WANGER ASSET MANAGEMENT, LTD. SUBJECT COMPANY: COMPANY DATA: COMPANY CONFORMED NAME: MAGELLAN HEALTH SERVICES INC CENTRAL INDEX KEY: 0000019411 STANDARD INDUSTRIAL CLASSIFICATION: SERVICES-HOSPITALS [8060] IRS NUMBER: 581076937 STATE OF INCORPORATION: DE FISCAL YEAR END: 0930 FILING VALUES: FORM TYPE: SC 13G/A SEC ACT: SEC FILE NUMBER: 005-05938 FILM NUMBER: 99549267 BUSINESS ADDRESS: STREET 1: 3414 PEACHTREE RD N E STREET 2: STE 1400 CITY: ATLANTA STATE: GA ZIP: 30326 BUSINESS PHONE: 9127421161 FORMER COMPANY: FORMER CONFORMED NAME: CHARTER MEDICAL CORP DATE OF NAME CHANGE: 19920703 FILED BY: COMPANY DATA: COMPANY CONFORMED NAME: WANGER ASSET MANAGEMENT LP CENTRAL INDEX KEY: 0000908733 STANDARD INDUSTRIAL CLASSIFICATION: UNKNOWN SIC - 0000 [0000] IRS NUMBER: 363820584 STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: SC 13G/A BUSINESS ADDRESS: STREET 1: 227 W MONROE STREET STREET 2: SUITE 3000 CITY: CHICAGO STATE: IL ZIP: 60606 BUSINESS PHONE: 3126349230 MAIL ADDRESS: STREET 1: 227 W MONROE ST STREET 2: STE 3000 CITY: CHICAGO STATE: IL ZIP: 60606 FORMER COMPANY: FORMER CONFORMED NAME: WANGER ASSET MANAGEMENT LP DATE OF NAME CHANGE: 19960619 SC 13G/A 1 MAGELLAN HEALTH SERVICES, INC. UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 1)* MAGELLAN HEALTH SERVICES, INC. - -------------------------------------------------------------------------------- (Name of Issuer) COMMON STOCK - -------------------------------------------------------------------------------- (Title of Class of Securities) 559079108 ---------------------------------------- (CUSIP Number) *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 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). SEC 1745 (2/92) Page 1 of 8 pages CUSIP No. 559079108 13G Page 2 of 8 --------- - ------------------------------------------------------------------------------ 1 NAME OF REPORTING PERSON S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON: Wanger Asset Management, L.P. 36-3820584 - ------------------------------------------------------------------------------ 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* Not Applicable (a) [ ] (b) [ ] - ------------------------------------------------------------------------------ 3 SEC USE ONLY - ------------------------------------------------------------------------------ 4 CITIZENSHIP OR PLACE OF ORGANIZATION Delaware - ------------------------------------------------------------------------------ NUMBER OF 5 SOLE VOTING POWER SHARES None -------------------------------------------- BENEFICIALLY 6 SHARED VOTING POWER OWNED BY 2,145,900 -------------------------------------------- EACH 7 SOLE DISPOSITIVE POWER REPORTING None -------------------------------------------- PERSON 8 SHARED DISPOSITIVE POWER WITH 2,145,900 - ------------------------------------------------------------------------------ 9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 2,145,900 - ------------------------------------------------------------------------------ 10 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES* Not Applicable [ ] - ------------------------------------------------------------------------------ 11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9) 6.79% - ------------------------------------------------------------------------------ 12 TYPE OF REPORTING PERSON* IA - ------------------------------------------------------------------------------ * SEE INSTRUCTIONS BEFORE FILLING OUT! CUSIP No. 559079108 13G Page 3 of 8 --------- - ------------------------------------------------------------------------------ 1 NAME OF REPORTING PERSON S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON: Wanger Asset Management, Ltd. - ------------------------------------------------------------------------------ 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* Not Applicable (a) [ ] (b) [ ] - ------------------------------------------------------------------------------ 3 SEC USE ONLY - ------------------------------------------------------------------------------ 4 CITIZENSHIP OR PLACE OF ORGANIZATION Delaware - ------------------------------------------------------------------------------ NUMBER OF 5 SOLE VOTING POWER SHARES None -------------------------------------------- BENEFICIALLY 6 SHARED VOTING POWER OWNED BY 2,145,900 -------------------------------------------- EACH 7 SOLE DISPOSITIVE POWER REPORTING None -------------------------------------------- PERSON 8 SHARED DISPOSITIVE POWER WITH 2,145,900 - ------------------------------------------------------------------------------ 9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 2,145,900 - ------------------------------------------------------------------------------ 10 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES* Not Applicable [ ] - ------------------------------------------------------------------------------ 11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9) 6.79% - ------------------------------------------------------------------------------ 12 TYPE OF REPORTING PERSON* CO - ------------------------------------------------------------------------------ * SEE INSTRUCTIONS BEFORE FILLING OUT! CUSIP No. 559079108 13G Page 4 of 8 --------- - ------------------------------------------------------------------------------ 1 NAME OF REPORTING PERSON S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON: Acorn Investment Trust - ------------------------------------------------------------------------------ 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* Not Applicable (a) [ ] (b) [ ] - ------------------------------------------------------------------------------ 3 SEC USE ONLY - ------------------------------------------------------------------------------ 4 CITIZENSHIP OR PLACE OF ORGANIZATION Massachusetts - ------------------------------------------------------------------------------ NUMBER OF 5 SOLE VOTING POWER SHARES None -------------------------------------------- BENEFICIALLY 6 SHARED VOTING POWER OWNED BY 1,630,000 -------------------------------------------- EACH 7 SOLE DISPOSITIVE POWER REPORTING None -------------------------------------------- PERSON 8 SHARED DISPOSITIVE POWER WITH 1,630,000 - ------------------------------------------------------------------------------ 9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 1,630,000 - ------------------------------------------------------------------------------ 10 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES* Not Applicable [ ] - ------------------------------------------------------------------------------ 11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9) 5.16% - ------------------------------------------------------------------------------ 12 TYPE OF REPORTING PERSON* IV - ------------------------------------------------------------------------------ * SEE INSTRUCTIONS BEFORE FILLING OUT! Item 1(a) Name of Issuer: Magellan Health Services, Inc. Item 1(b) Address of Issuer's Principal Executive Offices: 3414 Peachtree Road, Suite 1400 Atlanta, GA 30326 Item 2(a) Name of Person Filing: Wanger Asset Management, L.P. ("WAM"); Wanger Asset Management Ltd., the general partner of WAM ("WAM LTD."); Acorn Investment Trust ("Acorn"). Item 2(b) Address of Principal Business Office: WAM, WAM LTD. and Acorn are all located at: 227 West Monroe Street, Suite 3000 Chicago, Illinois 60606 Item 2(c) Citizenship: WAM is a Delaware limited partnership. WAM LTD. is a Delaware corporation. Acorn is a Massachusetts business trust. Item 2(d) Title of Class of Securities: Common Stock Item 2(e) CUSIP Number: 559079108 Item 3 Type of Person: (d) Acorn is an Investment Company registered under section 8 of the Investment Company Act of 1940. (e) WAM is an Investment Adviser registered under section 203 of the Investment Advisers Act of 1940; WAM LTD. is the General Partner of the Investment Adviser. Page 5 of 8 pages Item 4 Ownership (at December 31, 1998): -- (a) Amount owned "beneficially" within the meaning of rule 13d-3: 2,145,900 shares (b) Percent of class: 6.79% (c) Number of shares as to which such person has: (i) sole power to vote or to direct the vote: none (ii) shared power to vote or to direct the vote: 2,145,900 (iii) sole power to dispose or to direct the disposition of: none (iv) shared power to dispose or to direct disposition of: 2,145,900 Item 5 Ownership of Five Percent or Less of a Class: Not Applicable Item 6 Ownership of More than Five Percent on Behalf of Another Person: The shares reported herein have been acquired on behalf of discretionary clients of WAM, including Acorn. Persons other than WAM and WAM LTD. are entitled to receive all dividends from, and proceeds from the sale of, those shares. Acorn is the only such person known to be entitled to receive all dividends from, and all proceeds from the sale of, shares reported herein to the extent more than 5% of the class. 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 Page 6 of 8 pages Item 10 Certification: By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were acquired in the ordinary course of business and were not acquired for the purpose of and do not have the effect of changing or influencing the control of the issuer of such securities and were not acquired in connection with or as a participant in any transaction having such purpose or effect. Page 7 of 8 pages 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. Date: February 23, 1999 The undersigned corporation, on the date above written, agrees and consents to the joint filing on its behalf of this Schedule 13G in connection with its beneficial ownership of the security reported herein. WANGER ASSET MANAGEMENT, LTD. for itself and as general partner of WANGER ASSET MANAGEMENT, L.P. By: /s/ Bruce H. Lauer ------------------------------------ Bruce H. Lauer Vice President The undersigned, on the date above written, agrees and consents to the joint filing on its behalf of this Schedule 13G in connection with its beneficial ownership of the security reported herein. ACORN INVESTMENT TRUST By: /s/ Bruce H. Lauer ------------------------------------ Bruce H. Lauer Vice President and Treasurer Page 8 of 8 pages -----END PRIVACY-ENHANCED MESSAGE-----