<SEC-DOCUMENT>0001600141-15-000008-index.html : 20150219 <SEC-HEADER>0001600141-15-000008.hdr.sgml : 20150219 <ACCEPTANCE-DATETIME>20150217205922 ACCESSION NUMBER: 0001600141-15-000008 CONFORMED SUBMISSION TYPE: SC 13G/A PUBLIC DOCUMENT COUNT: 1 FILED AS OF DATE: 20150218 DATE AS OF CHANGE: 20150217 GROUP MEMBERS: ANTHONY JOONKYOO YUN GROUP MEMBERS: PALO ALTO HEALTHCARE MASTER FUND II, L.P. GROUP MEMBERS: PATRICK LEE SUBJECT COMPANY: COMPANY DATA: COMPANY CONFORMED NAME: AMAG PHARMACEUTICALS INC. CENTRAL INDEX KEY: 0000792977 STANDARD INDUSTRIAL CLASSIFICATION: PHARMACEUTICAL PREPARATIONS [2834] IRS NUMBER: 042742593 STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: SC 13G/A SEC ACT: 1934 Act SEC FILE NUMBER: 005-38286 FILM NUMBER: 15625703 BUSINESS ADDRESS: STREET 1: 1100 WINTER STREET CITY: WALTHAM STATE: MA ZIP: 02451 BUSINESS PHONE: 6174983300 MAIL ADDRESS: STREET 1: 1100 WINTER STREET CITY: WALTHAM STATE: MA ZIP: 02451 FORMER COMPANY: FORMER CONFORMED NAME: ADVANCED MAGNETICS INC DATE OF NAME CHANGE: 19920703 FILED BY: COMPANY DATA: COMPANY CONFORMED NAME: Palo Alto Investors, LLC CENTRAL INDEX KEY: 0001306923 IRS NUMBER: 770558164 STATE OF INCORPORATION: CA FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: SC 13G/A BUSINESS ADDRESS: STREET 1: 470 UNIVERSITY AVE CITY: PALO ALTO STATE: CA ZIP: 94301 BUSINESS PHONE: 650-325-0772 MAIL ADDRESS: STREET 1: 470 UNIVERSITY AVE CITY: PALO ALTO STATE: CA ZIP: 94301 </SEC-HEADER> <DOCUMENT> <TYPE>SC 13G/A <SEQUENCE>1 <FILENAME>Amag_13G_a6.htm <DESCRIPTION>SC 13G/A <TEXT> Document 1 - file: Amag_13G_a6.htm
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