-----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, PtYTcKuVbPZ8yGCeSQtX0rkqVCbxuGDV2lcUcvUyoBwmTU7LB7hybRXYQlaOL1E3 k/02Y/dEOYuBzoeK+ffzGQ== 0001144204-10-024396.txt : 20100504 0001144204-10-024396.hdr.sgml : 20100504 20100504205152 ACCESSION NUMBER: 0001144204-10-024396 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20090811 FILED AS OF DATE: 20100504 DATE AS OF CHANGE: 20100504 ISSUER: COMPANY DATA: COMPANY CONFORMED NAME: SEATTLE GENETICS INC /WA CENTRAL INDEX KEY: 0001060736 STANDARD INDUSTRIAL CLASSIFICATION: BIOLOGICAL PRODUCTS (NO DIAGNOSTIC SUBSTANCES) [2836] IRS NUMBER: 911874389 STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 BUSINESS ADDRESS: STREET 1: 21823 30TH DRIVE SE STREET 2: SUITE CITY: BOTHELL STATE: WA ZIP: 98021 BUSINESS PHONE: 4255274000 MAIL ADDRESS: STREET 1: 21823 30TH DRIVE SE STREET 2: SUITE CITY: BOTHELL STATE: WA ZIP: 98021 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: BAKER JULIAN CENTRAL INDEX KEY: 0001087939 FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 000-32405 FILM NUMBER: 10799034 MAIL ADDRESS: STREET 1: BAKER BROTHERS ADVISORS STREET 2: 667 MADISON AVENUE CITY: NEW YORK STATE: NY ZIP: 10021 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: BAKER FELIX CENTRAL INDEX KEY: 0001087940 FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 000-32405 FILM NUMBER: 10799036 MAIL ADDRESS: STREET 1: BAKER BROTHERS ADVISORS STREET 2: 667 MADISON AVENUE CITY: NEW YORK STATE: NY ZIP: 10021 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: Baker Bros. Capital (GP), LLC CENTRAL INDEX KEY: 0001244390 STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 000-32405 FILM NUMBER: 10799035 BUSINESS ADDRESS: STREET 1: 667 MADISON AVE 17TH FLOOR CITY: NEW YORK STATE: NY ZIP: 10065 BUSINESS PHONE: 212-339-5600 MAIL ADDRESS: STREET 1: 667 MADISON AVE 17TH FLOOR CITY: NEW YORK STATE: NY ZIP: 10065 FORMER NAME: FORMER CONFORMED NAME: BAKER BROS CAPITAL GP LLC DATE OF NAME CHANGE: 20030619 4 1 form431638_050410205135-.xml X0303 4 2009-08-11 0 0001060736 SEATTLE GENETICS INC /WA SGEN 0001244390 Baker Bros. Capital (GP), LLC 667 MADISON AVENUE 17TH FLOOR NEW YORK NY US 10021 1 0 1 0 0001087939 BAKER JULIAN 667 MADISON AVENUE, 17TH FLOOR NEW YORK NY US 10021 1 0 1 0 0001087940 BAKER FELIX 667 MADISON AVENUE, 17TH FLOOR NEW YORK NY US 10021 1 0 1 0 Common Stock 2009-08-11 4 P 0 798 10.75 A 481890 I Through Partnership In addition to Baker Bros. Capital (GP), LLC, this Form 4 is being filed jointly by Felix J. Baker and Julian C. Baker, each of whom has the same business address as Baker Bros. Capital (GP), LLC and may be deemed to have a pecuniary interest in securities owned by it. Felix J. Baker is a director of the Issuer. Because of certain relationships with other security holders of the Issuer, the Reporting Persons are filing solely for informational purposes as if they were members of a group with such security holders. (Continued in footnote 2). However, the Reporting Persons disclaim that they and any other person or persons, in fact constitute a "group" for purposes of Section 13(d)(3) of the Securities Exchange Act of 1934, as amended, or Rule 13d-5 thereunder or that they are the beneficial owners of securities owned by any such other persons, and each of them disclaims beneficial ownership of securities reported herein except to the extent of their pecuniary interest, if any, therein. Represents shares of common stock acquired by Baker Bros. Investments II, L.P. Represents shares 233,020 shares owned directly by Baker Bros. Investments, L.P. and 248,870 shares owned directly by Baker Bros. Investments II, L.P., limited partnerships of which the sole general partner is Baker Bros. Capital, L.P., a limited partnership of which the sole general partner is Baker Bros. Capital (GP), LLC. Felix J. Baker and Julian C. Baker are controlling members of Baker Bros. Capital (GP), LLC. /s/ Julian C. Baker, as Managing Member of Baker Bros. Capital (GP), LLC 2010-05-04 /s/ Julian C. Baker 2010-05-04 /s/ Felix J. Baker 2010-05-04 -----END PRIVACY-ENHANCED MESSAGE-----