Form 4 - Statement of changes in beneficial ownership of securities:
SEC Accession No. 0001638599-16-000742
Filing Date
2016-03-11
Accepted
2016-03-11 18:13:26
Documents
1
Period of Report
2016-03-09

Document Format Files

Seq Description Document Type Size
1 PRIMARY DOCUMENT doc4_3784.html 4  
1 PRIMARY DOCUMENT doc4_3784.xml 4 45060
  Complete submission text file 0001638599-16-000742.txt   49169
Mailing Address 21823 30TH DRIVE SE SUITE BOTHELL WA 98021
Business Address 21823 30TH DRIVE SE SUITE BOTHELL WA 98021 4255274000
SEATTLE GENETICS INC /WA (Issuer) CIK: 0001060736 (see all company filings)

EIN.: 911874389 | State of Incorp.: DE | Fiscal Year End: 1231
SIC: 2836 Biological Products, (No Diagnostic Substances)

Mailing Address BAKER BROTHERS ADVISORS 667 MADISON AVENUE, 21ST FLOOR NEW YORK NY 10065
Business Address
BAKER JULIAN (Reporting) CIK: 0001087939 (see all company filings)

Type: 4 | Act: 34 | File No.: 000-32405 | Film No.: 161502100

Mailing Address BAKER BROTHERS ADVISORS 667 MADISON AVENUE, 21ST FLOOR NEW YORK NY 10065
Business Address
BAKER FELIX (Reporting) CIK: 0001087940 (see all company filings)

Type: 4 | Act: 34 | File No.: 000-32405 | Film No.: 161502101

Mailing Address 667 MADISON AVE 21ST FLOOR NEW YORK NY 10065
Business Address 667 MADISON AVE 21ST FLOOR NEW YORK NY 10065 2123395600
BAKER BROS. ADVISORS LP (Reporting) CIK: 0001263508 (see all company filings)

State of Incorp.: DE | Fiscal Year End: 1231
Type: 4 | Act: 34 | File No.: 000-32405 | Film No.: 161502098

Mailing Address 667 MADISON AVENUE 21ST FLOOR NEW YORK NY 10065
Business Address 667 MADISON AVENUE 21ST FLOOR NEW YORK NY 10065 212-339-5633
Baker Brothers Life Sciences LP (Reporting) CIK: 0001363364 (see all company filings)

State of Incorp.: DE | Fiscal Year End: 1231
Type: 4 | Act: 34 | File No.: 000-32405 | Film No.: 161502096

Mailing Address 667 MADISON AVE. 21ST FLOOR NEW YORK NY 10065
Business Address 667 MADISON AVE. 21ST FLOOR NEW YORK NY 10065 212-339-5600
667, L.P. (Reporting) CIK: 0001551139 (see all company filings)

State of Incorp.: DE | Fiscal Year End: 1231
Type: 4 | Act: 34 | File No.: 000-32405 | Film No.: 161502097

Mailing Address 667 MADISON AVENUE 21ST FLOOR NEW YORK NY 10065
Business Address 667 MADISON AVENUE 21ST FLOOR NEW YORK NY 10065 (212)339-5600
Baker Bros. Advisors (GP) LLC (Reporting) CIK: 0001580575 (see all company filings)

State of Incorp.: E9 | Fiscal Year End: 1231
Type: 4 | Act: 34 | File No.: 000-32405 | Film No.: 161502099