Form 4 - Statement of changes in beneficial ownership of securities:
SEC Accession No. 0001638599-16-000923
Filing Date
2016-05-24
Accepted
2016-05-24 17:50:19
Documents
1
Period of Report
2016-05-20

Document Format Files

Seq Description Document Type Size
1 PRIMARY DOCUMENT doc4_3975.html 4  
1 PRIMARY DOCUMENT doc4_3975.xml 4 24554
  Complete submission text file 0001638599-16-000923.txt   28663
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.: 161672913

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.: 161672915

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.: 161672911

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.: 161672910

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.: 161672914

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.: 161672912