SEATTLE GENETICS INC

CUSIP: 812578102 Class: COM

PRICE T ROWE ASSOCIATES INC /MD/'s Holding History (CIK: 0000080255)

Note: Option positions (PUT/CALL) are excluded.

Q3 2020
Shares 8,937,962 Value ($000) $1,749,070 Avg Close — Range —
Q2 2020
Shares 9,214,128 Value ($000) $1,565,665 Avg Close — Range —
Q1 2020
Shares 9,334,971 Value ($000) $1,077,069 Avg Close — Range —
Q4 2019
Shares 9,828,030 Value ($000) $1,122,951 Avg Close — Range —
Q3 2019
Shares 9,067,673 Value ($000) $774,379 Avg Close — Range —
Q2 2019
Shares 8,203,502 Value ($000) $567,764 Avg Close — Range —
Q1 2019
Shares 8,094,701 Value ($000) $592,856 Avg Close — Range —
Q4 2018
Shares 8,074,740 Value ($000) $457,515 Avg Close — Range —
Q3 2018
Shares 10,143,751 Value ($000) $782,286 Avg Close — Range —
Q2 2018
Shares 10,571,099 Value ($000) $701,815 Avg Close — Range —
Q1 2018
Shares 9,731,991 Value ($000) $509,372 Avg Close — Range —
Q4 2017
Shares 7,798,646 Value ($000) $417,228 Avg Close — Range —
Q3 2017
Shares 3,542,628 Value ($000) $192,754 Avg Close — Range —
Q2 2017
Shares 3,845,518 Value ($000) $198,967 Avg Close — Range —
Q1 2017
Shares 3,766,728 Value ($000) $236,777 Avg Close — Range —
Q4 2016
Shares 3,564,006 Value ($000) $188,073 Avg Close — Range —
Q3 2016
Shares 4,752,993 Value ($000) $256,709 Avg Close — Range —
Q2 2016
Shares 3,689,989 Value ($000) $149,112 Avg Close — Range —
Q1 2016
Shares 3,695,953 Value ($000) $129,691 Avg Close — Range —
Q4 2015
Shares 3,505,470 Value ($000) $157,325 Avg Close — Range —
Q3 2015
Shares 3,505,876 Value ($000) $135,187 Avg Close — Range —
Q2 2015
Shares 2,720,256 Value ($000) $131,660 Avg Close — Range —
Q1 2015
Shares 2,689,572 Value ($000) $95,076 Avg Close — Range —
Q4 2014
Shares 1,487,354 Value ($000) $47,789 Avg Close — Range —
Q3 2014
Shares 2,337,624 Value ($000) $86,913 Avg Close — Range —
Q2 2014
Shares 2,532,789 Value ($000) $96,879 Avg Close — Range —
Q1 2014
Shares 2,841,203 Value ($000) $129,445 Avg Close — Range —
Q4 2013
Shares 2,463,943 Value ($000) $98,287 Avg Close — Range —
Q3 2013
Shares 2,359,600 Value ($000) $103,421 Avg Close — Range —
Q2 2013
Shares 2,416,800 Value ($000) $76,033 Avg Close — Range —