SEATTLE GENETICS INC

CUSIP: 812578102 Class: COM

WELLINGTON MANAGEMENT GROUP LLP's Holding History (CIK: 0000902219)

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

Q3 2020
Shares 5,745,112 Value ($000) $1,124,261 Avg Close — Range —
Q2 2020
Shares 5,658,675 Value ($000) $961,522 Avg Close — Range —
Q1 2020
Shares 8,064,014 Value ($000) $930,428 Avg Close — Range —
Q4 2019
Shares 10,307,338 Value ($000) $1,177,717 Avg Close — Range —
Q3 2019
Shares 15,874,659 Value ($000) $1,355,696 Avg Close — Range —
Q2 2019
Shares 14,377,983 Value ($000) $995,101 Avg Close — Range —
Q1 2019
Shares 14,728,336 Value ($000) $1,078,703 Avg Close — Range —
Q4 2018
Shares 15,138,967 Value ($000) $857,774 Avg Close — Range —
Q3 2018
Shares 11,320,692 Value ($000) $873,051 Avg Close — Range —
Q2 2018
Shares 10,408,424 Value ($000) $691,016 Avg Close — Range —
Q1 2018
Shares 9,898,292 Value ($000) $518,077 Avg Close — Range —
Q4 2017
Shares 115,103 Value ($000) $6,158 Avg Close — Range —
Q3 2017
Shares 115,263 Value ($000) $6,271 Avg Close — Range —
Q2 2017
Shares 105,718 Value ($000) $5,470 Avg Close — Range —
Q1 2017
Shares 82,463 Value ($000) $5,184 Avg Close — Range —
Q4 2016
Shares 53,043 Value ($000) $2,799 Avg Close — Range —
Q3 2016
Shares 58,703 Value ($000) $3,171 Avg Close — Range —
Q2 2016
Shares 59,150 Value ($000) $2,390 Avg Close — Range —
Q1 2016
Shares 59,553 Value ($000) $2,090 Avg Close — Range —
Q4 2015
Shares 781,199 Value ($000) $35,061 Avg Close — Range —
Q3 2015
Shares 934,572 Value ($000) $36,039 Avg Close — Range —
Q2 2015
Shares 865,627 Value ($000) $41,897 Avg Close — Range —
Q1 2015
Shares 651,898 Value ($000) $23,045 Avg Close — Range —
Q4 2014
Shares 609,562 Value ($000) $19,585 Avg Close — Range —
Q3 2014
Shares 2,655,747 Value ($000) $98,741 Avg Close — Range —
Q2 2014
Shares 2,382,028 Value ($000) $91,114 Avg Close — Range —
Q1 2014
Shares 2,953,577 Value ($000) $134,565 Avg Close — Range —
Q4 2013
Shares 2,987,124 Value ($000) $119,157 Avg Close — Range —
Q3 2013
Shares 4,043,379 Value ($000) $177,221 Avg Close — Range —
Q2 2013
Shares 4,186,002 Value ($000) $131,692 Avg Close — Range —