SEATTLE GENETICS INC

CUSIP: 812578102 Class: COM

WESTFIELD CAPITAL MANAGEMENT CO LP's Holding History (CIK: 0001177719)

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

Q3 2020
Shares 392,016 Value ($000) $76,714 Avg Close — Range —
Q2 2020
Shares 405,326 Value ($000) $68,873 Avg Close — Range —
Q1 2020
Shares 523,273 Value ($000) $60,375 Avg Close — Range —
Q1 2017
Shares 112,260 Value ($000) $7,057 Avg Close — Range —