SEAGEN INC

CUSIP: 81181C104 Class: Common Stock

MASSACHUSETTS FINANCIAL SERVICES CO /MA/'s Holding History (CIK: 0000912938)

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

Q1 2021
Shares 1,557,022 Value ($000) $216,209 Avg Close — Range —
Q4 2020
Shares 2,259,959 Value ($000) $395,809 Avg Close — Range —