SEAGEN INC

CUSIP: 81181C104 Class: Common Stock

EcoR1 Capital, LLC's Holding History (CIK: 0001587114)

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

Q3 2022
Shares 285,793 Value ($000) $39,105 Avg Close — Range —
Q2 2022
Shares 1,008,628 Value ($000) $178,467 Avg Close — Range —