SEATTLE GENETICS INC

CUSIP: 812578102 Class: COM

BROWN BROTHERS HARRIMAN & CO's Holding History (CIK: 0000014661)

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

Q4 2017
Shares 479 Value ($000) $26 Avg Close — Range —
Q2 2017
Shares 3,000 Value ($000) $155 Avg Close — Range —
Q1 2017
Shares 3,000 Value ($000) $189 Avg Close — Range —