SEATTLE GENETICS INC

CUSIP: 812578102 Class: COM

SPHERA FUNDS MANAGEMENT LTD.'s Holding History (CIK: 0001496201)

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

Q2 2017
Shares 36,000 Value ($000) $1,863 Avg Close — Range —
Q1 2017
Shares 36,000 Value ($000) $2,263 Avg Close — Range —
Q4 2015
Shares 70,000 Value ($000) $3,142 Avg Close — Range —
Q3 2015
Shares 50,000 Value ($000) $1,928 Avg Close — Range —
Q2 2015
Shares 140,000 Value ($000) $6,776 Avg Close — Range —
Q1 2015
Shares 200,000 Value ($000) $7,070 Avg Close — Range —
Q3 2014
Shares 155,360 Value ($000) $5,776 Avg Close — Range —
Q2 2014
Shares 297,800 Value ($000) $11,391 Avg Close — Range —
Q1 2014
Shares 127,800 Value ($000) $5,823 Avg Close — Range —
Q4 2013
Shares 122,800 Value ($000) $4,898 Avg Close — Range —