SEATTLE GENETICS INC

CUSIP: 812578102 Class: COM

NBT BANK N A /NY's Holding History (CIK: 0000898413)

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

Q1 2018
Shares 4,241 Value ($000) $222 Avg Close — Range —
Q4 2017
Shares 6,241 Value ($000) $334 Avg Close — Range —
Q3 2017
Shares 15,844 Value ($000) $862 Avg Close — Range —
Q2 2017
Shares 18,770 Value ($000) $971 Avg Close — Range —
Q1 2017
Shares 16,800 Value ($000) $1,056 Avg Close — Range —