NANOSTRING TECHNOLOGIES INC

CUSIP: 63009R109 Class: Common Stock

NEXT CENTURY GROWTH INVESTORS LLC's Holding History (CIK: 0001134007)

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

Q4 2014
Shares 330,456 Value ($000) $4,603 Avg Close — Range —
Q3 2014
Shares 281,730 Value ($000) $3,082 Avg Close — Range —
Q2 2014
Shares 287,465 Value ($000) $4,297 Avg Close — Range —
Q1 2014
Shares 332,100 Value ($000) $6,857 Avg Close — Range —