NANOSTRING TECHNOLOGIES INC

CUSIP: 63009R109 Class: Common Stock

DEERFIELD MANAGEMENT COMPANY, L.P.'s Holding History (CIK: 0001009258)

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

Q1 2017
Shares 352,375 Value ($000) $7,002 Avg Close — Range —
Q4 2016
Shares 139,000 Value ($000) $3,100 Avg Close — Range —
Q3 2016
Shares 226,691 Value ($000) $4,529 Avg Close — Range —
Q2 2016
Shares 674,622 Value ($000) $8,500 Avg Close — Range —
Q1 2016
Shares 606,222 Value ($000) $9,227 Avg Close — Range —
Q4 2015
Shares 880,622 Value ($000) $12,954 Avg Close — Range —
Q3 2015
Shares 880,622 Value ($000) $14,090 Avg Close — Range —
Q2 2015
Shares 1,232,696 Value ($000) $19,008 Avg Close — Range —
Q1 2015
Shares 1,460,652 Value ($000) $14,884 Avg Close — Range —
Q4 2014
Shares 923,378 Value ($000) $12,863 Avg Close — Range —
Q3 2014
Shares 1,003,974 Value ($000) $10,983 Avg Close — Range —
Q2 2014
Shares 454,281 Value ($000) $6,792 Avg Close — Range —
Q1 2014
Shares 391,105 Value ($000) $8,076 Avg Close — Range —
Q4 2013
Shares 624,711 Value ($000) $10,770 Avg Close — Range —
Q3 2013
Shares 496,650 Value ($000) $5,463 Avg Close — Range —