AIR METHODS CORP

CUSIP: 009128307 Class: COM PAR $.06

ESSEX INVESTMENT MANAGEMENT CO LLC's Holding History (CIK: 0000201772)

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

Q1 2016
Shares 11,123 Value ($000) $403 Avg Close — Range —
Q4 2015
Shares 11,156 Value ($000) $468 Avg Close — Range —
Q3 2015
Shares 8,225 Value ($000) $280 Avg Close — Range —
Q2 2015
Shares 6,346 Value ($000) $262 Avg Close — Range —
Q1 2015
Shares 6,504 Value ($000) $303 Avg Close — Range —