AIR METHODS CORP

CUSIP: 009128307 Class: COM PAR $.06

MARSHALL WACE, LLP's Holding History (CIK: 0001318757)

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

Q4 2016
Shares 182,583 Value ($000) $5,815 Avg Close — Range —
Q3 2016
Shares 127,638 Value ($000) $4,019 Avg Close — Range —
Q2 2016
Shares 43,419 Value ($000) $1,556 Avg Close — Range —
Q1 2016
Shares 20,051 Value ($000) $726 Avg Close — Range —
Q1 2015
Shares 94,565 Value ($000) $4,406 Avg Close — Range —
Q4 2014
Shares 248,612 Value ($000) $10,946 Avg Close — Range —
Q3 2014
Shares 94,082 Value ($000) $5,226 Avg Close — Range —