AIR METHODS CORP

CUSIP: 009128307 Class: COM PAR $.06

NISA INVESTMENT ADVISORS, LLC's Holding History (CIK: 0000937615)

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

Q1 2017
Shares 270 Value ($000) $12 Avg Close — Range —
Q4 2016
Shares 500 Value ($000) $16 Avg Close — Range —
Q3 2016
Shares 5,500 Value ($000) $173 Avg Close — Range —
Q2 2016
Shares 500 Value ($000) $18 Avg Close — Range —
Q1 2016
Shares 10,500 Value ($000) $380 Avg Close — Range —