AIR METHODS CORP

CUSIP: 009128307 Class: COM PAR $.06

DIMENSIONAL FUND ADVISORS LP's Holding History (CIK: 0000354204)

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

Q1 2017
Shares 1,893,369 Value ($000) $81,415 Avg Close — Range —
Q4 2016
Shares 1,873,042 Value ($000) $59,656 Avg Close — Range —
Q3 2016
Shares 1,794,189 Value ($000) $56,499 Avg Close — Range —
Q2 2016
Shares 1,794,621 Value ($000) $64,301 Avg Close — Range —
Q1 2016
Shares 1,620,819 Value ($000) $58,706 Avg Close — Range —
Q4 2015
Shares 1,323,069 Value ($000) $55,476 Avg Close — Range —
Q3 2015
Shares 1,167,829 Value ($000) $39,812 Avg Close — Range —
Q2 2015
Shares 944,005 Value ($000) $39,026 Avg Close — Range —
Q1 2015
Shares 797,363 Value ($000) $37,149 Avg Close — Range —
Q4 2014
Shares 793,922 Value ($000) $34,957 Avg Close — Range —
Q3 2014
Shares 775,211 Value ($000) $43,064 Avg Close — Range —
Q2 2014
Shares 743,068 Value ($000) $38,380 Avg Close — Range —
Q1 2014
Shares 665,744 Value ($000) $35,571 Avg Close — Range —
Q4 2013
Shares 601,802 Value ($000) $35,103 Avg Close — Range —
Q3 2013
Shares 668,636 Value ($000) $28,484 Avg Close — Range —
Q2 2013
Shares 793,619 Value ($000) $26,889 Avg Close — Range —