NATUS MEDICAL INC DEL

CUSIP: 639050103 Class: COM

ALTA CAPITAL MANAGEMENT LLC/'s Holding History (CIK: 0001093589)

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

Q3 2014
Shares 9,125 Value ($000) $269 Avg Close — Range —
Q2 2014
Shares 9,665 Value ($000) $242 Avg Close — Range —
Q1 2014
Shares 9,550 Value ($000) $246 Avg Close — Range —
Q4 2013
Shares 10,190 Value ($000) $229 Avg Close — Range —