NATUS MEDICAL INC DEL

CUSIP: 639050103 Class: COM

EVENTIDE ASSET MANAGEMENT, LLC's Holding History (CIK: 0001442891)

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

Q4 2017
Shares 75,000 Value ($000) $2,865 Avg Close — Range —
Q3 2017
Shares 75,000 Value ($000) $2,813 Avg Close — Range —
Q2 2017
Shares 75,000 Value ($000) $2,798 Avg Close — Range —
Q1 2017
Shares 75,000 Value ($000) $2,944 Avg Close — Range —
Q4 2016
Shares 75,000 Value ($000) $2,610 Avg Close — Range —
Q3 2016
Shares 75,000 Value ($000) $2,947 Avg Close — Range —
Q2 2016
Shares 75,000 Value ($000) $2,835 Avg Close — Range —
Q1 2016
Shares 75,000 Value ($000) $2,882 Avg Close — Range —
Q4 2015
Shares 148,900 Value ($000) $7,155 Avg Close — Range —
Q3 2015
Shares 136,000 Value ($000) $5,365 Avg Close — Range —
Q2 2015
Shares 75,000 Value ($000) $3,192 Avg Close — Range —
Q1 2015
Shares 75,000 Value ($000) $2,960 Avg Close — Range —
Q4 2014
Shares 75,000 Value ($000) $2,703 Avg Close — Range —
Q3 2014
Shares 75,000 Value ($000) $2,213 Avg Close — Range —
Q2 2014
Shares 75,000 Value ($000) $1,886 Avg Close — Range —
Q1 2014
Shares 71,100 Value ($000) $1,834 Avg Close — Range —
Q4 2013
Shares 30,800 Value ($000) $693 Avg Close — Range —