NATUS MEDICAL INC DEL

CUSIP: 639050103 Class: COM

Robeco Institutional Asset Management B.V.'s Holding History (CIK: 0001418773)

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

Q1 2015
Shares 21,400 Value ($000) $844 Avg Close — Range —
Q4 2014
Shares 21,400 Value ($000) $771 Avg Close — Range —
Q3 2014
Shares 21,400 Value ($000) $632 Avg Close — Range —
Q2 2014
Shares 22,473 Value ($000) $565 Avg Close — Range —