NATUS MEDICAL INC DEL

CUSIP: 639050103 Class: COM

VIRGINIA RETIREMENT SYSTEMS ET AL's Holding History (CIK: 0001005354)

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

Q4 2017
Shares 19,400 Value ($000) $741 Avg Close — Range —
Q3 2017
Shares 36,200 Value ($000) $1,358 Avg Close — Range —
Q2 2017
Shares 26,900 Value ($000) $1,003 Avg Close — Range —
Q1 2017
Shares 12,100 Value ($000) $475 Avg Close — Range —
Q4 2016
Shares 18,000 Value ($000) $626 Avg Close — Range —