NATUS MEDICAL INC DEL

CUSIP: 639050103 Class: COM

Walleye Trading LLC's Holding History (CIK: 0001388391)

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

Q3 2019
Shares 10,126 Value ($000) $322 Avg Close — Range —
Q2 2019
Shares 13,965 Value ($000) $359 Avg Close — Range —
Q4 2015
Shares 15,103 Value ($000) $726 Avg Close — Range —