NAVIGATORS GROUP INC

CUSIP: 638904102 Class: COM

MARSHALL WACE, LLP's Holding History (CIK: 0001318757)

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

Q3 2018
Shares 115,472 Value ($000) $7,979 Avg Close — Range —
Q1 2018
Shares 5,000 Value ($000) $288 Avg Close — Range —