GREAT LAKES DREDGE & DOCK CO

Ticker: GLDD CUSIP: 390607109 Class: Common Stock

BlueCrest Capital Management Ltd's Holding History (CIK: 0001610880)

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

Q2 2017

Shares 11,369 Value ($000) $49 Avg Close $4.36 Range $3.73 - $4.90

Period	Shares	Value ($000)	Average Close	Price Range
Q2 2017	11,369	$49	$4.36	$3.73 - $4.90