GREAT LAKES DREDGE & DOCK CO

Ticker: GLDD CUSIP: 390607109 Class: Common Stock

Maven Securities LTD's Holding History (CIK: 0001633046)

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

Q1 2021

Shares 15,000 Value ($000) $209 Avg Close $14.58 Range $12.87 - $16.12

Period	Shares	Value ($000)	Average Close	Price Range
Q1 2021	15,000	$209	$14.58	$12.87 - $16.12