GREAT LAKES DREDGE & DOCK CO

Ticker: GLDD CUSIP: 390607109 Class: Common Stock

EAM Investors, LLC's Holding History (CIK: 0001510989)

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

Q1 2021

Shares 72,027 Value ($000) $1,050 Avg Close $14.58 Range $12.87 - $16.12

Q3 2019

Shares 89,796 Value ($000) $938 Avg Close $10.57 Range $9.39 - $11.81

Q2 2019

Shares 318,716 Value ($000) $3,519 Avg Close $10.32 Range $8.86 - $11.45

Q1 2019

Shares 177,713 Value ($000) $1,583 Avg Close $7.78 Range $6.43 - $9.21

Q4 2018

Shares 177,713 Value ($000) $1,176 Avg Close $6.52 Range $5.37 - $7.94

Period	Shares	Value ($000)	Average Close	Price Range
Q1 2021	72,027	$1,050	$14.58	$12.87 - $16.12
Q3 2019	89,796	$938	$10.57	$9.39 - $11.81
Q2 2019	318,716	$3,519	$10.32	$8.86 - $11.45
Q1 2019	177,713	$1,583	$7.78	$6.43 - $9.21
Q4 2018	177,713	$1,176	$6.52	$5.37 - $7.94