GREAT LAKES DREDGE & DOCK CO

Ticker: GLDD CUSIP: 390607109 Class: Common Stock

Summit Global Investments's Holding History (CIK: 0001697953)

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

Q2 2021

Shares 19,600 Value ($000) $286 Avg Close $14.77 Range $13.32 - $16.28

Q1 2021

Shares 28,700 Value ($000) $418 Avg Close $14.58 Range $12.87 - $16.12

Q4 2020

Shares 39,000 Value ($000) $514 Avg Close $11.20 Range $9.10 - $13.39

Q3 2020

Shares 37,200 Value ($000) $354 Avg Close $9.17 Range $8.17 - $10.57

Q2 2020

Shares 39,200 Value ($000) $363 Avg Close $8.75 Range $7.42 - $10.80

Q1 2020

Shares 70,700 Value ($000) $587 Avg Close $9.96 Range $6.75 - $11.96

Q4 2019

Shares 68,100 Value ($000) $772 Avg Close $10.68 Range $9.02 - $11.94

Period	Shares	Value ($000)	Average Close	Price Range
Q2 2021	19,600	$286	$14.77	$13.32 - $16.28
Q1 2021	28,700	$418	$14.58	$12.87 - $16.12
Q4 2020	39,000	$514	$11.20	$9.10 - $13.39
Q3 2020	37,200	$354	$9.17	$8.17 - $10.57
Q2 2020	39,200	$363	$8.75	$7.42 - $10.80
Q1 2020	70,700	$587	$9.96	$6.75 - $11.96
Q4 2019	68,100	$772	$10.68	$9.02 - $11.94