GREAT LAKES DREDGE & DOCK CO

Ticker: GLDD CUSIP: 390607109 Class: Common Stock

GLOBEFLEX CAPITAL L P's Holding History (CIK: 0000921531)

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

Q1 2021

Shares 57,837 Value ($000) $843 Avg Close $14.58 Range $12.87 - $16.12

Q4 2020

Shares 205,671 Value ($000) $2,709 Avg Close $11.20 Range $9.10 - $13.39

Q3 2020

Shares 198,739 Value ($000) $1,890 Avg Close $9.17 Range $8.17 - $10.57

Q2 2020

Shares 200,376 Value ($000) $1,855 Avg Close $8.75 Range $7.42 - $10.80

Q1 2020

Shares 157,989 Value ($000) $1,311 Avg Close $9.96 Range $6.75 - $11.96

Q4 2019

Shares 164,918 Value ($000) $1,869 Avg Close $10.68 Range $9.02 - $11.94

Q3 2019

Shares 147,358 Value ($000) $1,540 Avg Close $10.57 Range $9.39 - $11.81

Q2 2019

Shares 53,851 Value ($000) $595 Avg Close $10.32 Range $8.86 - $11.45

Q1 2019

Shares 290 Value ($000) $3 Avg Close $7.78 Range $6.43 - $9.21

Period	Shares	Value ($000)	Average Close	Price Range
Q1 2021	57,837	$843	$14.58	$12.87 - $16.12
Q4 2020	205,671	$2,709	$11.20	$9.10 - $13.39
Q3 2020	198,739	$1,890	$9.17	$8.17 - $10.57
Q2 2020	200,376	$1,855	$8.75	$7.42 - $10.80
Q1 2020	157,989	$1,311	$9.96	$6.75 - $11.96
Q4 2019	164,918	$1,869	$10.68	$9.02 - $11.94
Q3 2019	147,358	$1,540	$10.57	$9.39 - $11.81
Q2 2019	53,851	$595	$10.32	$8.86 - $11.45
Q1 2019	290	$3	$7.78	$6.43 - $9.21