GREAT LAKES DREDGE & DOCK CO

Ticker: GLDD CUSIP: 390607109 Class: Common Stock

SIMPLEX TRADING, LLC's Holding History (CIK: 0001488542)

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

Q1 2025
Shares 17,349 Value ($000) $0 Avg Close $9.98 Range $7.58 - $12.54
Q4 2023
Shares 22,533 Value ($000) $0 Avg Close $7.28 Range $6.12 - $8.28
Q3 2023
Shares 22,714 Value ($000) $0 Avg Close $8.29 Range $7.53 - $9.67
Q1 2023
Shares 1,159 Value ($000) $0 Avg Close $5.99 Range $4.75 - $7.10
Q4 2022
Shares 2,573 Value ($000) $0 Avg Close $7.03 Range $5.52 - $8.25
Q2 2022
Shares 11,084 Value ($000) $145 Avg Close $14.19 Range $12.87 - $15.40
Q1 2022
Shares 3,338 Value ($000) $46 Avg Close $14.39 Range $13.24 - $16.27
Q4 2021
Shares 8,680 Value ($000) $136 Avg Close $15.22 Range $14.26 - $16.25
Q3 2021
Shares 7,893 Value ($000) $115 Avg Close $14.86 Range $13.50 - $15.96
Q2 2021
Shares 8,793 Value ($000) $128 Avg Close $14.77 Range $13.32 - $16.28
Q1 2021
Shares 4,852 Value ($000) $0 Avg Close $14.58 Range $12.87 - $16.12
Q2 2020
Shares 15,845 Value ($000) $146 Avg Close $8.75 Range $7.42 - $10.80
Q1 2020
Shares 41,793 Value ($000) $346 Avg Close $9.96 Range $6.75 - $11.96
Q2 2019
Shares 1,488 Value ($000) $16 Avg Close $10.32 Range $8.86 - $11.45
Q4 2018
Shares 10,440 Value ($000) $69 Avg Close $6.52 Range $5.37 - $7.94
Q3 2018
Shares 17,325 Value ($000) $107 Avg Close $5.57 Range $4.85 - $6.20
Q2 2018
Shares 24,128 Value ($000) $126 Avg Close $4.93 Range $4.38 - $5.45
Q1 2018
Shares 28,903 Value ($000) $132 Avg Close $4.74 Range $4.15 - $5.50
Q3 2017
Shares 420 Value ($000) $2 Avg Close $4.17 Range $3.60 - $5.15
Q4 2016
Shares 12,027 Value ($000) $50 Avg Close $4.06 Range $3.05 - $5.00
Q2 2016
Shares 3,292 Value ($000) $14 Avg Close $4.50 Range $3.96 - $5.09
Q3 2015
Shares 34 Value ($000) $0 Avg Close $5.48 Range $5.00 - $6.17
Q2 2015
Shares 501 Value ($000) $2 Avg Close $5.87 Range $5.33 - $6.30
Q1 2015
Shares 633 Value ($000) $3 Avg Close $7.05 Range $5.53 - $8.64