GREAT LAKES DREDGE & DOCK CO

Ticker: GLDD CUSIP: 390607109 Class: Common Stock

Parallax Volatility Advisers, L.P.'s Holding History (CIK: 0001521001)

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

Q2 2022
Shares 96,383 Value ($000) $1,264 Avg Close $14.19 Range $12.87 - $15.40
Q1 2022
Shares 108,800 Value ($000) $1,526 Avg Close $14.39 Range $13.24 - $16.27
Q4 2021
Shares 29,109 Value ($000) $458 Avg Close $15.22 Range $14.26 - $16.25
Q3 2021
Shares 32,762 Value ($000) $494 Avg Close $14.86 Range $13.50 - $15.96
Q2 2021
Shares 3,546 Value ($000) $52 Avg Close $14.77 Range $13.32 - $16.28
Q1 2021
Shares 49,551 Value ($000) $722 Avg Close $14.58 Range $12.87 - $16.12
Q4 2020
Shares 25,863 Value ($000) $341 Avg Close $11.20 Range $9.10 - $13.39
Q3 2020
Shares 20,135 Value ($000) $191 Avg Close $9.17 Range $8.17 - $10.57
Q1 2019
Shares 8,500 Value ($000) $76 Avg Close $7.78 Range $6.43 - $9.21
Q4 2018
Shares 18,431 Value ($000) $122 Avg Close $6.52 Range $5.37 - $7.94
Q2 2018
Shares 18,740 Value ($000) $98 Avg Close $4.93 Range $4.38 - $5.45
Q4 2017
Shares 8,694 Value ($000) $47 Avg Close $5.09 Range $4.22 - $5.70