GREAT LAKES DREDGE & DOCK CO

Ticker: GLDD CUSIP: 390607109 Class: Common Stock

Sigma Planning Corp's Holding History (CIK: 0001449126)

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

Q3 2020

Shares 14,723 Value ($000) $140 Avg Close $9.17 Range $8.17 - $10.57

Period	Shares	Value ($000)	Average Close	Price Range
Q3 2020	14,723	$140	$9.17	$8.17 - $10.57