GREAT LAKES DREDGE & DOCK CO

Ticker: GLDD CUSIP: 390607109 Class: Common Stock

Campbell & CO Investment Adviser LLC's Holding History (CIK: 0001353570)

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

Q4 2025

Shares 76,705 Value ($000) $1,006 Avg Close $12.32 Range $10.71 - $14.02

Q3 2025

Shares 19,523 Value ($000) $234 Avg Close $11.59 Range $10.37 - $12.56

Q3 2022

Shares 48,435 Value ($000) $367 Avg Close $10.47 Range $7.57 - $13.17

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	76,705	$1,006	$12.32	$10.71 - $14.02
Q3 2025	19,523	$234	$11.59	$10.37 - $12.56
Q3 2022	48,435	$367	$10.47	$7.57 - $13.17