GREAT LAKES DREDGE & DOCK CO

Ticker: GLDD CUSIP: 390607109 Class: Common Stock

Semanteon Capital Management, LP's Holding History (CIK: 0001738809)

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

Q3 2025

Shares 47,420 Value ($000) $569 Avg Close $11.59 Range $10.37 - $12.56

Q1 2025

Shares 48,011 Value ($000) $418 Avg Close $9.98 Range $7.58 - $12.54

Q4 2024

Shares 11,535 Value ($000) $130 Avg Close $11.96 Range $10.25 - $12.89

Q1 2024

Shares 40,699 Value ($000) $356 Avg Close $8.23 Range $7.01 - $9.78

Period	Shares	Value ($000)	Average Close	Price Range
Q3 2025	47,420	$569	$11.59	$10.37 - $12.56
Q1 2025	48,011	$418	$9.98	$7.58 - $12.54
Q4 2024	11,535	$130	$11.96	$10.25 - $12.89
Q1 2024	40,699	$356	$8.23	$7.01 - $9.78