GLDD

Great Lakes Dredge & Dock CORP

Heavy Construction Other Than Bldg Const - ContractorsNasdaqAccelerated filer

Total Trades

Buys

Sells

Largest Trade

$1M+

Insiders

Institutional Funds

176

Inst. Value

$1M+

Activist Filings

Insider Trades

Insider	Title	Type	Value	Shares	Price	Date
JOHANSON DAVID	SVP-Project Acquis…	SELL	$15K–$50K	2K	$13.96	Dec 12, 2025
JOHANSON DAVID	SVP-Project Acquis…	SELL	$100K–$500K	10K	$13.02	Dec 4, 2025
Steger Ronald	Director	SELL	$50K–$100K	5K	$11.59	Jun 4, 2025
BEYKO ELENI	SVP - Offshore Ene…	SELL	$100K–$500K	23K	$10.26	May 8, 2025
DICKERSON LAWRENCE R	Director	SELL	$100K–$500K	16K	$12.04	Nov 15, 2024
DICKERSON LAWRENCE R	Director	SELL	$50K–$100K	5K	$12.61	Nov 13, 2024
Shanahan Kathleen M	Director	SELL	$100K–$500K	23K	$12.63	Nov 12, 2024
Steger Ronald	Director	SELL	$100K–$500K	12K	$12.76	Nov 12, 2024
Petterson Lasse	CEO & President	SELL	$500K+	75K	$9.14	Aug 26, 2024
Petterson Lasse	CEO & President	SELL	$500K+	64K	$9.07	Aug 21, 2024
Petterson Lasse	CEO & President	SELL	$1M+	111K	$9.09	Aug 19, 2024
Levenson Ryan	Director	BUY	$500K+	134K	$6.81	May 19, 2023
Levenson Ryan	Director	BUY	$100K–$500K	68K	$6.10	May 15, 2023
Levenson Ryan	Director	BUY	$500K+	132K	$6.09	May 12, 2023
Shipp Earl L	Director	BUY	$1K–$15K	2K	$5.51	Mar 3, 2023
Petterson Lasse	CEO & President	BUY	$50K–$100K	10K	$9.65	Aug 5, 2022
Simonelli David E	COO	SELL	$100K–$500K	18K	$14.12	May 11, 2022
HANSON WILLIAM H	SVP	EXERCISE	$1K–$15K	2K	$6.45	Mar 3, 2022
HANSON WILLIAM H	SVP	SELL	$15K–$50K	1K	$14.06	Mar 3, 2022

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13F filings as of Dec 31, 2025 · 176 funds holding

Fund	Shares	Value	Type
DIMENSIONAL FUND ADVISORS LP	4.1M	$1M+	SH
JENNISON ASSOCIATES LLC	3.0M	$1M+	SH
AMERICAN CENTURY COMPANIES INC	2.6M	$1M+	SH
STATE STREET CORP	1.6M	$1M+	SH
GEODE CAPITAL MANAGEMENT, LLC	1.4M	$1M+	SH
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP	796K	$1M+	SH
BNP PARIBAS FINANCIAL MARKETS	589K	$1M+	SH
PRESCOTT GROUP CAPITAL MANAGEMENT, L.L.C.	577K	$1M+	SH
CHARLES SCHWAB INVESTMENT MANAGEMENT INC	554K	$1M+	SH
Connor, Clark & Lunn Investment Management Ltd.	454K	$1M+	SH
Minerva Advisors LLC	432K	$1M+	SH
CASTLEKEEP INVESTMENT ADVISORS LLC	428K	$1M+	SH
CenterBook Partners LP	411K	$1M+	SH
GOLDMAN SACHS GROUP INC	384K	$1M+	SH
Squarepoint Ops LLC	383K	$1M+	SH
Simcoe Capital LLC	378K	$1M+	SH
Point72 Asset Management, L.P.	344K	$1M+	SH
Sanctuary Advisors, LLC	329K	$1M+	SH
Empowered Funds, LLC	312K	$1M+	SH
ESSEX INVESTMENT MANAGEMENT CO LLC	302K	$1M+	SH