What does CUSIP 390607109 represent in this 13F holders report?

CUSIP 390607109 is the security identifier for GLDD - Great Lakes Dredge & Dock CORP - Common Stock used to aggregate holder disclosures.

How many institutions held GLDD - Great Lakes Dredge & Dock CORP - Common Stock in Q1 2018?

93 institutional investors reported GLDD - Great Lakes Dredge & Dock CORP - Common Stock for Q1 2018. Use the holders table for investor-level position and value details.

Great Lakes Dredge & Dock CORP - Common Stock (GLDD)

CUSIP: 390607109

Q1 2018 13F Holders as of 31 Mar 2018

Type / Class: Equity / Common Stock
Shares outstanding: 67,018,110
Total 13F shares: 48,559,259
Share change: +1,565,994
Total reported value: $223,314,104
Put/Call ratio: 185%
Price per share: $4.60
Number of holders: 93
Value change: +$6,170,833
Number of buys: 38
Number of sells: 49

Quarterly Holders Quick Answers

What is CUSIP 390607109?
CUSIP 390607109 identifies GLDD - Great Lakes Dredge & Dock CORP - Common Stock in SEC institutional holdings data.

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Open the full security ownership history page.

Related Filing Research

Latest 13F filings for newly reported positions.
Latest Schedule 13D/13G reports for ownership changes outside 13F cadence.
Latest 10-Q/10-K reports for financial context tied to this issuer.
Recent insider transactions for executive and insider activity.
SEC investors directory and top value investors for manager drilldown.
Back to full security ownership history.

Explore More Reporting Periods

Jump to adjacent filing periods for faster comparison and easier crawl discovery.

Newer quarter: Q2 2018
Previous quarter: Q4 2017

Recent filing periods for CUSIP 390607109:

Q1 2026 Q4 2025 Q3 2025 Q2 2025 Q1 2025 Q4 2024 Q3 2024 Q2 2024

Top shareholders of GLDD - Great Lakes Dredge & Dock CORP - Common Stock (13F + 13D/G + 3/4/5)

Grouped by holder across the latest SEC ownership disclosures. Ownership % is shown only when it is directly reported or safely comparable across share classes.

Methodology: rows are grouped by holder and ranked by the holder's primary source value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.

Holder	Source	Role / Reporting	Ownership %	Shares	Holdings Value	12M Net Δ	As of	Details
DIMENSIONAL FUND ADVISORS LP	13F	Company	7.8%	5,215,739	$28,165,000	—	31 Dec 2017	13F
JENNISON ASSOCIATES LLC	13F	Company	7.4%	4,941,042	$26,682,000	—	31 Dec 2017	13F
BlackRock Finance, Inc.	13F	Company	5.6%	3,772,579	$20,370,000	—	31 Dec 2017	13F
Russell Investments Group, Ltd.	13F	Company	5.3%	3,537,155	$19,099,000	—	31 Dec 2017	13F
Boston Partners	13F	Company	4%	2,666,042	$14,396,000	—	31 Dec 2017	13F
VANGUARD GROUP INC	13F	Company	3.9%	2,646,194	$14,290,000	—	31 Dec 2017	13F
Walthausen & Co., LLC	13F	Company	3.3%	2,219,001	$11,983,000	—	31 Dec 2017	13F
SEGALL BRYANT & HAMILL, LLC	13F	Company	2.9%	1,965,621	$10,614,000	—	31 Dec 2017	13F
PRIVATE MANAGEMENT GROUP INC	13F	Company	2.4%	1,594,044	$8,608,000	—	31 Dec 2017	13F
WYNNEFIELD CAPITAL INC	13F	Company	2.2%	1,495,000	$8,073,000	—	31 Dec 2017	13F
Moab Capital Partners LLC	13F	Company	1.9%	1,270,441	$6,860,000	—	31 Dec 2017	13F
Minerva Advisors LLC	13F	Company	1.7%	1,111,333	$6,001,000	—	31 Dec 2017	13F
STATE STREET CORP	13F	Company	1.5%	1,022,285	$5,525,000	—	31 Dec 2017	13F
ROYCE & ASSOCIATES LP	13F	Company	1.5%	1,020,794	$5,512,000	—	31 Dec 2017	13F
D. E. Shaw & Co., Inc.	13F	Company	1.2%	831,452	$4,489,000	—	31 Dec 2017	13F
PRESCOTT GROUP CAPITAL MANAGEMENT, L.L.C.	13F	Company	1.2%	781,227	$4,219,000	—	31 Dec 2017	13F
KENNEDY CAPITAL MANAGEMENT LLC	13F	Company	1%	692,914	$3,742,000	—	31 Dec 2017	13F
NORTHERN TRUST CORP	13F	Company	1%	670,076	$3,618,000	—	31 Dec 2017	13F
AMERIPRISE FINANCIAL INC	13F	Company	0.97%	650,475	$3,513,000	—	31 Dec 2017	13F
Bank of New York Mellon Corp	13F	Company	0.96%	641,158	$3,462,000	—	31 Dec 2017	13F
BRIDGEWAY CAPITAL MANAGEMENT, LLC	13F	Company	0.91%	607,450	$3,280,000	—	31 Dec 2017	13F
22NW, LP	13F	Company	0.81%	541,810	$2,926,000	—	31 Dec 2017	13F
GEODE CAPITAL MANAGEMENT, LLC	13F	Company	0.69%	460,841	$2,488,000	—	31 Dec 2017	13F
TCW GROUP INC	13F	Company	0.67%	448,343	$2,421,000	—	31 Dec 2017	13F
MORGAN STANLEY	13F	Company	0.64%	431,680	$2,331,000	—	31 Dec 2017	13F
Emancipation Management LLC	13F	Company	0.62%	414,285	$2,237,000	—	31 Dec 2017	13F
FULLER & THALER ASSET MANAGEMENT, INC.	13F	Company	0.59%	392,800	$2,121,000	—	31 Dec 2017	13F
CREDIT SUISSE AG/	13F	Company	0.56%	372,373	$2,011,000	—	31 Dec 2017	13F
DOHENY ASSET MANAGEMENT /CA	13F	Company	0.5%	333,500	$1,801,000	—	31 Dec 2017	13F
CALIFORNIA PUBLIC EMPLOYEES RETIREMENT SYSTEM	13F	Company	0.41%	276,778	$1,495,000	—	31 Dec 2017	13F
CHARLES SCHWAB INVESTMENT MANAGEMENT INC	13F	Company	0.4%	269,644	$1,457,000	—	31 Dec 2017	13F
GSA CAPITAL PARTNERS LLP	13F	Company	0.39%	263,217	$1,421,000	—	31 Dec 2017	13F
QUANTUM CAPITAL MANAGEMENT	13F	Company	0.37%	250,443	$1,352,000	—	31 Dec 2017	13F
Merion Investment Management LP	13F	Company	0.45%	302,262	$1,263,000	—	31 Dec 2017	13F
VICTORY CAPITAL MANAGEMENT INC	13F	Company	0.3%	203,800	$1,101,000	—	31 Dec 2017	13F
Invesco Ltd.	13F	Company	0.29%	192,536	$1,040,000	—	31 Dec 2017	13F
RAYMOND JAMES & ASSOCIATES	13F	Company	0.24%	158,074	$854,000	—	31 Dec 2017	13F
TIAA CREF INVESTMENT MANAGEMENT LLC	13F	Company	0.22%	146,925	$793,000	—	31 Dec 2017	13F
TWO SIGMA ADVISERS, LP	13F	Company	0.22%	144,767	$782,000	—	31 Dec 2017	13F
Crestline Management, LP	13F	Company	0.21%	143,435	$775,000	—	31 Dec 2017	13F
DEUTSCHE BANK AG\	13F	Company	0.19%	128,667	$693,000	—	31 Dec 2017	13F
TWO SIGMA INVESTMENTS, LP	13F	Company	0.19%	127,602	$689,000	—	31 Dec 2017	13F
BANK OF AMERICA CORP /DE/	13F	Company	0.19%	126,502	$683,000	—	31 Dec 2017	13F
FALCON POINT CAPITAL, LLC	13F	Company	0.18%	120,609	$651,000	—	31 Dec 2017	13F
TEACHERS ADVISORS, LLC	13F	Company	0.18%	119,298	$644,000	—	31 Dec 2017	13F
AWM Investment Company, Inc.	13F	Company	0.16%	109,391	$591,000	—	31 Dec 2017	13F
Swiss National Bank	13F	Company	0.15%	103,300	$558,000	—	31 Dec 2017	13F
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM	13F	Company	0.13%	89,549	$484,000	—	31 Dec 2017	13F
WELLS FARGO & COMPANY/MN	13F	Company	0.13%	89,404	$484,000	—	31 Dec 2017	13F
RENAISSANCE TECHNOLOGIES LLC	13F	Company	0.12%	77,200	$417,000	—	31 Dec 2017	13F

Institutional Holders of Great Lakes Dredge & Dock CORP - Common Stock (GLDD) as of Q1 2018

As of 31 Mar 2018, Great Lakes Dredge & Dock CORP - Common Stock (GLDD) was held by 93 institutional shareholders that filed Form 13F with the SEC. Together, they reported ownership of 48,559,259 shares. The largest 10 holders included DIMENSIONAL FUND ADVISORS LP, JENNISON ASSOCIATES LLC, Russell Investments Group, Ltd., BlackRock Inc., VANGUARD GROUP INC, SEGALL BRYANT & HAMILL, LLC, Boston Partners, Walthausen & Co., LLC, PRIVATE MANAGEMENT GROUP INC, and WYNNEFIELD CAPITAL INC. This page lists 93 institutional shareholders reporting positions in this security for the Q1 2018 filing period.

Investor	Option	Weight %	Change %	Value $	* Price	Shares	Share Change	Activity	Report Period

Compare Q1 2018 vs Q4 2017 Across Filers

Q4 2017 holders

Q1 2018 holders

Holder diff

-5

Investor	Q4 2017 Shares	Q1 2018 Shares	Share Diff	Share Chg %	Q4 2017 Value $	Q1 2018 Value $	Value Diff $	Value Chg %

Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).

Quarterly Holders Trend

Quarterly Value Trend

Quarterly Shares Trend

* Reported Price is the price of the security as of the portfolio date. This value is significant in that it is the last known price at which the security was still held.
An asterisk sign (*) next to the price indicates that the price is likely invalid.