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 Q2 2017?

93 institutional investors reported GLDD - Great Lakes Dredge & Dock CORP - Common Stock for Q2 2017. Use the holders table for investor-level position and value details.

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

CUSIP: 390607109

Q2 2017 13F Holders as of 30 Jun 2017

Type / Class: Equity / Common Stock
Shares outstanding: 66,399,451
Total 13F shares: 44,053,725
Share change: +487,462
Total reported value: $189,376,558
Price per share: $4.30
Number of holders: 93
Value change: +$2,126,040
Number of buys: 41
Number of sells: 40

Quarterly Holders Quick Answers

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

Need full ownership history?
Open the full security ownership history page.

Next holder-history checks

These links keep the next click tied to holder verification, nearby quarters, or outside-13F ownership context.

Back to full security ownership history for the broader multi-quarter picture.
Latest 13F filings for newly reported positions across managers.
Latest Schedule 13D/13G reports for ownership changes outside the 13F cadence.
SEC investors directory for manager drilldown.

Explore More Reporting Periods

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

Newer quarter: Q3 2017
Previous quarter: Q1 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.

No top shareholder records were found across 13F, 13D/G, and Forms 3/4/5 for this issuer.

Institutional Holders of Great Lakes Dredge & Dock CORP - Common Stock (GLDD) as of Q2 2017

As of 30 Jun 2017, 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 44,053,725 shares. The largest 10 holders included DIMENSIONAL FUND ADVISORS LP, JENNISON ASSOCIATES LLC, Boston Partners, BlackRock Inc., WELLINGTON MANAGEMENT GROUP LLP, VANGUARD GROUP INC, Walthausen & Co., LLC, Russell Investments Group, Ltd., SEGALL BRYANT & HAMILL, LLC, and Minerva Advisors LLC. This page lists 93 institutional shareholders reporting positions in this security for the Q2 2017 filing period.

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

Compare Q2 2017 vs Q1 2017 Across Filers

Q1 2017 holders

Q2 2017 holders

Holder diff

Investor	Q1 2017 Shares	Q2 2017 Shares	Share Diff	Share Chg %	Q1 2017 Value $	Q2 2017 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.