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 Q3 2016?

85 institutional investors reported GLDD - Great Lakes Dredge & Dock Corp - Common Stock for Q3 2016. Use the holders table for investor-level position and value details.

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

CUSIP: 390607109

Q3 2016 13F Holders as of 30 Sep 2016

Security type / class: Equity / Common Stock
Total 13F shares: 47,378,954
Total 13F value: $165,803,544
Share change: -1,624,660
Put/Call ratio: 70%
SEC-reported price per share: $3.50
Number of holders: 85
Value change: -$7,192,756
Number of buys: 41
Number of sells: 42
Shares outstanding: 66,399,451

Security key

390607109

Report period

Q3 2016

Institutions

Top holders

GLDD full security history Ownership snapshot Full 13F holder table Great Lakes Dredge & Dock CORP SEC filings Great Lakes Dredge & Dock CORP company facts

Broader feeds

Latest 13F filings Latest 13D/G filings Investors directory

Ownership snapshot

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

Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.

Comparable stake leader

Boston Partners

Disclosed value leader

Boston Partners

Comparable rows

15/15

Latest evidence

30 Jun 2016

13F Lead comparable stake: 8.4% Showing 1-6 of 15 holder rows.

Quick read

Boston Partners leads the comparable SEC ownership view at 8.4%.

15 of 15 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.

Open SEC evidence Opens Boston Partners's linked filing trail.

Comparable ownership Top 5

Boston Partners 8.4%

DIMENSIONAL FUND ADVISORS LP 7.7%

JENNISON ASSOCIATES LLC 7.6%

WELLINGTON MANAGEMENT GROUP LLP 6.5%

RUTABAGA CAPITAL MANAGEMENT LLC/MA 4.2%

Ownership % is shown only when SEC disclosures are safely comparable across share classes.

Detailed SEC evidence table Showing 1-6 of 15 holder rows

Holder	Evidence	Ownership %	Position	12M Net Δ	As of
Boston Partners	13F Company 13F	8.4%	$24,456,000 5,609,210 shares	—	30 Jun 2016
DIMENSIONAL FUND ADVISORS LP	13F Company 13F	7.7%	$22,406,000 5,139,027 shares	—	30 Jun 2016
JENNISON ASSOCIATES LLC	13F Company 13F	7.6%	$22,042,000 5,055,589 shares	—	30 Jun 2016
WELLINGTON MANAGEMENT GROUP LLP	13F Company 13F	6.5%	$18,730,000 4,295,790 shares	—	30 Jun 2016
RUTABAGA CAPITAL MANAGEMENT LLC/MA	13F Company 13F	4.2%	$12,151,000 2,786,976 shares	—	30 Jun 2016
Walthausen & Co., LLC	13F Company 13F	3.5%	$10,049,000 2,304,816 shares	—	30 Jun 2016

How to read this table

Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.

13F holder rows

Institutional holders as of Q3 2016

Investor-level positions for this CUSIP, loaded as an interactive table.

Institutions

47,378,954

Rows available

Investor	Option	Weight %	Change %	SEC-reported value	* Price	Shares	Share Change	Activity	Report Period

^* SEC-reported price is the security price as of the portfolio date and can indicate the last known price at which the security was still held. The marker flags a reported price that did not pass the local price check.

Compare Q3 2016 vs Q2 2016 Across Filers

Q2 2016 holders

Q3 2016 holders

Holder diff

-5

Investor	Q2 2016 Shares	Q3 2016 Shares	Share Diff	Share Chg %	Q2 2016 value	Q3 2016 value	Value change	Value Chg %