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GREAT LAKES DREDGE & DOCK CO
GREAT LAKES DREDGE & DOCK CO. Institutional holdings reported to the SEC.

Institutional Holders (2015Q1)
Portfolio Summary: 109 Institutional holders with a total value of $315,011,558.
#
Manager Name
Shares
Value ($)
%
Options
Notes
1 JENNISON ASSOCIATES LLC 5,478,900 32,928,000 10.45%
2 DIMENSIONAL FUND ADVISORS LP 5,056,769 30,391,000 9.65%
3 Boston Partners 4,890,002 29,388,000 9.33%
4 RUTABAGA CAPITAL MANAGEMENT LLC/MA 4,581,092 27,532,000 8.74%
5 WELLINGTON MANAGEMENT GROUP LLP 3,611,993 21,707,000 6.89%
6 SEGALL BRYANT & HAMILL, LLC 2,416,536 14,523,000 4.61%
7 Bank of New York Mellon Corp 2,369,370 14,239,000 4.52%
8 VANGUARD GROUP INC 1,893,582 11,380,000 3.61%
9 AMERICAN CENTURY COMPANIES INC 1,732,107 10,410,000 3.30%
10 BlackRock Institutional Trust Company, N.A. 1,716,393 10,316,000 3.27%
11 BlackRock Fund Advisors 1,640,541 9,860,000 3.13%
12 NORTHERN TRUST CORP 1,519,398 9,132,000 2.90%
13 VAN DEN BERG MANAGEMENT I, INC 1,481,561 8,904,000 2.83%
14 AMERIPRISE FINANCIAL INC 1,426,632 8,576,000 2.72%
15 AJO, LP 1,029,710 6,189,000 1.96%
16 STATE STREET CORP 925,378 5,564,000 1.77%
17 KENNEDY CAPITAL MANAGEMENT LLC 745,293 4,479,000 1.42%
18 PRESCOTT GROUP CAPITAL MANAGEMENT, L.L.C. 647,390 3,891,000 1.24%
19 THB ASSET MANAGEMENT 633,462 3,807,000 1.21%
20 MORGAN STANLEY 538,429 3,236,000 1.03%
21 Minerva Advisors LLC 478,427 2,871,000 0.91%
22 BRIDGEWAY CAPITAL MANAGEMENT, LLC 451,750 2,715,000 0.86%
23 MARATHON CAPITAL MANAGEMENT 400,050 2,404,000 0.76%
24 AlphaOne Investment Services, LLC 369,595 2,221,000 0.71%
25 CREDIT SUISSE AG/ 365,253 2,196,000 0.70%
26 CALIFORNIA PUBLIC EMPLOYEES RETIREMENT SYSTEM 269,200 2,097,000 0.67%
27 GEODE CAPITAL MANAGEMENT, LLC 338,109 2,032,000 0.65%
28 RUSSELL FRANK CO/ 313,400 1,884,000 0.60%
29 BB&T SECURITIES, LLC 29,000 1,742,000 0.55%
30 TIAA CREF INVESTMENT MANAGEMENT LLC 242,489 1,457,000 0.46%
31 Asset Management One Co., Ltd. 215,100 1,293,000 0.41%
32 RENAISSANCE TECHNOLOGIES LLC 207,900 1,249,000 0.40%
33 Foundry Partners, LLC 202,815 1,219,000 0.39%
34 ALPINE WOODS CAPITAL INVESTORS, LLC 200,000 1,202,000 0.38%
35 BlackRock Investment Management, LLC 197,027 1,184,000 0.38%
36 North Star Investment Management Corp. 193,300 1,162,000 0.37%
37 KEELEY ASSET MANAGEMENT CORP 190,720 1,146,000 0.36%
38 MANAGED ACCOUNT ADVISORS LLC 169,641 1,020,000 0.32%
39 GUGGENHEIM CAPITAL LLC 168,189 1,011,000 0.32%
40 CHARLES SCHWAB INVESTMENT MANAGEMENT INC 164,365 988,000 0.31%
41 RAYMOND JAMES & ASSOCIATES 157,046 944,000 0.30%
42 ACADIAN ASSET MANAGEMENT LLC 147,274 885,000 0.28%
43 CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM 109,228 656,000 0.21%
44 PARAMETRIC PORTFOLIO ASSOCIATES LLC 107,293 645,000 0.20%
45 AWM Investment Company, Inc. 100,000 601,000 0.19%
46 Invesco Ltd. 93,520 562,000 0.18%
47 GOLDEN GATE PRIVATE EQUITY, INC. 143,083 560,000 0.18%
48 DEUTSCHE BANK AG\ 93,500 560,000 0.18%
49 SUSQUEHANNA INTERNATIONAL GROUP, LLP 91,617 551,000 0.17%
50 RHUMBLINE ADVISERS 87,763 527,000 0.17%
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From 2023-01-03 onward, the SEC requires values to be reported in nearest dollars. Earlier filings reported values in thousands; therefore, positions shown as $0 in older filings may represent actual values between $0–$999.