Great Lakes Dredge & Dock CORP - Common (GLDD) Institutional Ownership

13F Institutional Holders and Ownership History from Q1 2014 to Q4 2025

Type / Class
Equity / Common
Symbol
GLDD on Nasdaq
Shares outstanding
68,157,603
Price per share
$13.12
All holders as of 30 Sep 2025
Q3 2025
Total 13F shares
54,867,170
Total reported value
$657,811,521
% of total 13F portfolios
0%
Share change
+6,535
Value change
+$197,940
Number of holders
210
Price from insider filings
$13.12
Reported Shares, Excluding Options vs Price
Reported Value, Excluding Options
Total Investors

Significant Owners of Great Lakes Dredge & Dock CORP - Common (GLDD) based on Schedule 13D/G filings

Filer Ownership Change % Holdings Value Net Change Nb Shares Change % Reporting Name Report Period
BlackRock, Inc. 10% $54,403,908 6,708,250 BlackRock, Inc. 31 Mar 2025
PRUDENTIAL FINANCIAL INC 6.3% -20% $51,484,209 -$12,403,319 4,293,929 -19% PRUDENTIAL FINANCIAL INC 30 Sep 2025
JENNISON ASSOCIATES LLC 6.3% -20% $51,248,473 -$12,429,146 4,274,268 -20% Jennison Associates LLC 30 Sep 2025
ALLIANCEBERNSTEIN L.P. 4.3% -25% $23,244,258 -$8,295,168 2,866,123 -26% AllianceBernstein L.P. 31 Dec 2024

As of 30 Sep 2025, 210 institutional investors reported holding 54,867,170 shares of Great Lakes Dredge & Dock CORP - Common (GLDD). This represents 81% of the company’s total 68,157,603 outstanding shares.

Top 25 Institutional Shareholders

The largest institutional shareholders of Great Lakes Dredge & Dock CORP - Common (GLDD) together control 61% of the company’s outstanding shares — a level of ownership often associated with strong institutional conviction and long‑term capital commitment.

Institution Ownership % Shares Held Share Change % Portfolio % Holdings Value
BlackRock, Inc. 10% 6,937,720 +2.2% 0% $83,183,263
DIMENSIONAL FUND ADVISORS LP 6.3% 4,323,251 +0.82% 0.01% $51,835,142
JENNISON ASSOCIATES LLC 6.3% 4,274,268 -11% 0.03% $51,248,475
VANGUARD GROUP INC 5.7% 3,879,301 -0.15% 0% $46,512,818
Harvey Partners, LLC 5.4% 3,700,551 -0.87% 4% $44,369,606
AMERICAN CENTURY COMPANIES INC 3.5% 2,412,467 +11% 0.01% $28,925,479
TCW GROUP INC 2.7% 1,874,234 -10% 0.19% $22,472,066
GEODE CAPITAL MANAGEMENT, LLC 2.4% 1,634,491 -1.3% 0% $19,599,917
STATE STREET CORP 2.4% 1,617,353 -0.58% 0% $19,392,062
Minerva Advisors LLC 2% 1,389,807 0% 11% $16,663,786
MILLENNIUM MANAGEMENT LLC 1.7% 1,146,135 +229% 0.01% $13,742,159
JPMORGAN CHASE & CO 1.3% 888,739 +13% 0% $10,655,980
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP 1.2% 803,586 -4.5% 0.01% $9,634,996
MORGAN STANLEY 1.2% 797,452 +0.55% 0% $9,561,448
NORTHERN TRUST CORP 1% 695,157 +0.6% 0% $8,334,932
LONDON CO OF VIRGINIA 0.86% 584,424 -9.1% 0.04% $7,007,244
Prescott Group Capital Management, L.L.C. 0.85% 576,870 0% 0.73% $6,916,671
CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.82% 561,705 +0.95% 0% $6,734,843
CenterBook Partners LP 0.76% 518,331 +48% 0.31% $6,214,789
PRIVATE MANAGEMENT GROUP INC 0.74% 504,527 -23% 0.18% $6,049,279
Allspring Global Investments Holdings, LLC 0.72% 494,033 +99% 0.01% $5,883,934
CASTLEKEEP INVESTMENT ADVISORS LLC 0.67% 454,529 -4.7% 2.5% $5,449,803
NEXT CENTURY GROWTH INVESTORS LLC 0.66% 446,821 -31% 0.39% $5,357,383
BRIDGEWAY CAPITAL MANAGEMENT, LLC 0.65% 442,088 +82% 0.11% $5,300,635
BNP PARIBAS FINANCIAL MARKETS 0.63% 429,833 0% 0% $5,153,698

Institutional Holders of Great Lakes Dredge & Dock CORP - Common (GLDD) across Reporting Periods

Period Reported Shares, Excl. Options Value, Excl. Options Value Change Price (Median) Investors
2025 Q4 837,740 $11,051,756 -$259,357 $13.12 15
2025 Q3 54,867,170 $657,811,521 +$197,940 $11.99 210
2025 Q2 54,577,452 $665,209,845 -$6,488,665 $12.19 188
2025 Q1 55,352,230 $481,638,612 +$1,594,398 $8.70 188
2024 Q4 55,646,697 $628,198,205 +$5,831,888 $11.29 190
2024 Q3 54,624,748 $575,324,595 +$6,480,906 $10.53 179
2024 Q2 53,619,651 $470,397,227 +$7,225,455 $8.78 167
2024 Q1 53,411,514 $467,342,546 -$18,305,809 $8.75 155
2023 Q4 594,026 $4,562,119 +$99,724 $7.68 3
2023 Q3 55,821,683 $444,809,087 -$2,051,166 $7.97 146
2023 Q2 54,523,534 $444,887,328 -$6,696,027 $8.16 130
2023 Q1 55,911,308 $303,541,472 -$5,904,845 $5.43 138
2022 Q4 57,544,513 $342,383,373 -$7,290,616 $5.95 141
2022 Q3 57,461,990 $435,618,112 +$2,414,727 $7.58 125
2022 Q2 56,558,423 $741,467,024 -$5,347,516 $13.11 125
2022 Q1 56,486,391 $792,672,432 -$5,207,620 $14.03 130
2021 Q4 56,560,951 $889,121,476 -$17,424,557 $15.72 120
2021 Q3 57,134,519 $862,157,202 +$58,740,849 $15.09 119
2021 Q2 56,632,410 $827,356,752 +$28,153,103 $14.61 128
2021 Q1 54,853,804 $800,112,893 +$10,367,843 $14.58 142
2020 Q4 55,205,568 $727,178,426 +$14,001,023 $13.17 137
2020 Q3 54,430,102 $517,728,625 -$15,439,046 $9.51 148
2020 Q2 55,023,215 $509,300,597 -$5,899,595 $9.26 148
2020 Q1 56,114,248 $465,606,194 +$2,451,693 $8.30 151
2019 Q4 56,677,393 $642,172,025 +$12,320,336 $11.33 161
2019 Q3 55,596,430 $580,973,164 +$14,021,209 $10.45 164
2019 Q2 54,494,644 $601,235,900 +$33,223,504 $11.04 162
2019 Q1 51,656,001 $460,236,300 +$32,589,972 $8.91 142
2018 Q4 48,455,382 $320,785,768 +$2,823,001 $6.62 121
2018 Q3 47,582,318 $294,922,390 +$4,300,467 $6.20 94
2018 Q2 44,740,239 $234,877,740 -$8,316,051 $5.25 94
2018 Q1 48,114,859 $221,270,104 +$6,795,796 $4.60 91
2017 Q4 46,343,384 $250,257,146 +$14,570,920 $5.40 97
2017 Q3 43,893,227 $212,936,339 +$3,468,211 $4.85 96
2017 Q2 44,053,365 $189,374,558 +$2,122,048 $4.30 93
2017 Q1 43,555,464 $174,258,292 +$12,368,763 $4.00 89
2016 Q4 44,292,410 $186,133,386 -$14,223,453 $4.20 95
2016 Q3 47,378,954 $165,803,544 -$7,194,251 $3.50 86
2016 Q2 47,941,198 $209,024,338 -$1,493,567 $4.36 89
2016 Q1 49,043,438 $218,881,061 -$6,707,424 $4.46 89
2015 Q4 50,945,562 $201,795,782 -$2,609,506 $3.96 95
2015 Q3 50,783,443 $255,956,194 -$8,090,660 $5.04 90
2015 Q2 50,688,250 $302,107,909 +$731,409 $5.96 88
2015 Q1 51,216,086 $307,802,558 +$878,823 $6.01 99
2014 Q4 52,410,966 $448,426,950 +$24,839,142 $8.56 106
2014 Q3 49,945,369 $308,665,769 -$1,582,979 $6.18 112
2014 Q2 50,348,219 $402,167,633 -$27,875,529 $7.99 108
2014 Q1 50,966,010 $465,239,706 -$15,344,146 $9.13 110