Vault-13

GREAT LAKES DREDGE & DOCK CO GLDD

COM · Common Stock · CUSIP 390607109

1 institutional holders -181 vs Q1 2026
11 shares reported held*
$17reported value*
0 new 0 added 0 reduced 175 sold out net sold ≈ $908.6m (-53.5m shares)

* Summed across managers. Shares that two managers' reports both contain – a subsidiary's holdings that its parent's report includes too, or a sub-adviser's in its client's – are counted once. Holder counts are more reliable. Implied quarter-end price ≈ $17.00.

Trends to Q2 2026

Institutional holders

Managers reporting a position, each quarter

0100200300Q3 22: 137Q4 22: 143Q1 23: 141Q2 23: 134Q3 23: 147Q4 23: 143Q1 24: 159Q2 24: 171Q3 24: 181Q4 24: 192Q1 25: 193Q2 25: 193Q3 25: 212Q4 25: 222Q1 26: 182Q2 26: 11Q3 22Q3 23Q3 24Q3 25Q2 26
Numbers
QuarterHolders
Q3 2022137
Q4 2022143
Q1 2023141
Q2 2023134
Q3 2023147
Q4 2023143
Q1 2024159
Q2 2024171
Q3 2024181
Q4 2024192
Q1 2025193
Q2 2025193
Q3 2025212
Q4 2025222
Q1 2026182
Q2 20261

Buyers vs sellers

Managers adding to or starting a position, vs cutting or selling out

Bought or addedCut or sold out
2000200Q3 24: 92 bought or addedQ3 24: 79 cut or sold outQ4 24: 90 bought or addedQ4 24: 82 cut or sold outQ4 24Q1 25: 82 bought or addedQ1 25: 103 cut or sold outQ2 25: 105 bought or addedQ2 25: 86 cut or sold outQ2 25Q3 25: 107 bought or addedQ3 25: 88 cut or sold outQ4 25: 106 bought or addedQ4 25: 99 cut or sold outQ4 25Q1 26: 90 bought or addedQ1 26: 154 cut or sold outQ2 26: 0 bought or addedQ2 26: 175 cut or sold outQ2 26
Numbers
QuarterBought or addedCut or sold out
Q3 20249279
Q4 20249082
Q1 202582103
Q2 202510586
Q3 202510788
Q4 202510699
Q1 202690154
Q2 20260175

Calls vs puts

Options held, notional value, last 4 quarters. P/C = puts ÷ calls

CallsPuts
$0$5m$10m$15mQ3 25 calls: $3.6mQ3 25 puts: $399.7kQ3 25P/C 0.11Q4 25 calls: $7.2mQ4 25 puts: $304.4kQ4 25P/C 0.04Q1 26 calls: $13.4mQ1 26 puts: $1.7mQ1 26P/C 0.12Q2 26 calls: $0Q2 26 puts: $0Q2 26P/C —
Numbers
QuarterCallsPutsP/C
Q3 2025$3.6m$399.7k0.11
Q4 2025$7.2m$304.4k0.04
Q1 2026$13.4m$1.7m0.12
Q2 2026$0$0—

Biggest buyers

None

Biggest sellers

BlackRock, Inc. Sold out -5,917,589-5.9m
DIMENSIONAL FUND ADVISORS LP Sold out -3,386,372-3.4m
AMERICAN CENTURY COMPANIES INC Sold out -3,006,419-3.0m
GLAZER CAPITAL, LLC Sold out -2,949,613-2.9m
VANGUARD CAPITAL MANAGEMENT LLC Sold out -2,856,158-2.9m
FIL Ltd Sold out -2,671,231-2.7m
TWO SIGMA INVESTMENTS, LP Sold out -1,989,521-2.0m
GEODE CAPITAL MANAGEMENT, LLC Sold out -1,678,166-1.7m
Balyasny Asset Management L.P. Sold out -1,626,990-1.6m
STATE STREET CORP Sold out -1,577,722-1.6m

Major shareholders (over 5%)

Anyone who owns more than 5% of a class of the company's shares has to say so: on Schedule 13D if they may try to influence or control the company, on 13G if they're a passive investor, and update it as the stake changes. Each holder's latest filing, from 19 Dec 2024 on; percentages are of the share class, as the holder worked them out.

HolderStakeChangeShares Last filed
BlackRock, Inc. 13G · institution -1.8 pts · filed 2026-04-28 8.2% -1.8 pts 5.5m 2026-04-28
VANGUARD CAPITAL MANAGEMENT LLC 13G · institution new · filed 2026-04-30 5.0% new 3.4m 2026-04-30

Fell to 5% or below in the last year: DIMENSIONAL FUND ADVISORS LP (0.0%, 2026-07-14), Harvey Partners, LLC (0.9%, 2026-05-15), PRUDENTIAL FINANCIAL INC (1.8%, 2026-05-08), JENNISON ASSOCIATES LLC (1.5%, 2026-05-06), VANGUARD GROUP INC (0.0%, 2026-03-27; now reported by VANGUARD CAPITAL MANAGEMENT LLC)

Holders, Q2 2026

#ManagerLocationShares Value% of their portfolioChangeShares change
1 HUNTINGTON NATIONAL BANK 0.00% of their portfolio COLUMBUS, OH 11 $17 $17 0.00% Unchanged