Great Lakes Dredge & Dock Corporation
US ˙ NasdaqGS ˙ US3906071093
BU SEMBOL ARTIK AKTİF DEĞİL

SecurityGLDD / Great Lakes Dredge & Dock Corporation
InstitutionStrs Ohio
Latest Disclosed Ownership0 shares
Latest Disclosed Value $ 0
Strs Ohio closes position in GLDD / Great Lakes Dredge & Dock Corporation

On October 30, 2025 - Strs Ohio filed a 13F-HR form disclosing ownership of 0 shares of Great Lakes Dredge & Dock Corporation (US:GLDD) valued at $0 USD as of September 30, 2025. The entity filed a previous 13F-HR on August 4, 2025 disclosing 3,400 shares of Great Lakes Dredge & Dock Corporation. This represents a change in shares of -100.00% during the quarter. The current value of the position is $0 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date
Effective
Date
Form Security Class ID Avg Price
Paid (Est)
Reported
Shares
ΔShares ΔShares
(%)
Reported
Value
(x1000)
ΔValue
(%)
Alloc
(%)
ΔAlloc ΔAlloc (%) Cost Basis
(x1000)
Unrealized
Gain/Loss
(x1000)
2025-10-30 2025-09-30 13F GREAT LAKES DREDGE & DOCK COM_STK 390607109 0 -3,400 -100.00 0 -100.00
2025-08-04 2025-06-30 13F GREAT LAKES DREDGE & DOCK COM_STK 390607109 3,400 -1,800 -34.62 41 -8.89 0.0002
2025-05-28 2025-03-31 13F GREAT LAKES DREDGE & DOCK COM_STK 390607109 5,200 5,200 45 0.0002
2020-12-14 2020-09-30 13F GREAT LAKES DREDGE & DOCK COM 390607109 0 -2,600 -100.00 0 -100.00
2020-07-23 2020-06-30 13F GREAT LAKES DREDGE & DOCK COM 390607109 2,600 -58,200 -95.72 24 -95.24 0.0001
2020-04-23 2020-03-31 13F GREAT LAKES DREDGE & DOCK COM 390607109 60,800 -1,700 -2.72 504 -28.81 0.0027
2020-01-24 2019-12-31 13F GREAT LAKES DREDGE & DOCK COM 390607109 62,500 -6,000 -8.76 708 -0.98 0.0030
2019-10-21 2019-09-30 13F/A-1 GREAT LAKES DREDGE & DOCK COM 390607109 68,500 4,100 6.37 715 0.70 0.0031
2019-10-21 2019-09-30 13F GREAT LAKES DREDGE & DOCK COM 390607109 68,500 6,000 715 3,164.6297
2019-07-25 2019-06-30 13F GREAT LAKES DREDGE & DOCK COM 390607109 64,400 -16,600 -20.49 710 -1.53 0.0032
2019-04-19 2019-03-31 13F GREAT LAKES DREDGE & DOCK COM 390607109 81,000 19,900 32.57 721 78.47 0.0033
2019-01-23 2018-12-31 13F GREAT LAKES DREDGE & DOCK COM 390607109 61,100 47,500 349.26 404 380.95 0.0021
2018-10-19 2018-09-30 13F GREAT LAKES DREDGE & DOCK COM 390607109 13,600 0 0.00 84 18.31 0.0004
2018-08-06 2018-06-30 13F GREAT LAKES DREDGE & DOCK COM 390607109 13,600 0 0.00 71 14.52 0.0003
2018-04-20 2018-03-31 13F GREAT LAKES DREDGE & DOCK COM 390607109 13,600 0 0.00 62 -15.07 0.0003
2018-01-23 2017-12-31 13F GREAT LAKES DREDGE & DOCK COM 390607109 13,600 0 0.00 73 12.31 0.0003
2017-10-23 2017-09-30 13F GREAT LAKES DREDGE & DOCK COM 390607109 13,600 0 0.00 65 12.07 0.0003
2017-07-26 2017-06-30 13F GREAT LAKES DREDGE & DOCK COM 390607109 13,600 0 0.00 58 7.41 0.0003
2017-04-26 2017-03-31 13F GREAT LAKES DREDGE & DOCK COM 390607109 13,600 0 0.00 54 -5.26 0.0002
2017-01-24 2016-12-31 13F GREAT LAKES DREDGE & DOCK COM 390607109 13,600 0 0.00 57 21.28 0.0003
2016-10-27 2016-09-30 13F GREAT LAKES DREDGE & DOCK COM 390607109 13,600 13,600 47 0.0002
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.