GREAT LAKES DREDGE & DOCK CO's ticker is and the CUSIP is 390607909. A total of 2 filers reported holding GREAT LAKES DREDGE & DOCK CO in Q1 2023. The put-call ratio across all filers is - and the average weighting 0.0%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q3 2023 | $157 | +361.8% | 19,800 | +371.4% | 0.00% | – |
| Q2 2023 | $34 | – | 4,200 | +4100.0% | 0.00% | – |
| Q1 2023 | $0 | -100.0% | 100 | -66.7% | 0.00% | – |
| Q4 2022 | $1 | -100.0% | 300 | 0.0% | 0.00% | – |
| Q1 2022 | $4,000 | -50.0% | 300 | -50.0% | 0.00% | – |
| Q3 2021 | $8,000 | 0.0% | 600 | 0.0% | 0.00% | – |
| Q2 2021 | $8,000 | – | 600 | +7400.0% | 0.00% | – |
| Q1 2021 | $0 | -100.0% | 8 | -98.6% | 0.00% | -100.0% |
| Q4 2020 | $729,000 | +175.1% | 554 | +98.6% | 0.00% | – |
| Q3 2020 | $265,000 | +813.8% | 279 | +771.9% | 0.00% | – |
| Q2 2020 | $29,000 | -25.6% | 32 | -31.9% | 0.00% | – |
| Q1 2020 | $39,000 | -81.2% | 47 | -74.5% | 0.00% | – |
| Q4 2019 | $208,000 | +316.0% | 184 | +283.3% | 0.00% | – |
| Q3 2019 | $50,000 | +614.3% | 48 | +585.7% | 0.00% | – |
| Q2 2019 | $7,000 | -85.7% | 7 | -87.5% | 0.00% | – |
| Q1 2019 | $49,000 | +4800.0% | 56 | +2700.0% | 0.00% | – |
| Q4 2018 | $1,000 | -98.3% | 2 | -97.9% | 0.00% | – |
| Q3 2018 | $60,000 | -1.6% | 97 | -17.1% | 0.00% | – |
| Q2 2018 | $61,000 | +454.5% | 117 | -37.1% | 0.00% | – |
| Q4 2017 | $11,000 | -8.3% | 186 | -38.2% | 0.00% | – |
| Q3 2017 | $12,000 | – | 301 | +112.0% | 0.00% | – |
| Q4 2016 | $0 | – | 142 | +184.0% | 0.00% | – |
| Q2 2016 | $0 | -100.0% | 50 | -46.2% | 0.00% | -100.0% |
| Q4 2014 | $33,000 | – | 93 | – | 0.00% | – |
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Other shareholders
| Name | Shares | Value | Weighting ↓ |
|---|---|---|---|
| GROUP ONE TRADING, L.P. | 31,400 | $414,000 | 0.00% |
| SIMPLEX TRADING, LLC | 554 | $729,000 | 0.00% |
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. | 0 | $0 | 0.00% |