GREAT LAKES DREDGE & DOCK CO's ticker is and the CUSIP is 390607959. A total of 3 filers reported holding GREAT LAKES DREDGE & DOCK CO in Q4 2020. The put-call ratio across all filers is - and the average weighting 0.0%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q3 2022 | $3,000 | -98.8% | 400 | -97.9% | 0.00% | – |
| Q2 2022 | $248,000 | +24700.0% | 18,900 | +18800.0% | 0.00% | – |
| Q1 2022 | $1,000 | -99.4% | 100 | -99.0% | 0.00% | – |
| Q4 2021 | $157,000 | -43.1% | 10,000 | -45.4% | 0.00% | – |
| Q3 2021 | $276,000 | +278.1% | 18,300 | +266.0% | 0.00% | – |
| Q2 2021 | $73,000 | +942.9% | 5,000 | +900.0% | 0.00% | – |
| Q4 2020 | $7,000 | -46.2% | 500 | -68.8% | 0.00% | – |
| Q1 2020 | $13,000 | +62.5% | 1,600 | +100.0% | 0.00% | – |
| Q3 2019 | $8,000 | -70.4% | 800 | -86.9% | 0.00% | – |
| Q1 2016 | $27,000 | -59.7% | 6,100 | -64.1% | 0.00% | -100.0% |
| Q4 2015 | $67,000 | +21.8% | 17,000 | +56.0% | 0.00% | 0.0% |
| Q3 2015 | $55,000 | +1000.0% | 10,900 | +1262.5% | 0.00% | – |
| Q1 2015 | $5,000 | -94.4% | 800 | -92.3% | 0.00% | -100.0% |
| Q4 2014 | $89,000 | +4.7% | 10,400 | -24.1% | 0.00% | 0.0% |
| Q3 2014 | $85,000 | +142.9% | 13,700 | +211.4% | 0.00% | 0.0% |
| Q2 2014 | $35,000 | -56.8% | 4,400 | -50.6% | 0.00% | 0.0% |
| Q1 2014 | $81,000 | +2600.0% | 8,900 | +2125.0% | 0.00% | – |
| Q2 2013 | $3,000 | – | 400 | – | 0.00% | – |
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Other shareholders
| Name | Shares | Value | Weighting ↓ |
|---|---|---|---|
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. | 0 | $0 | 0.00% |
| GROUP ONE TRADING, L.P. | 500 | $7,000 | 0.00% |
| SIMPLEX TRADING, LLC | 72 | $94,000 | 0.00% |