GLDD
Great Lakes Dredge & Dock CORPCompany with tickers: GLDD
CIK
1372020
CUSIP
390607109
Shares Outstanding
66,780,798
Website
https://www.gldd.com
13F Activity (30d)
11 filings
8 filers
Weekly off-exchange (dark pool / OTC) trading volume reported to FINRA under its OTC/ATS Transparency data. ATS volume is executed on alternating trading systems (dark pools); non-ATS OTC is other over-the-counter dealer volume. The off-exchange share is total off-exchange volume as a percentage of consolidated weekly trading volume for the same Monday–Friday week.
Off-Exchange Volume History
| Week Start | ATS Volume | Non-ATS OTC Volume | Total Off-Exchange | % of FINRA Weekly Volume |
|---|---|---|---|---|
| 2026-03-30 | 1,071,570 | 393,072 | 1,464,642 | 32.6% |
| 2026-03-23 | 2,355,418 | 884,799 | 3,240,217 | 38.1% |
| 2026-03-16 | 1,612,298 | 1,760,997 | 3,373,295 | 33.0% |
| 2026-03-09 | 2,700,487 | 2,057,450 | 4,757,937 | 50.9% |
| 2026-03-02 | 2,415,319 | 2,740,891 | 5,156,210 | 50.3% |
| 2026-02-23 | 1,660,475 | 564,728 | 2,225,203 | 35.3% |
| 2026-02-16 | 1,704,466 | 1,151,492 | 2,855,958 | 40.6% |
| 2026-02-09 | 5,002,444 | 5,183,891 | 10,186,335 | 42.5% |
| 2026-02-02 | 620,636 | 710,216 | 1,330,852 | 38.9% |
| 2026-01-26 | 746,772 | 1,057,167 | 1,803,939 | 47.2% |
| 2026-01-19 | 836,633 | 1,065,491 | 1,902,124 | 39.8% |
| 2026-01-12 | 1,398,127 | 2,484,848 | 3,882,975 | 49.1% |
| 2026-01-05 | 513,154 | 763,043 | 1,276,197 | 47.1% |
| 2025-12-29 | 184,113 | 462,727 | 646,840 | 46.8% |
| 2025-12-22 | 241,578 | 204,061 | 445,639 | 36.7% |
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