GHM
Graham CorpCompany with tickers: GHM
CIK
716314
CUSIP
384556106
Shares Outstanding
11,691,140
Website
https://www.grahamcorp.com
Investor Relations
https://ir.grahamcorp.com/
13F Activity (30d)
8 filings
7 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 |
|---|---|---|---|---|
| 2026-05-04 | 194,359 | 87,415 | 281,774 | 36.9% |
| 2026-04-27 | 166,360 | 88,307 | 254,667 | 32.4% |
| 2026-04-20 | 91,387 | 93,565 | 184,952 | 39.9% |
| 2026-04-13 | 164,979 | 127,017 | 291,996 | 41.0% |
| 2026-04-06 | 112,155 | 117,426 | 229,581 | 36.3% |
| 2026-03-30 | 86,606 | 72,295 | 158,901 | 30.6% |
| 2026-03-23 | 120,584 | 88,523 | 209,107 | 36.9% |
| 2026-03-16 | 123,884 | 87,776 | 211,660 | 34.9% |
Showing 1–8 of 8 weeks