MMM
3M CoCompany with tickers: MMM
CIK
66740
CUSIP
88579Y101
Shares Outstanding
521,567,261
13F Activity (30d)
745 filings
717 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 |
|---|---|---|---|---|
| 2026-05-18 | 5,369,528 | 3,775,944 | 9,145,472 | 51.6% |
| 2026-05-11 | 5,398,543 | 6,109,171 | 11,507,714 | 81.0% |
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