MMM

3M Co

Company with tickers: MMM

CIK

66740

CUSIP

88579Y101

Shares Outstanding

521,567,261

13F Activity (30d)

632 filings 604 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.

1M 3M 6M 1Y 5Y All

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%
2026-05-04	4,106,823	3,574,008	7,680,831	53.8%
2026-04-27	4,355,511	3,410,584	7,766,095	49.6%
2026-04-20	8,041,648	4,645,696	12,687,344	60.3%
2026-04-13	3,540,927	2,542,496	6,083,423	51.1%
2026-04-06	3,597,331	2,553,227	6,150,558	45.6%
2026-03-30	2,326,577	1,536,249	3,862,826	38.4%
2026-03-23	3,821,992	2,607,404	6,429,396	39.1%
2026-03-16	5,929,371	4,473,126	10,402,497	41.7%
2026-03-09	6,693,427	2,488,737	9,182,164	36.2%
2026-03-02	5,782,879	2,496,799	8,279,678	38.7%
2026-02-23	3,932,350	2,443,048	6,375,398	37.0%
2026-02-16	3,856,071	2,314,372	6,170,443	42.2%
2026-02-09	4,868,153	2,544,992	7,413,145	39.8%
2026-02-02	7,815,531	4,002,903	11,818,434	42.4%
2026-01-26	5,390,486	3,260,552	8,651,038	39.8%
2026-01-19	7,582,070	4,998,772	12,580,842	43.5%
2026-01-12	4,900,294	2,928,952	7,829,246	40.3%
2026-01-05	3,589,481	1,851,041	5,440,522	40.9%
2025-12-29	1,721,733	923,559	2,645,292	39.8%
2025-12-22	1,743,431	1,031,618	2,775,049	44.3%
2025-12-15	2,897,641	2,233,738	5,131,379	35.8%

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