SAM

Boston Beer Co Inc

Company with tickers: SAM

CIK

949870

CUSIP

100557107

Shares Outstanding

8,345,442

13F Activity (30d)

176 filings 173 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	486,458	157,406	643,864	44.5%
2026-05-11	620,605	274,751	895,356	57.3%
2026-05-04	371,031	165,360	536,391	45.3%
2026-04-27	586,539	136,547	723,086	53.9%
2026-04-20	338,303	126,870	465,173	48.1%
2026-04-13	448,513	110,259	558,772	62.5%
2026-04-06	409,374	80,205	489,579	43.8%
2026-03-30	214,040	47,413	261,453	64.1%
2026-03-23	247,725	88,648	336,373	40.5%
2026-03-16	228,188	73,270	301,458	41.2%
2026-03-09	279,258	124,135	403,393	45.2%
2026-03-02	236,049	144,695	380,744	45.7%
2026-02-23	380,107	129,922	510,029	43.9%
2026-02-16	247,124	67,606	314,730	43.4%
2026-02-09	302,135	73,336	375,471	44.1%
2026-02-02	291,013	109,382	400,395	42.4%
2026-01-26	202,624	59,402	262,026	40.2%
2026-01-19	248,402	69,672	318,074	43.4%
2026-01-12	266,994	68,236	335,230	41.7%
2026-01-05	240,382	72,555	312,937	40.0%
2025-12-29	154,885	70,723	225,608	41.5%
2025-12-22	181,414	64,733	246,147	43.5%
2025-12-15	291,791	148,963	440,754	42.1%

Showing 1–23 of 23 weeks