The Boston Beer Company Inc. (SAM) Insider Trading

Last 12 months

Insiders sold $642k and bought nothing on the open market.

None of the selling was scheduled in advance under a 10b5-1 plan. Director Michael Spillane sold $642k on Nov 4, 2025, 22% of their stake, outside a plan. The last open-market buy by an executive or director was in Mar 2016.

Net open-market

−$642k

0 buys · 1 sale

Under a 10b5-1 plan

of the value sold

Insiders who bought / sold

0 / 1

executives and directors

Last open-market buy

Mar 2016

Mar 3, 2016

Get an email when SAM's executives or directors buy, or make a large sale outside a plan.

Trades · last 2 years

Date	Insider	Trade	Shares	Price	Value	Of their stake	Filing
Nov 4, 2025	Michael Spillane Director	SoldNo plan 2 parts	3,120	$205.78 average	$642k	22%	Form 4
Aug 8, 2025	Annette N Fritsch VP of Product Design and R&D	SoldNo plan 2 parts	600	$219.24 average	$132k	5.8%	Form 4
Mar 13, 2025	Jean Michel Valette Director	SoldNo plan 2 parts	3,500	$228.45 average	$800k	24%	Form 4
Jan 2, 2025	Carolyn L. O'Boyle Chief People Officer	Sold10b5-1 plan	62	$301.76	$19k	0.9%	Form 4
Dec 2, 2024	Carolyn L. O'Boyle Chief People Officer	Sold10b5-1 plan	62	$316.24	$20k	0.9%	Form 4
Nov 1, 2024	Carolyn L. O'Boyle Chief People Officer	Sold10b5-1 plan	62	$292.74	$18k	0.9%	Form 4

Nov 4, 2025No plan
Michael Spillane
Director · sold 3,120 at avg $205.78
$642k
22% of stake
Aug 8, 2025No plan
Annette N Fritsch
VP of Product Design and R&D · sold 600 at avg $219.24
$132k
5.8% of stake
Mar 13, 2025No plan
Jean Michel Valette
Director · sold 3,500 at avg $228.45
$800k
24% of stake
Jan 2, 202510b5-1 plan
Carolyn L. O'Boyle
Chief People Officer · sold 62 at $301.76
$19k
0.9% of stake
Dec 2, 202410b5-1 plan
Carolyn L. O'Boyle
Chief People Officer · sold 62 at $316.24
$20k
0.9% of stake
Nov 1, 202410b5-1 plan
Carolyn L. O'Boyle
Chief People Officer · sold 62 at $292.74
$18k
0.9% of stake

How to read this. Insiders sell for many reasons: taxes, diversifying, a house. Open-market buys are rarer and say more. A 10b5-1 plan is a trading schedule set up months in advance, so those sales were not timed on news. Large holders (funds and 10% owners) are listed under Everything but not counted as insiders. If you own or watch SAM, we send a push when an executive buys or makes a large sale outside a plan.

Source: SEC Form 4 filings, filed within two business days of each trade and checked for new ones every hour.

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Spot a number that looks wrong? Check it in SAM's SEC filings or

Download this analysis as a PDF (Pro)

Data sourced from SEC EDGAR filings and third-party price providers. Scores, valuations, and metrics are algorithmic estimates. This is not investment advice. See our Terms and Methodology.

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