BOSTON BEER CO INC (SAM) - Dilution Analysis

Visualizing historical and potential share dilution over time

Dilution Analysis

Low Risk
Limited dilution potential
Last updated: April 30, 2026

Risk Assessment Details

Potential Dilution: 0.0% of current shares
Recent Dilution: 0% (2 years)
Historical Dilution Factor: minimal recent dilution
Outstanding Shares
8.3M
Potential Supply
0
Additional shares possible
Splits
None
Past 2 years

Summary

SAM currently has 8.35M outstanding shares. with minimal authorized share overhang for future dilution. The company has not diluted shareholders through share issuances in the past 2 years, which is positive for existing holders.

Share Structure Timeline

Outstanding Shares
Total Supply

Historical Data Points

Date Event Outstanding Supply
Apr 30, 2026

10-Q filing | 8.3M shares outstanding

8.3M 0
Oct 23, 2025

10-Q filing | 8.6M shares outstanding

8.6M 0
Jul 24, 2025

10-Q filing | 8.8M shares outstanding

8.8M 0
May 16, 2025

8-K filing: On May 6, 2025, Vice President, Finance & Chief Accounting Officer Matthew D. Murphy entered into an individual trading plan pursuant to Rule 10b5-1 of the Securities Exchange Act of 1934, as amended, covering proposed sales of up to 4,155 shares of the Company's Class A Common Stock.

9.1M 0
Apr 24, 2025

10-Q filing | 9.1M shares outstanding

9.1M 0
Feb 25, 2025

10-K filing | 9.2M shares outstanding

9.2M 0
Oct 24, 2024

10-Q filing | 9.4M shares outstanding

9.4M 0
Jul 25, 2024

10-Q filing | 9.6M shares outstanding

9.6M 0
May 13, 2024

8-K filing: On May 7, 2024, Chief People Officer Carolyn O'Boyle entered into a 10b5-1 trading plan for proposed sales of up to 746 shares of the Company's Class A Common Stock. On May 13, 2024, the Company entered into a 10b5-1 plan to repurchase up to $63 million of the Company's Class A Common Stock.

9.9M 0
Apr 25, 2024

10-Q filing | 9.9M shares outstanding

9.9M 0
Feb 27, 2024

10-K filing | 10.0M shares outstanding

10M 0
Nov 15, 2023

8-K filing: David A. Burwick entered into a 10b5-1 plan to sell up to 1,116 shares of Class A Common Stock, and the company entered into a 10b5-1 plan to repurchase up to $50 million of its Class A Common Stock.

10M 0
Oct 26, 2023

10-Q filing | 10.1M shares outstanding

10M 0
Aug 15, 2023

8-K filing: On August 11, 2023, the Company entered into a 10b5-1 plan to repurchase up to $30 million of the Company's Class A Common Stock during the period commencing October 2, 2023 and ending December 29, 2023. On August 14, 2023, Chief People Officer Carolyn O'Boyle entered into an individual 10b5-1 plan for trading in shares of the Company's Class A Common Stock. The maximum number of shares that may be sold pursuant to this 10b5-1 plan is 611 shares.

10M 0
Jul 27, 2023

10-Q filing | 10.2M shares outstanding

10M 0
May 16, 2023

8-K filing: On May 15, 2023, the Company entered into a 10b5-1 plan to repurchase up to $25 million of the Company's Class A Common Stock and Chief Sales Officer John C. Geist entered into an individual trading plan pursuant to Rule 10b5-1 covering proposed sales of up to 13,524 shares of the Company's Class A Common Stock.

10M 0
Apr 27, 2023

10-Q filing | 10.2M shares outstanding

10M 0
Mar 07, 2023

8-K filing: The Company entered into a 10b5-1 plan to repurchase up to $25 million of its Class A Common Stock, and Chief Sales Officer John C. Geist entered into an individual 10b5-1 plan for trading in 13,524 shares of the Company's Class A Common Stock.

10M 0
Feb 22, 2023

10-K filing | 10.2M shares outstanding

10M 0
Nov 10, 2022

8-K filing: From October 28 to November 2, 2022, officers of the Company entered into individual sales plans pursuant to Rule 10b5-1 for trading in shares of the Company's Class A Common Stock, and on November 4, 2022, the Company entered into a 10b5-1 plan to repurchase up to $25 million of the Company's Class A Common Stock during the period commencing January 3, 2023 and ending March 31, 2023.

10M 0
Oct 20, 2022

10-Q filing | 10.2M shares outstanding

10M 0
Aug 10, 2022

8-K filing: Chief People Officer Carolyn O'Boyle entered into a Rule 10b5-1 trading plan for proposed sales of up to 251 shares of the Company's Class A Common Stock.

10M 0
Jul 21, 2022

10-Q filing | 10.2M shares outstanding

10M 0
May 11, 2022

8-K filing: David L. Grinnell, Vice President of Brewing, entered into a Rule 10b5-1 trading plan on May 6, 2022, covering proposed sales of up to 2,975 shares of the Company's Class A Common Stock. John C. Geist, Chief Sales Officer, amended his 10b5-1 plan on May 9, 2022, to extend the trading end date.

10M 0
Apr 21, 2022

10-Q filing | 10.2M shares outstanding

10M 0
Mar 17, 2022

8-K filing: John Geist, the Company's Chief Sales Officer, entered into a trading plan pursuant to Rule 10b5-1 for sales of up to 7,532 shares of the Company's Class A Common Stock.

10M 0
Feb 22, 2022

10-K filing | 10.2M shares outstanding

10M 0
Oct 21, 2021

10-Q filing | 10.2M shares outstanding

10M 0
Jul 22, 2021

10-Q filing | 10.2M shares outstanding

10M 0
May 12, 2021

8-K filing: Directors and officers of the Company, including Chairman C. James Koch, Chief Executive Officer David A. Burwick, Sr. Vice President of Supply Chain Quincy Troupe, and the David A. Burwick 2020 Irrevocable Trust, entered into Rule 10b5-1 plans for trading in shares of the Company's Class A Common Stock, with an aggregate of 69,101 shares potentially to be sold for liquidity and investment diversification.

10M 0
Apr 22, 2021

10-Q filing | 10.1M shares outstanding

10M 0
Mar 09, 2021

8-K filing: Directors and officers of the Company, including Chairman C. James Koch, Sr., Sr. VP of Supply Chain Quincy Troupe, Chief People Officer Carolyn O'Boyle, and Director Jean-Michel Valette (through the Valette Family Revocable Trust), entered into individual sales plans pursuant to Rule 10b5-1 for trading in shares of the Company's Class A Common Stock.

9.7M 0
Feb 17, 2021

10-K filing | 9.7M shares outstanding

9.7M 0
Nov 12, 2020

8-K filing: Directors and officers of the Company entered into individual sales plans pursuant to Rule 10b5-1 of the Securities Exchange Act of 1934, as amended, for trading in shares of the Company's Class A Common Stock.

9.8M 0
Oct 22, 2020

10-Q filing | 9.8M shares outstanding

9.8M 0
Aug 12, 2020

8-K filing: Directors and officers of the Company, along with The Fisher Koch Family Foundation, entered into individual sales plans pursuant to Rule 10b5-1 of the Securities Exchange Act of 1934 for trading in shares of the Company's Class A Common Stock, with an aggregate of 147,581 shares that may be sold.

9.7M 0
Jul 23, 2020

10-Q filing | 9.7M shares outstanding

9.7M 0
May 13, 2020

8-K filing: Directors and officers of the Company, including Chairman and Founder C. James Koch, have entered into individual sales plans pursuant to Rule 10b5-1 for trading in shares of the Company's Class A Common Stock. The aggregate number of shares that may be sold pursuant to these 10b5-1 plans is 114,963 shares.

9.4M 0
Apr 22, 2020

10-Q filing | 9.4M shares outstanding

9.4M 0
Mar 12, 2020

8-K filing: Directors and officers of the Company entered into individual sales plans pursuant to Rule 10b5-1 for trading in shares of the Company's Class A Common Stock, with an aggregate number of 105,682 shares that may be sold.

8.9M 0
Feb 19, 2020

10-K filing | 8.9M shares outstanding

8.9M 0
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