BOSTON BEER CO INC
Total Trades
47
Buys
0
Sells
33
Largest Trade
N/A
Insiders
9
Institutional Funds
285
Inst. Value
$1M+
Activist Filings
22
Insider Trades
| Insider | Title | Type | Value | Shares | Price | Date |
|---|---|---|---|---|---|---|
| Spillane Michael | Director | SELL | $500K+ | 3K | $205.78 | Nov 4, 2025 |
| VALETTE JEAN MICHEL | Director | SELL | $500K+ | 4K | $228.45 | Mar 17, 2025 |
| O'Boyle Carolyn L. | Chief People Officer | SELL | $15K–$50K | 62 | $301.76 | Jan 3, 2025 |
| O'Boyle Carolyn L. | Chief People Officer | SELL | $15K–$50K | 62 | $316.24 | Dec 3, 2024 |
| O'Boyle Carolyn L. | Chief People Officer | SELL | $15K–$50K | 62 | $292.74 | Nov 4, 2024 |
| O'Boyle Carolyn L. | Chief People Officer | SELL | $15K–$50K | 62 | $288.86 | Oct 2, 2024 |
| O'Boyle Carolyn L. | Chief People Officer | SELL | $15K–$50K | 101 | $303.49 | Apr 2, 2024 |
| O'Boyle Carolyn L. | Chief People Officer | GRANT | N/A | 5K | — | Mar 4, 2024 |
| O'Boyle Carolyn L. | Chief People Officer | SELL | $15K–$50K | 102 | $308.45 | Mar 4, 2024 |
| O'Boyle Carolyn L. | Chief People Officer | SELL | $15K–$50K | 102 | $350.72 | Feb 2, 2024 |
| O'Boyle Carolyn L. | Chief People Officer | SELL | $15K–$50K | 102 | $344.83 | Jan 3, 2024 |
| O'Boyle Carolyn L. | Chief People Officer | SELL | $15K–$50K | 102 | $354.90 | Dec 4, 2023 |
| O'Boyle Carolyn L. | Chief People Officer | SELL | $15K–$50K | 102 | $333.96 | Nov 14, 2023 |
| Calagione Samuel A. III | Founder & Brewer | SELL | $1M+ | 27K | $359.13 | Aug 14, 2023 |
| Geist John C | Chief Sales Officer | SELL | $1M+ | 4K | $353.00 | Jul 31, 2023 |
| Geist John C | Chief Sales Officer | EXERCISE | $500K+ | 4K | $201.91 | Jul 31, 2023 |
| Geist John C | Chief Sales Officer | SELL | $1M+ | 10K | $341.35 | Jun 6, 2023 |
| Geist John C | Chief Sales Officer | EXERCISE | $1M+ | 10K | $201.91 | Jun 6, 2023 |
| Burwick David A | President and CEO | EXERCISE | $100K–$500K | 2K | $151.49 | May 24, 2023 |
| Burwick David A | President and CEO | SELL | $500K+ | 2K | $326.38 | May 24, 2023 |
| Fritsch Annette N | VP of Product Desi… | SELL | $50K–$100K | 220 | $318.37 | Mar 7, 2023 |
| Geist John C | Chief Sales Officer | SELL | $100K–$500K | 646 | $320.14 | Mar 2, 2023 |
| Geist John C | Chief Sales Officer | GRANT | N/A | 2K | — | Mar 2, 2023 |
| O'Boyle Carolyn L. | Chief People Officer | SELL | $15K–$50K | 50 | $350.00 | Jan 13, 2023 |
| O'Boyle Carolyn L. | Chief People Officer | SELL | $15K–$50K | 50 | $386.43 | Dec 2, 2022 |
| O'Boyle Carolyn L. | Chief People Officer | SELL | $15K–$50K | 50 | $377.52 | Nov 2, 2022 |
| Geist John C | Chief Sales Officer | SELL | $1M+ | 5K | $412.73 | Oct 26, 2022 |
| Geist John C | Chief Sales Officer | EXERCISE | $1M+ | 5K | $201.91 | Oct 26, 2022 |
| Fritsch Annette N | VP of Product Desi… | SELL | $50K–$100K | 150 | $407.89 | Oct 26, 2022 |
| O'Boyle Carolyn L. | Chief People Officer | SELL | $15K–$50K | 101 | $350.00 | Oct 11, 2022 |
| O'Boyle Carolyn L. | Chief People Officer | SELL | $50K–$100K | 251 | $381.73 | Aug 4, 2022 |
| Grinnell David L. | Vice President of … | SELL | $100K–$500K | 425 | $379.92 | Aug 2, 2022 |
| Grinnell David L. | Vice President of … | EXERCISE | $50K–$100K | 425 | $186.60 | Aug 2, 2022 |
| Grinnell David L. | Vice President of … | EXERCISE | $50K–$100K | 425 | $169.85 | Jul 12, 2022 |
| Grinnell David L. | Vice President of … | SELL | $100K–$500K | 425 | $304.97 | Jul 12, 2022 |
| Burwick David A | President and CEO | SELL | $500K+ | 2K | $342.89 | May 19, 2022 |
| Burwick David A | President and CEO | EXERCISE | $100K–$500K | 2K | $104.67 | May 19, 2022 |
| Geist John C | Chief Sales Officer | SELL | $100K–$500K | 1K | $387.98 | Apr 4, 2022 |
| Geist John C | Chief Sales Officer | EXERCISE | $100K–$500K | 1K | $191.10 | Apr 4, 2022 |
| Troupe Quincy B | Senior VP | SELL | $1M+ | 4K | $393.71 | Mar 4, 2022 |
| Troupe Quincy B | Senior VP | EXERCISE | $1M+ | 6K | $192.04 | Mar 4, 2022 |
| Geist John C | Chief Sales Officer | SELL | $100K–$500K | 456 | $388.12 | Mar 2, 2022 |
| Geist John C | Chief Sales Officer | GRANT | N/A | 756 | — | Mar 2, 2022 |
| Troupe Quincy B | Senior VP | SELL | $100K–$500K | 842 | $500.00 | Jan 10, 2022 |
| Troupe Quincy B | Senior VP | EXERCISE | $100K–$500K | 471 | $221.79 | Jan 10, 2022 |
| Geist John C | Chief Sales Officer | EXERCISE | $1M+ | 6K | $201.91 | Jan 4, 2022 |
| Geist John C | Chief Sales Officer | SELL | $1M+ | 6K | $512.48 | Jan 4, 2022 |
Institutional Ownership
13F filings as of Dec 31, 2025 · 285 funds holding
| Fund | Shares | Value | Type |
|---|---|---|---|
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | 272K | $1M+ | SH |
| DIMENSIONAL FUND ADVISORS LP | 258K | $1M+ | SH |
| STATE STREET CORP | 254K | $1M+ | SH |
| AMERICAN CENTURY COMPANIES INC | 192K | $1M+ | SH |
| Global Alpha Capital Management Ltd. | 123K | $1M+ | SH |
| GEODE CAPITAL MANAGEMENT, LLC | 112K | $1M+ | SH |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 99K | $1M+ | SH |
| RENAISSANCE TECHNOLOGIES LLC | 83K | $1M+ | SH |
| SOUTHERNSUN ASSET MANAGEMENT, LLC | 76K | $1M+ | SH |
| Man Group plc | 71K | $1M+ | SH |
| Calamos Advisors LLC | 65K | $1M+ | SH |
| LOOMIS SAYLES & CO L P | 64K | $1M+ | SH |
| VOLORIDGE INVESTMENT MANAGEMENT, LLC | 63K | $1M+ | SH |
| Monaco Asset Management SAM | 54K | $1M+ | SH |
| GOLDMAN SACHS GROUP INC | 50K | $1M+ | SH |
| VANGUARD GROUP INC | 47K | $1M+ | SH |
| NOMURA HOLDINGS INC | 47K | $1M+ | SH |
| Pacer Advisors, Inc. | 42K | $1M+ | SH |
| FIRST TRUST ADVISORS LP | 38K | $1M+ | SH |
| ONTARIO TEACHERS PENSION PLAN BOARD | 31K | $1M+ | SH |
Activist & 5%+ Owners
SC 13D/13G filings — investors holding 5%+ of outstanding shares
SC 13G/A · Feb 12, 2026
5.1%
440K shares
SC 13G/A · Feb 11, 2026
21.6%
2.3M shares
SC 13G/A · Jan 30, 2026
12.1%
1.0M shares
SC 13G · Nov 14, 2025
7.3%
647K shares
SC 13G/A · Jun 5, 2025
10.1%
912K shares
T. Rowe Price Investment Management, Inc.
SC 13G/A · May 14, 2025
0.6%
53K shares
SC 13G/A · Feb 7, 2025
20.0%
2.3M shares
T. Rowe Price Investment Management, Inc. 85-4328500
SC 13G/A · Nov 14, 2024
7.0%
674K shares
SC 13G/A · Nov 12, 2024
5.2%
501K shares
T. Rowe Price Investment Management, Inc. 85-4328500
SC 13G/A · Feb 14, 2024
9.2%
931K shares
The Vanguard Group - 23-1945930
SC 13G/A · Feb 13, 2024
9.1%
918K shares
SC 13G/A · Feb 12, 2024
18.7%
2.3M shares
SC 13G/A · Jan 25, 2024
8.2%
827K shares
SC 13G/A · Jan 10, 2024
9.8%
993K shares
T. Rowe Price Investment Management, Inc. 85-4328500
SC 13G/A · Feb 14, 2023
12.1%
1.2M shares
SC 13G/A · Feb 10, 2023
18.4%
2.3M shares
SC 13G/A · Feb 3, 2023
8.2%
843K shares
T. Rowe Price Investment Management, Inc. 85-4328500
SC 13G · Aug 10, 2022
13.3%
1.4M shares
T. ROWE PRICE ASSOCIATES, INC. 52-0556948
SC 13G/A · Aug 10, 2022
0.6%
62K shares
SC 13G · Jun 10, 2022
11.0%
1.1M shares
T. ROWE PRICE ASSOCIATES, INC. 52-0556948
SC 13G/A · Feb 14, 2022
12.9%
1.3M shares
SC 13G/A · Feb 1, 2022
7.8%
798K shares