WINMARK CORP
Total Trades
55
Buys
2
Sells
34
Largest Trade
$1M+
Insiders
10
Institutional Funds
176
Inst. Value
$1M+
Activist Filings
21
Insider Trades
| Insider | Title | Type | Value | Shares | Price | Date |
|---|---|---|---|---|---|---|
| GRASSLE JENELE C | Director | SELL | $100K–$500K | 2K | $234.76 | Aug 19, 2022 |
| Tomlinson Percy C Jr | Director | BUY | $15K–$50K | 100 | $224.81 | Apr 14, 2022 |
| Goff Leah A | VP OF HUMAN RESOUR… | SELL | $100K–$500K | 2K | $225.28 | Mar 14, 2022 |
| Goff Leah A | VP OF HUMAN RESOUR… | EXERCISE | $100K–$500K | 2K | $144.45 | Mar 14, 2022 |
| Tomlinson Percy C Jr | Director | BUY | $15K–$50K | 100 | $225.00 | Mar 9, 2022 |
Institutional Ownership
13F filings as of Dec 31, 2025 · 176 funds holding
| Fund | Shares | Value | Type |
|---|---|---|---|
| Neuberger Berman Group LLC | 292K | $1M+ | SH |
| RENAISSANCE TECHNOLOGIES LLC | 208K | $1M+ | SH |
| FIRST TRUST ADVISORS LP | 152K | $1M+ | SH |
| Fisher Asset Management, LLC | 105K | $1M+ | SH |
| Port Capital LLC | 98K | $1M+ | SH |
| JACOBS LEVY EQUITY MANAGEMENT, INC | 96K | $1M+ | SH |
| STATE STREET CORP | 84K | $1M+ | SH |
| ALLIANCEBERNSTEIN L.P. | 78K | $1M+ | SH |
| GEODE CAPITAL MANAGEMENT, LLC | 69K | $1M+ | SH |
| DIMENSIONAL FUND ADVISORS LP | 67K | $1M+ | SH |
| Copeland Capital Management, LLC | 66K | $1M+ | SH |
| WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC | 52K | $1M+ | SH |
| Man Group plc | 37K | $1M+ | SH |
| GOLDMAN SACHS GROUP INC | 27K | $1M+ | SH |
| SCHWARTZ INVESTMENT COUNSEL INC | 27K | $1M+ | SH |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 25K | $1M+ | SH |
| ENVESTNET ASSET MANAGEMENT INC | 21K | $1M+ | SH |
| VANGUARD GROUP INC | 19K | $1M+ | SH |
| KENNEDY CAPITAL MANAGEMENT LLC | 16K | $1M+ | SH |
| VICTORY CAPITAL MANAGEMENT INC | 16K | $1M+ | SH |
Activist & 5%+ Owners
SC 13D/13G filings — investors holding 5%+ of outstanding shares
SC 13G/A · Feb 6, 2026
12.1%
432K shares
SC 13G · Jan 21, 2026
4.9%
174K shares
SC 13G · Aug 13, 2025
6.2%
220K shares
SC 13G · Jul 29, 2025
5.1%
181K shares
SC 13G/A · Apr 17, 2025
6.1%
217K shares
SC 13G/A · Feb 13, 2025
5.0%
174K shares
SC 13G · Jan 14, 2025
5.0%
177K shares
Mawer Investment Management Ltd.
SC 13G/A · Nov 8, 2024
2.6%
90K shares
Renaissance Technologies LLC 26-0385758
SC 13G · Feb 13, 2024
5.1%
177K shares
Neuberger Berman Group LLC 61-1591182
SC 13G · Feb 12, 2024
8.8%
308K shares
SC 13G/A · Jan 26, 2024
7.6%
264K shares
T. Rowe Price Investment Management, Inc. 85-4328500
SC 13G/A · Feb 14, 2023
4.1%
144K shares
Mawer Investment Management Ltd.
SC 13G/A · Feb 13, 2023
11.0%
377K shares
Nine Ten Capital Management LLC - IRS # 46-5220958
SC 13G/A · Feb 10, 2023
2.6%
91K shares
SC 13G/A · Jan 31, 2023
6.3%
217K shares
T. Rowe Price Investment Management, Inc. 85-4328500
SC 13G/A · Dec 12, 2022
5.1%
174K shares
T. Rowe Price Investment Management, Inc. 85-4328500
SC 13G · Aug 10, 2022
10.1%
349K shares
T. ROWE PRICE ASSOCIATES, INC. 52-0556948
SC 13G/A · Aug 10, 2022
0.0%
2K shares
T. ROWE PRICE ASSOCIATES, INC. 52-0556948
SC 13G/A · Feb 14, 2022
10.2%
372K shares
Mawer Investment Management Ltd.
SC 13G/A · Feb 10, 2022
10.7%
386K shares
SC 13G/A · Feb 1, 2022
6.4%
233K shares