6 institutions reported holding $14.7M of Winmark Corp. (WINA) in SEC 13F filings for 2026-06-30. Largest institutional holders: CONGRESS ASSET MANAGEMENT CO ($14.6M), GAMMA Investing LLC ($41,885), Versant Capital Management, Inc ($17,346), CoreCap Advisors, LLC ($1,269), MassMutual Private Wealth & Trust, FSB ($846). Source: SEC Form 13F.
| Rank | Institution | Value | Shares | Change |
|---|---|---|---|---|
| 1 | CONGRESS ASSET MANAGEMENT CO | $14.6M | 34,581 | Added |
| 2 | GAMMA Investing LLC | $41,885 | 99 | Added |
| 3 | Versant Capital Management, Inc | $17,346 | 41 | Trimmed |
| 4 | CoreCap Advisors, LLC | $1,269 | 3 | New |
| 5 | MassMutual Private Wealth & Trust, FSB | $846 | 2 | New |
| 6 | Retirement Wealth Solutions LLC | $0 | 0 | Exited |
Source: SEC Form 13F filings · as of 2026-06-30