Jenele C. Grassle sold Winmark Corp ($WINA) shares on the open market three times in the last year, totaling $3.55 million. Her most recent sale occurred on March 4, 2026. These sales rank her 2,422nd among 11,678 insiders by value sold, below the average of $8.59 million across 6.37 transactions. Grassle made no open market purchases during this period.
| Transaction Date | Company | Ticker | Insider Name | Title | Transaction Type | Security | Shares | Price | Shares Owned Following | Total Shares Outstanding | % of Owned | % of Outstanding |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| March 4, 2026 | WINMARK CORP | $WINA | GRASSLE JENELE C | Not found | S | Common Stock | 3900 | $475.80 | 2,500.0000 | 3,685,457 | 60.94% | 0.11% |
| Feb. 25, 2026 | WINMARK CORP | $WINA | GRASSLE JENELE C | Not found | M | Non-Employee Stock Option (right to buy) | 750 | $176.20 | 6,256.0000 | 3,685,457 | 10.71% | 0.02% |
| Feb. 25, 2026 | WINMARK CORP | $WINA | GRASSLE JENELE C | Not found | M | Non-Employee Stock Option (right to buy) | 750 | $164.84 | 6,256.0000 | 3,685,457 | 10.71% | 0.02% |
| Feb. 25, 2026 | WINMARK CORP | $WINA | GRASSLE JENELE C | Not found | M | Non-Employee Stock Option (right to buy) | 800 | $156.00 | 6,256.0000 | 3,685,457 | 11.34% | 0.02% |
| Feb. 25, 2026 | WINMARK CORP | $WINA | GRASSLE JENELE C | Not found | M | Non-Employee Stock Option (right to buy) | 800 | $143.20 | 6,256.0000 | 3,685,457 | 11.34% | 0.02% |
| Feb. 25, 2026 | WINMARK CORP | $WINA | GRASSLE JENELE C | Not found | M | Non-Employee Stock Option (right to buy) | 800 | $134.25 | 6,256.0000 | 3,685,457 | 11.34% | 0.02% |
| Feb. 25, 2026 | WINMARK CORP | $WINA | GRASSLE JENELE C | Not found | M | Common Stock | 750 | $176.20 | 6,400.0000 | 3,685,457 | 13.27% | 0.02% |
| Feb. 25, 2026 | WINMARK CORP | $WINA | GRASSLE JENELE C | Not found | M | Common Stock | 800 | $134.25 | 3,300.0000 | 3,685,457 | 32.00% | 0.02% |
| Feb. 25, 2026 | WINMARK CORP | $WINA | GRASSLE JENELE C | Not found | M | Common Stock | 800 | $143.20 | 4,100.0000 | 3,685,457 | 24.24% | 0.02% |
| Feb. 25, 2026 | WINMARK CORP | $WINA | GRASSLE JENELE C | Not found | M | Common Stock | 750 | $164.84 | 5,650.0000 | 3,685,457 | 15.31% | 0.02% |
| Feb. 25, 2026 | WINMARK CORP | $WINA | GRASSLE JENELE C | Not found | M | Common Stock | 800 | $156.00 | 4,900.0000 | 3,685,457 | 19.51% | 0.02% |
| Dec. 15, 2025 | WINMARK CORP | $WINA | GRASSLE JENELE C | Not found | A | Non-Employee Stock Option (right to buy) | 256 | $444.54 | 10,156.0000 | 3,693,154 | 2.59% | 0.01% |
| Nov. 19, 2025 | WINMARK CORP | $WINA | GRASSLE JENELE C | Not found | M | Non-Employee Stock Option (right to buy) | 800 | $98.25 | 9,900.0000 | 3,693,154 | 7.48% | 0.02% |
| Nov. 19, 2025 | WINMARK CORP | $WINA | GRASSLE JENELE C | Not found | M | Non-Employee Stock Option (right to buy) | 800 | $125.50 | 9,900.0000 | 3,693,154 | 7.48% | 0.02% |
| Nov. 19, 2025 | WINMARK CORP | $WINA | GRASSLE JENELE C | Not found | M | Non-Employee Stock Option (right to buy) | 800 | $122.50 | 9,900.0000 | 3,693,154 | 7.48% | 0.02% |
| Nov. 21, 2025 | WINMARK CORP | $WINA | GRASSLE JENELE C | Not found | S | Common Stock | 2400 | $420.87 | 2,500.0000 | 3,693,154 | 48.98% | 0.06% |
| Nov. 19, 2025 | WINMARK CORP | $WINA | GRASSLE JENELE C | Not found | M | Common Stock | 800 | $122.50 | 4,900.0000 | 3,693,154 | 19.51% | 0.02% |
| Nov. 19, 2025 | WINMARK CORP | $WINA | GRASSLE JENELE C | Not found | M | Common Stock | 800 | $125.50 | 4,100.0000 | 3,693,154 | 24.24% | 0.02% |
| Nov. 19, 2025 | WINMARK CORP | $WINA | GRASSLE JENELE C | Not found | M | Common Stock | 800 | $98.25 | 3,300.0000 | 3,693,154 | 32.00% | 0.02% |
| June 1, 2025 | WINMARK CORP | $WINA | GRASSLE JENELE C | Not found | A | Non-Employee Stock Option (right to buy) | 280 | $424.82 | 12,300.0000 | 3,672,943 | 2.33% | 0.01% |
| May 16, 2025 | WINMARK CORP | $WINA | GRASSLE JENELE C | Not found | S | Common Stock | 1600 | $428.23 | 2,500.0000 | 3,672,943 | 39.02% | 0.04% |
| May 12, 2025 | WINMARK CORP | $WINA | GRASSLE JENELE C | Not found | M | Common Stock | 800 | $91.93 | 3,300.0000 | 3,672,943 | 32.00% | 0.02% |
| May 12, 2025 | WINMARK CORP | $WINA | GRASSLE JENELE C | Not found | M | Common Stock | 800 | $90.99 | 4,100.0000 | 3,672,943 | 24.24% | 0.02% |
| May 12, 2025 | WINMARK CORP | $WINA | GRASSLE JENELE C | Not found | M | Non-Employee Stock Option (right to buy) | 800 | $91.93 | 12,020.0000 | 3,672,943 | 6.24% | 0.02% |
| May 12, 2025 | WINMARK CORP | $WINA | GRASSLE JENELE C | Not found | M | Non-Employee Stock Option (right to buy) | 800 | $90.99 | 12,020.0000 | 3,672,943 | 6.24% | 0.02% |
| Dec. 9, 2024 | WINMARK CORP | $WINA | GRASSLE JENELE C | Not found | A | Non-Employee Stock Option (right to buy) | 300 | $400.97 | 13,620.0000 | 3,671,121 | 2.25% | 0.01% |
| June 1, 2024 | WINMARK CORP | $WINA | GRASSLE JENELE C | Not found | A | Non-Employee Stock Option (right to buy) | 300 | $355.90 | 13,320.0000 | 3,661,367 | 2.30% | 0.01% |
| Dec. 11, 2023 | WINMARK CORP | $WINA | GRASSLE JENELE C | Not found | A | Non-Employee Stock Option (right to buy) | 240 | $446.68 | 13,020.0000 | 3,653,730 | 1.88% | 0.01% |
| June 1, 2023 | WINMARK CORP | $WINA | GRASSLE JENELE C | Not found | A | Non-Employee Stock Option (right to buy) | 380 | $325.99 | 12,780.0000 | 3,594,234 | 3.06% | 0.01% |
| May 8, 2023 | WINMARK CORP | $WINA | GRASSLE JENELE C | Not found | S | Common Stock | 3000 | $314.16 | 2,500.0000 | 3,594,234 | 54.55% | 0.08% |
| May 2, 2023 | WINMARK CORP | $WINA | GRASSLE JENELE C | Not found | M | Common Stock | 1000 | $66.29 | 4,500.0000 | 3,594,234 | 28.57% | 0.03% |
| May 2, 2023 | WINMARK CORP | $WINA | GRASSLE JENELE C | Not found | M | Non-Employee Stock Option (right to buy) | 1000 | $80.32 | 12,400.0000 | 3,594,234 | 7.46% | 0.03% |
| May 2, 2023 | WINMARK CORP | $WINA | GRASSLE JENELE C | Not found | M | Non-Employee Stock Option (right to buy) | 1000 | $66.29 | 12,400.0000 | 3,594,234 | 7.46% | 0.03% |
| May 2, 2023 | WINMARK CORP | $WINA | GRASSLE JENELE C | Not found | M | Common Stock | 1000 | $80.32 | 5,500.0000 | 3,594,234 | 22.22% | 0.03% |
| May 2, 2023 | WINMARK CORP | $WINA | GRASSLE JENELE C | Not found | M | Non-Employee Stock Option (right to buy) | 1000 | $82.72 | 12,400.0000 | 3,594,234 | 7.46% | 0.03% |
| May 2, 2023 | WINMARK CORP | $WINA | GRASSLE JENELE C | Not found | M | Common Stock | 1000 | $82.72 | 3,500.0000 | 3,594,234 | 40.00% | 0.03% |