United States

Winmark Corp (WINA)

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Winmark Corp has seen consistent insider selling over the past 90 days, totaling approximately $1.62 million in transactions. Director Jenele C. Grassle has been the primary seller during this period. These divestments occur against a backdrop of a 10.2% decline in stock price over the last quarter and a recent earnings report that missed expectations.
Ticker: WINA Exchange: NMS
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• Purchase • Sale • Planned purchase • Planned sale Net purchase Net sale Buy signal Sell signal Earnings
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Insider trades have triggered activity signals for Winmark Corp. Upgrade to see score, net flow, insiders and the full signal context.

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Proposed sale 14 Jul 2026
Value US$4,483,304.36 | Price 152.99 | Shares 75,530
Abbreviations B: Buy, S: Sell, PP: Planned purchase, PlS: Planned sale, PrS: Proposed sale, O: Option / Other
Notification date Transaction date B/S Transaction type Insider and/or position Nb. shares
Price
Value 		Number of shares Price Value Details
2026-07-14 2026-07-14 PrS Proposed sale
3.0
GRASSLE JENELE C

Director

Non-Executive Director
75,530
152.99
US$4,483,304 		75,530 152.99 US$4,483,304
2026-05-07 2026-05-07 PrS Proposed sale
3.0
GRASSLE JENELE C

Former Affiliate
95,384
308.32
US$3,135,853 		95,384 308.32 US$3,135,853
2026-03-05 2026-03-04 S Sale
3.0
GRASSLE JENELE C
Non-Executive Director
49,763 +15.3%
251.74
US$1,264,424 		49,763 +15.3% 251.74 US$1,264,424
2026-03-04 2026-03-04 PrS Proposed sale
3.0
GRASSLE JENELE C

Director

Non-Executive Director
3,900
480.67
US$1,874,613 		3,900 480.67 US$1,874,613
2026-03-03 2026-03-03 S Sale
3.2
Tomlinson Percy C Jr
Non-Executive Director
1,660 -67.5%
460.52
US$764,463 		1,660 -67.5% 460.52 US$764,463
2026-03-03 2026-03-03 PrS Proposed sale
3.2
Tomlinson Family Rev Tr DTD 8/25/16

Board Member
1,660
452.95
US$751,897 		1,660 452.95 US$751,897
2025-11-21 2025-11-21 PrS Proposed sale
3.0
GRASSLE JENELE C

Director

Non-Executive Director
2,400
417.44
US$1,001,856 		2,400 417.44 US$1,001,856
2025-11-21 2025-11-21 S Sale
3.0
GRASSLE JENELE C
Non-Executive Director
2,400 -49.0%
420.87
US$1,010,088 		2,400 -49.0% 420.87 US$1,010,088
2025-10-24 2025-10-24 PrS Proposed sale
2.4
Renae Gaudette

COO
1,200
417.05
US$500,460 		1,200 417.05 US$500,460
2025-10-24 2025-10-24 S Sale
2.4
Gaudette Renae M.

CHIEF OPERATING OFFICER

Officer
1,100 -5.5%
415.43
US$456,973 		1,100 -5.5% 415.43 US$456,973
2025-10-24 2025-10-24 S Sale
2.4
Gaudette Renae M.

CHIEF OPERATING OFFICER

Officer
100 -0.5%
435.62
US$43,562 		100 -0.5% 435.62 US$43,562
2025-09-18 2025-09-17 S Sale
3.0
Barbetta Lawrence A
Non-Executive Director
636 -49.5%
504.91
US$321,123 		636 -49.5% 504.91 US$321,123
2025-09-18 2025-09-17 S Sale
3.0
Barbetta Lawrence A
Non-Executive Director
216 -14.4%
505.33
US$109,151 		216 -14.4% 505.33 US$109,151
2025-09-17 2025-09-17 PrS Proposed sale
3.0
Barbetta Lawrence A

Director

Non-Executive Director
852
505.02
US$430,274 		852 505.02 US$430,274
2025-08-28 2025-08-27 S Sale
2.8
HEFFES BRETT D

CHAIR AND CEO

Executive Director
170 -0.1%
451.76
US$76,799 		170 -0.1% 451.76 US$76,799
2025-08-28 2025-08-27 S Sale
2.8
HEFFES BRETT D

CHAIR AND CEO

Executive Director
1,630 -1.4%
452.72
US$737,934 		1,630 -1.4% 452.72 US$737,934
2025-08-28 2025-08-27 S Sale
2.8
HEFFES BRETT D

CHAIR AND CEO

Executive Director
1,186 -1.0%
454.03
US$538,480 		1,186 -1.0% 454.03 US$538,480
2025-08-28 2025-08-27 S Sale
2.8
HEFFES BRETT D

CHAIR AND CEO

Executive Director
1,985 -1.7%
454.95
US$903,076 		1,985 -1.7% 454.95 US$903,076
2025-08-27 2025-08-27 PrS Proposed sale
2.8
HEFFES BRETT D

Officer; Director

Executive Director
4,971
449.22
US$2,233,073 		4,971 449.22 US$2,233,073
2025-08-28 2025-08-26 S Sale
2.8
HEFFES BRETT D

CHAIR AND CEO

Executive Director
641 -0.6%
452.07
US$289,777 		641 -0.6% 452.07 US$289,777
2025-08-28 2025-08-26 S Sale
2.8
HEFFES BRETT D

CHAIR AND CEO

Executive Director
800 -0.7%
453.82
US$363,056 		800 -0.7% 453.82 US$363,056
2025-08-28 2025-08-26 S Sale
2.8
HEFFES BRETT D

CHAIR AND CEO

Executive Director
400 -0.3%
456.97
US$182,788 		400 -0.3% 456.97 US$182,788
2025-08-28 2025-08-26 S Sale
2.8
HEFFES BRETT D

CHAIR AND CEO

Executive Director
600 -0.5%
458.65
US$275,190 		600 -0.5% 458.65 US$275,190
2025-08-26 2025-08-26 PrS Proposed sale
2.8
HEFFES BRETT D

Officer; Director

Executive Director
2,441
457.50
US$1,116,758 		2,441 457.50 US$1,116,758
2025-08-13 2025-08-13 B Purchase
3.0
SPRENGER GINA DECARO
Non-Executive Director
250 +inf%
410.77
US$102,692 		250 +inf% 410.77 US$102,692
2025-06-02 2025-05-30 S Sale
2.7
Ishaug Anthony D

CHIEF FINANCIAL OFFICER

Officer
184 -0.3%
420.60
US$77,390 		184 -0.3% 420.60 US$77,390
2025-06-02 2025-05-30 S Sale
2.7
Ishaug Anthony D

CHIEF FINANCIAL OFFICER

Officer
457 -0.8%
422.00
US$192,854 		457 -0.8% 422.00 US$192,854
2025-06-02 2025-05-30 S Sale
2.7
Ishaug Anthony D

CHIEF FINANCIAL OFFICER

Officer
300 -0.5%
423.13
US$126,939 		300 -0.5% 423.13 US$126,939
2025-06-02 2025-05-30 S Sale
2.7
Ishaug Anthony D

CHIEF FINANCIAL OFFICER

Officer
2,859 -4.7%
427.07
US$1,220,993 		2,859 -4.7% 427.07 US$1,220,993
2025-06-02 2025-05-30 S Sale
2.7
Ishaug Anthony D

CHIEF FINANCIAL OFFICER

Officer
200 -0.3%
428.14
US$85,628 		200 -0.3% 428.14 US$85,628
2025-05-30 2025-05-30 PrS Proposed sale
2.7
Ishaug Anthony D

Officer

Officer
4,000
428.53
US$1,714,120 		4,000 428.53 US$1,714,120
2025-05-19 2025-05-16 S Sale
3.0
GRASSLE JENELE C
Non-Executive Director
1,600 -39.0%
428.23
US$685,168 		1,600 -39.0% 428.23 US$685,168
2025-05-15 2025-05-15 PrS Proposed sale
3.0
GRASSLE JENELE C

Director

Non-Executive Director
1,600
418.69
US$669,904 		1,600 418.69 US$669,904
2025-05-06 2025-05-06 PrS Proposed sale
2.7
Ishaug Anthony D

Officer

Officer
1,600
368.48
US$589,568 		1,600 368.48 US$589,568
2025-05-06 2025-05-06 S Sale
2.7
Ishaug Anthony D

CHIEF FINANCIAL OFFICER

Officer
308 -0.5%
365.09
US$112,448 		308 -0.5% 365.09 US$112,448
2025-05-06 2025-05-06 S Sale
2.7
Ishaug Anthony D

CHIEF FINANCIAL OFFICER

Officer
89 -0.2%
365.61
US$32,539 		89 -0.2% 365.61 US$32,539
2025-05-06 2025-05-06 S Sale
2.7
Ishaug Anthony D

CHIEF FINANCIAL OFFICER

Officer
1,034 -1.8%
367.03
US$379,509 		1,034 -1.8% 367.03 US$379,509
2025-05-06 2025-05-06 S Sale
2.7
Ishaug Anthony D

CHIEF FINANCIAL OFFICER

Officer
169 -0.3%
368.14
US$62,216 		169 -0.3% 368.14 US$62,216
2024-11-27 2024-11-25 S Sale
3.0
Barbetta Lawrence A
Non-Executive Director
1,035 -40.8%
426.02
US$440,931 		1,035 -40.8% 426.02 US$440,931
2024-11-27 2024-11-25 S Sale
3.0
Barbetta Lawrence A
Non-Executive Director
1,986 -43.9%
425.21
US$844,467 		1,986 -43.9% 425.21 US$844,467
2024-11-26 2024-11-25 S Sale
2.7
OLSON RONALD G
Large shareholder
1,400 -0.9%
424.35
US$594,090 		1,400 -0.9% 424.35 US$594,090
2024-11-26 2024-11-25 S Sale
2.7
OLSON RONALD G
Large shareholder
2,259 -1.5%
424.12
US$958,078 		2,259 -1.5% 424.12 US$958,078
2024-11-25 2024-11-25 PrS Proposed sale
3.0
Barbetta Lawrence A

Director

Non-Executive Director
4,500
425.49
US$1,914,705 		4,500 425.49 US$1,914,705
2024-11-25 2024-11-25 PrS Proposed sale
2.7
OLSON RONALD G

10% Stockholder

Large shareholder
1,400
424.35
US$594,089 		1,400 424.35 US$594,089
2024-11-26 2024-11-22 S Sale
2.7
OLSON RONALD G
Large shareholder
1,241 -0.8%
407.40
US$505,578 		1,241 -0.8% 407.40 US$505,578
2024-11-26 2024-11-22 S Sale
2.7
OLSON RONALD G
Large shareholder
1,500 -1.0%
407.95
US$611,930 		1,500 -1.0% 407.95 US$611,930
2024-11-22 2024-11-22 PrS Proposed sale
2.7
OLSON RONALD G

10% Stockholder

Large shareholder
5,000
407.95
US$2,039,750 		5,000 407.95 US$2,039,750
2024-11-07 2024-11-06 S Sale
2.8
HEFFES BRETT D

CHAIR AND CEO

Executive Director
300 -0.3%
400.50
US$120,150 		300 -0.3% 400.50 US$120,150
2024-11-07 2024-11-06 S Sale
2.8
HEFFES BRETT D

CHAIR AND CEO

Executive Director
1,598 -1.4%
401.94
US$642,300 		1,598 -1.4% 401.94 US$642,300
2024-11-07 2024-11-06 S Sale
2.8
HEFFES BRETT D

CHAIR AND CEO

Executive Director
1,100 -1.0%
402.76
US$443,036 		1,100 -1.0% 402.76 US$443,036
2024-11-07 2024-11-06 S Sale
2.8
HEFFES BRETT D

CHAIR AND CEO

Executive Director
502 -0.4%
405.00
US$203,310 		502 -0.4% 405.00 US$203,310
2024-11-06 2024-11-06 PrS Proposed sale
2.8
HEFFES BRETT D

Officer

Officer
500
405.79
US$202,895 		500 405.79 US$202,895
2024-11-07 2024-11-05 S Sale
2.8
HEFFES BRETT D

CHAIR AND CEO

Executive Director
1,900 -1.7%
390.00
US$741,000 		1,900 -1.7% 390.00 US$741,000
2024-11-07 2024-11-05 S Sale
2.8
HEFFES BRETT D

CHAIR AND CEO

Executive Director
2,113 -1.8%
392.92
US$830,240 		2,113 -1.8% 392.92 US$830,240
2024-11-07 2024-11-05 S Sale
2.8
HEFFES BRETT D

CHAIR AND CEO

Executive Director
166 -0.1%
393.64
US$65,344 		166 -0.1% 393.64 US$65,344
2024-11-07 2024-11-05 S Sale
2.8
HEFFES BRETT D

CHAIR AND CEO

Executive Director
1,150 -1.0%
395.00
US$454,250 		1,150 -1.0% 395.00 US$454,250
2024-11-07 2024-11-05 S Sale
2.8
HEFFES BRETT D

CHAIR AND CEO

Executive Director
168 -0.1%
395.49
US$66,442 		168 -0.1% 395.49 US$66,442
2024-11-05 2024-11-05 PrS Proposed sale
2.8
HEFFES BRETT D

Officer

Officer
8,497
389.04
US$3,305,673 		8,497 389.04 US$3,305,673
2024-10-28 2024-10-25 S Sale
2.4
Gaudette Renae M.

CHIEF OPERATING OFFICER

Officer
1,500 -9.1%
380.11
US$570,165 		1,500 -9.1% 380.11 US$570,165
2024-10-25 2024-10-25 PrS Proposed sale
2.4
Gaudette Renae M.

Officer

Officer
1,500
380.03
US$570,044 		1,500 380.03 US$570,044
2024-10-18 2024-10-18 PrS Proposed sale
2.7
Ishaug Anthony D

Officer

Officer
2,400
382.02
US$916,848 		2,400 382.02 US$916,848
2024-10-18 2024-10-18 S Sale
2.7
Ishaug Anthony D

CHIEF FINANCIAL OFFICER

Officer
400 -0.7%
380.14
US$152,056 		400 -0.7% 380.14 US$152,056
2024-10-18 2024-10-18 S Sale
2.7
Ishaug Anthony D

CHIEF FINANCIAL OFFICER

Officer
100 -0.2%
381.09
US$38,109 		100 -0.2% 381.09 US$38,109
2024-10-18 2024-10-18 S Sale
2.7
Ishaug Anthony D

CHIEF FINANCIAL OFFICER

Officer
1,800 -3.2%
383.06
US$689,508 		1,800 -3.2% 383.06 US$689,508
2024-10-18 2024-10-18 S Sale
2.7
Ishaug Anthony D

CHIEF FINANCIAL OFFICER

Officer
100 -0.2%
385.46
US$38,546 		100 -0.2% 385.46 US$38,546
2024-08-02 2024-07-31 S Sale
3.0
Barbetta Lawrence A
Non-Executive Director
300 -6.2%
399.12
US$119,736 		300 -6.2% 399.12 US$119,736
2024-08-02 2024-07-31 S Sale
3.0
Barbetta Lawrence A
Non-Executive Director
521 -9.8%
396.03
US$206,332 		521 -9.8% 396.03 US$206,332
2024-08-02 2024-07-31 S Sale
3.0
Barbetta Lawrence A
Non-Executive Director
1,091 -17.0%
395.14
US$431,098 		1,091 -17.0% 395.14 US$431,098
2024-08-02 2024-07-31 S Sale
3.0
Barbetta Lawrence A
Non-Executive Director
500 -7.2%
392.61
US$196,305 		500 -7.2% 392.61 US$196,305
2024-07-30 2024-07-29 S Sale
3.0
Barbetta Lawrence A
Non-Executive Director
44 -0.6%
400.32
US$17,614 		44 -0.6% 400.32 US$17,614
2024-07-30 2024-07-29 S Sale
3.0
Barbetta Lawrence A
Non-Executive Director
80 -1.1%
405.00
US$32,400 		80 -1.1% 405.00 US$32,400
2024-07-30 2024-07-26 S Sale
3.0
Barbetta Lawrence A
Non-Executive Director
583 -7.6%
405.09
US$236,167 		583 -7.6% 405.09 US$236,167
2024-07-26 2024-07-26 PrS Proposed sale
3.0
Barbetta Lawrence A

Director

Non-Executive Director
5,000
405.00
US$2,025,000 		5,000 405.00 US$2,025,000
2024-05-16 2024-05-16 PrS Proposed sale
3.0
Mark L Wilson Irrevocable Trust II

Board Member
3,788
372.93
US$1,412,676 		3,788 372.93 US$1,412,676
2024-05-13 2024-05-13 PrS Proposed sale
3.0
MaNa Fund LLC

Board Member
3,950
378.12
US$1,493,578 		3,950 378.12 US$1,493,578
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