Sweden Software & IT Services

Coffee Stain Group AB (COFFEE-B)

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Coffee Stain Group AB recorded one significant insider trading transaction recently. Board member Lars Wingefors purchased shares valued at approximately 31.3 million SEK on August 26, 2026. This activity follows a period where the company reported a negative earnings report, while the stock price has demonstrated a 7.5% increase over the past ninety days.
Ticker: COFFEE-B Exchange: STO
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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 Coffee Stain Group AB. Upgrade to see score, net flow, insiders and the full signal context.

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Top insiders
Trades
Abbreviations B: Buy, S: Sell, PP: Planned purchase, PlS: Planned sale, PrS: Proposed sale, O: Option / Other
3.9
Lars Wingefors Member of the Board of Directors Director
Through Lars Wingefors AB, a closely affiliated person
Transaction date
Purchase
Price
383.46
Quantity 42,433
Value SEK1,791,623
2.6
Anton Westbergh Chief Executive Officer (CEO)/Managing Directory Officer
Through Inwestbergh AB, a closely affiliated person
Transaction date
Purchase
Price
29.03
Quantity 78,323
Value SEK2,846,664
2.6
Anton Westbergh Chief Executive Officer (CEO)/Managing Directory Officer
Through Inwestbergh AB, a closely affiliated person
Transaction date
Purchase
Price
443.36
Quantity 82,444
Value SEK1,741,142
1.6
Erik Sunnerdahl Chief Financial Officer (CFO) Officer
Transaction date
Purchase
Price
19.86
Quantity 15,000
Value SEK297,825
2.6
Anton Westbergh Chief Executive Officer (CEO)/Managing Directory Officer
Through Inwestbergh AB, a closely affiliated person
Transaction date
Purchase
Price
21.03
Quantity 120,000
Value SEK2,523,336
1.6
Erik Sunnerdahl Chief Financial Officer (CFO) Officer
Transaction date
Purchase
Price
19.29
Quantity 13,000
Value SEK250,809
2.6
Anton Westbergh Chief Executive Officer (CEO)/Managing Directory Officer
Through Inwestbergh AB, a closely affiliated person
Transaction date
Purchase
Price
21.06
Quantity 120,000
Value SEK2,527,428
1.6
Erik Sunnerdahl Chief Financial Officer (CFO) Officer
Transaction date
Purchase
Price
17.39
Quantity 14,954
Value SEK259,990
2.8
Karl Jacob Mathias Jonmyren Chairman of the Board of Directors Director
Transaction date
Purchase
Price
16.92
Quantity 50,000
Value SEK845,965
3.9
Lars Wingefors Member of the Board of Directors Director
Through Lars Wingefors AB, a closely affiliated person
Transaction date
Purchase
Price
17.93
Quantity 275,000
Value SEK4,930,200
3.9
Lars Wingefors Member of the Board of Directors Director
Through Lars Wingefors AB, a closely affiliated person
Transaction date
Purchase
Price
18.43
Quantity 550,000
Value SEK10,135,455
2.6
Anton Westbergh Chief Executive Officer (CEO)/Managing Directory Officer
Through Inwestbergh AB, a closely affiliated person
Transaction date
Purchase
Price
22.82
Quantity 200,000
Value SEK4,563,080
3.9
Lars Wingefors Member of the Board of Directors Director
Through Lars Wingefors AB, a closely affiliated person
Transaction date
Purchase
Price
22.56
Quantity 51,721
Value SEK1,166,603
3.9
Lars Wingefors Member of the Board of Directors Director
Through Lars Wingefors AB, a closely affiliated person
Transaction date
Purchase
Price
22.64
Quantity 448,279
Value SEK10,149,037
0.7
Jacob Jonmyren Chairman of the Board of Directors Director
Through Jacob Jonmyren Kapital Aktiebolag, a closely affiliated person
Transaction date
Purchase
Price
22.00
Quantity 54,667
Value SEK1,202,674
2.6
Anton Westbergh Chief Executive Officer (CEO)/Managing Directory Officer
Through Inwestbergh AB, a closely affiliated person
Transaction date
Purchase
Price
22.07
Quantity 50,000
Value SEK1,103,500
1.6
Erik Sunnerdahl Chief Financial Officer (CFO) Officer
Transaction date
Purchase
Price
22.12
Quantity 90,909
Value SEK2,010,480
2.6
Anton Westbergh Chief Executive Officer (CEO)/Managing Directory Officer
Through Inwestbergh AB, a closely affiliated person
Transaction date
Purchase
Price
23.03
Quantity 100,000
Value SEK2,302,500
2.8
Karl Jacob Mathias Jonmyren Chairman of the Board of Directors Director
Transaction date
Purchase
Price
22.95
Quantity 40,000
Value SEK917,880
Notification date Transaction date B/S Transaction type Insider and/or position Nb. shares
Price
Value 		Number of shares Price Value Details
2026-08-26 2026-08-26 B Purchase
3.9
Lars Wingefors

Member of the Board of Directors

Through Lars Wingefors AB, a closely affiliated person Director
42,433
383.46
SEK1,791,623 		42,433 383.46 SEK1,791,623
2026-05-22 2026-05-22 B Purchase
2.6
Anton Westbergh

Chief Executive Officer (CEO)/Managing Directory

Through Inwestbergh AB, a closely affiliated person Officer
78,323
29.03
SEK2,846,664 		78,323 29.03 SEK2,846,664
2026-05-22 2026-05-21 B Purchase
2.6
Anton Westbergh

Chief Executive Officer (CEO)/Managing Directory

Through Inwestbergh AB, a closely affiliated person Officer
82,444
443.36
SEK1,741,142 		82,444 443.36 SEK1,741,142
2026-05-21 2026-05-21 B Purchase
1.6
Erik Sunnerdahl

Chief Financial Officer (CFO)

Officer
15,000
19.86
SEK297,825 		15,000 19.86 SEK297,825
2026-05-20 2026-05-20 B Purchase
2.6
Anton Westbergh

Chief Executive Officer (CEO)/Managing Directory

Through Inwestbergh AB, a closely affiliated person Officer
120,000
21.03
SEK2,523,336 		120,000 21.03 SEK2,523,336
2026-05-19 2026-05-18 B Purchase
1.6
Erik Sunnerdahl

Chief Financial Officer (CFO)

Officer
13,000
19.29
SEK250,809 		13,000 19.29 SEK250,809
2026-05-12 2026-05-12 B Purchase
2.6
Anton Westbergh

Chief Executive Officer (CEO)/Managing Directory

Through Inwestbergh AB, a closely affiliated person Officer
120,000
21.06
SEK2,527,428 		120,000 21.06 SEK2,527,428
2026-02-20 2026-02-19 B Purchase
1.6
Erik Sunnerdahl

Chief Financial Officer (CFO)

Officer
14,954
17.39
SEK259,990 		14,954 17.39 SEK259,990
2026-02-18 2026-02-18 B Purchase
2.8
Karl Jacob Mathias Jonmyren

Chairman of the Board of Directors

Director
50,000
16.92
SEK845,965 		50,000 16.92 SEK845,965
2026-02-06 2026-02-06 B Purchase
3.9
Lars Wingefors

Member of the Board of Directors

Through Lars Wingefors AB, a closely affiliated person Director
275,000
17.93
SEK4,930,200 		275,000 17.93 SEK4,930,200
2026-02-04 2026-02-04 B Purchase
3.9
Lars Wingefors

Member of the Board of Directors

Through Lars Wingefors AB, a closely affiliated person Director
550,000
18.43
SEK10,135,455 		550,000 18.43 SEK10,135,455
2025-12-23 2025-12-19 B Purchase
2.6
Anton Westbergh

Chief Executive Officer (CEO)/Managing Directory

Through Inwestbergh AB, a closely affiliated person Officer
200,000
22.82
SEK4,563,080 		200,000 22.82 SEK4,563,080
2025-12-19 2025-12-19 B Purchase
3.9
Lars Wingefors

Member of the Board of Directors

Through Lars Wingefors AB, a closely affiliated person Director
51,721
22.56
SEK1,166,603 		51,721 22.56 SEK1,166,603
2025-12-19 2025-12-18 B Purchase
3.9
Lars Wingefors

Member of the Board of Directors

Through Lars Wingefors AB, a closely affiliated person Director
448,279
22.64
SEK10,149,037 		448,279 22.64 SEK10,149,037
2025-12-16 2025-12-15 B Purchase
0.7
Jacob Jonmyren

Chairman of the Board of Directors

Through Jacob Jonmyren Kapital Aktiebolag, a closely affiliated person Director
54,667
22.00
SEK1,202,674 		54,667 22.00 SEK1,202,674
2025-12-15 2025-12-15 B Purchase
2.6
Anton Westbergh

Chief Executive Officer (CEO)/Managing Directory

Through Inwestbergh AB, a closely affiliated person Officer
50,000
22.07
SEK1,103,500 		50,000 22.07 SEK1,103,500
2025-12-15 2025-12-15 B Purchase
1.6
Erik Sunnerdahl

Chief Financial Officer (CFO)

Officer
90,909
22.12
SEK2,010,480 		90,909 22.12 SEK2,010,480
2025-12-15 2025-12-12 B Purchase
2.6
Anton Westbergh

Chief Executive Officer (CEO)/Managing Directory

Through Inwestbergh AB, a closely affiliated person Officer
100,000
23.03
SEK2,302,500 		100,000 23.03 SEK2,302,500
2025-12-12 2025-12-11 B Purchase
2.8
Karl Jacob Mathias Jonmyren

Chairman of the Board of Directors

Director
40,000
22.95
SEK917,880 		40,000 22.95 SEK917,880
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