Sweden Homebuilding & Construction Supplies

JM AB (JM)

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JM AB experienced significant insider trading activity recently, with nine buy transactions totaling over 500,000 SEK. Six distinct insiders, including the CEO, acquired shares following a challenging earnings report. Despite a 7.9% price increase over the last quarter, the stock remains well below its yearly peak, reflecting ongoing market volatility.
Ticker: JM 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 JM 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
1.5
Anders Wimmerstedt Other member of the company's administrative, management or supervisory body
Transaction date
Purchase
Price
23.47
Quantity 48,057
Value SEK4,850,419
1.5
Anders Wimmerstedt Other member of the company's administrative, management or supervisory body
Transaction date
Purchase
Price
313.42
Quantity 4,428
Value SEK1,442,267
1.5
Anders Wimmerstedt Employee Representative of the Board of Directors or deputy Employee Representative of the Board of Directors Director
Transaction date
Purchase
Price
490.49
Quantity 18,119
Value SEK3,452,597
1.5
Anders Wimmerstedt Employee Representative of the Board of Directors or deputy Employee Representative of the Board of Directors Director
Transaction date
Purchase
Price
121.35
Quantity 190
Value SEK23,056
2.1
Mikael Anders Åslund Chief Executive Officer (CEO)/Managing Directory Officer
Transaction date
Purchase
Price
121.35
Quantity 947
Value SEK114,920
Maria Branestam Other member of the company's administrative, management or supervisory body
Transaction date
Purchase
Price
121.35
Quantity 158
Value SEK19,174
3.1
Susanne Persson Other member of the company's administrative, management or supervisory body
Transaction date
Purchase
Price
121.35
Quantity 567
Value SEK68,806
3.1
Carolina Detterfelt Employee Representative of the Board of Directors or deputy Employee Representative of the Board of Directors Director
Transaction date
Purchase
Price
118.20
Quantity 1,015
Value SEK119,973
2.3
Jenny Larsson Member of the Board of Directors Director
Transaction date
Purchase
Price
119.10
Quantity 940
Value SEK111,954
3.1
Carolina Detterfelt Employee Representative of the Board of Directors or deputy Employee Representative of the Board of Directors Director
Transaction date
Purchase
Price
113.70
Quantity 1,319
Value SEK149,970
2.2
Henrik Brinck Landelius Other member of the company's administrative, management or supervisory body
Transaction date
Purchase
Price
116.42
Quantity 2,576
Value SEK299,908
Maria Branestam Other member of the company's administrative, management or supervisory body
Transaction date
Purchase
Price
116.42
Quantity 1,288
Value SEK149,950
2.9
Tobias Bjurling Chief Financial Officer (CFO) Officer
Transaction date
Purchase
Price
116.42
Quantity 858
Value SEK99,892
3.1
Susanne Persson Other member of the company's administrative, management or supervisory body
Transaction date
Purchase
Price
116.42
Quantity 2,576
Value SEK299,908
3.1
Carolina Detterfelt Employee Representative of the Board of Directors or deputy Employee Representative of the Board of Directors Director
Transaction date
Purchase
Price
116.30
Quantity 3,009
Value SEK349,947
2.1
Mikael Anders Åslund Chief Executive Officer (CEO)/Managing Directory Officer
Transaction date
Purchase
Price
118.45
Quantity 166
Value SEK19,663
3.1
Susanne Persson Other member of the company's administrative, management or supervisory body
Transaction date
Purchase
Price
118.45
Quantity 105
Value SEK12,438
2.9
Tobias Bjurling Chief Financial Officer (CFO) Officer
Transaction date
Purchase
Price
118.45
Quantity 29
Value SEK3,435
3.1
Carolina Detterfelt Employee Representative of the Board of Directors or deputy Employee Representative of the Board of Directors Director
Transaction date
Purchase
Price
117.40
Quantity 1,202
Value SEK141,115
3.1
Carolina Detterfelt Employee Representative of the Board of Directors or deputy Employee Representative of the Board of Directors Director
Transaction date
Purchase
Price
123.80
Quantity 2,423
Value SEK299,967
Notification date Transaction date B/S Transaction type Insider and/or position Nb. shares
Price
Value 		Number of shares Price Value Details
2026-07-23 2026-07-15 B Purchase
1.5
Anders Wimmerstedt

Other member of the company's administrative, management or supervisory body
48,057
23.47
SEK4,850,419 		48,057 23.47 SEK4,850,419
2026-07-23 2026-07-15 B Purchase
1.5
Anders Wimmerstedt

Other member of the company's administrative, management or supervisory body
4,428
313.42
SEK1,442,267 		4,428 313.42 SEK1,442,267
2026-07-22 2026-07-15 B Purchase
1.5
Anders Wimmerstedt

Employee Representative of the Board of Directors or deputy Employee Representative of the Board of Directors

Director
18,119
490.49
SEK3,452,597 		18,119 490.49 SEK3,452,597
2026-07-22 2026-07-15 B Purchase
1.5
Anders Wimmerstedt

Employee Representative of the Board of Directors or deputy Employee Representative of the Board of Directors

Director
190
121.35
SEK23,056 		190 121.35 SEK23,056
2026-07-18 2026-07-15 B Purchase
2.1
Mikael Anders Åslund

Chief Executive Officer (CEO)/Managing Directory

Officer
947
121.35
SEK114,920 		947 121.35 SEK114,920
2026-07-16 2026-07-15 B Purchase
Maria Branestam

Other member of the company's administrative, management or supervisory body
158
121.35
SEK19,174 		158 121.35 SEK19,174
2026-07-16 2026-07-15 B Purchase
3.1
Susanne Persson

Other member of the company's administrative, management or supervisory body
567
121.35
SEK68,806 		567 121.35 SEK68,806
2026-07-16 2026-07-13 B Purchase
3.1
Carolina Detterfelt

Employee Representative of the Board of Directors or deputy Employee Representative of the Board of Directors

Director
1,015
118.20
SEK119,973 		1,015 118.20 SEK119,973
2026-07-13 2026-07-13 B Purchase
2.3
Jenny Larsson

Member of the Board of Directors

Director
940
119.10
SEK111,954 		940 119.10 SEK111,954
2026-06-08 2026-06-08 B Purchase
3.1
Carolina Detterfelt

Employee Representative of the Board of Directors or deputy Employee Representative of the Board of Directors

Director
1,319
113.70
SEK149,970 		1,319 113.70 SEK149,970
2026-06-08 2026-06-05 B Purchase
2.2
Henrik Brinck Landelius

Other member of the company's administrative, management or supervisory body
2,576
116.42
SEK299,908 		2,576 116.42 SEK299,908
2026-06-08 2026-06-05 B Purchase
Maria Branestam

Other member of the company's administrative, management or supervisory body
1,288
116.42
SEK149,950 		1,288 116.42 SEK149,950
2026-06-08 2026-06-05 B Purchase
2.9
Tobias Bjurling

Chief Financial Officer (CFO)

Officer
858
116.42
SEK99,892 		858 116.42 SEK99,892
2026-06-08 2026-06-05 B Purchase
3.1
Susanne Persson

Other member of the company's administrative, management or supervisory body
2,576
116.42
SEK299,908 		2,576 116.42 SEK299,908
2026-05-26 2026-05-25 B Purchase
3.1
Carolina Detterfelt

Employee Representative of the Board of Directors or deputy Employee Representative of the Board of Directors

Director
3,009
116.30
SEK349,947 		3,009 116.30 SEK349,947
2026-05-08 2026-05-06 B Purchase
2.1
Mikael Anders Åslund

Chief Executive Officer (CEO)/Managing Directory

Officer
166
118.45
SEK19,663 		166 118.45 SEK19,663
2026-05-08 2026-05-06 B Purchase
3.1
Susanne Persson

Other member of the company's administrative, management or supervisory body
105
118.45
SEK12,438 		105 118.45 SEK12,438
2026-05-06 2026-05-06 B Purchase
2.9
Tobias Bjurling

Chief Financial Officer (CFO)

Officer
29
118.45
SEK3,435 		29 118.45 SEK3,435
2026-04-29 2026-04-27 B Purchase
3.1
Carolina Detterfelt

Employee Representative of the Board of Directors or deputy Employee Representative of the Board of Directors

Director
1,202
117.40
SEK141,115 		1,202 117.40 SEK141,115
2026-04-24 2026-04-23 B Purchase
3.1
Carolina Detterfelt

Employee Representative of the Board of Directors or deputy Employee Representative of the Board of Directors

Director
2,423
123.80
SEK299,967 		2,423 123.80 SEK299,967
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