Sweden Machinery, Equipment & Components

Gullberg & Jansson AB (publ) (GJAB)

Track

Gullberg & Jansson AB (publ) has seen consistent insider buying activity, most recently by CFO Fredrik Boo in February 2026. These transactions involved multiple purchases of company shares. Prior to this, the company recorded various buy orders from both the CFO and the Chairman of the Board throughout 2025.
No insider activity signals detected

Insider trades have not triggered unusual activity signals for this company.

Top insiders
Trades
Abbreviations B: Buy, S: Sell, PP: Planned purchase, PlS: Planned sale, PrS: Proposed sale, O: Option / Other
Fredrik Boo Chief Financial Officer (CFO) Officer
Transaction date
Purchase
Price
149.69
Quantity 58,484
Value SEK2,617,780
Fredrik Boo Chief Financial Officer (CFO) Officer
Transaction date
Purchase
Price
411.80
Quantity 37,386
Value SEK1,627,292
Fredrik Boo Chief Financial Officer (CFO) Officer
Transaction date
Purchase
Price
374.02
Quantity 47,518
Value SEK4,990,264
Fredrik Boo Chief Financial Officer (CFO) Officer
Transaction date
Purchase
Price
13.90
Quantity 1,853
Value SEK25,757
Fredrik Boo Chief Financial Officer (CFO) Officer
Transaction date
Purchase
Price
12.91
Quantity 8,139
Value SEK105,074
Gaetan Leopold Antoine Boyer Chairman of the Board of Directors Director
Transaction date
Purchase
Price
12.00
Quantity 32,448
Value SEK389,376
Gaetan Leopold Antoine Boyer Chairman of the Board of Directors Director
Transaction date
Purchase
Price
12.50
Quantity 761
Value SEK9,511
Gaetan Boyer Chairman of the Board of Directors Director
Through Hamberg Förvaltning Aktiebolag, a closely affiliated person
Transaction date
Purchase
Price
12.00
Quantity 36,522
Value SEK438,264
Gaetan Boyer Chairman of the Board of Directors Director
Through Hamberg Förvaltning Aktiebolag, a closely affiliated person
Transaction date
Purchase
Price
12.45
Quantity 478
Value SEK5,951
Fredrik Boo Chief Financial Officer (CFO) Officer
Transaction date
Purchase
Price
14.11
Quantity 10,928
Value SEK154,194
Fredrik Boo Chief Financial Officer (CFO) Officer
Transaction date
Purchase
Price
14.27
Quantity 15,072
Value SEK215,077
Fredrik Boo Chief Financial Officer (CFO) Officer
Transaction date
Purchase
Price
14.63
Quantity 3,722
Value SEK54,463
Fredrik Boo Chief Financial Officer (CFO) Officer
Transaction date
Purchase
Price
14.70
Quantity 7,608
Value SEK111,837
Fredrik Boo Chief Financial Officer (CFO) Officer
Transaction date
Purchase
Price
14.81
Quantity 14,863
Value SEK220,164
Gaetan Leopold Antoine Boyer Chairman of the Board of Directors Director
Transaction date
Sale
Price
14.42
Quantity 36,709
Value SEK529,444
Gaetan Leopold Antoine Boyer Chairman of the Board of Directors Director
Transaction date
Purchase
Price
30.06
Quantity 50,000
Value SEK1,503,000
3.4
Hamberg Förvaltning Aktiebolag Deputy CEO/Deputy Managing Director Officer
Through a closely affiliated person
Transaction date
Purchase
Price
31.56
Quantity 50,000
Value SEK1,578,150
Pernilla Boyer Chairman of the Board of Directors Director
Through a closely affiliated person
Transaction date
Purchase
Price
30.06
Quantity 50,000
Value SEK1,503,000
Pernilla Boyer Chairman of the Board of Directors Director
Through a closely affiliated person
Transaction date
Purchase
Price
30.06
Quantity 150,000
Value SEK4,509,000
3.5
YLWA KARLGREN Member of the Board of Directors Director
Transaction date
Purchase
Price
61.65
Quantity 1,500
Value SEK92,475
Notification date Transaction date B/S Transaction type Insider and/or position Nb. shares
Price
Value 		Number of shares Price Value Details
2026-02-18 2026-02-18 B Purchase
Fredrik Boo

Chief Financial Officer (CFO)

Officer
58,484
149.69
SEK2,617,780 		58,484 149.69 SEK2,617,780
2026-02-18 2026-02-17 B Purchase
Fredrik Boo

Chief Financial Officer (CFO)

Officer
37,386
411.80
SEK1,627,292 		37,386 411.80 SEK1,627,292
2026-02-18 2026-02-16 B Purchase
Fredrik Boo

Chief Financial Officer (CFO)

Officer
47,518
374.02
SEK4,990,264 		47,518 374.02 SEK4,990,264
2025-11-12 2025-11-11 B Purchase
Fredrik Boo

Chief Financial Officer (CFO)

Officer
1,853
13.90
SEK25,757 		1,853 13.90 SEK25,757
2025-11-12 2025-11-10 B Purchase
Fredrik Boo

Chief Financial Officer (CFO)

Officer
8,139
12.91
SEK105,074 		8,139 12.91 SEK105,074
2025-09-10 2025-09-10 B Purchase
Gaetan Leopold Antoine Boyer

Chairman of the Board of Directors

Director
32,448
12.00
SEK389,376 		32,448 12.00 SEK389,376
2025-09-10 2025-09-10 B Purchase
Gaetan Leopold Antoine Boyer

Chairman of the Board of Directors

Director
761
12.50
SEK9,511 		761 12.50 SEK9,511
2025-09-10 2025-09-10 B Purchase
Gaetan Boyer

Chairman of the Board of Directors

Through Hamberg Förvaltning Aktiebolag, a closely affiliated person Director
36,522
12.00
SEK438,264 		36,522 12.00 SEK438,264
2025-09-10 2025-09-10 B Purchase
Gaetan Boyer

Chairman of the Board of Directors

Through Hamberg Förvaltning Aktiebolag, a closely affiliated person Director
478
12.45
SEK5,951 		478 12.45 SEK5,951
2025-05-19 2025-05-19 B Purchase
Fredrik Boo

Chief Financial Officer (CFO)

Officer
10,928
14.11
SEK154,194 		10,928 14.11 SEK154,194
2025-05-19 2025-05-16 B Purchase
Fredrik Boo

Chief Financial Officer (CFO)

Officer
15,072
14.27
SEK215,077 		15,072 14.27 SEK215,077
2025-03-04 2025-03-04 B Purchase
Fredrik Boo

Chief Financial Officer (CFO)

Officer
3,722
14.63
SEK54,463 		3,722 14.63 SEK54,463
2025-03-04 2025-03-03 B Purchase
Fredrik Boo

Chief Financial Officer (CFO)

Officer
7,608
14.70
SEK111,837 		7,608 14.70 SEK111,837
2025-03-04 2025-02-28 B Purchase
Fredrik Boo

Chief Financial Officer (CFO)

Officer
14,863
14.81
SEK220,164 		14,863 14.81 SEK220,164
2024-04-17 2024-04-15 S Sale
Gaetan Leopold Antoine Boyer

Chairman of the Board of Directors

Director
36,709
14.42
SEK529,444 		36,709 14.42 SEK529,444
2023-03-31 2023-03-29 B Purchase
Gaetan Leopold Antoine Boyer

Chairman of the Board of Directors

Director
50,000
30.06
SEK1,503,000 		50,000 30.06 SEK1,503,000
2023-03-31 2023-03-29 B Purchase
3.4
Hamberg Förvaltning Aktiebolag

Deputy CEO/Deputy Managing Director

Through a closely affiliated person Officer
50,000
31.56
SEK1,578,150 		50,000 31.56 SEK1,578,150
2023-03-31 2023-03-29 B Purchase
Pernilla Boyer

Chairman of the Board of Directors

Through a closely affiliated person Director
50,000
30.06
SEK1,503,000 		50,000 30.06 SEK1,503,000
2023-03-31 2023-03-29 B Purchase
Pernilla Boyer

Chairman of the Board of Directors

Through a closely affiliated person Director
150,000
30.06
SEK4,509,000 		150,000 30.06 SEK4,509,000
2022-05-23 2022-05-23 B Purchase
3.5
YLWA KARLGREN

Member of the Board of Directors

Director
1,500
61.65
SEK92,475 		1,500 61.65 SEK92,475
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