United Kingdom Machinery, Equipment & Components

Diploma PLC (DPLM)

Track

Track

Diploma PLC experienced four recent insider trading transactions, all representing purchases totaling 154,550 GBP. Three distinct insiders, including the Chief Financial Officer, acquired shares following the May 2026 results financiers. These acquisitions occurred while the stock price maintained a positive 90-day trend, trading near its 52-week high.
Ticker: DPLM Exchange: LSE
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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 Diploma PLC. 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
3.0
Mandy Gradden Non-Executive Director Executive Director
Transaction date
Purchase
Price
113.69
Quantity 44,186
Value £1,566,188
1.8
Wilson Ng Chief Financial Officer Officer
Transaction date
Purchase
Price
164.74
Quantity 80,228
Value £909,892
3.0
Katie Bickerstaffe Senior Independent Director Non-Executive Director
Transaction date
Purchase
Price
420.83
Quantity 84,790
Value £3,267,681
3.0
Katie Bickerstaffe Senior Independent Director Non-Executive Director
Transaction date
Purchase
Price
70.48
Quantity 133
Value £9,373
3.0
Katie Bickerstaffe Senior Independent Director Non-Executive Director
Transaction date
Purchase
Price
67.30
Quantity 177
Value £11,912
3.7
Ian El-Mokadem Non-Executive Director Executive Director
Transaction date
Purchase
Price
58.20
Quantity 500
Value £29,100
3.4
Geraldine Huse Non-Executive Director Executive Director
Transaction date
Purchase
Price
58.34
Quantity 535
Value £31,212
3.0
Katie Bickerstaffe Senior Independent Director Non-Executive Director
Transaction date
Purchase
Price
59.25
Quantity 251
Value £14,872
3.3
Johnny Thomson Chief Executive Officer Officer
Transaction date
Sale
Price
56.68
Quantity 30,000
Value £1,700,400
3.0
Katie Bickerstaffe Non-Executive Director Executive Director
Transaction date
Purchase
Price
56.45
Quantity 352
Value £19,870
3.7
Ian El-Mokadem Non-Executive Director Executive Director
Transaction date
Purchase
Price
56.15
Quantity 500
Value £28,075
1.8
Wilson Ng Chief Financial Officer Officer
Transaction date
Purchase
Price
53.69
Quantity 410
Value £22,013
1.8
Wilson Ng Acting Chief Financial Officer Officer
Transaction date
Sale
Price
52.59
Quantity 4,446
Value £233,815
3.3
Johnny Thomson Chief Executive Officer Officer
Transaction date
Sale
Price
52.59
Quantity 37,407
Value £1,967,234
3.4
Geraldine Huse Non-Executive Director Executive Director
Transaction date
Purchase
Price
39.97
Quantity 750
Value £29,978
3.5
Chris Davies Chief Financial Officer Officer
Transaction date
Purchase
Price
42.80
Quantity 3,917
Value £167,648
3.0
Katie Bickerstaffe Non-Executive Director Executive Director
Transaction date
Purchase
Price
43.38
Quantity 228
Value £9,891
3.0
Katie Bickerstaffe Non-Executive Director Executive Director
Transaction date
Purchase
Price
43.74
Quantity 477
Value £20,864
3.5
Chris Davies Chief Financial Officer Officer
Transaction date
Sale
Price
45.36
Quantity 3,617
Value £164,067
3.3
Johnny Thomson Chief Executive Officer Officer
Transaction date
Sale
Price
45.36
Quantity 26,794
Value £1,215,376
Notification date Transaction date B/S Transaction type Insider and/or position Nb. shares
Price
Value 		Number of shares Price Value Details
2026-07-20 2026-07-17 B Purchase
3.0
Mandy Gradden

Non-Executive Director

Executive Director
44,186
113.69
£1,566,188 		44,186 113.69 £1,566,188
2026-07-20 2026-07-16 B Purchase
1.8
Wilson Ng

Chief Financial Officer

Officer
80,228
164.74
£909,892 		80,228 164.74 £909,892
2026-07-20 2026-07-16 B Purchase
3.0
Katie Bickerstaffe

Senior Independent Director

Non-Executive Director
84,790
420.83
£3,267,681 		84,790 420.83 £3,267,681
2026-07-20 2026-07-16 B Purchase
3.0
Katie Bickerstaffe

Senior Independent Director

Non-Executive Director
133
70.48
£9,373 		133 70.48 £9,373
2026-05-21 2026-05-20 B Purchase
3.0
Katie Bickerstaffe

Senior Independent Director

Non-Executive Director
177
67.30
£11,912 		177 67.30 £11,912
2026-03-23 2026-03-20 B Purchase
3.7
Ian El-Mokadem

Non-Executive Director

Executive Director
500
58.20
£29,100 		500 58.20 £29,100
2026-03-23 2026-03-19 B Purchase
3.4
Geraldine Huse

Non-Executive Director

Executive Director
535
58.34
£31,212 		535 58.34 £31,212
2026-03-23 2026-03-19 B Purchase
3.0
Katie Bickerstaffe

Senior Independent Director

Non-Executive Director
251
59.25
£14,872 		251 59.25 £14,872
2026-01-16 2026-01-16 S Sale
3.3
Johnny Thomson

Chief Executive Officer

Officer
30,000
56.68
£1,700,400 		30,000 56.68 £1,700,400
2026-01-15 2026-01-14 B Purchase
3.0
Katie Bickerstaffe

Non-Executive Director

Executive Director
352
56.45
£19,870 		352 56.45 £19,870
2026-01-15 2026-01-14 B Purchase
3.7
Ian El-Mokadem

Non-Executive Director

Executive Director
500
56.15
£28,075 		500 56.15 £28,075
2025-12-22 2025-12-19 B Purchase
1.8
Wilson Ng

Chief Financial Officer

Officer
410
53.69
£22,013 		410 53.69 £22,013
2025-11-19 2025-11-18 S Sale
1.8
Wilson Ng

Acting Chief Financial Officer

Officer
4,446
52.59
£233,815 		4,446 52.59 £233,815
2025-11-19 2025-11-18 S Sale
3.3
Johnny Thomson

Chief Executive Officer

Officer
37,407
52.59
£1,967,234 		37,407 52.59 £1,967,234
2025-11-19 2025-03-19 B Purchase
3.4
Geraldine Huse

Non-Executive Director

Executive Director
750
39.97
£29,978 		750 39.97 £29,978
2024-12-23 2024-12-20 B Purchase
3.5
Chris Davies

Chief Financial Officer

Officer
3,917
42.80
£167,648 		3,917 42.80 £167,648
2024-11-20 2024-11-19 B Purchase
3.0
Katie Bickerstaffe

Non-Executive Director

Executive Director
228
43.38
£9,891 		228 43.38 £9,891
2024-11-20 2024-11-19 B Purchase
3.0
Katie Bickerstaffe

Non-Executive Director

Executive Director
477
43.74
£20,864 		477 43.74 £20,864
2024-11-20 2024-11-19 S Sale
3.5
Chris Davies

Chief Financial Officer

Officer
3,617
45.36
£164,067 		3,617 45.36 £164,067
2024-11-20 2024-11-19 S Sale
3.3
Johnny Thomson

Chief Executive Officer

Officer
26,794
45.36
£1,215,376 		26,794 45.36 £1,215,376
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