Rosslyn Data Technologies PLC (RDT)

Track

Over the last 90 days, Rosslyn Data Technologies PLC has seen net insider buying totaling £120,896, with three insiders purchasing shares. Notably, Non-Executive Chairman James Appleby made significant purchases, including a £40,000 buy on April 14, 2026. The company's stock has experienced a 36.2% decline over the past 90 days.

Top insider buys (90, 60d)

Top cluster buys (90, 60d)

Top executive buys (90, 60d)

Featured in screeners

Top insider buys

Top cluster buys

Top executive buys

Stock chart

Ticker: RDT Exchange: LSE

Subscribe to get access to the transaction volume chart and in-chart transaction details

• Purchase • Sale • Planned purchase • Planned sale Net purchase Net sale Activity signal Earnings

Top insiders

Company data & Insiders

Subscribe to get access to the company description and key fundamental data (market cap, shares outstanding, dividend yield, % of shares held by insiders and more)

Download results Settings

Trades

Ed Riddell

Finance Director

1 purchase — total 10,000 GBP

Buy 14 Apr 2026

Value £2,441,990.12 | Price 460.88 | Shares 9,889

John Chessher

Non-Executive Director

1 purchase — total 20,000 GBP

Buy 14 Apr 2026

Value £1,418,274.20 | Price 216.39 | Shares 41,584

James Appleby

Non-Executive Chairman

1 purchase — total 40,000 GBP

Buy 14 Apr 2026

Value £40,000.00 | Price 0.02 | Shares 2,000,000

James Appleby

Non-Executive Chairman

1 purchase — total 20,000 GBP

Buy 31 Mar 2026

Value £20,000.00 | Price 0.02 | Shares 1,000,000

James Appleby

Chairman

1 purchase — total 264,000 GBP

Buy 29 Oct 2024

Value £264,000.00 | Price 0.05 | Shares 5,280,000

Bernard Quinn

Non-Executive Director

1 purchase — total 10,000 GBP

Buy 18 Sep 2023

Value £10,000.00 | Price 0.01 | Shares 2,000,000

James Appleby

Non-Executive Chairman

2 purchases — total 105,000 GBP

Buy 18 Sep 2023

Value £0.15 | Price 0.01 | Shares 29

Buy 18 Sep 2023

Value £105,000.00 | Price 0.01 | Shares 21,000,000

Hugh Cox

Chief Information Officer

1 purchase — total 6,479 GBP

Buy 23 Sep 2020

Value £6,479.00 | Price 0.06 | Shares 110,000

Hugh Cox

Founder, Chief Data Officer

1 purchase — total 5,138 GBP

Buy 10 Feb 2020

Value £5,138.00 | Price 0.06 | Shares 91,750

Charles Clark

Founder and Head of Partnerships

1 sale — total 8,625 GBP

Sale 28 Jan 2020

Value £8,625.00 | Price 0.06 | Shares 150,000

Hugh Cox

Founder, Chief Data Officer

1 purchase — total 4,000 GBP

Buy 14 Jan 2020

Value £4,000.00 | Price 0.05 | Shares 76,923

Hugh Cox

Founder, Chief Data Officer

1 sale — total 7,000 GBP

Sale 21 Nov 2019

Value £7,000.00 | Price 0.07 | Shares 100,000

Charles Clark

Founder President

1 sale — total 10,500 GBP

Sale 24 Jul 2019

Value £10,500.00 | Price 0.07 | Shares 150,000

Hugh Cox

Founder, Chief Data Officer

1 purchase — total 8,388 GBP

Buy 30 May 2019

Value £8,388.43 | Price 0.07 | Shares 114,910

Charles Clark

Founder President

1 sale — total 14,500 GBP

Sale 29 Nov 2018

Value £14,500.00 | Price 0.07 | Shares 200,000

Hugh Cox

Founder, Chief Data Officer

1 purchase — total 12,375 GBP

Buy 5 Oct 2018

Value £12,375.00 | Price 0.08 | Shares 150,000

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
2026-04-14	2026-04-14	B Purchase	Ed Riddell Finance Director Executive Director	9,889 460.88 £2,441,990	9,889	460.88	£2,441,990
2026-04-14	2026-04-14	B Purchase	John Chessher Non-Executive Director Executive Director	41,584 216.39 £1,418,274	41,584	216.39	£1,418,274
2026-04-14	2026-04-14	B Purchase	James Appleby Non-Executive Chairman Director	32,407 212.92 £3,402,066	32,407	212.92	£3,402,066
2026-04-01	2026-03-31	B Purchase	James Appleby Non-Executive Chairman Director	1,000,000 0.02 £20,000	1,000,000	0.02	£20,000
2024-10-30	2024-10-29	B Purchase	James Appleby Chairman Director	5,280,000 0.05 £264,000	5,280,000	0.05	£264,000
2023-09-19	2023-09-18	B Purchase	3.1 Bernard Quinn Non-Executive Director Executive Director	2,000,000 0.01 £10,000	2,000,000	0.01	£10,000
2023-09-19	2023-09-18	B Purchase	James Appleby Non-Executive Chairman Director	29 0.01 £0	29	0.01	£0
2023-09-19	2023-09-18	B Purchase	James Appleby Non-Executive Chairman Director	21,000,000 0.01 £105,000	21,000,000	0.01	£105,000
2020-09-24	2020-09-23	B Purchase	1.9 Hugh Cox Chief Information Officer Officer	110,000 0.06 £6,479	110,000	0.06	£6,479
2020-02-10	2020-02-10	B Purchase	1.9 Hugh Cox Founder, Chief Data Officer Officer	91,750 0.06 £5,138	91,750	0.06	£5,138
2020-02-04	2020-01-28	S Sale	Charles Clark Founder and Head of Partnerships Officer	150,000 0.06 £8,625	150,000	0.06	£8,625
2020-01-15	2020-01-14	B Purchase	1.9 Hugh Cox Founder, Chief Data Officer Officer	76,923 0.05 £4,000	76,923	0.05	£4,000
2019-11-25	2019-11-21	S Sale	1.9 Hugh Cox Founder, Chief Data Officer Officer	100,000 0.07 £7,000	100,000	0.07	£7,000
2019-07-25	2019-07-24	S Sale	Charles Clark Founder President	150,000 0.07 £10,500	150,000	0.07	£10,500
2019-05-30	2019-05-30	B Purchase	1.9 Hugh Cox Founder, Chief Data Officer Officer	114,910 0.07 £8,388	114,910	0.07	£8,388
2018-11-30	2018-11-29	S Sale	Charles Clark Founder President	200,000 0.07 £14,500	200,000	0.07	£14,500
2018-10-05	2018-10-05	B Purchase	1.9 Hugh Cox Founder, Chief Data Officer Officer	150,000 0.08 £12,375	150,000	0.08	£12,375