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United Kingdom Machinery, Equipment & Components

Haydale Graphene Industries PLC (HAYD)

Track

Over the last 90 days, Haydale Graphene Industries PLC has seen a net buy of £3,961.97 from one executive. This single transaction represents a net buy as a percentage of float of 0.0004%. The stock has experienced an 8.8% price increase over the past 90 days.
Stock chart
Ticker: HAYD Exchange: LSE
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• Purchase • Sale • Planned purchase • Planned sale Net purchase Net sale Activity signal Earnings
Top insiders
Trades
Mark Sait
Chief Commercial Officer
1 purchase — total 3,000 GBP
Buy 7 Apr 2026
Value £323,240.71 | Price 10.11 | Shares 54,443
Buy 8 Jan 2026
Value £3,289,808.02 | Price 420.86 | Shares 7,129
Buy 7 Jan 2026
Value £10,000.00 | Price 0.01 | Shares 2,000,000
Buy 7 Jan 2026
Value £10,000.00 | Price 0.01 | Shares 2,000,000
Buy 7 Jan 2026
Value £196,000.00 | Price 0.01 | Shares 39,200,000
Buy 5 Oct 2023
Value £5,000.00 | Price 0.01 | Shares 1,000,000
Buy 5 Oct 2023
Value £5,000.00 | Price 0.01 | Shares 1,000,000
Buy 5 Oct 2023
Value £15,000.00 | Price 0.01 | Shares 3,000,000
Buy 5 Oct 2023
Value £15,000.00 | Price 0.01 | Shares 3,000,000
Buy 15 Sep 2022
Value £14,196.79 | Price 0.02 | Shares 735,585
Buy 14 Sep 2022
Value £20,288.30 | Price 0.02 | Shares 1,014,415
Sale 1 Mar 2022
Value £126.00 | Price 0.00 | Shares 285,714
Sale 1 Mar 2022
Value £125.71 | Price 0.00 | Shares 285,714
Buy 12 Mar 2020
Value £14,413.00 | Price 0.01 | Shares 1,000,000
Buy 11 Mar 2020
Value £4,812.50 | Price 0.02 | Shares 275,000
Buy 9 Mar 2020
Value £11,207.00 | Price 0.02 | Shares 700,000
Sale 19 Aug 2019
Value £7,236.25 | Price 0.02 | Shares 413,500
Buy 12 Apr 2019
Value £10,000.00 | Price 0.02 | Shares 500,000
Through Richard Banks, a closely affiliated person
Sale 12 Apr 2019
Value £9,837.50 | Price 0.02 | Shares 500,000
Through Richard Banks, a closely affiliated person
Buy 13 Mar 2019
Value £16,828.64 | Price 0.02 | Shares 841,432
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 Details
2026-04-08 2026-04-07 B Purchase
3.2
Mark Sait

Chief Commercial Officer

Officer
54,443
10.11
£323,241 		54,443 10.11 £323,241
2026-01-09 2026-01-08 B Purchase
3.2
Mark Sait

Chief Commercial Officer

Officer
7,129
420.86
£3,289,808 		7,129 420.86 £3,289,808
2026-01-09 2026-01-07 B Purchase
3.2
Mark Sait

Chief Commercial Officer

Officer
32,894
369.28
£262,405 		32,894 369.28 £262,405
2026-01-09 2026-01-07 B Purchase
0.5
Theresa Wallis

Non-executive Director

Executive Director
2,000,000
0.01
£10,000 		2,000,000 0.01 £10,000
2026-01-09 2026-01-07 B Purchase
3.1
Simon Turek

Chief Executive Officer

Officer
39,200,000
0.01
£196,000 		39,200,000 0.01 £196,000
2023-10-05 2023-10-05 B Purchase
0.5
Theresa Wallis

Non-Executive Director

Executive Director
1,000,000
0.01
£5,000 		1,000,000 0.01 £5,000
2023-10-05 2023-10-05 B Purchase
Patrick Carter

Chief Financial Officer

Officer
1,000,000
0.01
£5,000 		1,000,000 0.01 £5,000
2023-10-05 2023-10-05 B Purchase
1.0
Keith Broadbent

Chief Executive Officer

Officer
3,000,000
0.01
£15,000 		3,000,000 0.01 £15,000
2023-10-05 2023-10-05 B Purchase
2.7
David Banks

Non-Executive Chair

Director
3,000,000
0.01
£15,000 		3,000,000 0.01 £15,000
2022-09-16 2022-09-15 B Purchase
2.7
David Banks

Non-Executive Chairman

Director
735,585
0.02
£14,197 		735,585 0.02 £14,197
2022-09-15 2022-09-14 B Purchase
2.7
David Banks

Non-Executive Chair

Director
1,014,415
0.02
£20,288 		1,014,415 0.02 £20,288
2022-03-01 2022-03-01 S Sale
Jonathan Mark Chapman

Chief Financial Officer

Officer
285,714
0.00
£126 		285,714 0.00 £126
2022-03-01 2022-03-01 S Sale
Jonathan Mark Chapman

Chief Financial Officer

Officer
285,714
0.00
£126 		285,714 0.00 £126
2020-03-13 2020-03-12 B Purchase
2.7
David Banks

Chairman

Director
1,000,000
0.01
£14,413 		1,000,000 0.01 £14,413
2020-03-12 2020-03-11 B Purchase
2.4
Mark Chapman

CFO

Officer
275,000
0.02
£4,812 		275,000 0.02 £4,812
2020-03-09 2020-03-09 B Purchase
2.7
David Banks

Chairman

Director
700,000
0.02
£11,207 		700,000 0.02 £11,207
2019-08-21 2019-08-19 S Sale
2.3
Raymond John Gibbs

Director of Haydale Technologies Taiwan Co., Ltd, Haydale Technologies Korea Co., Ltd and Haydale Technologies Thailand Co., Ltd

Executive Director
413,500
0.02
£7,236 		413,500 0.02 £7,236
2019-04-16 2019-04-12 B Purchase
1.5
David Doidge

Non-executive Chairman

Through Richard Banks, a closely affiliated person Director
500,000
0.02
£10,000 		500,000 0.02 £10,000
2019-04-16 2019-04-12 S Sale
1.5
David Doidge

Non-executive Chairman

Through Richard Banks, a closely affiliated person Director
500,000
0.02
£9,838 		500,000 0.02 £9,838
2019-03-14 2019-03-13 B Purchase
1.0
Roger Humm

Non-executive Director

Executive Director
841,432
0.02
£16,829 		841,432 0.02 £16,829
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