Niox Group PLC (NIOX)

Track

Over the past 90 days, Niox Group PLC has seen balanced insider activity with 4 transactions resulting in a negligible net value of approximately 33 GBP. Executives, including the CFO and CEO, have engaged in offsetting buy and sell orders. The stock has experienced a 7.7% decline over the same period, following the March 2026 results financiers.

Active buying signal · Very strong

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Active buying signal · Very strong

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Ticker: NIOX Exchange: LSE

• Purchase • Sale • Planned purchase • Planned sale Net purchase Net sale Buy signal Sell signal Earnings

Insider activity signal detected

12 activity signals detected for Niox Group PLC

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Insider trades have triggered activity signals for Niox Group PLC. Upgrade to see score, net flow, insiders and the full signal context.

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Company data & Insiders

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Trades

Buy 29 May 2026

Value £2,574,615.55 | Price 311.08 | Shares 81,308

Through Sarah Duncan, a closely affiliated person

Sale 29 May 2026

Value £758,073.56 | Price 159.67 | Shares 93,470

Buy 28 May 2026

Value £19,971.32 | Price 0.59 | Shares 34,139

Sale 28 May 2026

Value £19,983.90 | Price 0.58 | Shares 34,219

Buy 20 Apr 2026

Value £19,991.17 | Price 0.58 | Shares 34,539

Through Jonathan Emms, a closely affiliated person

Buy 20 Apr 2026

Value £19,999.82 | Price 0.58 | Shares 34,542

Sale 20 Apr 2026

Value £40,000.75 | Price 0.58 | Shares 69,494

Sale 16 Apr 2026

Value £92,841.17 | Price 0.56 | Shares 164,612

Sale 16 Apr 2026

Value £183,453.97 | Price 0.56 | Shares 325,273

Buy 31 Mar 2026

Value £108.15 | Price 0.00 | Shares 135,188

Buy 3 Dec 2025

Value £3,900.74 | Price 0.71 | Shares 5,522

Buy 18 Dec 2024

Value £19,986.37 | Price 0.63 | Shares 31,604

Through Jonathan Emms, a closely affiliated person

Buy 18 Dec 2024

Value £19,986.37 | Price 0.63 | Shares 31,604

Sale 18 Dec 2024

Value £38,768.60 | Price 0.62 | Shares 62,885

Buy 24 Oct 2024

Value £5,257.73 | Price 0.65 | Shares 8,064

Through Christopher Mills, a closely affiliated person

Buy 25 Jun 2024

Value £40,830.00 | Price 0.68 | Shares 60,000

Sale 25 Jun 2024

Value £40,800.00 | Price 0.68 | Shares 60,000

Buy 28 Mar 2024

Value £278.22 | Price 0.00 | Shares 347,781

Buy 28 Mar 2024

Value £358.21 | Price 0.00 | Shares 447,768

Buy 28 Mar 2024

Value £343.21 | Price 0.00 | Shares 429,008

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
2026-05-29	2026-05-29	B Purchase	James Duncan Chief Financial Officer Through Sarah Duncan, a closely affiliated person Officer	81,308 311.08 £2,574,616	81,308	311.08	£2,574,616
2026-05-29	2026-05-29	S Sale	2.0 Sarah Duncan Chief Financial Officer Officer	93,470 159.67 £758,074	93,470	159.67	£758,074
2026-05-29	2026-05-28	B Purchase	2.0 Sarah Duncan Chief Financial Officer Officer	77,628 430.12 £2,393,547	77,628	430.12	£2,393,547
2026-05-29	2026-05-28	S Sale	2.0 Sarah Duncan Chief Financial Officer Officer	34,219 0.58 £19,984	34,219	0.58	£19,984
2026-04-21	2026-04-20	B Purchase	Sharon Emms Chief Executive Officer Through Jonathan Emms, a closely affiliated person Officer	34,539 0.58 £19,991	34,539	0.58	£19,991
2026-04-21	2026-04-20	B Purchase	Jonathan Emms Chief Executive Officer Officer	34,542 0.58 £20,000	34,542	0.58	£20,000
2026-04-21	2026-04-20	S Sale	Jonathan Emms Chief Executive Officer Officer	69,494 0.58 £40,001	69,494	0.58	£40,001
2026-04-17	2026-04-16	S Sale	2.0 Sarah Duncan Chief Financial Officer Officer	164,612 0.56 £92,841	164,612	0.56	£92,841
2026-04-17	2026-04-16	S Sale	Jonathan Emms Chief Executive Officer Officer	325,273 0.56 £183,454	325,273	0.56	£183,454
2026-04-01	2026-03-31	B Purchase	Jonathan Emms Chief Executive Officer Officer	135,188 0.00 £108	135,188	0.00	£108
2025-12-04	2025-12-03	B Purchase	2.0 Sarah Duncan Chief Financial Officer Officer	5,522 0.71 £3,901	5,522	0.71	£3,901
2024-12-18	2024-12-18	B Purchase	Sharon Emms Chief Operating Officer Through Jonathan Emms, a closely affiliated person Officer	31,604 0.63 £19,986	31,604	0.63	£19,986
2024-12-18	2024-12-18	B Purchase	Jonathan Emms Chief Operating Officer Officer	31,604 0.63 £19,986	31,604	0.63	£19,986
2024-12-18	2024-12-18	S Sale	Jonathan Emms Chief Operating Officer Officer	62,885 0.62 £38,769	62,885	0.62	£38,769
2024-10-28	2024-10-24	B Purchase	3.8 Nicholas Mills Non-Executive Director Through Christopher Mills, a closely affiliated person Executive Director	8,064 0.65 £5,258	8,064	0.65	£5,258
2024-06-25	2024-06-25	B Purchase	Michael Roller Chief Financial Officer Officer	60,000 0.68 £40,830	60,000	0.68	£40,830
2024-06-25	2024-06-25	S Sale	Michael Roller Chief Financial Officer Officer	60,000 0.68 £40,800	60,000	0.68	£40,800
2024-03-28	2024-03-28	B Purchase	Michael Roller Chief Financial Officer Officer	347,781 0.00 £278	347,781	0.00	£278
2024-03-28	2024-03-28	B Purchase	Jonathan Emms Chief Operating Officer Officer	447,768 0.00 £358	447,768	0.00	£358
2024-03-28	2024-03-28	B Purchase	3.7 Ian Johnson Executive Chairman Director	429,008 0.00 £343	429,008	0.00	£343

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Niox Group PLC (NIOX)

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