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United Kingdom Pharmaceuticals

Niox Group PLC (NIOX)

Track

Over the last 90 days, Niox Group PLC saw a net insider selling of £374,938, primarily driven by sales from executives. Notable transactions include significant sell-offs by the CEO and CFO. The stock has experienced a 4.0% decline in the past 90 days, trading near its 52-week low.
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Ticker: NIOX Exchange: LSE
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• Purchase • Sale • Planned purchase • Planned sale Net purchase Net sale Activity signal Earnings
Top insiders
Trades
James Duncan
Chief Financial Officer
1 purchase — total 19,998 GBP
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 Details
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
3.1
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
3.6
Ian Johnson

Executive Chairman

Director
429,008
0.00
£343 		429,008 0.00 £343
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