Director/PDMR Shareholding

RNS Number : 7605D

Kistos Holdings PLC

11 May 2026

Kistos Holdings plc

("Kistos" or the "Company")

PDMR Dealing - Share Incentive Plan Purchases and Vesting of Options

The Company announces that certain persons discharging managerial responsibility ("PDMRs") have acquired and disposed of ordinary shares of £0.10 each in the capital of the Company ("Ordinary Shares") in connection with: (i) purchases of Ordinary Shares pursuant to the Kistos Holdings plc Share Incentive Plan ("SIP"); and (ii) the vesting of options granted under the Kistos Holdings Plc Employee Incentive Plan (the "Plan").

Share Incentive Plan Purchases

The SIP provides for regular purchases of Ordinary Shares using salary deductions, with shares acquired on‑market by the SIP trustee in accordance with the rules of the SIP.

Director	Position	Aggregate number of Ordinary Shares acquired under the SIP
Andrew Austin	Director	1,974
Peter Mann	Director	2,831
James Thomson	Director	1,579
Richard Benmore	Director	2,831

The Company confirms that no sales of Ordinary Shares have been made by the above Directors under the SIP.

Vesting of Options under the Plan

The Company also announces the vesting of options awarded under the Plan. Following vesting, Ordinary Shares were issued to the relevant PDMRs. In order to satisfy income tax and national insurance contribution liabilities arising on vesting, a number of Ordinary Shares were sold on‑market (including associated dealing costs), with the balance retained.

PDMR	Options vested	Ordinary Shares received	Ordinary Shares sold	Ordinary Shares retained
Andrew Austin	225,641	132,696	0	132,696
Peter Mann	197,436	116,109	60,419	55,690
James Thomson	42,872	29,980	15,601	14,379

A total of 76,020 Ordinary Shares were sold at a price of 286.49 pence per share.

Aggregate Shareholdings

Following the above transactions, the Directors' aggregate beneficial interests in Ordinary Shares of the Company are as follows:

Director	Total beneficial interest (Ordinary Shares)	Voting rights (Ordinary Shares)
Andrew Austin	7,307,768	14,455,349
Peter Mann	1,349,423	1,349,423
James Thomson	83,752	83,752
Richard Benmore	1,135,089	1,135,089

This announcement is made in accordance with Article 19 of the UK Market Abuse Regulation.

ENDS

Enquiries

Kistos Holdings plc Andrew Austin / Peter Mann	via Hawthorn Advisors
Panmure Liberum (NOMAD, Joint Broker) Amrit Mahbubani / Freddie Wooding / Mark Murphy / Sam Elder	Tel: 0207 886 2500
Berenberg (Joint Broker) Matthew Armitt / Ciaran Walsh	Tel: 0203 207 7800
Hawthorn Advisors (Public Relations Advisor) Henry Lerwill / Simon Woods	Tel: 0203 745 4960
Camarco (Public Relations Advisor) Billy Clegg

PDMR Notification and Dealing Disclosure (Article 19 MAR)

1.	Details of the person discharging managerial responsibilities
a)	Name	Andrew Austin
2.	Reason for the notification
a)	Position / status	Executive Chairman and Director (PDMR)
b)	Initial notification / amendment	Initial notification
3.	Details of the issuer
a)	Name	Kistos Holdings plc
b)	LEI	213800L2ET5KEP3OMV07
4.	Details of the transaction(s)
(a)	Description of the financial instrument	Ordinary shares of £0.10
	ISIN	GB00BP7NQJ77
	Nature of the transaction	On-market purchase under the Company's Share Incentive Plan
	Price(s) and volume(s)	394 Ordinary Shares at £1.14
	Date of the transaction	20/01/2025
	Place of the transaction	London Stock Exchange
(b)	Description of the financial instrument	Ordinary shares of £0.10
	ISIN	GB00BP7NQJ77
	Nature of the transaction	On-market purchase under the Company's Share Incentive Plan
	Price(s) and volume(s)	429 Ordinary Shares at £1.05
	Date of the transaction	22/04/2025
	Place of the transaction	London Stock Exchange
(c)	Description of the financial instrument	Ordinary shares of £0.10
	ISIN	GB00BP7NQJ77
	Nature of the transaction	On-market purchase under the Company's Share Incentive Plan
	Price(s) and volume(s)	314 Ordinary Shares at £1.43
	Date of the transaction	21/07/2025
	Place of the transaction	London Stock Exchange
(d)	Description of the financial instrument	Ordinary shares of £0.10
	ISIN	GB00BP7NQJ77
	Nature of the transaction	On-market purchase under the Company's Share Incentive Plan
	Price(s) and volume(s)	298 Ordinary Shares at £1.51
	Date of the transaction	20/10/2025
	Place of the transaction	London Stock Exchange
(e)	Description of the financial instrument	Ordinary shares of £0.10
	ISIN	GB00BP7NQJ77
	Nature of the transaction	On-market purchase under the Company's Share Incentive Plan
	Price(s) and volume(s)	289 Ordinary Shares at £1.56
	Date of the transaction	20/01/2026
	Place of the transaction	London Stock Exchange
(f)	Description of the financial instrument	Ordinary shares of £0.10
	ISIN	GB00BP7NQJ77
	Nature of the transaction	On-market purchase under the Company's Share Incentive Plan
	Price(s) and volume(s)	250 Ordinary Shares at £1.80
	Date of the transaction	20/04/2026
	Place of the transaction	London Stock Exchange
(g)	Description of the financial instrument	Ordinary shares of £0.10
	ISIN	GB00BP7NQJ77
	Nature of the transaction	Exercise of options under the Plan; receipt of Ordinary Shares
	Price(s) and volume(s)	132,696 Ordinary Shares at Nil
	Date of the transaction	08/05/2026
	Place of the transaction	London Stock Exchange

1.	Details of the person discharging managerial responsibilities
a)	Name	Peter Mann
2.	Reason for the notification
a)	Position / status	Chief Executive Officer and Director (PDMR)
b)	Initial notification / amendment	Initial notification
3.	Details of the issuer
a)	Name	Kistos Holdings plc
b)	LEI	213800L2ET5KEP3OMV07
4.	Details of the transaction(s)
(a)	Description of the financial instrument	Ordinary shares of £0.10
	ISIN	GB00BP7NQJ77
	Nature of the transaction	On-market purchase under the Company's Share Incentive Plan
	Price(s) and volume(s)	394 Ordinary Shares at £1.14
	Date of the transaction	20/01/2025
	Place of the transaction	London Stock Exchange
(b)	Description of the financial instrument	Ordinary shares of £0.10
	ISIN	GB00BP7NQJ77
	Nature of the transaction	On-market purchase under the Company's Share Incentive Plan
	Price(s) and volume(s)	1,286 Ordinary Shares at £1.05
	Date of the transaction	22/04/2025
	Place of the transaction	London Stock Exchange
(c)	Description of the financial instrument	Ordinary shares of £0.10
	ISIN	GB00BP7NQJ77
	Nature of the transaction	On-market purchase under the Company's Share Incentive Plan
	Price(s) and volume(s)	315 Ordinary Shares at £1.43
	Date of the transaction	21/07/2025
	Place of the transaction	London Stock Exchange
(d)	Description of the financial instrument	Ordinary shares of £0.10
	ISIN	GB00BP7NQJ77
	Nature of the transaction	On-market purchase under the Company's Share Incentive Plan
	Price(s) and volume(s)	298 Ordinary Shares at £1.51
	Date of the transaction	20/10/2025
	Place of the transaction	London Stock Exchange
(e)	Description of the financial instrument	Ordinary shares of £0.10
	ISIN	GB00BP7NQJ77
	Nature of the transaction	On-market purchase under the Company's Share Incentive Plan
	Price(s) and volume(s)	288 Ordinary Shares at £1.56
	Date of the transaction	20/01/2026
	Place of the transaction	London Stock Exchange
(f)	Description of the financial instrument	Ordinary shares of £0.10
	ISIN	GB00BP7NQJ77
	Nature of the transaction	On-market purchase under the Company's Share Incentive Plan
	Price(s) and volume(s)	250 Ordinary Shares at £1.80
	Date of the transaction	20/04/2026
	Place of the transaction	London Stock Exchange
(g)	Description of the financial instrument	Ordinary shares of £0.10
	ISIN	GB00BP7NQJ77
	Nature of the transaction	Exercise of options under the Plan; receipt of Ordinary Shares; sale of Ordinary Shares to settle tax liabilities
	Price(s) and volume(s)	Receipt: 116,109 Ordinary Shares at Nil; Sale: 60,419 Ordinary Shares at £2.8649
	Date of the transaction	08/05/2026
	Place of the transaction	London Stock Exchange

1.	Details of the person discharging managerial responsibilities
a)	Name	James Thomson
2.	Reason for the notification
a)	Position / status	Chief Financial Officer and Director (PDMR)
b)	Initial notification / amendment	Initial notification
3.	Details of the issuer
a)	Name	Kistos Holdings plc
b)	LEI	213800L2ET5KEP3OMV07
4.	Details of the transaction(s)
(a)	Description of the financial instrument	Ordinary shares of £0.10
	ISIN	GB00BP7NQJ77
	Nature of the transaction	On-market purchase under the Company's Share Incentive Plan
	Price(s) and volume(s)	428 Ordinary Shares at £1.05
	Date of the transaction	22/04/2025
	Place of the transaction	London Stock Exchange
(b)	Description of the financial instrument	Ordinary shares of £0.10
	ISIN	GB00BP7NQJ77
	Nature of the transaction	On-market purchase under the Company's Share Incentive Plan
	Price(s) and volume(s)	315 Ordinary Shares at £1.43
	Date of the transaction	21/07/2025
	Place of the transaction	London Stock Exchange
(c)	Description of the financial instrument	Ordinary shares of £0.10
	ISIN	GB00BP7NQJ77
	Nature of the transaction	On-market purchase under the Company's Share Incentive Plan
	Price(s) and volume(s)	298 Ordinary Shares at £1.51
	Date of the transaction	20/10/2025
	Place of the transaction	London Stock Exchange
(d)	Description of the financial instrument	Ordinary shares of £0.10
	ISIN	GB00BP7NQJ77
	Nature of the transaction	On-market purchase under the Company's Share Incentive Plan
	Price(s) and volume(s)	288 Ordinary Shares at £1.56
	Date of the transaction	20/01/2026
	Place of the transaction	London Stock Exchange
(e)	Description of the financial instrument	Ordinary shares of £0.10
	ISIN	GB00BP7NQJ77
	Nature of the transaction	On-market purchase under the Company's Share Incentive Plan
	Price(s) and volume(s)	250 Ordinary Shares at £1.80
	Date of the transaction	20/04/2026
	Place of the transaction	London Stock Exchange
(f)	Description of the financial instrument	Ordinary shares of £0.10
	ISIN	GB00BP7NQJ77
	Nature of the transaction	Exercise of options; receipt of shares; sale to cover tax
	Price(s) and volume(s)	Receipt: 29,980 Ordinary Shares at Nil; Sale: 15,601 Ordinary Shares at £2.8649
	Date of the transaction	08/05/2026
	Place of the transaction	London Stock Exchange

1.	Details of the person discharging managerial responsibilities
a)	Name	Richard Benmore
2.	Reason for the notification
a)	Position / status	Director (PDMR)
b)	Initial notification / amendment	Initial notification
3.	Details of the issuer
a)	Name	Kistos Holdings plc
b)	LEI	213800L2ET5KEP3OMV07
4.	Details of the transaction(s)
(a)	Description of the financial instrument	Ordinary shares of £0.10
	ISIN	GB00BP7NQJ77
	Nature of the transaction	On-market purchase under the Company's Share Incentive Plan
	Price(s) and volume(s)	394 Ordinary Shares at £1.14
	Date of the transaction	20/01/2025
	Place of the transaction	London Stock Exchange
(b)	Description of the financial instrument	Ordinary shares of £0.10
	ISIN	GB00BP7NQJ77
	Nature of the transaction	On-market purchase under the Company's Share Incentive Plan
	Price(s) and volume(s)	1,286 Ordinary Shares at £1.05
	Date of the transaction	22/04/2025
	Place of the transaction	London Stock Exchange
(c)	Description of the financial instrument	Ordinary shares of £0.10
	ISIN	GB00BP7NQJ77
	Nature of the transaction	On-market purchase under the Company's Share Incentive Plan
	Price(s) and volume(s)	315 Ordinary Shares at £1.43
	Date of the transaction	21/07/2025
	Place of the transaction	London Stock Exchange
(d)	Description of the financial instrument	Ordinary shares of £0.10
	ISIN	GB00BP7NQJ77
	Nature of the transaction	On-market purchase under the Company's Share Incentive Plan
	Price(s) and volume(s)	298 Ordinary Shares at £1.51
	Date of the transaction	20/10/2025
	Place of the transaction	London Stock Exchange
(e)	Description of the financial instrument	Ordinary shares of £0.10
	ISIN	GB00BP7NQJ77
	Nature of the transaction	On-market purchase under the Company's Share Incentive Plan
	Price(s) and volume(s)	288 Ordinary Shares at £1.56
	Date of the transaction	20/01/2026
	Place of the transaction	London Stock Exchange
(f)	Description of the financial instrument	Ordinary shares of £0.10
	ISIN	GB00BP7NQJ77
	Nature of the transaction	On-market purchase under the Company's Share Incentive Plan
	Price(s) and volume(s)	250 Ordinary Shares at £1.80
	Date of the transaction	20/04/2026
	Place of the transaction	London Stock Exchange

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