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Last checked at 
25 Nov 2025 12:45
25 November 2025
AB Dynamics plc
("AB Dynamics", or the "Company")
PDMR/PCA Shareholding
AB Dynamics plc, the designer, manufacturer and supplier of advanced testing, simulation and measurement products to the global transport market, announces that it has been notified of certain transactions in the Company's ordinary shares of 1 penny each ("Ordinary Shares") that Mr Tony Best, Special Advisor to the Board and Mrs Naemi Best, a person closely associated with Mr Best, have each made for the purposes of personal tax planning.
Mr Best gifted 2,094,328 Ordinary Shares equally between two newly established trusts; the Best Family Beneficiary Protection Trust 2025 (HLC) and the Best Family Beneficiary Protection Trust 2025 (CAB) (together, the "Trusts"). Mrs Best gifted 601,274 Ordinary Shares equally between the Trusts. Mr and Mrs Best are named trustees of the Trusts, which were established for the benefit of Mr and Mrs Best's adult children and remoter issue.
Following these transactions, Mr Best and persons closely associated with him, retain an interest in 2,695,605 Ordinary Shares, representing approximately 11.74% of the Company's current issued share capital. The trustees of each of the Best Family Beneficiary Protection Trust 2025 (HLC) and the Best Family Beneficiary Protection Trust 2025 (CAB) have an interest in 1,347,801 Ordinary Shares, each representing approximately 5.87% of the Company's current issued share capital.
Enquiries:
AB Dynamics plc | 01225 860 200 |
Sarah Matthews-DeMers, Chief Financial Officer and Chief Executive Officer designate | |
Peel Hunt LLP (Nominated Adviser and Joint Broker) | 0207 418 8900 |
Mike Bell Ed Allsopp | |
Stifel Nicolaus Europe Limited (Joint Broker) | 0207 710 7600 |
Matthew Blawat Orme Clarke | |
Teneo | 0207 353 4200 |
James Macey White Matt Low |
The person responsible for arranging the release of this information is David Forbes, Company Secretary.
The below notification made in accordance with the requirements of the EU Market Abuse Regulation, provides further detail:
1 | Details of the relevant person / person closely associated | |||||||
a) | Name | Mr Tony Best | ||||||
2 | Reason for the notification | |||||||
a) | Position/status | Special Advisor to the Board (PDMR) | ||||||
b) | Initial notification/ Amendment | Initial notification | ||||||
3 | Details of the issuer | |||||||
a) | Name | AB Dynamics plc | ||||||
b) | LEI | 213800OFXZP4A7I47K43 | ||||||
4 | Details of the transaction(s): section to be repeated for (i) each type of instrument; (ii each type of transaction; (iii each date; and (iv) each place where transactions have been conducted | |||||||
a) | Description of the financial instrument, type of instrument | Ordinary Shares | ||||||
Identification code | GB00B9GQVG73 | |||||||
b) | Nature of the transaction | 1. Gift of Ordinary Shares to the Trustees of the Best Family Beneficiary Protection Trust 2025 (HLC) 2. Gift of Ordinary Shares to the Trustees of the Best Family Beneficiary Protection Trust 2025 (CAB) | ||||||
c) | Price(s) and volume(s) |
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d) | Aggregated information | |||||||
- Aggregated volume |
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- Price | ||||||||
e) | Date of the transaction | 20 November 2025 | ||||||
f) | Place of the transaction | Outside of a trading platform | ||||||
1 | Details of the relevant person / person closely associated | |||||||
a) | Name | Mrs Naemi Best | ||||||
2 | Reason for the notification | |||||||
a) | Position/status | Person closely associated (PCA) with Mr Tony Best | ||||||
b) | Initial notification/ Amendment | Initial notification | ||||||
3 | Details of the issuer | |||||||
a) | Name | AB Dynamics plc | ||||||
b) | LEI | 213800OFXZP4A7I47K43 | ||||||
4 | Details of the transaction(s): section to be repeated for (i) each type of instrument; (ii each type of transaction; (iii each date; and (iv) each place where transactions have been conducted | |||||||
a) | Description of the financial instrument, type of instrument | Ordinary Shares | ||||||
Identification code | GB00B9GQVG73 | |||||||
b) | Nature of the transaction | 1. Gift of Ordinary Shares to the Trustees of the Best Family Beneficiary Protection Trust 2025 (HLC) 2. Gift of Ordinary Shares to the Trustees of the Best Family Beneficiary Protection Trust 2025 (CAB) | ||||||
c) | Price(s) and volume(s) |
| ||||||
d) | Aggregated information | |||||||
- Aggregated volume |
| |||||||
- Price | ||||||||
e) | Date of the transaction | 20 November 2025 | ||||||
f) | Place of the transaction | Outside of a trading platform | ||||||
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