Holding(s) in Company

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NOTIFICATION OF MAJOR HOLDINGS

1a. Identity of the issuer or the underlying issuer of existing shares to which voting rights are attached ii:			One Health Group plc
1b. Please indicate if the issuer is a non-UK issuer (please mark with an “X” if appropriate)
Non-UK issuer
2. Reason for the notification (please mark the appropriate box or boxes with an “X”)
An acquisition or disposal of voting rights
An acquisition or disposal of financial instruments
An event changing the breakdown of voting rights						X
Other (please specify) iii:
3. Details of person subject to the notification obligation iv
Name			Derek Bickerstaff
City and country of registered office (if applicable)			Sheffield, UK
4. Full name of shareholder(s) (if different from 3.) v
Name
City and country of registered office (if applicable)
5. Date on which the threshold was crossed or reached vi:			30 October 2026
6. Date on which issuer notified (DD/MM/YYYY):			6 November 2026
7. Total positions of person(s) subject to the notification obligation
	% of voting rights attached to shares (total of 8. A)	% of voting rights through financial instruments (total of 8.B 1 + 8.B 2)		Total of both in % (8.A + 8.B)	Total number of voting rights held in issuer (8.A + 8.B) vii
Resulting situation on the date on which threshold was crossed or reached	5,550,000			39.84	5,550,000
Position of previous notification (if applicable)	5,550,000			40.12

8. Notified details of the resulting situation on the date on which the threshold was crossed or reached viii
A: Voting rights attached to shares
Class/type of shares ISIN code (if possible)		Number of voting rights ix					% of voting rights
		Direct (DTR5.1)		Indirect (DTR5.2.1)			Direct (DTR5.1)		Indirect (DTR5.2.1)
GB00BNNT0595		5,550,000					39.84


SUBTOTAL 8. A		5,550,000					39.84

B 1: Financial Instruments according to DTR5.3.1R (1) (a)
Type of financial instrument		Expiration date x	Exercise/ Conversion Period xi			Number of voting rights that may be acquired if the instrument is exercised/converted.			% of voting rights



			SUBTOTAL 8. B 1

B 2: Financial Instruments with similar economic effect according to DTR5.3.1R (1) (b)
Type of financial instrument	Expiration date x		Exercise/ Conversion Period xi		Physical or cash Settlement xii			Number of voting rights	% of voting rights



					SUBTOTAL 8.B.2

9. Information in relation to the person subject to the notification obligation (please mark the applicable box with an “X”)
Person subject to the notification obligation is not controlled by any natural person or legal entity and does not control any other undertaking(s) holding directly or indirectly an interest in the (underlying) issuer xiii
Full chain of controlled undertakings through which the voting rights and/or the financial instruments are effectively held starting with the ultimate controlling natural person or legal entity (please add additional rows as necessary) xiv				x
Name xv	% of voting rights if it equals or is higher than the notifiable threshold	% of voting rights through financial instruments if it equals or is higher than the notifiable threshold	Total of both if it equals or is higher than the notifiable threshold
Derek Bickerstaff	31.94% (4,450,000 shares)		31.94%
Michelle Bickerstaff	7.90% (1,100,000 shares)		7.90%




10. In case of proxy voting, please identify:
Name of the proxy holder
The number and % of voting rights held
The date until which the voting rights will be held

11. Additional information xvi
The change in the percentage of shares held is due entirely to the issue of new shares following the exercise of share options on 29 October 2026.

Place of completion	London, UK
Date of completion	6 November 2026

Summary by AI ^BETAClose X

Companies

UK 100

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Holding(s) in Company

Summary by AI BETAClose X

Companies

UK 100

Latest directors dealings

Summary by AI ^BETAClose X