PureTech Health plc

Major Shareholding Notification • Oct 10, 2025

National Storage Mechanism | Additional information

RNS Number : 9962C

PureTech Health PLC

10 October 2025

TR-1: Standard form for notification of major holdings

1. Issuer Details

ISIN

GB00BY2Z0H74

Issuer Name

PURETECH HEALTH PLC

UK or Non-UK Issuer

UK

2. Reason for Notification

An acquisition or disposal of voting rights; An acquisition or disposal of financial instruments; Other

Comments

A change in nature of attribution due to a reduction in Right to Recall securities and an acquisition of voting rights

3. Details of person subject to the notification obligation

Name

Citigroup Inc.

City of registered office (if applicable)

WILMINGTON

Country of registered office (if applicable)

United States of America

4. Details of the shareholder

Full name of shareholder(s) if different from the person(s) subject to the notification obligation, above

City of registered office (if applicable)

Country of registered office (if applicable)

5. Date on which the threshold was crossed or reached

09-Oct-2025

6. Date on which Issuer notified

10-Oct-2025

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
Resulting situation on the date on which threshold was crossed or reached	5.592496	0.087731	5.680227	13728201
Position of previous notification (if applicable)	4.809764	0.852061	5.661825

8. Notified details of the resulting situation on the date on which the threshold was crossed or reached

8A. Voting rights attached to shares

Class/Type of shares ISIN code(if possible)	Number of direct voting rights (DTR5.1)	Number of indirect voting rights (DTR5.2.1)	% of direct voting rights (DTR5.1)	% of indirect voting rights (DTR5.2.1)
GB00BY2Z0H74	13516170		5.592496
Sub Total 8.A	13516170		5.592496%

8B1. Financial Instruments according to (DTR5.3.1R.(1) (a))

Type of financial instrument	Expiration date	Exercise/conversion period	Number of voting rights that may be acquired if the instrument is exercised/converted	% of voting rights
Right to Recall			45001	0.018620
Sub Total 8.B1			45001	0.018620%

8B2. Financial Instruments with similar economic effect according to (DTR5.3.1R.(1) (b))

Type of financial instrument	Expiration date	Exercise/conversion period	Physical or cash settlement	Number of voting rights	% of voting rights
OTC swap	11.09.2026		Cash	167030	0.069111
Sub Total 8.B2				167030	0.069111%

9. Information in relation to the person subject to the notification obligation

2. 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 entities (please add additional rows as necessary)

Ultimate controlling person	Name of controlled undertaking	% 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
Citigroup Inc.
Citigroup Inc.	Citigroup Global Markets Holdings Inc.
Citigroup Inc.	Citigroup Financial Products Inc.
Citigroup Inc.	Citigroup Global Markets Holdings Bahamas Limited
Citigroup Inc.	Citigroup Global Markets Limited	5.592496		5.680227%

10. In case of proxy voting

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

12. Date of Completion

10-Oct-2025

13. Place Of Completion

Belfast

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