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Holding(s) in Company

In brief · summary, not quotable

Gresham House Asset Management Ltd has acquired a significant stake in Diaceutics PLC, increasing its voting rights from 17.02% to 18.23%, representing 15,535,527 voting rights. This notification, dated October 5, 2026, indicates a change in major shareholding and is a key development for investors monitoring the company's ownership structure.

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1a. Identity of the issuer or the underlying issuer of existing shares to which voting rights are attached ii :Diaceutics PLC
  • Please indicate if the issuer is a non-UK issuer (please mark with an "X" if appropriate)

Non-UK issuer

  • Reason for the notification (please mark the appropriate box or boxes with an "X")
An acquisition or disposal of voting rightsX

An acquisition or disposal of financial instruments

An event changing the breakdown of voting rights

Other (please specify) iii :

Details of person subject to the notification obligation iv

NameGresham House Asset Management Ltd
City and country of registered office (if applicable)London, UK

Full name of shareholder(s) (if different from 3.) v

Name

City and country of registered office (if applicable)London, UK
5. Date on which the threshold was crossed or reached vi :05/10/2026
6. Date on which issuer notified (DD/MM/YYYY):06/10/2026
  • Total positions of person(s) subject to the notification obligation
Resulting situation on the date on which threshold was crossed or reached18.23%18.23%15,535,527
Position of previous notification (if applicable)17.02%17.02%
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)
GB00BJQTGV6415,535,52718.23%
SUBTOTAL 8. A15,535,52718.23%

B 1: Financial Instruments according to DTR5.3.1R (1) (a)

SUBTOTAL 8. B 1

B 2: Financial Instruments with similar economic effect according to DTR5.3.1R (1) (b)

SUBTOTAL 8.B.2

Gresham House Asset Management Limited18.23%18.23%
10. In case of proxy voting, please identify:
Name of the proxy holderGresham House Asset Management Ltd
The number and % of voting rights heldN/A
The date until which the voting rights will be heldN/A
11. Additional information xvi
Place of completionGresham House Asset Management Ltd
Date of completion06/10/2026

Notes

Name of ultimate controlling person A (chain 1)

Name of controlled undertaking B

Name of controlled undertaking C

Name of ultimate controlling person A (chain 2)

Name of controlled undertaking B

Name of controlled undertaking D

Name of ultimate controlling person A (chain3)

Name of controlled undertaking E

Name of controlled undertaking F

xvi Example: Correction of a previous notification.

Cleaned text: letterheads, contacts and legal notices removed. View the original announcement ↗ · Company filings. Not investment advice.

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