Diploma Regulatory News (DPLM)

TR-1: Standard form for notification of major holdings

NOTIFICATION OF MAJOR HOLDINGS (to be sent to the relevant issuer and to the FCA in Microsoft Word format if possible)

1a. Identity of the issuer or the underlying issuer of existing shares to which voting rights are attached.

Diploma PLC

1b. Please indicate if the issuer is a non-UK issuer (please mark with an "X" if appropriate)

2. Reason for the notification (please mark the appropriate box or boxes with an "X")

3. Details of person subject to the notification obligation

Name

Aegon Asset Management UK PLC

City and country of registered office (if applicable)

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

Name

City and country of registered office (if applicable)

5. Date on which the threshold was crossed or reached :

23/09/2020

6. Date on which issuer notified (DD/MM/YYYY):

25/09/2020

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 of issuer

Resulting situation on the date on which threshold was crossed or reached

3.11%

0.01%

3.12%

113,239,555

Position of previous notification (if

applicable)

n/a

n/a

n/a

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

A: Voting rights attached to shares

Number of voting rights

% of voting rights

Class/type of

sharesISIN code (if possible)

Direct(Art 9 of Directive 2004/109/EC) (DTR5.1)

Indirect(Art 10 of Directive 2004/109/EC) (DTR5.2.1)

Direct(Art 9 of Directive 2004/109/EC) (DTR5.1)

Indirect(Art 10 of Directive 2004/109/EC) (DTR5.2.1)

GB0001826634

1,772,115

1,757,017

1.56%

1.55%

SUBTOTAL 8. A

3,529,132

3.11%

B 1: Financial Instruments according to Art. 13(1)(a) of Directive 2004/109/EC (DTR5.3.1.1 (a))

Type of financial instrument

Expirationdate

Exercise/Conversion Period 

Number of voting rights that may be acquired if the instrument isexercised/converted. 

% of voting rights

SUBTOTAL 8. B 1

B 2: Financial Instruments with similar economic effect according to Art. 13(1)(b) of Directive 2004/109/EC (DTR5.3.1.1 (b))

Type of financial instrument

Expirationdate 

Exercise/Conversion Period 

Physical or cashsettlement 

Number of voting rights

% of voting rights

CFD

10,251

0.01%

SUBTOTAL 8.B.2

10,251

0.01%

9. Information in relation to the person subject to the notification obligation (please mark theapplicable 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

X

Full chain of controlled undertakings through which the voting rights and/or thefinancial instruments are effectively held starting with the ultimate controlling natural person or legal entity (please add additional rows as necessary)

Name

% of voting rights if it equals or is higher than the notifiable threshold

% of voting rights through financial in-struments if it equals or is higher than the notifiable threshold

Total of both if it equals or is higher than the notifiable threshold

Aegon Asset Management:-Aegon Asset Management UK PLCAegon Asset Management UK ICVCAegon Asset Management UK VCIC

10. In case of proxy voting, please identify:

Name of the proxy holder

Aegon Asset Management UK PLC

The number and % of voting rights held

The date until which the voting rights will be held

11. Additional information

Aegon Asset Management UK plc acquires holdings as agent and discretionary manager for underlying clients including: UCITS funds, other collective investment schemes and segregated, institutional clients. Exercise of voting rights is controlled by Aegon Asset Management UK plc.

Place of completion

Edinburgh, Scotland, United Kingdom

Date of completion

24 September 2020