Holding(s) in Company

Spirent Communications PLC

21 July 2025

 

TR-1: Standard form for notification of major holdings

1. Issuer Details

ISIN

GB0004726096

Issuer Name

SPIRENT COMMUNICATIONS PLC

UK or Non-UK Issuer

UK

2. Reason for Notification

An acquisition or disposal of voting rights

3. Details of person subject to the notification obligation

Name

JPMorgan Chase & Co.

City of registered office (if applicable)

Country of registered office (if applicable)

US

4. Details of the shareholder

Name	City of registered office	Country of registered office
J.P. Morgan Securities plc

5. Date on which the threshold was crossed or reached

17-Jul-2025

6. Date on which Issuer notified

21-Jul-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	4.171228	3.423602	7.594830	44137517
Position of previous notification (if applicable)	3.116540	3.613304	6.729844

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)
GB0004726096		24241093		4.171228
Sub Total 8.A	24241093		4.171228%

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
Sub Total 8.B1

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
Cash-settled Equity Swap	16/12/2025	16/12/2025	Cash	9506829	1.635864
Cash-settled Equity Swap	29/12/2025	29/12/2025	Cash	3352486	0.576871
Cash-settled Equity Swap	15/04/2026	15/04/2026	Cash	37021	0.006365
Cash-settled Equity Swap	08/05/2026	08/05/2026	Cash	3469492	0.597004
Cash-settled Equity Swap	28/05/2026	28/05/2026	Cash	1273	0.000219
Cash-settled Equity Swap	23/06/2026	23/06/2026	Cash	1742404	0.299807
Cash-settled Equity Swap	02/07/2026	02/07/2026	Cash	481061	0.082773
Cash-settled Equity Swap	19/08/2026	19/08/2026	Cash	2684	0.000461
Cash-settled Equity Swap	30/05/2028	30/05/2028	Cash	238	0.000040
Cash-settled Equity Swap	02/05/2030	02/05/2030	Cash	1302936	0.224198
Sub Total 8.B2				19896424	3.423602%

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
JPMorgan Chase & Co.	J.P. Morgan Securities plc	3.513154	3.423602	6.936756%
JPMorgan Chase & Co.	JPMorgan Chase Bank, National Association
JPMorgan Chase & Co.	J.P. Morgan SE

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

Chain of controlled undertakings:

JPMorgan Chase & Co.
JPMorgan Chase Bank, National Association (100%)
J.P. Morgan International Finance Limited (100%)
J.P. Morgan Capital Holdings Limited (100%)
J.P. Morgan Securities plc (100%)

JPMorgan Chase & Co.
JPMorgan Chase Bank, National Association (100%)

JPMorgan Chase & Co.
JPMorgan Chase Bank, National Association (100%)
J.P. Morgan International Finance Limited (100%)
J.P. Morgan SE (100%)

12. Date of Completion

21-Jul-2025

13. Place Of Completion

London

 

END