RNS Number : 0896B
Spirent Communications PLC
26 September 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
24-Sep-2025
6. Date on which Issuer notified
26-Sep-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
4.871089
1.181775
6.052864
35699967
Position of previous notification (if applicable)
4.949119
0.956106
5.905225
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
28729576
4.871089
Sub Total 8.A
28729576
4.871089%
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
28/11/2025
28/11/2025
Cash
2475001
0.419626
Cash-settled Equity Swap
15/04/2026
15/04/2026
Cash
1072554
0.181837
Cash-settled Equity Swap
19/08/2026
19/08/2026
Cash
220
0.000036
Cash-settled Equity Swap
26/08/2026
26/08/2026
Cash
43767
0.007414
Cash-settled Equity Swap
18/09/2026
18/09/2026
Cash
53440
0.009059
Cash-settled Equity Swap
06/10/2026
06/10/2026
Cash
1827150
0.309789
Cash-settled Equity Swap
19/10/2026
19/10/2026
Cash
13466
0.002283
Cash-settled Equity Swap
21/10/2026
21/10/2026
Cash
27207
0.004609
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
1457348
0.247082
Sub Total 8.B2
6970391
1.181775%
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
4.871089
6.052864%
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%)
12. Date of Completion
26-Sep-2025
13. Place Of Completion
London, United Kingdom
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