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RNS Number : 4286M Spirent Communications PLC 11 June 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
05-Jun-2025
6. Date on which Issuer notified
09-Jun-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 0.977764 4.063057 5.040821 29294918
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
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 5682276 0.977764
Sub Total 8.A 5682276 0.977764%
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 % of voting rights
exercised/converted
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 18/09/2025 18/09/2025 Cash 6523613 1.122535
Cash-settled Equity Swap 28/11/2025 28/11/2025 Cash 3452 0.000593
Cash-settled Equity Swap 16/12/2025 16/12/2025 Cash 9506829 1.635864
Cash-settled Equity Swap 15/04/2026 15/04/2026 Cash 109115 0.018772
Cash-settled Equity Swap 08/05/2026 08/05/2026 Cash 2378288 0.409238
Cash-settled Equity Swap 28/05/2026 28/05/2026 Cash 1045 0.000178
Cash-settled Equity Swap 10/06/2026 10/06/2026 Cash 20073 0.003451
Cash-settled Equity Swap 23/06/2026 23/06/2026 Cash 2245377 0.386354
Cash-settled Equity Swap 25/06/2026 25/06/2026 Cash 7796 0.001339
Cash-settled Equity Swap 02/07/2026 02/07/2026 Cash 651133 0.112039
Cash-settled Equity Swap 08/07/2026 08/07/2026 Cash 7656 0.001317
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 2158027 0.371337
Sub Total 8.B2 23612642 4.063057%
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 Total of both if it equals or is higher than the notifiable threshold
than the notifiable threshold
JPMorgan Chase & Co. J.P. Morgan Securities plc 4.063057 4.382353%
JPMorgan Chase & Co. J.P. Morgan Securities LLC
JPMorgan Chase & Co. JPMorgan Chase Bank, National Association
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 Holdings LLC (100%)
J.P. Morgan Broker-Dealer Holdings Inc. (100%)
J.P. Morgan Securities LLC (100%)
JPMorgan Chase & Co.
JPMorgan Chase Bank, National Association (100%)
12. Date of Completion
09-Jun-2025
13. Place Of Completion
London
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