| Nov 06, 2025 |
Spirent Communications plc - Mandatory Exchange for Cash/Termination |
 |
| Oct 02, 2025 |
Spirent Communications plc - Books Closed / Open Announcement |
 |
| Jun 26, 2025 |
Spirent Communications plc - Books Closed / Open Announcement |
 |
| Aug 04, 2023 |
Spirent Communications plc - Books Closed / Open for Issuance |
 |
| Mar 09, 2023 |
Spirent Communications plc - Books Closed / Open for Issuance |
 |
| Aug 08, 2022 |
Spirent Communications plc - Books Closed / Open for Issuance |
 |
| Mar 15, 2022 |
Spirent Communications plc - Books Re-opened for Issuance |
 |
| Mar 11, 2022 |
Spirent Communications plc - Books Closed for Issuance |
 |
| Aug 09, 2021 |
Spirent Communications plc - Books Closed / Open for Issuance |
 |
| Mar 12, 2021 |
Spirent Communications plc - Books Closed / Open for Issuance |
 |
| Aug 11, 2020 |
Spirent Communications plc - Revised - Books Closed / Open for Issuance |
 |
| Aug 07, 2020 |
Spirent Communications plc - Books Closed / Open for Issuance |
 |
| Mar 09, 2020 |
Spirent Communications plc - Books Closed / Open for Issuance |
 |
| Aug 08, 2019 |
Spirent Communications plc - Books Closed / Open for Issuance |
 |
| Aug 02, 2019 |
Spirent Communications plc -Books Closed for Issuance |
 |
| Mar 14, 2019 |
Spirent Communications plc - Books Closed / Open for Issuance |
 |
| Mar 11, 2019 |
Spirent Communications plc - Books Closed for Issuance |
 |
| Sep 11, 2018 |
Spirent Communications - Books Closed / Open for Issuance |
 |
| Aug 03, 2018 |
Spirent Communications plc - Books Closed for Issuance |
 |
| May 25, 2018 |
Spirent Communications plc - Books Re-opened for Issuance |
 |
| Mar 09, 2018 |
Spirent Communications plc - Books Closed for Issuance |
 |
| Aug 16, 2017 |
Spirent Communications plc - Books Closed / Open for Issuance |
 |
| Aug 04, 2017 |
Spirent Communications plc - Books Closed for Issuance |
 |
| Mar 03, 2017 |
Spirent Communications plc - Books Closed / Open for Issuance |
 |
| Aug 03, 2016 |
Spirent Communications plc - Books Closed / Open for Issuance |
 |
| Feb 26, 2016 |
Spirent Communications plc - Books Closed / Open for Issuance |
 |
| Aug 10, 2015 |
Spirent Communications plc - Books Closed / Open for Issuance |
 |
| Feb 26, 2015 |
Spirent Communications plc - Books Closed / Open for Issuance |
 |
| Aug 05, 2014 |
Spirent Communications plc - Books Re-opened for Issuance |
 |
| Aug 04, 2014 |
Spirent Communications plc - Books Closed for Issuance |
 |
| Feb 28, 2014 |
Spirent Communications plc - Books Closed / Open for Issuance |
 |
| Aug 02, 2013 |
Spirent Communications plc - Books Closed / Open for Issuance |
 |
| Mar 04, 2013 |
Spirent Communications plc - Books Closed / Open for Issuance |
 |
| Aug 02, 2012 |
Spirent Communications plc - Books Closed / Open for Issuance |
 |
| Mar 02, 2012 |
Spirent Communications plc - Books Closed / Open for Issuance |
 |
| Aug 08, 2011 |
Spirent Communications plc - Books Closed / Open for Issuance |
 |
| Mar 07, 2011 |
Spirent Communications plc - Books Closed / Open for Issuance |
 |
| Feb 09, 2007 |
Spirent Communications plc - Books Re-opened for Issuance |
 |
| Dec 05, 2006 |
Spirent Communications plc - Books Closed for Issuance |
 |
| Jul 06, 2001 |
Spirent to Delist from OTC and Upgrade to NYSE; Also to Implement Ratio, CUSIP and Symbol Changes |
 |