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