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Arqit Quantum (ARQQ)

16.65 -1.70 (9.26%)

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- Earnings (8/28/25 *Est.)

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Form 4 Arqit Quantum Inc. For: Jul 17 Filed by: Calabria Carlo July 21, 2026 2:16 PM - SEC Filing Form 4 Arqit Quantum Inc. For: Jul 17 Filed by: Lefebvre d'Ovidio Manfredi July 21, 2026 2:10 PM - SEC Filing Form 4 Arqit Quantum Inc. For: Jul 17 Filed by: Ritchie Garth July 21, 2026 2:09 PM - SEC Filing Form 4 Arqit Quantum Inc. For: Jul 15 Filed by: Calabria Carlo July 17, 2026 6:24 PM - SEC Filing Form 4 Arqit Quantum Inc. For: Jul 15 Filed by: Ritchie Garth July 17, 2026 6:22 PM - SEC Filing Form 4 Arqit Quantum Inc. For: Jul 15 Filed by: Lefebvre d'Ovidio Manfredi July 17, 2026 6:21 PM - SEC Filing Form 4 Arqit Quantum Inc. For: Jul 09 Filed by: Lefebvre d'Ovidio Manfredi July 13, 2026 4:06 PM - SEC Filing Form 4 Arqit Quantum Inc. For: Jul 07 Filed by: Lefebvre d'Ovidio Manfredi July 9, 2026 4:05 PM - SEC Filing Form 4 Arqit Quantum Inc. For: Jul 02 Filed by: Lefebvre d'Ovidio Manfredi July 7, 2026 4:27 PM - SEC Filing Form 4 Arqit Quantum Inc. For: Jul 01 Filed by: Lefebvre d'Ovidio Manfredi July 6, 2026 6:34 PM - SEC Filing Form 4 Arqit Quantum Inc. For: Jul 01 Filed by: Calabria Carlo July 6, 2026 6:10 PM - SEC Filing Form 4 Arqit Quantum Inc. For: Jul 01 Filed by: Willcocks Patrick July 6, 2026 5:47 PM - SEC Filing Form 4 Arqit Quantum Inc. For: Jul 01 Filed by: Ritchie Garth July 6, 2026 5:19 PM - SEC Filing Form 4 Arqit Quantum Inc. For: Jul 01 Filed by: Leaver Andrew July 6, 2026 5:14 PM - SEC Filing Form 4 Arqit Quantum Inc. For: Jul 01 Filed by: Wilder Ben Simon July 6, 2026 4:12 PM - SEC Filing Form 4 Arqit Quantum Inc. For: Jul 01 Filed by: Feenan Paul July 6, 2026 3:25 PM - SEC Filing Form 144 Arqit Quantum Inc. Filed by: Ritchie Garth July 2, 2026 5:09 PM - SEC Filing Form 144 Arqit Quantum Inc. Filed by: Willcocks Patrick July 2, 2026 5:02 PM - SEC Filing Form 144 Arqit Quantum Inc. Filed by: Feenan Paul July 2, 2026 4:58 PM - SEC Filing Form 144 Arqit Quantum Inc. Filed by: Leaver Andrew July 2, 2026 4:53 PM - SEC Filing Form 4 Arqit Quantum Inc. For: Jun 30 Filed by: Lefebvre d'Ovidio Manfredi July 2, 2026 4:51 PM - SEC Filing Form 144 Arqit Quantum Inc. Filed by: Wilder Ben Simon July 2, 2026 4:46 PM - SEC Filing Form 4 Arqit Quantum Inc. For: Jun 30 Filed by: Willcocks Patrick July 2, 2026 11:16 AM - SEC Filing Form 4 Arqit Quantum Inc. For: Jun 26 Filed by: Lefebvre d'Ovidio Manfredi June 30, 2026 4:05 PM - SEC Filing Form 144 Arqit Quantum Inc. Filed by: Willcocks Patrick June 30, 2026 3:01 PM - SEC Filing Form 144 Arqit Quantum Inc. Filed by: Pointon Nicholas June 30, 2026 12:01 PM - SEC Filing Form 4 Arqit Quantum Inc. For: Jun 24 Filed by: Lefebvre d'Ovidio Manfredi June 26, 2026 4:05 PM - SEC Filing Form 4 Arqit Quantum Inc. For: Jun 22 Filed by: Bers Jennifer June 24, 2026 4:27 PM - SEC Filing Form 4 Arqit Quantum Inc. For: Jun 22 Filed by: Lefebvre d'Ovidio Manfredi June 24, 2026 4:05 PM - SEC Filing Form SCHEDULE 13G Arqit Quantum Inc. Filed by: ICS OPPORTUNITIES, LTD. June 23, 2026 6:15 PM - SEC Filing Form 4 Arqit Quantum Inc. For: Apr 01 Filed by: Russell Robert Michael June 22, 2026 5:48 PM - SEC Filing Form 4 Arqit Quantum Inc. For: Apr 01 Filed by: Bers Jennifer June 22, 2026 4:20 PM - SEC Filing Form 4 Arqit Quantum Inc. For: Jun 17 Filed by: Lefebvre d'Ovidio Manfredi June 22, 2026 4:05 PM - SEC Filing Form 4 Arqit Quantum Inc. For: Jun 15 Filed by: Lefebvre d'Ovidio Manfredi June 17, 2026 4:05 PM - SEC Filing Form 144 Arqit Quantum Inc. Filed by: Pointon Nicholas June 17, 2026 3:15 PM - SEC Filing The Quiet Race to Rewire the World's Encryption Before Quantum Computers Break It June 17, 2026 8:45 AM - PR NewsWire Form 6-K Arqit Quantum Inc. For: Jun 17 June 17, 2026 7:15 AM - SEC Filing Form 4 Arqit Quantum Inc. For: Jun 11 Filed by: Lefebvre d'Ovidio Manfredi June 15, 2026 4:05 PM - SEC Filing Form 4 Arqit Quantum Inc. For: Jun 09 Filed by: Lefebvre d'Ovidio Manfredi June 11, 2026 4:06 PM - SEC Filing The Decade-Defining Race to Lock Down the World's Data Before Quantum Breaks It June 10, 2026 8:45 AM - StreetInsider Form 4 Arqit Quantum Inc. For: Jun 05 Filed by: Lefebvre d'Ovidio Manfredi June 9, 2026 4:06 PM - SEC Filing Form 4 Arqit Quantum Inc. For: Jun 03 Filed by: Calabria Carlo June 5, 2026 5:43 PM - SEC Filing Form 4 Arqit Quantum Inc. For: Jun 05 Filed by: Ritchie Garth June 5, 2026 5:39 PM - SEC Filing Form 4 Arqit Quantum Inc. For: Jun 03 Filed by: Lefebvre d'Ovidio Manfredi June 5, 2026 4:06 PM - SEC Filing Form 3 Arqit Quantum Inc. For: Jun 01 Filed by: Russell Robert Michael June 5, 2026 7:13 AM - SEC Filing Form 3 Arqit Quantum Inc. For: May 01 Filed by: Levis Cristina June 5, 2026 6:55 AM - SEC Filing Form 4 Arqit Quantum Inc. For: Jun 01 Filed by: Lefebvre d'Ovidio Manfredi June 3, 2026 4:06 PM - SEC Filing The Company Trying to Make Your AI Data Worthless to Hackers June 3, 2026 1:44 PM - Globe NewsWire Form 4 Arqit Quantum Inc. For: May 28 Filed by: Lefebvre d'Ovidio Manfredi June 1, 2026 4:07 PM - SEC Filing Form 4 Arqit Quantum Inc. For: May 26 Filed by: Lefebvre d'Ovidio Manfredi May 28, 2026 4:49 PM - SEC Filing Form SCHEDULE 13D/A Arqit Quantum Inc. Filed by: Heritage Assets SCSp. May 26, 2026 4:16 PM - SEC Filing Form 4 Arqit Quantum Inc. For: May 21 Filed by: Lefebvre d'Ovidio Manfredi May 26, 2026 4:13 PM - SEC Filing Form 4 Arqit Quantum Inc. For: May 19 Filed by: Lefebvre d'Ovidio Manfredi May 21, 2026 4:06 PM - SEC Filing Form 424B3 Arqit Quantum Inc. May 21, 2026 8:26 AM - SEC Filing Form 6-K Arqit Quantum Inc. For: Mar 31 May 21, 2026 8:21 AM - SEC Filing Arqit Quantum Inc. Announces Financial Results for First Half of Fiscal Year 2026 May 21, 2026 8:00 AM - StreetInsider Form 4 Arqit Quantum Inc. For: Apr 20 Filed by: Pointon Nicholas May 20, 2026 8:18 AM - SEC Filing Form 4 Arqit Quantum Inc. For: May 15 Filed by: Lefebvre d'Ovidio Manfredi May 19, 2026 4:05 PM - SEC Filing Form 4 Arqit Quantum Inc. For: May 13 Filed by: Lefebvre d'Ovidio Manfredi May 15, 2026 4:08 PM - SEC Filing Form 4 Arqit Quantum Inc. For: May 12 Filed by: Lefebvre d'Ovidio Manfredi May 13, 2026 4:06 PM - SEC Filing Form 4 Arqit Quantum Inc. For: May 08 Filed by: Lefebvre d'Ovidio Manfredi May 12, 2026 4:06 PM - SEC Filing Arqit Quantum Inc. Sets First Half 2026 Earnings Conference Call for Thursday, May 21, 2026 at 11:00 a.m. ET May 11, 2026 11:15 AM - Globe NewsWire Form 4 Arqit Quantum Inc. For: May 07 Filed by: Ritchie Garth May 8, 2026 5:37 PM - SEC Filing Form 4 Arqit Quantum Inc. For: May 06 Filed by: Lefebvre d'Ovidio Manfredi May 8, 2026 5:25 PM - SEC Filing Form 4 Arqit Quantum Inc. For: May 06 Filed by: Calabria Carlo May 8, 2026 5:11 PM - SEC Filing Form 4 Arqit Quantum Inc. For: May 06 Filed by: Lefebvre d'Ovidio Manfredi May 8, 2026 4:06 PM - SEC Filing Form 4 Arqit Quantum Inc. For: May 04 Filed by: Lefebvre d'Ovidio Manfredi May 6, 2026 4:06 PM - SEC Filing Form 4 Arqit Quantum Inc. For: Apr 30 Filed by: Lefebvre d'Ovidio Manfredi May 4, 2026 4:06 PM - SEC Filing Form 6-K Arqit Quantum Inc. For: May 01 May 1, 2026 11:50 AM - SEC Filing Form 4 Arqit Quantum Inc. For: Apr 29 Filed by: Lefebvre d'Ovidio Manfredi April 30, 2026 4:09 PM - SEC Filing Form 4 Arqit Quantum Inc. For: Apr 27 Filed by: Lefebvre d'Ovidio Manfredi April 29, 2026 4:07 PM - SEC Filing Form 4 Arqit Quantum Inc. For: Apr 23 Filed by: Lefebvre d'Ovidio Manfredi April 27, 2026 4:06 PM - SEC Filing Full Article List