StreetInsider.com News Articles

Form 4 Arqit Quantum Inc. For: Oct 15 Filed by: Lefebvre d'Ovidio Manfredi

Tue, 20 Oct 2026 21:38:00 -0400

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Form 4 Arqit Quantum Inc. For: Oct 15 Filed by: Calabria Carlo

Tue, 20 Oct 2026 17:36:00 -0400

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Form 4 Arqit Quantum Inc. For: Oct 15 Filed by: Ritchie Garth

Tue, 20 Oct 2026 17:35:00 -0400

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Arqit invests in Sirius to expand quantum-safe defence comms

Tue, 20 Oct 2026 09:00:23 -0400

Arqit Quantum Inc. (NASDAQ: ARQQ) announced a strategic investment in Sirius Computer, Inc., a provider of secure computing and networking solutions for defence, intelligence and critical national infrastructure, according to a press release issued Oct. 20, 2026.

The investment builds on an existing partnership between the two companies that combines Sirius's secure networking technology with Arqit's Sovereign Key Platform and NetworkSecure adaptors to deliver Crux, a software-based connectivity platform. Crux is designed to run on commercial devices alongside existing infrastructure, covering mobile devices, cloud and network systems, and autonomous platforms including uncrewed autonomous vehicles.

The companies said they have been selected as

Arqit announces strategic investment in Sirius to strengthen quantum-safe communications for defence and government

Tue, 20 Oct 2026 09:00:00 -0400

Investment builds on successful joint deployments to accelerate product development and expand into new defence markets

LONDON, Oct. 20, 2026 (GLOBE NEWSWIRE) -- Arqit Quantum Inc. (NASDAQ: ARQQ), a global leader in quantum-safe encryption helping safeguard sensitive information from current and future cyber threats, today announced a strategic investment in Sirius Computer, Inc., a technology provider of secure computing and networking solutions for defence, intelligence and critical national infrastructure. This will accelerate the development and delivery of quantum-safe communications for defence, government and national security users.

The investment builds on an existing partnership that combines Sirius’s secure networking

Arqit announces strategic investment in Sirius to strengthen quantum-safe communications for defence and government

Tue, 20 Oct 2026 09:00:00 -0400

Investment builds on successful joint deployments to accelerate product development and expand into new defence markets

The investment builds on an existing partnership that combines Sirius’s secure networking

Form 4 Arqit Quantum Inc. For: Oct 13 Filed by: Leaver Andrew

Thu, 15 Oct 2026 16:46:00 -0400

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Form 4 Arqit Quantum Inc. For: Oct 12 Filed by: Leaver Andrew

Tue, 13 Oct 2026 17:48:00 -0400

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Form 144 Arqit Quantum Inc. Filed by: Leaver Andrew

Tue, 13 Oct 2026 15:20:00 -0400

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Form 4 Arqit Quantum Inc. For: Oct 06 Filed by: Nilan Nicholas William

Thu, 08 Oct 2026 18:19:00 -0400

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Form 4 Arqit Quantum Inc. For: Oct 06 Filed by: Wilder Ben Simon

Thu, 08 Oct 2026 18:19:00 -0400

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Form 4 Arqit Quantum Inc. For: Oct 06 Filed by: Ritchie Garth

Thu, 08 Oct 2026 18:18:00 -0400

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Form 4 Arqit Quantum Inc. For: Oct 06 Filed by: Willcocks Patrick

Thu, 08 Oct 2026 18:17:00 -0400

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Form 4 Arqit Quantum Inc. For: Oct 06 Filed by: Feenan Paul

Thu, 08 Oct 2026 18:16:00 -0400

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Form 4 Arqit Quantum Inc. For: Oct 06 Filed by: Leaver Andrew

Thu, 08 Oct 2026 18:15:00 -0400

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Form 6-K Arqit Quantum Inc. For: Oct 08

Thu, 08 Oct 2026 16:01:00 -0400

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Arqit Quantum Inc. Announces Select Preliminary Financial Results for the Second Half and Full Fiscal Year 2026

Thu, 08 Oct 2026 08:30:00 -0400

LONDON, Oct. 08, 2026 (GLOBE NEWSWIRE) --

Arqit Quantum Inc. (Nasdaq: ARQQ) (“Arqit”), a global leader in quantum-safe encryption, announces select preliminary financial results for the second half and full fiscal year 2026.

Based on preliminary unaudited results, management expects revenue for the second half period ended 30 September 2026 of approximately $355,000 to $380,000. For the full fiscal year ended 30 September 2026, revenue is expected to be $975,000 to $1,000,000. Cash and cash equivalents were approximately $51 million as of 30 September 2026.

Revenue for the second half

Arqit Quantum Inc. Announces Select Preliminary Financial Results for the Second Half and Full Fiscal Year 2026

Thu, 08 Oct 2026 08:30:00 -0400

LONDON, Oct. 08, 2026 (GLOBE NEWSWIRE) --

Arqit Quantum Inc. (Nasdaq: ARQQ) (“Arqit”), a global leader in quantum-safe encryption, announces select preliminary financial results for the second half and full fiscal year 2026.

Revenue for the second half

Form 4 Arqit Quantum Inc. For: Oct 05 Filed by: Leaver Andrew

Wed, 07 Oct 2026 19:53:00 -0400

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Form 4 Arqit Quantum Inc. For: Oct 05 Filed by: Calabria Carlo

Wed, 07 Oct 2026 19:51:00 -0400

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Form 4 Arqit Quantum Inc. For: Oct 05 Filed by: Feenan Paul

Wed, 07 Oct 2026 19:49:00 -0400

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Form 4 Arqit Quantum Inc. For: Oct 05 Filed by: Lefebvre d'Ovidio Manfredi

Wed, 07 Oct 2026 19:48:00 -0400

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Form 4 Arqit Quantum Inc. For: Oct 05 Filed by: Nilan Nicholas William

Wed, 07 Oct 2026 19:46:00 -0400

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Form 4 Arqit Quantum Inc. For: Oct 05 Filed by: Ritchie Garth

Wed, 07 Oct 2026 19:44:00 -0400

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Form 4 Arqit Quantum Inc. For: Oct 05 Filed by: Wilder Ben Simon

Wed, 07 Oct 2026 19:42:00 -0400

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