Schedule 13G filing

Notion Capital III LP disclosed a 10% stake in Arqit Quantum Inc. (ARQQ)

Schedule 13G · Filed Sep 10, 2026

Notion Capital III LP reported owning 10% of Arqit Quantum Inc. (ARQQ) (1,812,206 shares) in a Schedule 13G filed Sep 10, 2026.

A 13G is a passive stake: the holder does not plan to push for changes.

Stake

Arqit Quantum Inc.

Stake

10% stake

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From a public Schedule 13G, linked above. Not investment advice, and not a recommendation to buy or sell.