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CIK 0001859690 · Accelerated filer<br>Emerging growth company

Arqit Quantum Inc.

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Ticker
ARQQ
Exchange
Nasdaq
Industry
Services-Prepackaged Software
FY end
Sep 30
Incorporated
Cayman Islands
Entity type
other
Phone
44 203 91 70155
Business address
3 ORCHARD PLACE, LONDON, United Kingdom, SW1H 0BF
Open-market buys, last 90 days
$0
in 0 filings
Open-market sales, last 90 days
$369,273
in 19 filings

Net −$369,273. Shares bought or sold at a price by officers, directors and 10% owners (Form 4 codes P and S). Grants, option exercises and tax withholding aren't counted.

Date Insider Transaction Shares Price Value Owned after
2026-05-07 Lefebvre d'Ovidio Manfredi Director Sale · Business Combination Warrants (right to buy) −11 $2.20 $24 24,929.96
2026-05-06 Lefebvre d'Ovidio Manfredi Director Option exercise +1,509 43,135
2026-05-06 Lefebvre d'Ovidio Manfredi Director Grant or award · Restricted Stock Units +1,509 1,509
2026-05-06 Lefebvre d'Ovidio Manfredi Director Option exercise · Restricted Stock Units −1,509 0
2026-05-06 Calabria Carlo Director Option exercise +1,698 110,922
2026-05-06 Calabria Carlo Director Grant or award · Restricted Stock Units +1,698 1,698
2026-05-06 Calabria Carlo Director Option exercise · Restricted Stock Units −1,698 0
2026-05-06 Lefebvre d'Ovidio Manfredi Director Sale · Business Combination Warrants (right to buy) −404 $2.20 $889 24,941.28
2026-05-05 Lefebvre d'Ovidio Manfredi Director Sale · Business Combination Warrants (right to buy) −68 $2.30 $156 25,345.2
2026-05-04 Lefebvre d'Ovidio Manfredi Director Sale · Business Combination Warrants (right to buy) −328 $2.10 $689 25,413.04
2026-05-01 Lefebvre d'Ovidio Manfredi Director Sale · Business Combination Warrants (right to buy) −402 $2.10 $844 25,741.32
2026-04-30 Lefebvre d'Ovidio Manfredi Director Sale · Business Combination Warrants (right to buy) −91 $2.30 $209 26,142.92
2026-04-29 Lefebvre d'Ovidio Manfredi Director Sale · Business Combination Warrants (right to buy) −967 $2.30 $2K 26,234.12
2026-04-28 Lefebvre d'Ovidio Manfredi Director Sale · Business Combination Warrants (right to buy) −421 $2.50 $1K 27,200.84
2026-04-27 Lefebvre d'Ovidio Manfredi Director Sale · Business Combination Warrants (right to buy) −41 $2.90 $119 27,622.16
2026-04-24 Lefebvre d'Ovidio Manfredi Director Sale · Business Combination Warrants (right to buy) −205 $2.90 $595 27,663.28
2026-04-23 Lefebvre d'Ovidio Manfredi Director Sale · Business Combination Warrants (right to buy) −182 $3.30 $601 27,868.64
2026-04-22 Lefebvre d'Ovidio Manfredi Director Sale · Business Combination Warrants (right to buy) −381 $3.10 $1K 28,050.8
2026-04-21 Lefebvre d'Ovidio Manfredi Director Sale · Business Combination Warrants (right to buy) −103 $2.80 $288 28,432.2
2026-04-20 Bers Jennifer Chief Revenue Officer Grant or award · Restricted Stock Units +15,000 24,821

Page 16 of 20 · 389 trades