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Arqit Quantum Inc. (ARQQ)

Arqit Quantum Inc. (ARQQ) Insider Trading

Directors, officers and holders of more than 10% of ARQQ report their trades in its stock on SEC Form 4, within two business days. Each row below is one Form 4 transaction line. The one-letter code says what kind of transaction it was: only P (purchase) and S (sale) are open-market or private trades; awards, option exercises, tax withholding and gifts carry other codes.

Recent Form 4 transactions

The 50 most recent of 387 transactions on file: 0 with code P, 12 with code S and 38 with other codes.

DateInsiderCodeShares
Oct 16, 2026Lefebvre d'Ovidio ManfrediM Exercise817
Oct 16, 2026Ritchie GarthM Exercise1,021
Oct 16, 2026Calabria CarloM Exercise919
Oct 16, 2026Lefebvre d'Ovidio ManfrediM Exercise817
Oct 16, 2026Calabria CarloM Exercise919
Oct 16, 2026Ritchie GarthM Exercise1,021
Oct 15, 2026Lefebvre d'Ovidio ManfrediA Award817
Oct 15, 2026Calabria CarloA Award919
Oct 15, 2026Ritchie GarthA Award1,021
Oct 13, 2026Leaver AndrewS Sale2,573
Oct 12, 2026Leaver AndrewM Exercise5,209
Oct 12, 2026Leaver AndrewM Exercise5,209
Oct 6, 2026Ritchie GarthS Sale118
Oct 6, 2026Willcocks PatrickS Sale555
Oct 6, 2026Wilder Ben SimonS Sale218
Oct 6, 2026Feenan PaulS Sale504
Oct 6, 2026Nilan Nicholas WilliamS Sale493
Oct 6, 2026Leaver AndrewS Sale2,398
Oct 5, 2026Ritchie GarthM Exercise83
Oct 5, 2026Ritchie GarthM Exercise16
Oct 5, 2026Ritchie GarthM Exercise83
Oct 5, 2026Wilder Ben SimonM Exercise277
Oct 5, 2026Lefebvre d'Ovidio ManfrediM Exercise1,111
Oct 5, 2026Ritchie GarthM Exercise16
Oct 5, 2026Ritchie GarthM Exercise83
Oct 5, 2026Ritchie GarthM Exercise83
Oct 5, 2026Ritchie GarthS Sale127
Oct 5, 2026Nilan Nicholas WilliamS Sale522
Oct 5, 2026Nilan Nicholas WilliamM Exercise959
Oct 5, 2026Ritchie GarthM Exercise66
Oct 5, 2026Wilder Ben SimonM Exercise166
Oct 5, 2026Nilan Nicholas WilliamM Exercise959
Oct 5, 2026Leaver AndrewJ Other2,818
Oct 5, 2026Wilder Ben SimonM Exercise277
Oct 5, 2026Leaver AndrewJ Other5,209
Oct 5, 2026Wilder Ben SimonM Exercise166
Oct 5, 2026Willcocks PatrickM Exercise305
Oct 5, 2026Leaver AndrewM Exercise5,208
Oct 5, 2026Calabria CarloM Exercise66
Oct 5, 2026Willcocks PatrickM Exercise149
Oct 5, 2026Willcocks PatrickS Sale588
Oct 5, 2026Leaver AndrewS Sale2,535
Oct 5, 2026Calabria CarloM Exercise16
Oct 5, 2026Calabria CarloM Exercise83
Oct 5, 2026Feenan PaulM Exercise322
Oct 5, 2026Feenan PaulM Exercise157
Oct 5, 2026Feenan PaulS Sale533
Oct 5, 2026Ritchie GarthM Exercise66
Oct 5, 2026Calabria CarloM Exercise83
Oct 5, 2026Lefebvre d'Ovidio ManfrediM Exercise83

The full Form 4 history is on the ARQQ company page (Insider Trades card, View all).

Questions about this data

Which insider transactions are open-market trades?

Code P (open market or private purchase) and code S (open market or private sale). Code F is shares withheld to pay tax on vesting stock, A is an award from the company, M and X are option exercises and G is a gift. None of those is the insider choosing to buy or sell in the market.

How quickly are insider trades reported?

A Form 4 is due before the end of the second business day after the trade. The date shown is the transaction date from the form.

Who has to file Form 4?

Officers, directors and beneficial owners of more than 10% of a class of the company’s registered equity, under Section 16 of the Securities Exchange Act.

Look up any code in the Form 4 transaction code reference, or read Form 4 codes explained.