Transaction · 0001859690-26-000174

Nilan Nicholas William

Nilan Nicholas William, GMU, reported an open-market or private sale at Arqit Quantum Inc. involving 494.000000 shares for an estimated $12090.30. Reported holdings after the transaction were 466.000000 shares. A 10b5-1 reference was not detected in the stored filing text.

Open-market sellSEC transaction code SGMU
ARQQArqit Quantum Inc.
Filing timeOct 06
Trade dateOct 02, 2026
Filing · SECView on SEC
InsiderProfile
% of reported position traded51.46%Shares sold ÷ (holdings after + shares sold). Estimated position before: 960 shares.

Row-level estimate for this security and ownership context, not the insider’s complete portfolio. Joint ownership, other transactions in the filing, amendments and footnotes can affect interpretation.

Price performance since filing

Close on the filing date, the pre-filing context, and the forward return at standard windows
Price at filing
$23.43
Pre-filing
1mo ago1w ago +5.0%1d ago +2.2%
Returns since
7d30d90d180d1y

ARQQ price since this filing

30 days of pre-filing context and vertical markers at the filing date plus 7d / 30d / 90d / 180d / 1y afterwards
ARQQ since 2026-10-06Filed yesterday · 1 day of post-filing data
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Filing datePost-filing windows (7d, 30d, 90d, 180d, 1y)30 days of pre-filing context

Transaction facts

Stored Form 4 columns with their raw values

Non-derivative
Type
Sell
Code S
Identifier
0001859690-26-000174
Ordinary Shares
Transaction date
Oct 02, 2026
Filed Oct 06, 2026, 11:43 PM · 4d delay
Shares
494 sh
$24.47 per share
Estimated value
-$12.0k
Computed from shares × price
Holdings after
466 sh
Direct

Filing signal explanations

Badges describe filing facts only — not predictions.

Cluster 14dRepeat 30dPattern $100kLarge $1.00M
Direct Ownership Large Holdings Reduction
+6score
Filing-only score

+6

Compact filing score computed from stored Form 4 facts. Version v1.

Positive filing signal

This filing has a modest positive filing-only score. Treat it as a useful flag for review, not as a buy signal.

Reported relationships & other filings

Form 4 relationship flags and nearby filing context

Reported roles

General Manager-US

Officer YesDirector No10% NoOther No
Footnotes & amended
  1. F1

    The Restricted Share Units ("RSUs") convert into ARQQ ordinary shares on a one-for-one basis.

  2. F2

    Each restricted stock unit ("RSU") represents a contingent right to receive one ARQQ ordinary share. 2,879 RSUs vest on October 1, 2026 and the remaining RSUs vest quarterly in equal installments on J…

Original filing · 0001859690-26-000174
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Same reporting owner
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