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144 ·Filed Oct 6, 2026

ARQQ

Arqit Quantum Inc.
NEUTRAL
Impact 2/10
Horizonimmediate Processed20d 23h ago SEC0001959173-26-007290
Form 144 — notice of proposed sale of securities
Actionable Insight • Neutral

This is a routine sell-to-cover transaction for tax purposes, not a discretionary insider sale. No material signal for the stock. Monitor for any subsequent Form 4 filings that might reveal larger discretionary sales.

DirectionNeutral
Confidencehigh
Horizonimmediate
Latest settled — T+5d ⚠ clustered
ARQQ ▼ -28.13% at T+5d
NEUTRAL call -28.13% · α vs SPY -27.99% · entry $23.43 → $16.84
Next anchor: T+20d in 7d
Latest observation: T+13 -17.51% FF3 residual α
Entry = T+0 close
Oct 6, 2026
via day close
T+1d
-3.76%
call -3.76% · α -3.52%
$22.55
settled 20d ago
T+5d
-28.13%
call -28.13% · α -27.99%
$16.84
settled 14d ago
T+20d
Pending
in 7d
T+60d
Pending
in 2mo

Price Chart

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Executive Summary

Andrew Leaver, a director and officer of Arqit Quantum Inc., filed a Form 144 on October 6, 2026, indicating intent to sell 2,535 shares of common stock valued at approximately $60,294. The sale is described as necessary to cover a tax obligation from the settlement of a vested equity award. This is a small, routine insider sale tied to tax withholding, not a discretionary portfolio liquidation.

Key Facts

  • Filer: Andrew Leaver (Director and Officer)
  • Shares proposed for sale: 2,535
  • Approximate value: $60,294
  • Reason: Tax obligation from vested equity award settlement
  • Filing date: October 6, 2026
  • Broker: Fidelity Brokerage Services LLC

Financial Impact

~$60,294 sale to cover tax withholding on equity vesting — negligible relative to market cap

dilution

Risk Factors

  • Insider may still sell additional shares beyond this tax-motivated tranche
  • Form 144 is an intent notice; actual sale may not occur

Investment Themes

Documents Analyzed

This report is based on 3 SEC documents filed with EDGAR.

DocumentAccession Number
144 Filing (Primary)0001959173-26-007290
Document: 0001959173-26-007290-index.html0001959173-26-007290
Document: 0001959173-26-007290.txt0001959173-26-007290
24 reports for ARQQ
Performance horizon
100% Hit rate @ T+5 7 of 7 directional calls Went positive at some point 7 of 7 best @ T+60▲ +51.44%Apr 10, 2026
Filters
Rows
Reports for ARQQ — sortable, filterable
TypeNow
Oct 13, 2026
13d ago
144
NEUTRAL ★ 3/10
$16.84 $15.31▼ −9.09%▼ −7.93%$18.25 (+8.37%)
Oct 8, 2026
18d ago
6-K
MIXED ★ 5/10
$17.23 $14.02▼ −18.63%▼ −16.66%$18.25 (+5.92%)
Oct 6, 2026
20d ago
144
NEUTRAL ★ 2/10
$23.43 $16.84▼ −28.13%▼ −27.99%$18.25 (−22.11%)
Oct 6, 2026
20d ago
144
NEUTRAL ★ 2/10
$23.43 $16.84▼ −28.13%▼ −27.99%$18.25 (−22.11%)
Oct 6, 2026
20d ago
144
NEUTRAL ★ 2/10
$23.43 $16.84▼ −28.13%▼ −27.99%$18.25 (−22.11%)
Oct 6, 2026
20d ago
144
NEUTRAL ★ 2/10
$23.43 $16.84▼ −28.13%▼ −27.99%$18.25 (−22.11%)
Oct 6, 2026
20d ago
144
NEUTRAL ★ 2/10
$23.43 $16.84▼ −28.13%▼ −27.99%$18.25 (−22.11%)
Oct 6, 2026
20d ago
144
NEUTRAL ★ 2/10
$23.43 $16.84▼ −28.13%▼ −27.99%$18.25 (−22.11%)
Oct 5, 2026
21d ago
144
NEUTRAL ★ 1/10
$23.68 $16.66▼ −29.67%▼ −30.09%$18.25 (−22.93%)
Sep 9, 2026
6w ago
6-K
NEUTRAL ★ 2/10
$21.64 $18.90▼ −12.68%▼ −12.35%$18.25 (−15.67%)
Showing 10 of 24

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Report published Oct 6, 2026