Stocks · Technology · Services-Prepackaged Software

Arqit Quantum Inc.

ARQQ Clue Score45
United Kingdom Fiscal year ends September CIK 0001859690
17.23
-6.51%
Close, 9 Oct 2026 · USD

Price, with every insider trade on it

Closing prices, 12 months · point at a dot for who traded, or at the line for the close
17.23 on 9 Oct 2026
58 35 12 Oct 2025 Apr 2026 Oct 2026 13 Oct 2025 $58.27 14 Oct 2025 $58.16 15 Oct 2025 $53.47 16 Oct 2025 $39.56 17 Oct 2025 $41.49 20 Oct 2025 $39.56 21 Oct 2025 $38.55 22 Oct 2025 $35.08 23 Oct 2025 $39.03 24 Oct 2025 $42.71 27 Oct 2025 $47.04 28 Oct 2025 $42.99 29 Oct 2025 $45.37 30 Oct 2025 $42.39 31 Oct 2025 $43.63 3 Nov 2025 $40.73 4 Nov 2025 $36.01 5 Nov 2025 $34.25 6 Nov 2025 $31.97 7 Nov 2025 $33.84 10 Nov 2025 $32.19 11 Nov 2025 $31.41 12 Nov 2025 $30.32 13 Nov 2025 $27.53 14 Nov 2025 $27.48 17 Nov 2025 $25.96 18 Nov 2025 $26.46 19 Nov 2025 $27.16 20 Nov 2025 $24.27 21 Nov 2025 $24.37 24 Nov 2025 $26.29 25 Nov 2025 $25.74 26 Nov 2025 $27.57 28 Nov 2025 $28.51 1 Dec 2025 $26.42 2 Dec 2025 $27.58 3 Dec 2025 $29.54 4 Dec 2025 $31.50 5 Dec 2025 $30.43 8 Dec 2025 $29.63 9 Dec 2025 $29.63 10 Dec 2025 $28.97 11 Dec 2025 $29.70 12 Dec 2025 $28.35 15 Dec 2025 $24.35 16 Dec 2025 $24.73 17 Dec 2025 $22.46 18 Dec 2025 $23.93 19 Dec 2025 $25.49 22 Dec 2025 $26.49 23 Dec 2025 $25.32 24 Dec 2025 $25.29 26 Dec 2025 $22.81 29 Dec 2025 $21.72 30 Dec 2025 $21.94 31 Dec 2025 $21.88 2 Jan 2026 $24.54 5 Jan 2026 $27.88 6 Jan 2026 $27.63 7 Jan 2026 $27.00 8 Jan 2026 $27.28 9 Jan 2026 $26.87 12 Jan 2026 $26.60 13 Jan 2026 $26.18 14 Jan 2026 $26.61 15 Jan 2026 $26.97 16 Jan 2026 $26.60 20 Jan 2026 $25.15 21 Jan 2026 $24.96 22 Jan 2026 $25.35 23 Jan 2026 $24.20 26 Jan 2026 $23.27 27 Jan 2026 $23.31 28 Jan 2026 $23.09 29 Jan 2026 $22.27 30 Jan 2026 $20.32 2 Feb 2026 $20.17 3 Feb 2026 $19.79 4 Feb 2026 $18.32 5 Feb 2026 $16.12 6 Feb 2026 $18.59 9 Feb 2026 $18.50 10 Feb 2026 $17.56 11 Feb 2026 $17.32 12 Feb 2026 $16.78 13 Feb 2026 $17.00 17 Feb 2026 $16.53 18 Feb 2026 $16.26 19 Feb 2026 $16.81 20 Feb 2026 $15.85 23 Feb 2026 $15.31 24 Feb 2026 $16.39 25 Feb 2026 $16.84 26 Feb 2026 $17.46 27 Feb 2026 $16.46 2 Mar 2026 $16.86 3 Mar 2026 $15.93 4 Mar 2026 $16.66 5 Mar 2026 $15.92 6 Mar 2026 $15.41 9 Mar 2026 $15.48 10 Mar 2026 $15.09 11 Mar 2026 $14.75 12 Mar 2026 $14.05 13 Mar 2026 $13.63 16 Mar 2026 $14.00 17 Mar 2026 $14.16 18 Mar 2026 $13.63 19 Mar 2026 $13.87 20 Mar 2026 $13.60 23 Mar 2026 $14.38 24 Mar 2026 $13.57 25 Mar 2026 $13.62 26 Mar 2026 $12.77 27 Mar 2026 $11.78 30 Mar 2026 $11.90 31 Mar 2026 $13.25 1 Apr 2026 $13.59 2 Apr 2026 $13.97 6 Apr 2026 $13.32 7 Apr 2026 $12.55 8 Apr 2026 $12.86 9 Apr 2026 $12.44 10 Apr 2026 $12.53 13 Apr 2026 $13.24 14 Apr 2026 $13.97 15 Apr 2026 $16.23 16 Apr 2026 $15.77 17 Apr 2026 $16.03 20 Apr 2026 $16.15 21 Apr 2026 $14.85 22 Apr 2026 $15.76 23 Apr 2026 $14.45 24 Apr 2026 $14.53 27 Apr 2026 $14.58 28 Apr 2026 $14.09 29 Apr 2026 $13.22 30 Apr 2026 $14.36 1 May 2026 $14.52 4 May 2026 $14.42 5 May 2026 $14.65 6 May 2026 $15.68 7 May 2026 $15.43 8 May 2026 $14.96 11 May 2026 $15.00 12 May 2026 $14.40 13 May 2026 $13.83 14 May 2026 $13.87 15 May 2026 $13.34 18 May 2026 $12.74 19 May 2026 $12.17 20 May 2026 $13.09 21 May 2026 $16.45 22 May 2026 $17.49 26 May 2026 $16.59 27 May 2026 $16.10 28 May 2026 $16.91 29 May 2026 $16.51 1 Jun 2026 $16.96 2 Jun 2026 $16.27 3 Jun 2026 $14.64 4 Jun 2026 $14.22 5 Jun 2026 $12.14 8 Jun 2026 $12.82 9 Jun 2026 $12.49 10 Jun 2026 $13.09 11 Jun 2026 $13.69 12 Jun 2026 $13.60 15 Jun 2026 $17.92 16 Jun 2026 $19.94 17 Jun 2026 $22.60 18 Jun 2026 $24.38 22 Jun 2026 $21.42 23 Jun 2026 $29.04 24 Jun 2026 $28.64 25 Jun 2026 $27.32 26 Jun 2026 $24.26 29 Jun 2026 $27.31 30 Jun 2026 $29.72 1 Jul 2026 $28.85 2 Jul 2026 $23.52 6 Jul 2026 $22.13 7 Jul 2026 $19.84 8 Jul 2026 $20.05 9 Jul 2026 $20.47 10 Jul 2026 $19.08 13 Jul 2026 $18.02 14 Jul 2026 $18.73 15 Jul 2026 $18.25 16 Jul 2026 $16.53 17 Jul 2026 $17.42 20 Jul 2026 $17.21 21 Jul 2026 $17.20 22 Jul 2026 $18.08 23 Jul 2026 $18.35 24 Jul 2026 $16.65 27 Jul 2026 $18.18 28 Jul 2026 $17.55 29 Jul 2026 $15.49 30 Jul 2026 $17.71 31 Jul 2026 $17.13 3 Aug 2026 $18.45 4 Aug 2026 $21.98 5 Aug 2026 $20.97 6 Aug 2026 $21.47 7 Aug 2026 $22.90 10 Aug 2026 $22.61 11 Aug 2026 $24.39 12 Aug 2026 $23.72 13 Aug 2026 $23.75 14 Aug 2026 $24.36 17 Aug 2026 $24.35 18 Aug 2026 $21.98 19 Aug 2026 $21.53 20 Aug 2026 $20.94 21 Aug 2026 $21.14 24 Aug 2026 $20.13 25 Aug 2026 $20.42 26 Aug 2026 $20.36 27 Aug 2026 $21.46 28 Aug 2026 $20.04 31 Aug 2026 $19.88 1 Sep 2026 $18.90 2 Sep 2026 $20.54 3 Sep 2026 $20.62 4 Sep 2026 $21.37 8 Sep 2026 $22.59 9 Sep 2026 $21.64 10 Sep 2026 $20.58 11 Sep 2026 $20.05 14 Sep 2026 $16.29 15 Sep 2026 $18.27 16 Sep 2026 $19.01 17 Sep 2026 $19.52 18 Sep 2026 $20.13 21 Sep 2026 $23.53 22 Sep 2026 $23.04 23 Sep 2026 $22.54 24 Sep 2026 $23.12 25 Sep 2026 $24.60 28 Sep 2026 $24.64 29 Sep 2026 $24.12 30 Sep 2026 $24.06 1 Oct 2026 $23.95 2 Oct 2026 $24.62 5 Oct 2026 $23.68 6 Oct 2026 $23.43 7 Oct 2026 $22.55 8 Oct 2026 $18.43 9 Oct 2026 $17.23 Ritchie Garth Director Sold at will $6.78K 2 Apr 2026 · at $13.25 · 1.7% of stake Wilder Ben Simon Chief Operating Officer Sold at will $9.09K 2 Apr 2026 · at $13.31 · 18.5% of stake Feenan Paul Chief Revenue Officer Sold at will $21.74K 2 Apr 2026 · at $13.32 · 8.3% of stake Pointon Nicholas Chief Financial Officer Sold at will $22.76K 2 Apr 2026 · at $13.32 · 11.2% of stake Willcocks Patrick General Counsel Sold at will $23.85K 2 Apr 2026 · at $13.32 · 13.1% of stake Leaver Andrew Chief Executive Officer Sold at will $102.62K 6 Apr 2026 · at $13.51 · 14.2% of stake Pointon Nicholas Chief Financial Officer Sold at will $6.90K 20 Apr 2026 · at $15.87 · 2.6% of stake Bers Jennifer Chief Revenue Officer Sold at will $177.53K 22 Jun 2026 · at $21.42 · 55.3% of stake Willcocks Patrick General Counsel Sold at will $117.92K 30 Jun 2026 · at $29.48 · 33.6% of stake Lefebvre d'Ovidio Manfredi Director Sold at will $662.20K 30 Jun 2026 · at $30.07 · 0.5% of stake Lefebvre d'Ovidio Manfredi Director Sold at will $980.44K 1 Jul 2026 · at $30.24 · 0.7% of stake Ritchie Garth Director Sold at will $11.06K 2 Jul 2026 · at $25.20 · 0.4% of stake Wilder Ben Simon Chief Operating Officer Sold at will $19.38K 2 Jul 2026 · at $25.20 · 17.7% of stake Feenan Paul Chief Revenue Officer Sold at will $46.22K 2 Jul 2026 · at $25.20 · 8.7% of stake Willcocks Patrick General Counsel Sold at will $50.63K 2 Jul 2026 · at $25.20 · 17.5% of stake Leaver Andrew Chief Executive Officer Sold at will $249.33K 2 Jul 2026 · at $25.20 · 16.1% of stake Ritchie Garth Director Sold at will $2.96K 2 Oct 2026 · at $24.47 · 0.1% of stake Wilder Ben Simon Chief Operating Officer Sold at will $5.41K 2 Oct 2026 · at $24.47 · 4.9% of stake Nilan Nicholas William General Manager-US Sold at will $12.09K 2 Oct 2026 · at $24.47 · 51.5% of stake Feenan Paul Chief Revenue Officer Sold at will $12.38K 2 Oct 2026 · at $24.47 · 2.4% of stake Willcocks Patrick General Counsel Sold at will $13.63K 2 Oct 2026 · at $24.47 · 4.7% of stake Leaver Andrew Chief Executive Officer Sold at will $68.97K 2 Oct 2026 · at $24.47 · 4.6% of stake Ritchie Garth Director Sold at will $3.02K 5 Oct 2026 · at $23.78 · 0.1% of stake Wilder Ben Simon Chief Operating Officer Sold at will $5.54K 5 Oct 2026 · at $23.78 · 5.0% of stake Nilan Nicholas William General Manager-US Sold at will $12.42K 5 Oct 2026 · at $23.78 · 36.6% of stake Feenan Paul Chief Revenue Officer Sold at will $12.68K 5 Oct 2026 · at $23.78 · 2.4% of stake Willcocks Patrick General Counsel Sold at will $13.99K 5 Oct 2026 · at $23.78 · 4.8% of stake Leaver Andrew Chief Executive Officer Sold at will $60.29K 5 Oct 2026 · at $23.78 · 4.3% of stake Ritchie Garth Director Sold at will $2.85K 6 Oct 2026 · at $24.19 · 0.1% of stake Wilder Ben Simon Chief Operating Officer Sold at will $5.27K 6 Oct 2026 · at $24.19 · 4.9% of stake Nilan Nicholas William General Manager-US Sold at will $11.93K 6 Oct 2026 · at $24.19 · 26.5% of stake Feenan Paul Chief Revenue Officer Sold at will $12.19K 6 Oct 2026 · at $24.19 · 2.4% of stake Willcocks Patrick General Counsel Sold at will $13.43K 6 Oct 2026 · at $24.19 · 4.7% of stake Leaver Andrew Chief Executive Officer Sold at will $58.01K 6 Oct 2026 · at $24.19 · 4.5% of stake
0 buys34 sales at will0 planned sales

Key numbers

Fiscal year 2024, ended 30 Sep 2024, as filed
Revenue
$293.00K
Net income
$54.58M
Free cash flow
$34.13M
Operating margin
-8,426.6%
Net margin
-18,628.3%
Return on equity
-461.9%
Return on capital
-129.0%
Debt to equity
0.28
Revenue growth, 1 yr
-54.2%

Revenue and net income

Fiscal years, as filed with the SEC · point at a year for the detail
0K -516K FY20 Fiscal year 2020 Revenue $0.00 Net income $515.71K Margin n/a 48K -271M FY21 Fiscal year 2021 Revenue $48.00K Net income $271.34M Margin -565,300.9% 7M 65M FY22 Fiscal year 2022 Revenue $7.21M Net income $65.08M Margin 902.3% · growth +14,925.0% 640K -70M FY23 Fiscal year 2023 Revenue $640.00K Net income $70.39M Margin -10,998.9% · growth -91.1% 293K -55M FY24 Fiscal year 2024 Revenue $293.00K Net income $54.58M Margin -18,628.3% · growth -54.2%
RevenueNet incomeLoss

Latest insider transactions

From Form 4, most recent first
All of them →
DateInsiderTypeValueOf own stake
6 Oct 2026 Leaver Andrew
Chief Executive Officer
Sold at will $58.01K 4.5%
6 Oct 2026 Willcocks Patrick
General Counsel
Sold at will $13.43K 4.7%
6 Oct 2026 Feenan Paul
Chief Revenue Officer
Sold at will $12.19K 2.4%
6 Oct 2026 Nilan Nicholas William
General Manager-US
Sold at will $11.93K 26.5%
6 Oct 2026 Wilder Ben Simon
Chief Operating Officer
Sold at will $5.27K 4.9%
6 Oct 2026 Ritchie Garth
Director
Sold at will $2.85K 0.1%