Arqit Quantum Inc. is a US-listed company in the systems software industry. Its financial year ends in September.
Loading chart…
Third-party market data · may be delayed
Under review: data-quality checks not passed.
Under review: data-quality checks not passed. We'll show the comparison once resolved.
Arqit Quantum Inc. valuation: adjust assumptions and compare models →
What company insiders, investment funds and members of Congress have been doing with the stock, from their own filings.
Arqit Quantum has little or no product revenue yet; it used $30m of cash in the twelve months. The diluted share count is up 172.5% on a year earlier, which dilutes existing holders. It passes 2 of our 3 financial-health checks.
Our model value for Arqit Quantum is under review, so past values are not shown until it is resolved.
Written from the company's filings and our models when each quarter's report arrives. Figures in older notes are as published at the time. Not investment advice.
Arqit Quantum Inc.'s trailing-twelve-month revenue grew 80.9% year on year, with a free-cash-flow margin of -5582.3%.
Current signal Revenue growth accelerating: TTM revenue growth rose to 80.9% (+135.1pp vs the prior quarter).
Assembled from SEC-filed figures — the full workings are on this page and in our methodology. Observations, not recommendations.
Loading chart…
Third-party market data · may be delayed
Company announcements, filed results and changes that matter to shareholders.
No recent updates are available for ARQQ from the sources we follow. See filings →
Not assessed: fewer than five years of comparable figures in the filings. AI disruption exposure for this industry: Medium.
Next results: December 9, 2026, before the open.
No analyst estimates are published for Arqit Quantum Inc.: too few analysts cover it.
Source: SEC EDGAR filings. Retrieved November 2, 2026.
| Period | Revenue (TTM) |
|---|---|
| FY21 Q4 | $48K |
| FY22 Q4 | $7.2M |
| FY23 Q4 | $640K |
| FY24 Q4 | $293K |
| FY25 Q4 | $530K |
Source: SEC EDGAR filings. Retrieved November 2, 2026.
| Period | Revenue growth, TTM YoY |
|---|---|
| FY22 Q4 | 14925.0% |
| FY23 Q4 | -91.1% |
| FY24 Q4 | -54.2% |
| FY25 Q4 | 80.9% |
Source: SEC EDGAR filings. Retrieved November 2, 2026.
| Period | Operating margin (TTM) |
|---|---|
| FY21 Q4 | -359502.1% |
| FY22 Q4 | -884.2% |
| FY23 Q4 | -9162.8% |
| FY24 Q4 | -9190.1% |
| FY25 Q4 | -7271.5% |
Source: SEC EDGAR filings. Retrieved November 2, 2026.
| Period | FCF margin (TTM) |
|---|---|
| FY21 Q4 | -50537.5% |
| FY22 Q4 | -403.4% |
| FY23 Q4 | -5240.2% |
| FY24 Q4 | -11649.1% |
| FY25 Q4 | -5582.3% |
| Fiscal year | 2021 Sept 2021 | 2022 Sept 2022 | 2023 Sept 2023 | 2024 Sept 2024 | 2025 Sept 2025 |
|---|---|---|---|---|---|
| Income | |||||
| Revenue | 0 | 7 | 1 | 0 | 1 |
| EBITDA | −173 | −64 | −59 | −27 | −38 |
| Operating income | −173 | −64 | −59 | −27 | −39 |
| Net income | −271 | 65 | −75 | −57 | −35 |
| Diluted EPS | −$99.42 | $13.34 | −$14.17 | −$11.23 | −$2.56 |
| Growth (year on year) | |||||
| Revenue | — | +>999% | −91.1% | −54.2% | +80.9% |
| Net income | — | — | −214.5% | — | — |
| Diluted EPS | — | — | −206.2% | — | — |
| Margins | |||||
| EBITDA margin | <−999% | −884.2% | <−999% | <−999% | <−999% |
| Operating margin | <−999% | −884.2% | <−999% | <−999% | <−999% |
| Net margin | <−999% | 902.3% | <−999% | <−999% | <−999% |
| Free-cash-flow margin | <−999% | −403.4% | <−999% | <−999% | <−999% |
| Cash flow | |||||
| Cash from operations | −24 | −27 | −33 | −34 | −30 |
| Capital spending | 0 | 2 | 1 | 0 | 0 |
| Free cash flow | −24 | −29 | −34 | −34 | −30 |
| Stock-based pay | 0 | 22 | 18 | −1 | 6 |
| Free cash flow after stock pay | −24 | −51 | −52 | −33 | −35 |
| Balance sheet | |||||
| Cash | 87 | 49 | 44 | 19 | 37 |
| Total debt | 0 | 0 | 0 | 0 | 0 |
| Net debt (negative = net cash) | −87 | −49 | −44 | −19 | −37 |
| Diluted shares | 3m | 5m | 5m | 5m | 14m |
| Last 12 months unless stated | ARQQ | ATGL | OWLS | QBTS | RGTI | HUBC | Median |
|---|---|---|---|---|---|---|---|
| Revenue, last 12 months | $530000 | $948865 | $8m | $12m | $13m | $32m | $1.1bn |
| Revenue growth, last 12 months | 80.9% | −40.0% | 3.9% | −44.2% | 68.5% | 7.1% | 17.4% |
| Revenue growth, 3-year average | — | — | — | 19.0% | −2.5% | — | 16.1% |
| Revenue growth, latest quarter | — | — | — | −0.6% | 185.3% | — | 19.6% |
| Gross margin | — | 49.2% | 2.6% | 64.2% | 34.6% | 16.7% | 69.6% |
| Operating margin | <−999% | −770.5% | −409.8% | <−999% | −727.6% | −222.0% | 3.6% |
| Operating margin, 3-year average | — | — | — | −810.3% | −744.1% | — | 4.0% |
| Net margin | <−999% | −952.0% | −405.2% | <−999% | <−999% | −378.3% | 1.5% |
| Cash from operations / revenue | <−999% | −177.9% | −146.7% | −892.4% | −454.7% | −99.2% | 16.6% |
| Free-cash-flow margin | <−999% | −188.5% | −153.5% | −963.8% | −655.9% | −99.3% | 14.6% |
| Free-cash-flow margin, 3-year average | — | — | — | −598.1% | −638.3% | — | 18.8% |
| Stock pay / revenue | >999% | 585.4% | 217.7% | 250.5% | 170.7% | 10.1% | 8.5% |
| Change in share count | 172.5% | 10.0% | — | 40.1% | 28.9% | 537.5% | 2.9% |
| Manager | Value | Shares | Share of 13F value | Shares QoQ |
|---|---|---|---|---|
| Penserra Capital Management LLC | $151M | 5.1M | 41.9% | ▲ 249.9% |
| Defiance Etfs, LLC | $147M | 5.1M | 40.8% | ▲ 251.1% |
| UBS Group AG | $15.5M | 523K | 4.3% | ▲ 512.0% |
| Legal & General Group PLC | $8.1M | 276K | 2.3% | ▲ 424.3% |
| National Bank Of Canada | $6.3M | 212K | 1.7% | ▲ 19296.2% |
| Mirae Asset Global Etfs Holdings Ltd. | $5.6M | 188K | 1.5% | ▼ 42.0% |
| Kessler Investment Group, LLC | $4.6M | 153K | 1.3% | ▼ 2.8% |
| Bank Of New York Mellon Corp | $2.9M | 99K | 0.8% | ▲ 732.3% |
| Raymond James Financial Inc | $2.8M | 95K | 0.8% | ▲ 49.2% |
| Millennium Management LLC | $2.3M | 79K | 0.6% | ▲ 45.7% |
| Bank Of America Corp | $1.6M | 54K | 0.4% | ▲ 182.4% |
| Van Eck Associates Corp | $1.5M | 49K | 0.4% | ▲ 145.6% |
From Form 13F filings with the SEC ( quarterly data sets), as reported by each manager for June 30, 2026 and filed up to 45 days later. 13F reports cover long US-listed positions of managers above $100M only, so this is not Arqit Quantum Inc.'s complete shareholder register. Values are as reported by the filers ; 1 inconsistently scaled filing rows were excluded.
| Insider | Date | Trade | Shares | Price | Value |
|---|---|---|---|---|---|
| Leaver Andrew Chief Executive Officer | October 13, 2026 | Sell | 2,573 | $16.40 | $42,207 |
| Leaver Andrew Chief Executive Officer | October 6, 2026 | Sell | 2,398 | $24.19 | $58,011 |
| Feenan Paul Chief Revenue Officer | October 6, 2026 | Sell | 504 | $24.19 | $12,193 |
| Willcocks Patrick General Counsel | October 6, 2026 | Sell | 555 | $24.19 | $13,426 |
| Ritchie Garth Director | October 6, 2026 | Sell | 118 | $24.19 | $2,855 |
| Nilan Nicholas William General Manager-US | October 6, 2026 | Sell | 493 | $24.19 | $11,926 |
| Wilder Ben Simon Chief Operating Officer | October 6, 2026 | Sell | 218 | $24.19 | $5,274 |
| Willcocks Patrick General Counsel | October 5, 2026 | Sell | 588 | $23.78 | $13,985 |
| Wilder Ben Simon Chief Operating Officer | October 5, 2026 | Sell | 233 | $23.78 | $5,542 |
| Ritchie Garth Director | October 5, 2026 | Sell | 127 | $23.78 | $3,021 |
| Nilan Nicholas William General Manager-US | October 5, 2026 | Sell | 522 | $23.78 | $12,416 |
| Feenan Paul Chief Revenue Officer | October 5, 2026 | Sell | 533 | $23.78 | $12,677 |
From insiders' Form 4 filings with the SEC. Excludes awards, option exercises and shares withheld for tax. "Pre-set plan" means the filing marks the trade as made under a Rule 10b5-1 plan. See every insider trade since five years ago, on a price chart.
| Data | Last updated | Source |
|---|---|---|
| Share price | Exchange closing prices | |
| News and updates | Company releases and SEC 8-K filings | |
| Analyst estimates | Aggregated analyst estimates | |
| Valuation and scores | Our models, from the filed figures |
New research on the companies we cover arrives in the weekly email. Free, one email a week.
