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ALRT Share Price: A Complete Guide for UK Investors
Introduction
The ALRT share price represents Defense Holdings PLC, a London-listed defense technology company that has attracted significant attention from UK investors. Formerly known as Cassel Capital PLC, the company rebranded and changed its ticker to ALRT in May 2025, positioning itself as a pure-play defense platform operating at the intersection of software and security.
With its shares trading on the London Stock Exchange, Defense Holdings has experienced considerable volatility, with its share price ranging from under 1p to nearly 5p over the past year. This guide provides UK investors with everything they need to know about the ALRT share price, including current trading data, company background, recent performance, and key risks.
What Is Defense Holdings PLC (ALRT)?
Defence Holdings PLC is a publicly listed company headquartered in London, trading under the ticker symbol ALRT on the London Stock Exchange. The company is described as one of the UK’s first listed pure-play defense platforms, operating at the intersection of software and security.
Business Activities
The company focuses on developing sovereign defense capabilities for the digital age. Its activities include:
- Artificial intelligence-enabled sensing
- Secure communications
- Autonomous drone systems
- Next-generation cyber defense
These capabilities are designed to meet rapidly evolving security requirements across the United Kingdom and continental Europe.
Company History
Defense Holdings was founded on 3 September 2019 and is headquartered in London. In May 2025, the company changed its name from Cassel Capital PLC to Defence Holdings PLC and began trading under the ticker symbol ALRT.
Key Personnel
The company’s leadership team includes:
| Role | Name |
|---|---|
| Chief Executive Officer | Jasmine Skee |
| Non-Executive Chairman | Derek Lew |
| Senior Independent Director | Brian Stockbridge |
| Independent Non-Executive Director | Ian Yarwood-Lovett |
| Non-Executive Director | Jocelin Caldwell |
| Non-Executive Director | Anthony Stazicker |
Contact Details
- Address: 72 Charlotte Street, London, England, W1T 4QQ
- Phone: +44 020 3930 1298
- Website: www.defencetechnologies.com[reference:12 [reference: 12]
ALRT Share Price: Current Trading Data
The ALRT share price is quoted in pence (GBX) on the London Stock Exchange. Here is a summary of key trading data from multiple sources as of June 2026.
Recent Share Price Snapshot
| Metric | Value |
|---|---|
| Sell Price | 1.15p |
| Buy Price | 1.30p |
| Change | -0.41% |
Key Statistics
| Metric | Value |
|---|---|
| Market Cap | £36.61 million |
| Shares Outstanding | 2.47 billion |
| 52-Week Range | 0.30p – 4.90p |
| P/E Ratio | N/A |
| Dividend Yield | N/A |
Performance Metrics
| Period | Performance |
|---|---|
| 5 Day | -16.36% |
| 1 Month | -21.90% |
| 3 Months | -11.30% |
| Year to Date | -26.86% |
| 1 Year | +161.22% |
Additional Trading Data
- Open: 1.23p
- Day Range: 1.20 pm – 1.35 pm
- 52-Week Range: 0.30p – 4.90p
- Average Volume: 16.75 million shares
- Beta: 0.64
Recent News and Developments
New CEO Appointment
In a significant development for the company, Defense Holdings announced the appointment of a new Chief Executive Officer in late 2025. The news caused the ALRT share price to jump 17% to 1.98p in London trading.
The incoming CEO brings senior leadership experience across defense, national security, and government-aligned technology environments, alongside a track record in scaling operations and driving revenue growth. The appointee is expected to formally take up the role in early Q2 2026.
Chief Technology Officer Andy McCartney said the board was “delighted” to have reached agreement following a competitive search process.
Strategic Focus
The company’s five-year strategic plan, announced in June 2025, positions it to become a leading force in software-first defense solutions. The plan focuses on delivering sovereign digital capabilities across national security, resilience, and defense readiness.
Financial Results
Defense Holdings posted quarterly earnings results on 22 December 2025, reporting a loss of 17p per share (EPS) for the quarter. The company reported annual sales of £3.92 million.
ALRT Share Price Performance Analysis
Historical Volatility
The ALRT share price has experienced significant volatility since the company’s rebranding. The 52-week range of 0.30p to 4.90p represents a substantial spread. This volatility reflects the company’s transition from a shell company (Cassel Capital) to an operating defense technology business.
Year-to-Date Performance
As of mid-2026, ALRT shares have decreased by approximately 15% since the start of the year, when the stock was trading at 1.74p. The share price has traded in a range of 1.35p to 1.50p in recent sessions.
Recent Trading Activity
Trading volumes have been significant, with an average daily volume of approximately 16.75 million shares. Recent trading has seen volumes exceeding 20 million shares on some days.
Risks and Considerations for Investors
Key Risks
- Early-Stage Company: Defense Holdings is a relatively new company that is transitioning from capability development toward commercial delivery.
- Financial Performance: The company has reported losses, with an EPS of -17p in its last quarterly earnings.
- Share Price Volatility: The share price has ranged from 0.30p to 4.90p over the past year, indicating significant price swings.
- Sector Concentration: As a pure-play defense company, ALRT is exposed to risks associated with government defense spending and geopolitical factors.
- No Dividends: The company does not currently pay dividends.
Investment Considerations
- Speculative Investment: Given its early-stage nature and lack of profitability, ALRT is considered a speculative investment.
- Long-Term Horizon: The company’s five-year strategic plan suggests a long-term investment horizon may be appropriate.
- Conduct Your Own Research: As with any investment, you should conduct your own research and consider your personal financial circumstances.
How to Buy ALRT Shares
UK investors can buy and sell ALRT shares through various platforms:
Online Brokers
- AJ Bell: Offers trading in ALRT shares
- Barclays Smart Investor: Provides access to ALRT trading
- Hargreaves Lansdown: Offers LSE stock trading
- Interactive Investor: Provides access to UK shares
Trading Information
- Exchange: London Stock Exchange (Main Market)
- Sector: Aerospace and Defence
- ISIN: GB00BMWVF760
- SEDOL: BMWVF7
- NMS: 75,000 shares
Frequently Asked Questions
What is the ALRT share price?
The ALRT share price for Defense Holdings PLC is currently trading at approximately 1.15p (sell) to 1.30p (buy). Prices are subject to change and are delayed by at least 15 minutes on most platforms.
What does ALRT stand for?
ALRT is the ticker symbol for Defence Holdings PLC on the London Stock Exchange. The company was formerly known as Cassel Capital PLC before its rebranding in May 2025.
Is ALRT a good investment?
Whether ALRT is a good investment depends on your individual circumstances, risk tolerance, and investment goals. Defense Holdings is an early-stage defense technology company that has reported losses. You should conduct your own research and consider seeking independent financial advice before investing.
Does ALRT pay dividends?
No, Defense Holdings does not currently pay dividends.
What is the market cap of Defence Holdings?
The market capitalization of Defense Holdings is approximately £36.61 million.
Where is Defense Holdings headquartered?
Defense Holdings is headquartered in London, United Kingdom, at 72 Charlotte Street, London W1T 4QQ.
How can I buy ALRT shares?
UK investors can buy ALRT shares through online brokerage platforms that offer access to the London Stock Exchange, such as AJ Bell, Barclays Smart Investor, Hargreaves Lansdown, and Interactive Investor.
What is the 52-week range for ALRT?
The 52-week range for ALRT shares is 0.30p to 4.90p.
When was Defense Holdings founded?
Defense Holdings was founded on 3 September 2019.
What does defense holdings do?
Defense Holdings is a software-led defense company focused on developing AI-enabled sensing, secure communications, autonomous drone systems, and next-generation cyber defense capabilities.
Important Disclaimer
This article is for informational purposes only and does not constitute financial advice. The value of investments can fall as well as rise, and you may get back less than you invest. Past performance is not a guide to future performance.
If you are unsure about any investment decisions, you should seek independent financial advice from a suitably qualified and authorized advisor. Share prices are subject to change and may be delayed by at least 15 minutes on some platforms.
Conclusion
The ALRT share price represents Defense Holdings PLC, a London-listed defense technology company that has undergone significant transformation since its rebranding in May 2025. With a 52-week range of 0.30p to 4.90p and a market capitalization of approximately £36.61 million, the company offers a speculative investment opportunity in the UK defense sector.
Recent developments, including the appointment of a new CEO and the company’s five-year strategic plan, suggest that Defence Holdings is focused on transitioning from capability development toward commercial delivery. However, the company is still in its early stages and has reported losses.
As with any investment, you should conduct your own research, consider your personal financial circumstances, and seek independent financial advice if needed. The information in this guide is intended to help UK investors understand the ALRT share price and the company behind it.
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