3 British Growth Stocks To Own In September 2026

With the Bank of England still weighing further rate hikes, growth stories in the UK look very different to the broad market. Companies that are expanding fast, and where insiders hold meaningful stakes, can feel especially interesting when borrowing costs are in focus and investors are hunting for clearer conviction. This article looks at three fast growing UK stocks with high insider ownership from our screener and explains why they merit a closer look.

The stocks highlighted below are just a starting sample, with the full screen surfacing 58 more companies with similarly compelling growth and insider ownership stories that are not covered here. To identify and analyze the highest conviction ideas that fit this theme, head straight into the Fast Growing Stocks With High Insider Ownership screener.

Cambridge Cognition Holdings (AIM:COG)

Cambridge Cognition Holdings focuses on digital tools that measure brain health, with products like CANTAB and Cognition Kit used to provide objective, scalable cognitive assessments in clinical trials and healthcare. This is the kind of growth area the screener targets. Most revenue comes from Clinical Studies at about £8.4 million, with smaller contributions from Academic Research at about £0.8 million and Professional Healthcare at about £0.2 million. The company is still relatively small, with a market cap of roughly £14.2 million.

Cambridge Cognition may appeal to investors seeking exposure to digital health where analysts and management are aligned on growth potential. Forecasts of fast earnings and revenue growth sit alongside a small market cap, a low P/S versus peers and active fundraising that is intended to scale its cognitive assessment suite. On the other hand, there are real execution and funding risks, with recent share issues and a still loss-making profile raising questions about dilution and the path to sustainable profitability. For investors who can handle those trade offs, the mix of high growth expectations, a sharpened focus on brain health data and governance changes could be a compelling combination to research further.

Cambridge Cognition’s push to scale brain health tools, combined with its small £14.2 million market cap, often raises the question of whether expectations are running ahead of reality or still lagging the story. To see how analysts frame that growth profile and where the key assumptions sit, go through the analyst forecasts for Cambridge Cognition Holdings.

Metals Exploration (AIM:MTL)

Metals Exploration is a London based miner focused on gold and other precious metals, with its 100% owned Runruno gold project in the Philippines acting as the key growth engine that aligns it with the fast growth and high insider ownership theme. The company generates about $208 million in revenue from its Metals & Mining, Gold & Other Precious Metals segment, all from operations in the Philippines, and has a market cap of roughly £512 million.

Metals Exploration gives you direct exposure to a producing gold asset in Runruno that has underpinned 5 year earnings growth of about 19.6% a year and a net margin of 13.9%. New rights at the Batong Buhay copper gold project add a second leg of potential growth. Forecasts in the market point to very fast earnings and revenue expansion backed by high expected returns on equity and a board that is actively evolving to support that plan. The flip side is that a lot of optimism is already reflected in a higher P/E than the wider UK mining sector. The story is also highly concentrated in a few Philippine projects, so setbacks in permits, drilling or community relations could quickly change sentiment.

Metals Exploration’s growth story hinges on Runruno and fresh optionality at Batong Buhay, yet the market focus on a higher P/E suggests something important may be getting missed. Go straight to the analyst forecasts for Metals Exploration

Foresight Group Holdings (LSE:FSG)

Foresight Group Holdings is an asset manager that runs infrastructure, private equity, venture capital and listed funds, with a strong tilt toward managing renewable energy and related real assets that fits the screener’s focus on fast growing, high conviction stories. Most revenue comes from Real Assets at about £114.8 million, with Private Equity contributing around £50.1 million, showing that green infrastructure and other real asset mandates are the main economic engine. The company has a market cap of roughly £526.4 million.

Foresight Group Holdings may warrant a close look if you want exposure to renewable infrastructure managed by a firm that is already profitable and growing, yet still talks about holding only low single digit market shares in its core regions. The business is focusing on higher fee products, buybacks and new private credit offerings. These could all amplify fee income and earnings if asset growth continues. On the other hand, rising costs, heavy reliance on performance fees and sensitivity to UK and European policy around green assets mean that a slowdown in fundraising or regulatory setbacks could quickly affect performance. The key question is whether current execution can stay ahead of those risks.

Foresight Group Holdings is leaning into higher fee real assets and new private credit products, yet many investors may only see the headline fundraising story. Get the full picture through the analyst forecasts for Foresight Group Holdings

Seeking Fresh Alternatives Before Others Do

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This article by Simply Wall St is general in nature. We provide commentary based on historical data and analyst forecasts only using an unbiased methodology and our articles are not intended to be financial advice. It does not constitute a recommendation to buy or sell any stock, and does not take account of your objectives, or your financial situation. We aim to bring you long-term focused analysis driven by fundamental data. Note that our analysis may not factor in the latest price-sensitive company announcements or qualitative material. Simply Wall St has no position in any stocks mentioned.

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