Fast growing stocks with high insider ownership sit at the crossroads of two powerful forces: companies that are expanding quickly and leaders who have substantial skin in the game. With markets focused on themes like AI related manufacturing gains in China, mixed but resilient signals from the U.S., and shifting inflation and rate expectations across Europe and emerging markets, many investors are looking for growth that is firmly aligned with management incentives. This Fast Growing Stocks With High Insider Ownership screener filters for that combination, and this article highlights 3 stocks from the list that stand out on those criteria.

Butterfly Network (BFLY)

Overview: Butterfly Network is a medical technology company that makes handheld ultrasound devices, such as the Butterfly iQ+ and iQ3, that plug into a smartphone, tablet, or hospital computer so clinicians can perform whole body imaging at the bedside. The devices are supported by AI tools and software like Compass AI and ScanLab to support workflow, education, and decision making. The company also serves specialist areas, including bladder scanning and veterinary care, and sells its products through a mix of direct sales, distributors, and e commerce.

Operations: Butterfly Network generates about US$102.9 million in revenue from its AI enhanced personal ultrasound solution, with around US$81.8 million from the United States and US$21.2 million from international markets.

Market Cap: US$2.1b

Butterfly Network operates at the intersection of handheld ultrasound hardware, AI powered software, and licensing of its ultrasound on chip technology, which has attracted partners such as Midjourney and Aleph Neuro for full body and brain imaging projects. Investors are watching the company because revenue is growing and losses have been shrinking. Management is targeting profitability within the next few years and points to a balance sheet with no debt and a multi year cash runway. On the other hand, the stock carries a very high P/S multiple, earnings are still negative with a weakened return on equity, recent insider selling raises questions, and price volatility is elevated. The key question for investors is whether the potential upside from AI tools, new clinical indications, and third party licensing can justify these risks.

Butterfly Network’s push toward profitability with no debt and a multi year cash runway looks promising, but the high P/S and insider moves leave open questions that the 1 key reward and 2 important warning signs (1 is major!) abruptly raises.

Upstart Holdings (UPST)

Overview: Upstart Holdings operates an AI driven lending platform that connects banks, credit unions, and institutional investors with consumers seeking personal, auto, small dollar, and home equity credit. By using machine learning models instead of traditional credit scores alone, Upstart aims to approve more borrowers at lower loss rates while offering its partners a white label, cloud based lending solution.

Operations: Upstart generates about US$1.0b in revenue primarily from Personal Lending, with total revenue of around US$1.2b sourced entirely from borrowers in the United States.

Market Cap: US$3.2b

Upstart Holdings catches attention because it sits at the crossroads of AI underwriting and consumer credit, with its Model 19 risk engine and automation efforts aimed at improving approval rates and managing defaults for banks and credit unions. Earnings and revenue growth are widely expected by analysts, but this is paired with a rich valuation, reliance on external funding instead of deposits, and sensitivity to credit cycles and model accuracy. Recent news on new funding agreements, securitizations, and credit union partnerships suggests lenders are still engaging with the platform. Management changes and a prospective bank charter could reshape its risk profile. For investors focused on fast growth with high insider ownership, the key consideration is how these opportunities compare with the credit and funding risks embedded in Upstart’s model.

Upstart’s AI underwriting story is accelerating, but the real tension is how that promise stacks up against credit and funding risks. Before you decide where you stand, read the 3 key rewards and 1 important major warning sign

Circle Internet Group (CRCL)

Overview: Circle Internet Group runs the USDC stablecoin platform, giving businesses and developers access to digital dollars and other tokenized assets that are backed by reserves and move on public blockchains. Its Arc blockchain, payments tools, and custody and liquidity services are designed to let money and assets settle onchain while still tying into the traditional financial system.

Operations: Circle Internet Group generates about US$2.9b in revenue from data processing services, all currently sourced from customers in the United States.

Market Cap: US$17.1b

Circle Internet Group may be relevant for investors who follow stablecoins and onchain finance, because it sits at the center of USDC adoption, euro stablecoins, and products such as wrapped bitcoin, all supported by institutions using its payments and settlement rails. The business is currently unprofitable. The stock appears to be priced for high expectations, trading above some cash flow estimates, while insider selling, regulatory scrutiny of stablecoins, and high share price volatility all call for careful consideration.

Circle’s USDC engine is reshaping onchain money, and the real story sits where high expectations, volatility, and regulation meet. Before you decide, read the 1 key reward and 2 important warning signs

The three stocks in this article are just a starting point, and the full Fast Growing Stocks With High Insider Ownership screener on Simply Wall St has uncovered 1,246 more companies with equally compelling growth aligned with insider conviction, all captured in the Fast Growing Stocks With High Insider Ownership screener. Use Simply Wall St to identify, filter, and analyze the specific catalysts and narratives that matter to you so you can focus on the ideas with the strongest conviction for your watchlist.

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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.