The United States market has shown robust performance, climbing 1.6% in the last 7 days and up 28% over the past year, with earnings forecasted to grow by 17% annually. In this thriving environment, growth companies with high insider ownership can be particularly appealing as they often signal strong confidence from those closest to the business and can offer significant potential for earnings growth.

Top 10 Growth Companies With High Insider Ownership In The United States

Name	Insider Ownership	Earnings Growth
Zscaler (ZS)	35%	54.5%
Uxin (UXIN)	34.4%	74.1%
Upstart Holdings (UPST)	14.1%	58.1%
SharonAI Holdings (SHAZ)	32.5%	105.4%
Karman Holdings (KRMN)	15.6%	52.6%
Hesai Group (HSAI)	17.5%	27.4%
FirstSun Capital Bancorp (FSUN)	21%	54.2%
Corcept Therapeutics (CORT)	11.7%	48.9%
Astera Labs (ALAB)	10.3%	31.5%
AppLovin (APP)	27.4%	21.7%

Underneath we present a selection of stocks filtered out by our screen.

REalloys (ALOY)

Simply Wall St Growth Rating: ★★★★★☆

Overview: REalloys Inc. is a North American company specializing in rare earth metals and permanent magnets, with a market cap of $548.05 million.

Operations: The company's revenue is primarily derived from its Metals & Mining - Miscellaneous segment, totaling $0.80 million.

Insider Ownership: 31.8%

Earnings Growth Forecast: 69.1% p.a.

REalloys, with high insider ownership, is poised for significant growth, driven by strategic alliances and innovative technologies. The company recently announced a partnership with Ramaco Resources to secure rare earth materials essential for U.S. strategic sectors. Despite reporting a net loss of US$75.56 million in 2025 and delayed SEC filings, REalloys' revenue is forecasted to grow rapidly at 66.8% annually, outpacing the market average significantly, although share price volatility remains a concern.

Streamex (STEX)

Simply Wall St Growth Rating: ★★★★★☆

Overview: Streamex Corp. is a medical device technology company that offers advanced digital signal processing solutions for electrophysiology in the United States, with a market cap of $273.53 million.

Operations: Streamex Corp. generates its revenue through the provision of advanced digital signal processing solutions specifically designed for electrophysiology applications in the U.S.

Insider Ownership: 12.1%

Earnings Growth Forecast: 114.5% p.a.

Streamex, with substantial insider ownership, is positioned for growth through its innovative tokenized securities platform. The recent launch of a 24/7 secondary liquidity infrastructure in partnership with Orca enhances the trading of its gold-backed GLDY tokens on the Solana blockchain. Despite a significant net loss of US$46.69 million in Q1 2026 and share price volatility, Streamex's revenue and earnings are forecasted to grow rapidly, surpassing market averages significantly.

Tutor Perini (TPC)

Simply Wall St Growth Rating: ★★★★☆☆

Overview: Tutor Perini Corporation is a construction company offering general contracting, construction management, and design-build services to both private customers and public agencies in the United States and internationally, with a market cap of $3.76 billion.

Operations: The company's revenue segments include $3.16 billion from Civil (Including Management Services), $1.97 billion from Building (Including Management Services), and $885.90 million from Specialty Contractors.

Insider Ownership: 14.2%

Earnings Growth Forecast: 49.6% p.a.

Tutor Perini, characterized by high insider ownership, is poised for significant earnings growth, projected at 49.63% annually over the next three years. Despite revenue growth lagging behind the broader market at 9.1%, the company trades 51.5% below its estimated fair value and has seen substantial insider buying recently. Q1 2026 results showed increased sales of US$1.39 billion but a slight decline in net income to US$25.7 million compared to last year’s figures.

Key Takeaways

• Access the full spectrum of 176 Fast Growing US Companies With High Insider Ownership by clicking on this link.
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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.The analysis only considers stock directly held by insiders. It does not include indirectly owned stock through other vehicles such as corporate and/or trust entities. All forecast revenue and earnings growth rates quoted are in terms of annualised (per annum) growth rates over 1-3 years.