Power Solutions International, INC. Stock: price and insider trades · United States · SEC (Form 4)

About Power Solutions International, INC.

Power Solutions International, Inc. (ticker: PSIX) is an industrial company listed on the NASDAQ market in the United States. The company designs, engineers, manufactures, markets, and sells a broad range of advanced, emission-certified engines and power systems for industrial, transportation, and power-generation applications. According to its latest annual report, Power Solutions International was incorporated in Delaware in 2011, while its operating history dates back to 1985, when the business began as a distributor of Perkins diesel power systems before expanding into alternative-fuel technologies. Its headquarters is in Wood Dale, Illinois, and its primary manufacturing, assembly, engineering, R&D, sales, and distribution footprint is concentrated in the suburban Chicago area, with additional operations in Darien and Beloit, Wisconsin. ([investors.psiengines.com](https://investors.psiengines.com/static-files/fc62e2e4-3edf-46e0-ac1a-6a9e9666edd1)) From a competitive standpoint, PSIX is positioned as a specialized, engineering-led supplier of customized power solutions rather than a commodity engine manufacturer. Its portfolio includes spark-ignited and compression-ignition internal combustion engines and integrated power systems powered by natural gas, propane, biofuels, gasoline, and diesel. The company serves global OEMs and end users across a wide set of end markets, including standby and prime power generation, demand response, microgrids, combined heat and power, material handling, agriculture and turf, construction, pumps and irrigation, compressors, utility vehicles, and vocational trucks and buses. This diversification helps reduce reliance on any single end market, while the company’s compliance capabilities with EPA, CARB, and EU standards support its value proposition in regulated applications. ([investors.psiengines.com](https://investors.psiengines.com/static-files/fc62e2e4-3edf-46e0-ac1a-6a9e9666edd1)) Power Solutions International’s product strategy is centered on highly engineered, application-specific systems that combine internally designed and sourced engine blocks with associated components such as cooling, electronics, air intake, fuel systems, enclosures, and telematics. The company also provides aftermarket service parts and support programs, which are important to its installed-base economics and recurring revenue potential. Management describes the business as a single reportable segment, so investors typically evaluate PSIX through the lens of product mix, margin profile, execution on customer programs, and exposure to industrial demand cycles rather than by segment disclosure. Geographically, the company sells into the United States, North America more broadly, and international markets, making it relevant both to domestic and export-oriented industrial demand. ([investors.psiengines.com](https://investors.psiengines.com/static-files/fc62e2e4-3edf-46e0-ac1a-6a9e9666edd1)) Recent developments suggest a deliberate strategic refocus. In its 2024 annual report, PSIX stated that it no longer sells emission-certified engines into the on-road market as of January 1, 2024, implying a sharper concentration on industrial and power-system end markets. The same filing highlighted ongoing initiatives to improve profitability through selective price increases, product redesigns, and component re-sourcing to support better margins. In addition, the stock has been followed closely for SEC Form 4 insider activity, which may be relevant for market observers tracking governance and ownership dynamics, though such filings should be interpreted alongside operating performance and not in isolation. ([investors.psiengines.com](https://investors.psiengines.com/static-files/fc62e2e4-3edf-46e0-ac1a-6a9e9666edd1))