Amprius Technologies, Inc.: directors' dealings · United States · SEC (Form 4)

About Amprius Technologies, Inc.

Amprius Technologies, Inc. (ticker: AMPX) is a U.S.-listed company trading on the NYSE in the United States. From an equity analyst’s perspective, the company sits at the intersection of advanced materials, battery technology, and electrification. Amprius develops next-generation lithium-ion batteries built around a silicon-anode platform, with the core value proposition centered on higher energy density, higher power output, faster charging, and improved range or flight time versus conventional graphite-based cells. This makes the company particularly relevant in performance-sensitive markets where weight, volume, and endurance are critical. The company’s roots are in silicon-anode battery innovation. Amprius states that it has been in commercial production for mobility applications since 2018, and its current operational base is Fremont, California, where it maintains its corporate headquarters, an R&D lab, and a pilot manufacturing facility for silicon anodes and cells. That Fremont site functions as the company’s engineering and validation center, while larger-scale manufacturing is increasingly supported through contract manufacturing and strategic supply partnerships. In other words, Amprius is a technology company with industrial ambitions, but its model is still heavily dependent on external scale-up execution. Amprius’ main product platforms include SiMaxx and SiCore, both positioned as high-performance silicon-anode battery solutions. The company targets demanding end markets such as drones, unmanned aerial vehicles, light electric vehicles, aviation-related systems, defense applications, and other mobility or specialty industrial uses. Its competitive positioning is built less on mass-market volume and more on technical differentiation, intellectual property, and the ability to deliver premium performance where standard lithium-ion chemistry is not enough. In that sense, Amprius is competing in a niche where performance metrics matter more than commodity pricing. Recent company developments have reinforced this positioning. In 2025, Amprius announced shipments of SiCore cells to drone customers, a $21 million purchase order for electric two- and three-wheelers, and strategic manufacturing partnerships in South Korea and in the United States to expand its production footprint. The company also reported meaningful commercial progress during 2025, including a broader customer base and strong revenue growth. These updates suggest that Amprius is moving from pure technology validation toward broader commercialization. For investors, the key takeaway is that Amprius combines upside from advanced battery adoption with the risks typical of an emerging industrial technology company: production ramp risk, customer concentration risk, dependence on manufacturing partners, and capital intensity. Its NYSE listing and U.S. headquarters provide visibility, but the investment case remains tied to successful execution, scaling, and sustained demand for high-energy-density silicon-anode batteries.