Hannon Armstrong Sustainable Infrastructure Capital, Inc.: management transactions · United States · SEC (Form 4)

About Hannon Armstrong Sustainable Infrastructure Capital, Inc.

Hannon Armstrong Sustainable Infrastructure Capital, Inc. (“HASI”) is a United States-based company listed on the NYSE. Headquartered in Annapolis, Maryland, it is a specialist investor in sustainable infrastructure and energy-transition assets. The company focuses on real assets that generate long-duration, recurring cash flows, which gives it a profile distinct from a traditional utility, a pure project developer, or a commodity-exposed power producer. Historically rooted in infrastructure finance, HASI has evolved into a climate-focused capital provider with a strong emphasis on financing the decarbonization of the U.S. economy. HASI’s business model centers on several complementary investment lines. It finances and structures investments across energy efficiency, solar, wind, battery storage, grid-related assets, and other sustainable infrastructure categories. The platform also participates in resilience-oriented assets, including water, stormwater, and climate-adaptation projects. In practical terms, HASI provides capital through debt, equity, structured finance, and strategic partnership structures, working with developers, operators, utilities, and institutional counterparties. This creates a diversified mix of yield-oriented investments while supporting the build-out of low-carbon infrastructure. From a competitive standpoint, HASI occupies a differentiated niche in the market. It is not a generalist financial institution; rather, it sits at the intersection of specialty finance, real-asset investing, and climate infrastructure. Its competitive strengths include sector specialization, underwriting expertise in complex project structures, and access to a diversified funding platform. The company has also highlighted a broad U.S. investment opportunity set tied to sustainable infrastructure, reinforcing its domestic focus. While its counterparties may be global, its core market exposure remains the United States. Recent developments underscore the company’s active expansion strategy. HASI reported strong 2025 performance, including higher investment volumes and growth in managed assets. It also announced strategic initiatives such as an expanded joint venture with Sunrun to accelerate distributed power development and a large partnership with KKR to invest in sustainable infrastructure projects. In addition, HASI strengthened its liquidity and financing profile through upsized bank facilities and green debt issuance. For investors, HASI offers a listed NYSE vehicle in the United States that provides focused exposure to the energy transition through infrastructure finance rather than direct project ownership alone.