GOLUB CAPITAL BDC Business Summary

Golub Capital BDC, Inc. (GBDC) operates as an externally managed, closed-end management investment company that generates revenue primarily through interest income and capital appreciation from a portfolio of senior secured loans. As of early 2026, the company’s high-density investment strategy is concentrated in "one-stop" (unitranche) and first-lien senior secured loans, which comprise over 90% of its $8.6 billion portfolio, targeting U.S. middle-market companies typically backed by private equity sponsors. Its primary business segments are categorized by debt instrument type, including senior secured, one-stop, second lien, and a smaller allocation to subordinated debt and minority equity warrants. GBDC competes directly with major business development companies such as Ares Capital (ARCC), Oaktree Specialty Lending (OCSL), and New Mountain Finance (NMFC); it distinguishes itself in the market through a unique, low-cost fee structure and a defensive credit posture focused on resilient industries like software and healthcare services. The leadership team is anchored by the founding Golub brothers, with David B. Golub serving as Chief Executive Officer and Chairman of the Board, and Lawrence E. Golub serving as a Director and former Chairman. David Golub brings a distinguished pedigree with an AB from Harvard, an MPhil from Oxford as a Marshall Scholar, and an MBA from Stanford, alongside previous experience at Lazard and Centre Partners. The executive suite includes Chief Financial Officer Christopher Ericson, who previously held senior roles at Guggenheim Partners and Deloitte, and Chief Operating Officer Tim Topicz, a former investment banker at Wells Fargo Securities specializing in the BDC sector. The company is overseen by a robust board of directors featuring notable members such as Anita Rival and William Webster IV, while its investment activities are managed by GC Advisors LLC, an affiliate of the broader Golub Capital platform which manages over $90 billion in assets.