PennantPark Investment Corporation is a private equity fund dedicated to investing in middle market firms through mezzanine debt, senior secured loans, and equity investments. The fund targets a wide range of industries such as real estate, education, healthcare, manufacturing, and retail across the United States. With an investment range of $10 million to $100 million and EBITDA between $10 million and $50 million, it offers a diverse portfolio of investments including preferred stock, common stock, warrants, and distressed debt securities.