Exhibit 99.1 News Release For Immediate Release Sallie Mae Reports First-Quarter 2024 Financial Results NEWARK, Del., April 24, 2024 - Sallie Mae (Nasdaq: SLM), formally SLM Corporation, today released first-quarter 2024 financial results. Complete financial results and related materials are available at www.SallieMae.com/investors. The materials will also be available on the Securities and Exchange Commission’s website at www.sec.gov. Sallie Mae will host an earnings conference call today, April 24, 2024, ...