Exhibit 99.1 PRESS RELEASE FOR IMMEDIATE RELEASE Big Lots Reports Q1 Results Q1 comparable sales decline due to challenging consumer environment; gross margins significantly improved year-over-year and continued reductions in adjusted operating expenses Q1 GAAP EPS loss of $6.99; adjusted EPS loss of $4.51 Expect significant quarterly year-over-year gross margin rate improvements through 2024, with a path to positive comparable sales later in the year On track to achieve 75% bargains penetration and, within ...