Exhibit 99.1 Contacts: Media Relations Investor Relations Benjamin Thiele-Long Cathy Yao benjamin.thiele-long@petco.com cathy.yao@petco.com FOR IMMEDIATE RELEASE: March 13, 2024 Petco Health + Wellness Company, Inc. Reports Fourth Quarter and Full Year 2023 Earnings Q4 2023 Highlights • Net revenue of $1.7 billion increased 6.1 percent year over year including the 14th week • Comparable sales declined 0.9 percent year over year and increased 4.4 percent on a two-year basis • GAAP net loss of $22.6 million, ...