Dorman(DORM) - 2023 Q4 - Annual Results

Exhibit 99.1 Dorman Products, Inc. Reports Fourth Quarter and Full Year 2023 Results; Issues 2024 Guidance Highlights (All comparisons are to the prior year period unless otherwise noted): • Net sales of $494.3 million for the quarter, down 1% reflecting the impact of an extra week in the prior year period, up 3% excluding this impact • Record diluted earnings per share (“EPS”) of $1.60 for the quarter, up 182% compared to $0.57 • Record adjusted diluted EPS* of $1.57 for the quarter, up 55% compared to $1. ...