ICON plc reported a challenging first quarter of 2025 with revenue and bookings below expectations due to market volatility and delays in customer decision making. Despite revenue pressure, adjusted EBITDA margin and EPS were in line with expectations due to cost control. Full-year 2025 guidance was updated, primarily excluding two large next-generation COVID vaccine trials.
Net business wins for the quarter were $2,022 million, resulting in a net book-to-bill ratio of 1.01.
Closing backlog increased by 0.3% from Q4 2024 and 6.0% from Q1 2024, reaching $24.7 billion.
Q1 2025 revenue was $2,001.3 million, a 4.3% decrease from Q1 2024.
GAAP diluted EPS for Q1 2025 was $1.90, a 15.6% decrease from Q1 2024, while adjusted diluted EPS was $3.19.
ICON updated its full-year 2025 financial guidance, primarily excluding two large next-generation COVID vaccine trials. Revenue is now expected to be in the range of $7,750 - $8,150 million, and adjusted diluted earnings per share in the range of $12.75 to $14.25.