Question · Q4 2025
Doug Schenkel inquired about the breakdown of Signatera volume and mix between exome, genome, and Latitude in Q4 2025, and the expected mix for 2026, along with its implications for gross margin. He also asked if colorectal cancer (CRC) volume is expected to dip below 50% of total Signatera and Latitude volume as breast and lung indications accelerate.
Answer
Steve Chapman (CEO, Natera) stated that the vast majority of volume is exome, with some interest in genome from certain physicians and academic centers. Latitude is primarily for cases where tissue is unavailable (approximately 5% of CRC) and for physicians preferring tumor-naive testing, representing a new growth opportunity. He expects CRC volume to normalize over time to reflect cancer prevalence, with other tumor types accelerating due to years of data generation.
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