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CSTL vs RXST

Castle Biosciences, Inc. Common Stock and RxSight, Inc. Common Stock

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Castle Biosciences, Inc. Common Stock

Castle Biosciences, Inc., a molecular diagnostics company, provides test solutions for the diagnosis and treatment of dermatologic cancers, Barrett's esophagus (BE), uveal melanoma, and mental health conditions. The company offers DecisionDx-Melanoma, a risk stratification gene expression profile (GEP) test that predicts the risk of metastasis for patients with uveal melanoma; DecisionDx-SCC, a risk stratification test for cutaneous squamous cell carcinoma; MyPath Melanoma, a diagnostic GEP test for use in patients with difficult-to-diagnose melanocytic lesions; and TissueCypher, a risk stratification spatial-omics test to predict future development of progression of high-grade dysplasia and/or esophageal cancer in patients with non-dysplastic, indefinite dysplasia, and low-grade dysplasia BE. It also provides DecisionDx-UM, a risk stratification GEP test that predicts the risk of metastasis for patients with uveal melanoma; and IDgenetix, a pharmacogenomic test that helps guide optimal drug treatment for patients diagnosed with major depressive disorder, schizophrenia, bipolar disorder, anxiety disorders, social phobia, obsessive-compulsive personality disorder, post-traumatic stress disorder, and attention deficit hyperactivity disorder. The company offers its products to skin cancer and gastroenterology markets. The company was incorporated in 2007 and is headquartered in Friendswood, Texas.

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RxSight, Inc. Common Stock

RxSight, Inc., a commercial-stage medical technology company, engages in the research and development, manufacture, and sale of light adjustable intraocular lenses (LAL) used in cataract surgery in the United States. It offers RxSight system that enables doctors to customize and enhance the visual acuity for patients after cataract surgery. The company's RxSight system includes RxSight Light Adjustable Lens (LAL), an intraocular lens made of photosensitive material that changes shape in response to specific patterns of ultraviolet, which can be adjusted to improve uncorrected visual acuity; and RxSight light delivery device, an office-based light treatment device that delivers UV light in a programmed pattern to modify the LAL based on the visual correction needed to achieve desired vision after cataract surgery. The company was formerly known as Calhoun Vision, Inc. and changed its name to RxSight, Inc. in February 2017. RxSight, Inc. was incorporated in 1997 and is headquartered in Aliso Viejo, California.

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