Thanks, John, and good afternoon, everyone. First, I would like to provide an update from the women's health side on our non-invasive fetal RhD test, where we're continuing to see growing demand and adoption. We were pleased to see the publication of our clinical validation study in the Journal of Obstetrics and Gynecology in November. This was the largest study of its kind performed in the U.S. to-date. It demonstrated excellent performance with sensitivity of 100% and specificity of 99.3%. The study provides compelling scientific evidence on the ability of our test to identify fetal RhD status and demonstrate the potential to assist patients and clinicians in the prevention and management of RhD alloimmunization. Thanks to the growing base of evidence, together with guidelines from ACOG supporting the use of fetal RHD testing in certain patients. Adoption among eligible patients has been strong, and we were pleased to see commercial coverage initiated by one of the largest payers in the country. This new policy, which became effective last month, expands access to fetal RhD testing that can significantly improve precision medicine during pregnancy. Building on this successful launch from last year, we look forward to additional product and future announcements later this year in women's health. Transitioning now to organ health, I want to share some details on two unique studies on Prospera that we expect to readout in the coming months, and we believe will have a meaningful impact on the field. The first is the PEDAL study, which is a first of its kind respective clinical trial of kidney transplant patients, that is designed to evaluate the dynamics of donor DNA monitoring during treatment of a rejection event. This is similar to the cancer setting, where circulating tumor DNA monitoring with Signatera for immunotherapy response has become an important use case. We expect that Prospera-based therapy monitoring will also have utility for organ transplant recipients dealing with a rejection event. Incomplete resolution of rejection remains a significant risk factor for long-term graft survival. And up until now, there has been limited research into this area. With the PEDAL study, we hope to address whether on-treatment monitoring with Prospera can aid clinicians in understanding resolution of rejection and the risk of ongoing injury, and whether discrete trends are associated with outcomes at one year. Ultimately, understanding how each patient is molecularly responding to treatment may allow physicians to make dynamic adjustments to the treatment plans. Enrollment in the study included more than 580 patients across 28 leading sites in the U.S. and internationally, including UCLA, Cleveland Clinic, WashU, Mayo and more. Patients were monitored with Prospera for eight weeks following rejection, with tests performed at two-week intervals in the rejection cohort and clinical outcomes assessed at 12 months. We've submitted the results for peer-reviewed publication, and we look-forward to sharing those results once they're available. We are also outlining here a second novel study for Prospera, this one for heart monitoring. The DEFINE study is a large-scale, prospective, multicenter, longitudinal study of donor DNA in heart transplant patients that evaluated more than 100 patients and over 1,000 time points. The objective for DEFINE is to assess serial donor DNA dynamics, along with serial endomyocardial biopsies and their associations of clinical outcomes in the first year after heart transplant. It's the first of its kind longitudinal study, we believe, and the first to evaluate the dynamics of Prospera's unique two-threshold caller using the Donor Quantity Score in conjunction with serial biopsies and all compared to outcomes at one year. The DEFINE study is being submitted for publication, so we look forward to a readout later this year. We believe this can make a meaningful impact on the standard-of-care in heart transplant monitoring. Turning now to Oncology. The first big news is that we announced Medicare coverage of Signatera of serial recurrence monitoring in non-small cell lung cancer, including stages 1, 2 and 3 and including both resectable and non-resectable diseases. This coverage was secured based on three peer-review publications showing the validity and utility of Signatera in lung cancer. We think the coverage is important for several reasons. First and foremost, there is a significant unmet need for lung cancer patients in the surveillance setting. Timely detection of recurrence is a core principle of care, but serial imaging has limitations in sensitivity and specificity, and it's often hard to interpret, especially after surgery and radiation. Additionally, this is the first time we have secured reimbursement in Stage 1 disease based on the strength of our data in that setting. Lung cancer is a lethal disease, hard to treat, where even Stage 1 patients have a five-year rate of recurrence that is higher than the rate of recurrence in Stage 2 and 3 colorectal cancer. Finally, this coverage expands on Signatera's pre-existing coverage for immunotherapy monitoring, where immunotherapy is already commonly prescribed in the adjuvant setting as well as in the neoadjuvant and metastatic settings for non-small cell lung cancer. We look forward to working more closely with the thoracic oncology community to improve care and outcomes for patients with lung cancer. Looking beyond lung cancer now, to the NCCN guidelines, we were pleased by the recent guideline updates, which for the first time included ctDNA in the management guidelines of colorectal cancer as well as Merkel cell carcinoma. These updates are a significant validation of our Signatera clinical data strategy, as well as the core strength of our technology. The inclusion of Signatera every three months for surveillance of Merkel cell carcinoma is a big step forward for the management of this rare but aggressive form of skin cancer. The guidelines specifically referenced the peer-reviewed publication about Signatera from a study that was initiated several years ago and published last year. Adoption in Merkel cell carcinoma has been strong. Additionally, we were pleased to see Signatera included in the guidelines of colon and rectal cancers, specifically acknowledged as a high-risk prognostic marker in the adjuvant setting. Based on the initial positive feedback from physicians, we believe these recent guideline updates will support the use of Signatera in more CRC patients than before and likely to support adoption by new physicians. It's worth noting that this language in colorectal cancer was discussed and voted on by the committee in the early fall of last year before the publication of key datasets, including the overall survival data from the GALAXY study, the surveillance data from the BESPOKE study, and the predictive data from the CALGB/SWOG 80702 study. We believe this recent data has the potential to support further guideline updates in the not-too-distant future. Now I will turn it over to Alex to discuss the data in greater detail and our product roadmap in oncology. Alex?