Thanks, Rob, and good morning, everyone. I'll begin my comments this morning with a review of our fourth quarter 2025 results and then discuss our first quarter and full year outlook for 2026. We'll then open the call up for questions. Fourth quarter revenue increased 37% to a record $11.3 million compared to $8.2 million in Q4 2024. During the fourth quarter, we placed 16 Growth Direct systems, which was also a record compared to 6 systems in the fourth quarter last year. We also completed 3 validations in the quarter compared to 4 in Q4 last year. Product revenue, which is comprised of systems and consumable revenue, increased 78% to $9.3 million in the fourth quarter compared to $5.2 million in Q4 2024. This was primarily driven by the increase in system placements. Consumable revenue grew 11% in the fourth quarter compared to Q4 last year. Service revenue was $2 million in the fourth quarter, which was in line with the guidance we provided in November, compared to $3 million in Q4 2024. As a reminder, the timing of validations tends to be the largest driver of quarter-to-quarter variability in service revenue and the validation revenue we generated in Q4 2024 and remains a company record. Fourth quarter recurring revenue, which consists of consumables and service contracts increased 10% to $4.6 million compared to $4.2 million in Q4 2024. Nonrecurring revenue, which is comprised mainly of systems and validation revenue increased 65% to $6.7 million. Turning to margin. Product margin was negative 8% in Q4, this includes a $1.1 million or 12 percentage point impact related to the write-off of unusable consumable inventory in the period. Our manufacturing team has addressed the underlying situation, and we do not expect any further charges related to this in 2026. Excluding the impact of this write-off, Q4 product margin was positive 4%, which was consistent with our guidance. Service margins were 22% in the fourth quarter compared to a record 47% in Q4 last year. The lower service margins in Q4 this year were due to the lower service revenue in the period, which more than offset the positive impact of service productivity improvements and cost reductions made during 2025. On a combined basis, fourth quarter gross margin was negative $0.3 million or negative 3% compared to positive $1 million or 12% in Q4 last year. Excluding the impact of the inventory-related charges we recorded in the period, total Q4 gross margin was positive 7%. This was in line with our guidance and slightly lower than the Q4 last year due to the impact of lower service revenue on service margins. Moving down the P&L. Total operating expenses were $11.9 million in the fourth quarter compared to $11.2 million in Q4 2024. Within OpEx, R&D expenses were $3.2 million, sales and marketing expenses were $3.3 million and G&A expenses were $5.3 million. For the full year, total operating expenses decreased by 3%, while revenue increased by 20%. Interest income was $0.5 million and interest expense was $0.8 million in the fourth quarter. Q4 net loss was $12.5 million. This compares to a net loss of $9.7 million in Q4 last year. The larger net loss in Q4 this year was primarily attributable to the inventory charges we recorded as well as the lower service margin and higher interest expense in the period. Net loss per share was $0.28 in Q4 compared to net loss per share of $0.22 in the prior year quarter. With respect to noncash expenses and capital expenditures, depreciation and amortization expenses were $0.8 million, stock compensation expense was $0.6 million and capital expenditures were $0.1 million in the fourth quarter. We ended the year with $39 million in cash and investments, which was in line with our guidance as well as $25 million of unused capacity under our debt facility with Trinity Capital. Our net cash burn was $3 million in Q4. As a reminder, Q4 is typically our lowest burn quarter, while Q1 is typically our highest burn quarter each year. Now I'll turn to our 2026 outlook. For the full year 2026, we expect total revenue to be in a range of $37 million to $41 million, which assumes we place between 30 and 38 systems. This system placement range reflects a few key variables. First, our guidance continues to account for some ongoing uncertainty around the timing and scale of customer purchase decisions, particularly with respect to larger multisystem opportunities which often involve more complex purchasing considerations. Second, the low end of our guidance range assumes we do not place any new large multisystem orders in 2026 other than the Samsung order announced this morning. And third, we continue to expect MilliporeSigma to contribute meaningfully to system placements in 2026. However, the low end of our guidance range does not assume they satisfy their full year 2 system commitment since some of those systems may be placed in Q1 2027. For Q1, we expect revenue of at least $7.5 million, including at least 5 system placements. Consistent with historical trends, we expect at least 30% of our system placements to be made in the first half of the year with the remainder in the second half. We also expect revenue and placements to peak in Q4, in line with typical seasonality. Turning to consumables. We expect revenue in Q1 and Q2 2026 to be slightly higher than Q4 2025 and then increased gradually over the remaining quarters with variability driven by the timing of customer orders and shipments. Looking at service, we expect revenue between $2.3 million and $2.6 million in Q1. We then expect service revenue to step down slightly in Q2, followed by meaningful increases in Q3 and again in Q4 based on our current expectations with respect to the timing of installation and validation activities. We expect to complete at least 25 validations in 2026 and with at least 3 in the first quarter. Turning to margins. We expect our Q1 gross margin as a percentage of revenue to be in the mid-single digits with product margin of negative single digits and service margin above 30%. Thereafter, we expect to reach and maintain positive product gross margin in each of the remaining quarters of 2026, led by improving consumable gross margin, which we expect to turn positive in the second half of the year as we fully realize the benefit of meaningful material cost reductions we recently locked in as well as benefits from other cost reduction and manufacturing and efficiency initiatives. For the full year, we expect total gross margin of approximately 20% with a Q4 exit rate in the mid-20% range or better, product margin in the high single digits to low teens and service margin above 40%. Consistent with prior years, we expect quarter-to-quarter variability in gross margin to be driven by progress on our product cost reduction and service productivity initiatives, overall revenue volumes and the revenue mix between systems, consumables and service in each period. We expect operating expenses to be between $47 million and $51 million for the full year. We expect $10 million in noncash expenses, including depreciation and amortization expense of $3 million and stock compensation expense of $7 million. We also expect CapEx of $2 million, interest income of $1 million and interest expense of $2 million. Looking further ahead, our strategic priorities of accelerating system placements, improving gross margin, innovating new products and prudently managing our cash remain unchanged. We continue to build momentum in our business, including our partnership with MilliporeSigma, which we expect will further accelerate progress on these strategic priorities over the coming years, including the meaningful contribution to system placements we've incorporated into our guidance for this year. That concludes my comments. So at this point, we'll open the call up for questions. Operator?