As of Q4'25, ISRG reported R&D Expenses of USD 353M and SG&A Expenses of USD 687.1M, marking the highest quarterly operating expenses within the covered period from Q1'23 to Q4'25. Both categories have reached new peaks, with SG&A Expenses showing a particularly significant increase in the latest quarter. Throughout the period, the chart reveals a steady upward trend in both R&D and SG&A Expenses, with occasional quarter-to-quarter fluctuations. Notably, SG&A Expenses experienced sharp jumps in Q4'23, Q4'24, and Q4'25, while R&D Expenses grew more gradually but consistently. This pattern suggests ISRG is increasingly investing in both research and administrative functions, with operating expenses accelerating towards the end of the observed timeframe.