In Q4'26, Marvell Technology's (MRVL) total operating expenses reached $734M USD, comprising $536M in R&D expenses and $198M in SG&A expenses. This marks the highest quarterly total in the observed period, driven primarily by a notable increase in R&D spending. Over the timeframe from Q1'24 to Q4'26, operating expenses exhibited an overall upward trend, rising from $679.7M to $734M, with R&D expenses showing consistent growth from $480.7M to $536M amid investments in innovation, while SG&A expenses remained relatively stable, fluctuating between $186.4M and $213M. Key patterns include a brief dip in total expenses to $656.5M in Q1'25, followed by steady recovery and acceleration in later quarters, highlighting a focus on R&D as the dominant component, accounting for approximately 70-73% of total expenses throughout.