In Q4'25, Uber's total operating expenses reached $2.97B USD, with SG&A Expenses contributing the largest share at $2.09B USD and R&D Expenses at $885M USD, reflecting a slight uptick in R&D spending amid ongoing investments in innovation. From Q1'23 to Q4'25, R&D Expenses exhibited relative stability with minor fluctuations, ranging between $760M USD and $885M USD, while SG&A Expenses showed greater volatility, declining sharply from $2.20B USD in Q1'23 to $1.54B USD in Q4'23 before rebounding to highs of $2.46B USD in Q3'25, indicating potential cost optimization efforts followed by expansion-driven increases; overall, the stacked bar chart highlights SG&A as the dominant component, comprising 65-75% of total expenses across the period.