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Phathom Pharmaceuticals (PHAT) R&D spending by quarter

Phathom Pharmaceuticals' R&D spending was $8.7M in Q3 2026 (third quarter 2026), +12% from Q2 2026. Over the last 7 quarters it ranged from $7.0M (Q3 2025) to $9.2M (Q1 2025).

Phathom Pharmaceuticals R&D spending by quarterPhathom Pharmaceuticals R&D spending by quarter$9.2MQ1 2025$9.1MQ2 2025$7.0MQ3 2025$7.5MQ4 2025$7.8MQ1 2026$7.8MQ2 2026$8.7MQ3 2026
QuarterR&D spendingQ/QY/Y
Q3 2026$8.7M+12%+24%
Q2 2026$7.8M+0.5%-14%
Q1 2026$7.8M+4%-15%
Q4 2025$7.5M+7%—
Q3 2025$7.0M-23%—
Q2 2025$9.1M-1%—
Q1 2025$9.2M——

Q3 2026 at a glance

Phathom Pharmaceuticals, Q3 2026: revenue $84.7M (+71% year over year), operating margin -0.1%, net loss $13.9M, operating cash flow $1.8M. The chart follows the revenue to costs, profit and cash.

Questions

What is Phathom Pharmaceuticals' R&D spending?

Phathom Pharmaceuticals' R&D spending was $8.7M in Q3 2026 (third quarter 2026), +12% from Q2 2026.

How has Phathom Pharmaceuticals' R&D spending changed?

Over the last 7 quarters it ranged from $7.0M (Q3 2025) to $9.2M (Q1 2025).

Q3 2026 results → · How Phathom Pharmaceuticals makes money →