PHATPhathom Pharmaceuticals, Inc.

$5.72-58% 1Y
Latest close: a new 52-week lowOct 23, 2026what changed →

Is the business good?

Mixed

Margins steady. That is the only one of 4 checks this filer's data supports, so take it as a single data point rather than a settled answer.

1 neutral, 3 without data
Margin direction, 3 yearsStablederived

Margins have held roughly steady, a stable cost structure.

Where this answer is blind. The F-score rewards improvement, so an already-elite company can score mid-pack.

How good a business is PHAT?

Phathom Pharmaceuticals, Inc. keeps −17% of every revenue dollar as operating profit, against −82% for the median Biotechnology name.

−17%

Operating margin · Biotechnology median −82% · 12 months to Q2 2026

Share count, year on year
+16%

Share count, year on year · shareholders own a smaller slice than a year ago

R&D as % of revenue
13%

R&D as % of revenue

Gross margin
83%

Gross margin

Operating margin by fiscal year
YearOperating margin
FY2023−24533%
FY2024−502%
FY2025−91%
Details›
Gross margin12 months to Q2 2026
83%
Operating margin12 months to Q2 2026
−17%
Net margin12 months to Q2 2026
−41%
Free cash flow margin
−15%
R&D as % of revenue
13%
Revenue, trailing twelve months
$240M
Free cash flow, trailing twelve months
−$37M
Net income, trailing twelve months
−$99M

Margins, capital and share counts from the statements as filed with the SEC; cash conversion is operating cash flow over operating profit after tax.

Customers and suppliers

Who buys from PHAT and who it buys from, as the companies report it.

Customerswho buys
  • Three customers
    69%

    Combined share of revenue · FY2025 10-K

Supplierswho it buys from

None disclosed.

A company has to disclose every customer behind 10% or more of its revenue. Each share comes from the latest annual report of the company that states it and shows on both companies’ pages; PHAT’s own figures are from its FY2025 10-K. Smaller customers and suppliers go unreported.