Phathom Pharmaceuticals, Inc.

PHATNASDAQHealthcare● Active

$10.00

$-0.13(-1.28%)

Market Cap$797559000

P/E Ratio—

52W High$18.31

52W Low$4.471

Avg Volume1.2M

Open$10.18

Beta0.51

Overview

Phathom Pharmaceuticals, Inc. (PHAT) Number of Employees – History & Annual Headcount

Annual SEC headcount, year-over-year change, and per-employee efficiency — chart and full history below.

SEC EDGAR · FMP · PHAT · as of Feb 26, 2026

Latest filing snapshot

371

-56-13.11%vs prior year

Phathom Pharmaceuticals, Inc. (PHAT) employee data is sourced from the annual SEC 10-K filing. As of 2025, full-time employees only. Global consolidated headcount. View SEC filing ↗

SEC 10-K·Period end: 2025-12-31·Full-time · Global

Total Employees

371

Change (1Y)

-56

Growth % (1Y)

-13.11%

Revenue / Employee

$472.0K

Net Income / Employee

$-596.4K

Market Cap

$798M

PHAT Employee Count

2019 – 2025 · Annual · SEC filing

Source: SEC annual filings · Hover bar to view year data · Click to view original filing

Employees History

Filing Date	Period End	Employees	Change (1Y)	Growth (1Y)
2026-02-26	2025-12-31	371	-56	-13.11%
2025-03-06	2024-12-31	427	-25	-5.53%
2024-03-07	2023-12-31	452	+340	+303.57%
2023-02-28	2022-12-31	112	+35	+45.45%
2022-03-01	2021-12-31	77	+22	+40.00%
2021-03-30	2020-12-31	55	+30	+120.00%
2020-03-19	2019-12-31	25	—	—

▸ Source: SEC Annual Reports (Form 10-K / 20-F). Employee counts as of fiscal year end. Click the ↗ icon at the end of a row to open the original SEC filing in a new tab.

Related Companies — Employee Count

Biotechnology

#SymbolCompanyEmployeesMkt Cap

PHAT

Phathom Pharmaceuticals, Inc.YOU

371$798M #2

NRIX

Nurix Therapeutics, Inc.

BridgeBio Oncology Therapeutics Inc.

62$623M #6

BCAX

Bicara Therapeutics Inc. Common Stock

Source: /stock-peers + /profile.fullTimeEmployees · Click row → /employees · Sorted by headcount · PHAT peer comparison

About PHAT employees

PHAT Employees · Headcount

Phathom Pharmaceuticals, Inc. (PHAT) employee data is sourced from the annual SEC 10-K filing. As of 2025, Phathom Pharmaceuticals, Inc. had 371 full-time employees globally. Full-time employees only. Global consolidated headcount.

Phathom Pharmaceuticals, Inc. employs 371 full-time employees as of the latest filing within the Biotechnology industry. Revenue per employee stands at $471,995, reflecting the company's operational efficiency.

Phathom Pharmaceuticals, Inc.'s workforce decreased by 56 (13.11%) in 2025 compared to the prior fiscal year. The historical trend reflects the company's expansion and contraction cycles.

Phathom Pharmaceuticals, Inc.'s revenue per employee of $471,995 positions it among the notable performers in the Biotechnology sector for operational efficiency.

Revenue Financial statements Net income SEC filings Price history Forecast & ratings Ownership Earnings

Frequently Asked Questions

PHAT Employees · 5 questions

As of the latest SEC 10-K filing (2025), Phathom Pharmaceuticals, Inc. had 371 full-time employees globally. This figure is sourced from the company's mandatory annual disclosure to the SEC.

Phathom Pharmaceuticals, Inc. employee counthow many employees does Phathom Pharmaceuticals, Inc. havePHAT total employees 2025

▸ Data source: FMP /historical-employee-count · SEC EDGAR annual filings · As reported · Global consolidated headcount · As of 2026-02-26