Market Cap

Altimmune, Inc. Market Capitalization:

$366.2 Million

USD as of Jan. 1, 2026

business Altimmune, Inc. Company Profile

Altimmune, Inc. Main Stock Listing

NASDAQ: ALT

Market Capitalization History of Altimmune, Inc.

Market capitalizations are calculated from the opening stock price at the beginning of each month.

Yearly evolution of Altimmune, Inc. market cap

Date Market Cap YoY Change
Jan. 1, 2026 $366.2 M -27.06%
Jan. 1, 2025 $502.1 M -16.48%
Jan. 1, 2024 $601.2 M -7.12%
Jan. 1, 2023 $647.3 M 85.63%
Jan. 1, 2022 $348.7 M -43.49%
Jan. 1, 2021 $617.1 M 730.23%
Jan. 1, 2020 $74.3 M -46.08%
Jan. 1, 2019 $137.9 M -94.13%
Jan. 1, 2018 $2.35 B

Market capitalization is calculated from the opening stock price at the beginning of each year.

Stocks & Indices

Altimmune, Inc. has the following listings and related stock indices.


Stock: NASDAQ: ALT

Stock: BMV: ALT1

Stock: FSX: 3G0

What is a company's market capitalization?

The market capitalization of a company, more simply referred to as "market cap", is the total market value of a publicly traded company's outstanding shares. It is often considered as a key indicator of what a company is worth.