Altimmune, Inc.

ALTNASDAQHealthcare● Active

$2.77

+$0.06(+2.03%)

Market Cap$244031444

P/E Ratio—

52W High$7.73

52W Low$2.56

Avg Volume4.0M

Open$2.75

Beta0.23

Employees Ownership Insider Trades

Altimmune, Inc. (ALT) 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 · ALT · as of Mar 6, 2026

Latest filing snapshot

-2-3.39%vs prior year

Altimmune, Inc. (ALT) 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

Change (1Y)

-2

Growth % (1Y)

-3.39%

Revenue / Employee

$719

Net Income / Employee

$-1.55M

Market Cap

$239M

ALT Employee Count

2005 – 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)
2026-03-06	2025-12-31	57	-2	-3.39%
2025-02-27	2024-12-31	59	+0	+0.00%
2024-03-27	2023-12-31	59	+7	+13.46%
2023-02-28	2022-12-31	52	+5	+10.64%
2022-03-15	2021-12-31	47	+4	+9.30%
2021-02-25	2020-12-31	43	+18	+72.00%
2020-03-27	2019-12-31	25	-2	-7.41%
2019-04-01	2018-12-31	27	-3	-10.00%
2018-04-02	2017-12-31	30	+17	+130.77%
2017-03-14	2016-12-31	13	+2	+18.18%

▸ 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.

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

About ALT employees

ALT Employees · Headcount

Altimmune, Inc. (ALT) employee data is sourced from the annual SEC 10-K filing. As of 2025, Altimmune, Inc. had 57 full-time employees globally. Full-time employees only. Global consolidated headcount.

Altimmune, Inc. employs 57 full-time employees as of the latest filing within the Biotechnology industry. Revenue per employee stands at $719, reflecting the company's operational efficiency.

Altimmune, Inc.'s workforce decreased by 2 (3.39%) in 2025 compared to the prior fiscal year. The historical trend reflects the company's expansion and contraction cycles.

Altimmune, Inc.'s revenue per employee of $719 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

ALT Employees · 5 questions

As of the latest SEC 10-K filing (2025), Altimmune, Inc. had 57 full-time employees globally. This figure is sourced from the company's mandatory annual disclosure to the SEC.

Altimmune, Inc. employee counthow many employees does Altimmune, Inc. haveALT total employees 2025

▸ Data source: FMP /historical-employee-count · SEC EDGAR annual filings · As reported · Global consolidated headcount · As of 2026-03-06