Filing Flows

Filing Flows › Altimmune (ALT) › Q4 2025 › vs Q3 2025

Altimmune (ALT) Q4 2025 vs Q3 2025 (quarter over quarter)

Altimmune's revenue rose $21K (+420%) from $5K in Q3 2025 to $26K in Q4 2025.

Altimmune, Q4 2025: revenue $26K (+420% year over year), net loss $27.4M, operating cash flow −$19.4M. The chart draws each line against Q3 2025, the increases inside each band.

Altimmune: what changed, Q4 2025 vs Q3 2025Altimmune: what changed, Q4 2025 vs Q3 2025Net loss$8.3MOperating cash sources$8.3MNet loss absorbed$8.3MCosts & expenses$8.1MOperating costs$8.1MCash used in operations$7.6MGeneral & admin$4.6MResearch & development$3.4MShare-based compensation$1.4MWorking capital & other−$593K

Every line

LineQ4 2025Q3 2025Change%
Revenue$26K$5K$21K+420%
Other income, net$1.5M$1.8M−$310K-17%
Net loss$27.4M$19.0M$8.3M+44%
Costs & expenses$28.9M$20.9M$8.1M+39%
Operating costs$28.9M$20.9M$8.1M+39%
Research & development$18.4M$15.0M$3.4M+23%
General & admin$10.5M$5.9M$4.6M+78%
Operating cash sources$27.4M$19.0M$8.3M+44%
Depreciation$26K$27K−$1K-4%
Share-based compensation$4.9M$3.6M$1.4M+39%
Working capital & other$2.9M$3.5M−$593K-17%
Cash used in operations$19.4M$11.9M$7.6M+63%
Net loss absorbed$27.4M$19.0M$8.3M+44%

Questions

How much did Altimmune's revenue grow quarter over quarter in Q4 2025?

Altimmune's revenue rose $21K (+420%) from $5K in Q3 2025 to $26K in Q4 2025.

Q4 2025 results → · Compare in the interactive Sankey →