NASDAQ$GOSS
Gossamer Bio Inc · Q4 2025 earnings
Q4 2025 earnings · · After market close · Investor relations
Briefing
Gossamer Bio reported Q4 2025 collaboration revenue of $13.8M and a net loss of $47.2M ($0.21 per share).
Q4 collaboration revenue was $13.8 million versus $9.4 million a year ago. Net loss was $47.2 million, or $0.21 per share, with cash and marketable securities of $136.9 million at year-end.
- PROSERA Phase 3 narrowly missed prespecified alpha on 6MWD but showed activity in higher-risk PAH patients.
- SERANATA enrollment paused pending regulatory review of PROSERA implications.
- Workforce reduction aligns resources with FDA engagement and strategic planning.
- Plans Type C meeting potentially June 2026.
- FY25 net loss $170.4M, or $0.75 per share.
Headline financials
Revenue & EPS history
Gossamer Bio · Revenue · Quarterly
$13.8M
Revenue by segment
Gossamer Bio · $17M total across 1 segment · Q1 2026
- Collaborators$17M—100.0%
Forward guidance
Type C FDA meeting planned on PROSERA; SERANATA paused while evaluating regulatory paths.
Tailwinds
- Subgroup signals support continued dialogue with FDA and Chiesi.
- Cash runway into Q1 2027 on current resources.
Headwinds
- Primary endpoint did not meet prespecified statistical threshold.
- Financing and strategic options remain critical.
Historical earnings impact
How earnings announcements have historically affected this stock's price.
Avg. return before/after earnings
Based on 19 quarterly earnings reports · overlaid with Q4 2025
-0.6%
Avg return
Earnings day
-1.3%
Avg return
5 days after
-1.1%
Avg return
30 days after
43%
13 / 30 earnings
Positive
+15.2%
Q4 2022
Best reaction
-15.6%
Q1 2020
Worst reaction
| Quarter | Report date | Reaction (Day 0) | +5 days | +30 days |
|---|---|---|---|---|
| Q1 2026 | +1.2% | -34.9% | -50.9% | |
| Q4 2025 | -10.8% | -21.0% | -5.5% | |
| Q3 2025 | +2.2% | +16.9% | +44.2% | |
| Q2 2025 | -8.5% | -18.9% | +15.7% | |
| Q1 2025 | +1.0% | +9.5% | +18.1% | |
| Q4 2024 | +0.0% | +6.0% | -38.4% | |
| Q3 2024 | -0.9% | -4.4% | -15.1% | |
| Q2 2024 | +4.3% | +7.5% | +12.5% | |
| Q1 2024 | -3.2% | -5.0% | -23.2% | |
| Q4 2023 | +4.1% | -4.8% | -26.2% | |
| Q3 2023 | -12.0% | +4.7% | +73.1% | |
| Q2 2023 | -7.0% | -9.3% | -24.7% | |
| Q1 2023 | +3.7% | -11.8% | -7.4% | |
| Q4 2022 | +15.2% | +5.7% | -0.5% | |
| Q3 2022 | -0.8% | -4.2% | -14.9% | |
| Q2 2022 | +4.6% | +6.5% | +13.7% | |
| Q1 2022 | +12.5% | +34.2% | +9.5% | |
| Q4 2021 | +3.7% | +1.0% | -2.8% | |
| Q3 2021 | -1.4% | -9.1% | -16.6% | |
| Q2 2021 | -0.8% | +9.5% | +18.9% | |
| Q1 2021 | -0.7% | -0.7% | +1.7% | |
| Q4 2020 | -9.4% | -5.5% | -11.6% | |
| Q3 2020 | -0.9% | -1.3% | +4.2% | |
| Q2 2020 | +5.1% | +2.4% | -1.1% | |
| Q1 2020 | -15.6% | -11.5% | -27.8% | |
| Q4 2019 | +5.5% | +5.7% | +40.0% | |
| Q3 2019 | -4.3% | -1.2% | +12.4% | |
| Q2 2019 | -2.5% | +3.2% | +2.6% | |
| Q1 2019 | +1.3% | +3.7% | -3.9% | |
| Q4 2018 | -4.9% | -10.8% | -30.1% | |
| Q3 2018 | — | — | — | |
| Q2 2018 | — | — | — | |
| Q1 2018 | — | — | — | |
| Q4 2017 | — | — | — | |
| Q3 2017 | — | — | — | |
| Q2 2017 | — | — | — | |
| Q1 2017 | — | — | — |
Discussion
Share your read of this quarter. Sign-in carries your eToro identity.
Join the conversation
Sign in with eToro to post your read of this quarter and vote on others'.
Sign in with eToro