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Stocks · Health care · Pharmaceutical Preparations

Gossamer Bio, Inc.

GOSS Clue Score23
United States Fiscal year ends December CIK 0001728117
$9.31 -5.77% Close, 9 Oct 2026
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Price $9.31 −30.47% Close, 9 Oct 2026

Closing prices at the end of each trading day, from 8 Feb 2019. Not a live quote. Adjusted for share splits, so the line has no step at a split; dividends are not added back.

Revenue and profit

What the business sells, and what is left of it. Point at a year for the detail.
RevenueOperating incomeNet income
Fiscal year 2017Operating income−6.7Net income−6.8Fiscal year 2018Operating income−149.0Net income−147.0Fiscal year 2019Operating income−186.1Net income−180.3EPS, diluted−3.29Fiscal year 2020Operating income−234.0Net income−243.4EPS, diluted−3.55Fiscal year 2021Operating income−216.1Net income−234.0EPS, diluted−3.13Fiscal year 2022Revenue0.0Operating income−218.6Net income−229.4EPS, diluted−2.71Fiscal year 2023Revenue0.0Operating income−183.8Net income−179.8EPS, diluted−1.18Fiscal year 2024Revenue114.7Operating income−59.9Net income−56.5EPS, diluted−0.25Fiscal year 2025Revenue48.5 −57.7%Operating income−170.7Net income−170.4EPS, diluted−0.75
FY2017FY2018FY2019FY2020FY2021FY2022FY2023FY2024FY2025
Revenue n/a n/a n/a n/a n/a 0.0 0.0 114.7 48.5
Growth −57.7%
Operating income −6.7 −149.0 −186.1 −234.0 −216.1 −218.6 −183.8 −59.9 −170.7
Net income −6.8 −147.0 −180.3 −243.4 −234.0 −229.4 −179.8 −56.5 −170.4
Growth
EPS, diluted n/a n/a −3.29 −3.55 −3.13 −2.71 −1.18 −0.25 −0.75

Margins

How much of each dollar of revenue it keeps. Point at a year for the detail.
Operating marginNet margin
Fiscal year 2017Fiscal year 2018Fiscal year 2019Fiscal year 2020Fiscal year 2021Fiscal year 2022Fiscal year 2023Fiscal year 2024Operating margin−52.2%Net margin−49.3%Free cash flow margin−3.0%Fiscal year 2025Operating margin−352.2%Net margin−351.5%Free cash flow margin−353.5%
FY2017FY2018FY2019FY2020FY2021FY2022FY2023FY2024FY2025
Operating margin n/a n/a n/a n/a n/a n/a n/a −52.2% −352.2%
Net margin n/a n/a n/a n/a n/a n/a n/a −49.3% −351.5%
Free cash flow margin n/a n/a n/a n/a n/a n/a n/a −3.0% −353.5%

Cash flow

The cash the business makes, what it reinvests, and what it hands back. Point at a year for the detail.
Operating cash flowCapital expenditureFree cash flow
Fiscal year 2017Operating cash flow−5.7Fiscal year 2018Operating cash flow−51.0Capital expenditure−3.5Free cash flow−54.5Fiscal year 2019Operating cash flow−144.8Capital expenditure−3.0Free cash flow−147.8Fiscal year 2020Operating cash flow−176.4Capital expenditure−1.5Free cash flow−177.9Fiscal year 2021Operating cash flow−188.9Capital expenditure−1.5Free cash flow−190.4Fiscal year 2022Operating cash flow−187.0Capital expenditure−0.4Free cash flow−187.4Fiscal year 2023Operating cash flow−159.2Capital expenditure0.0Free cash flow−159.2Fiscal year 2024Operating cash flow−3.5Capital expenditure0.0Free cash flow−3.5Fiscal year 2025Operating cash flow−171.3Capital expenditure−0.1Free cash flow−171.3
FY2017FY2018FY2019FY2020FY2021FY2022FY2023FY2024FY2025
Operating cash flow −5.7 −51.0 −144.8 −176.4 −188.9 −187.0 −159.2 −3.5 −171.3
Capital expenditure n/a −3.5 −3.0 −1.5 −1.5 −0.4 0.0 0.0 −0.1
Free cash flow n/a −54.5 −147.8 −177.9 −190.4 −187.4 −159.2 −3.5 −171.3
Growth

Balance sheet

What it holds against what it owes, at each year end. Point at a year for the detail.
CashTotal debt
Fiscal year 2017Cash0.3Shareholders’ equity−6.9Fiscal year 2018Cash105.2Shareholders’ equity−120.1Fiscal year 2019Cash135.0Total debt28.5Net cash (debt)106.6Shareholders’ equity352.5Debt to equity0.08Fiscal year 2020Cash486.1Total debt28.7Net cash (debt)457.3Shareholders’ equity320.7Debt to equity0.09Fiscal year 2021Cash183.4Total debt29.1Net cash (debt)154.3Shareholders’ equity121.5Debt to equity0.24Fiscal year 2022Cash112.0Total debt23.6Net cash (debt)88.4Shareholders’ equity12.1Debt to equity1.95Fiscal year 2023Cash32.1Total debt12.4Net cash (debt)19.7Shareholders’ equity62.8Debt to equity0.20Fiscal year 2024Cash46.1Total debt0.0Net cash (debt)46.1Shareholders’ equity29.5Debt to equity0.00Fiscal year 2025Cash37.7Shareholders’ equity−122.8
FY2017FY2018FY2019FY2020FY2021FY2022FY2023FY2024FY2025
Cash 0.3 105.2 135.0 486.1 183.4 112.0 32.1 46.1 37.7
Total debt n/a n/a 28.5 28.7 29.1 23.6 12.4 0.0 n/a
Net cash (debt) n/a n/a 106.6 457.3 154.3 88.4 19.7 46.1 n/a
Shareholders’ equity −6.9 −120.1 352.5 320.7 121.5 12.1 62.8 29.5 −122.8
Debt to equity n/a n/a 0.08 0.09 0.24 1.95 0.20 0.00 n/a

In millions of USD, except per-share figures and ratios. Fiscal years, as last filed with the SEC.

Financial statements FY2025 · 10-K

Ratios

Percentages worked out from the filed figures; debt to equity in times. Fiscal years ending December, each column as last filed with the SEC.
Click a line to chart it
Fiscal year FY2017 31 Dec 2017 FY2018 31 Dec 2018 FY2019 31 Dec 2019 FY2020 31 Dec 2020 FY2021 31 Dec 2021 FY2022 31 Dec 2022 FY2023 31 Dec 2023 FY2024 31 Dec 2024 FY2025 31 Dec 2025
Margins
n/a n/a n/a n/a n/a n/a n/a −52.2% −352.2%
n/a n/a n/a n/a n/a n/a n/a −48.5% −351.7%
n/a n/a n/a n/a n/a n/a n/a −49.3% −351.5%
n/a n/a n/a n/a n/a n/a n/a −3.0% −353.5%
Spending
n/a n/a n/a n/a n/a n/a n/a 31.5% 77.6%
n/a n/a n/a n/a n/a n/a n/a 0.0% 0.2%
0.0% n/a n/a n/a n/a n/a n/a n/a n/a
Returns
n/a n/a −51.2% −75.9% −192.7% −1,899.3% −286.5% −191.7% n/a
n/a −61.4% −42.3% −45.1% −68.1% −84.2% −57.6% −17.9% −98.9%
Balance and payout
n/a n/a 0.08 0.09 0.24 1.95 0.20 0.00 n/a
n/a 8.8% 17.4% 40.6% 64.7% 95.6% 79.9% 90.6% 171.3%