SELLAS Life Sciences Group, Inc. (SLS) Cash Flow Statement

NASDAQ: SLSOperating cash, capex, free cash flow and buybacks.

Where SLS’s cash came from and went, 2025

December 31, 2025 · U.S. dollars
Cash from operations
−$28.4M
Capital expenditures
$0
Free cash flow
−$28.4M
Returned to shareholders
—
Change in cash
$57.9M
cash at year-end $71.9M
Shares issued: $23.1MShares issued$23.1MOther financing: $63.2MOther financing$63.2MCash used in operations: $28.4MCash used in operations$28.4M · 33%Added to cash: $57.9MAdded to cash$57.9M · 67%$86.3M
Cash from operations
−$28.4M
Shares issued
+$23.1M
Other financing
+$63.2M
Change in cash
$57.9M

Drawn to scale: where the cash came from and how it was used. Hover for values.

SLS operating cash flow, capex and free cash flow

Operating cash flowCapital expendituresFree cash flowFCF margin (right axis)

SLS cash flow trends, 2016–2025

SELLAS Life Sciences Group, Inc. cash flow trends
MetricTrendThenLatestChange
Operating cash flow−$44.9M2016−$28.4M2025—
Capital expenditures$6,0002016$02025−100.0%
Free cash flow−$44.9M2016−$28.4M2025—
Free cash flow margin−548,263.2%2020−2,830.9%2022+545,432.3 pts
Stock-based compensation$2.3M2016$2.0M2025−1.6%/yr
Dividends paid$487,0002016$02019−100.0%
Share buybacks (net)$02016$31,0002023—
Capex / revenue0.0%2020450.0%2022+450.0 pts

Change is the average annual growth (CAGR) or the difference between the first and latest year.

SLS cash flow by activity

OperatingInvestingFinancingChange in cash

SLS net income vs operating cash flow

Net incomeOperating cash flow

Operating cash flow above net income usually means earnings are backed by cash (depreciation and stock-based pay are non-cash expenses).

SLS cash flow statement

SELLAS Life Sciences Group, Inc. annual cash flow statement
2025202420232022202120202019201820172016
Operating activities
Net income−$26.9M−$30.9M−$37.3M−$41.3M−$20.7M−$16.8M−$19.3M−$27.7M−$23.8M−$11.1M
Depreciation & amortization—$31.5M$37.9M$457,000$1.3M$282,000$17.2M$22.0M$258,000$3,000
Stock-based compensation$2.0M$1.6M$1.4M$1.7M$1.0M$578,000$573,000$395,000$3.2M$2.3M
Change in working capital−$4.1M−$6.6M$3.3M$5.6M−$7.6M$5.6M−$1.1M−$10.0M$6.1M−$24.9M
Other non-cash items$596,999−$31.0M−$36.7M$9.7M$9,000−$110,000−$15.0M−$15.2M$3.3M−$11.2M
Cash from operating activities−$28.4M−$35.4M−$31.4M−$23.8M−$26.0M−$10.4M−$17.6M−$30.4M−$11.0M−$44.9M
Investing activities
Capital expenditures$0$0−$5.5M−$4.5M$0$0$0$0$0−$6,000
Investments (net)—$0−$5.5M−$4.5M$0——$0$1.8M−$1.1M
Acquisitions & other investing——$5.5M$4.5M−$4.5M−$4.5M−$4.5M—$0$6,000
Cash from investing activities——−$5.5M−$4.5M−$4.5M−$4.5M−$4.5M—$1.8M−$1.1M
Financing activities
Dividends paid——————$0−$487,000−$675,000−$487,000
Share repurchases & issuance (net)——−$31,000——$38.1M$19.6M$31.2M$473,000$34.0M
Net borrowing (repayment)———————−$7.6M−$473,000$17.8M
Shares issued$23.1M$46.2M$19.8M$24.0M$9.0M$29.6M$16.0M$31.2M$0$0
Other financing$63.2M$594,000$2.6M$85,000$3.1M−$29.3M−$16.0M−$31.2M$6.2M−$17.0M
Cash from financing activities$86.3M$46.8M$22.3M$24.1M$12.1M$38.4M$19.6M$23.1M$5.5M$34.3M
Summary
Net change in cash$57.9M$11.4M−$14.6M−$4.2M−$13.9M$28.0M$1.9M−$7.3M−$3.6M−$11.6M
Cash at end of period$71.9M$14.0M$2.6M$17.2M$21.5M$35.4M$7.4M$5.5M$2.3M$18.1M
Free cash flow−$28.4M−$35.4M−$36.9M−$28.3M−$26.0M−$10.4M−$17.6M−$30.4M−$11.0M−$44.9M
Free cash flow margin———−2,830.9%−342.4%−548,263.2%————
Capex / revenue———450.0%0.0%0.0%————

Negative numbers are cash paid out. Quarterly columns are labeled by the month the quarter ended. Figures in U.S. dollars as reported; data from EODHD.

SLS cash generation

In fiscal 2025 (ended December 31, 2025), SELLAS Life Sciences generated -$28.4 million of cash from operations and spent $0 on capital expenditures, leaving free cash flow of -$28.4 million. Cash and equivalents rose by $57.9 million over the year.

Related: SLS income statement, SLS balance sheet. See the SLS stock overview for the latest quote and news.

SLS cash flow FAQ

What is SELLAS Life Sciences's free cash flow?

SELLAS Life Sciences's free cash flow was -$28.4 million in fiscal 2025: -$28.4 million of operating cash flow minus $0 of capital expenditures It was -$35.4 million a year earlier..

How much cash does SELLAS Life Sciences generate from operations?

SELLAS Life Sciences generated -$28.4 million of cash from operating activities in fiscal 2025.

Biotechnology: cash flow