Annexon, Inc. (ANNX) Cash Flow Statement

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

Where ANNX’s cash came from and went, 2025

December 31, 2025 · U.S. dollars
Cash from operations
−$186.4M
Capital expenditures
$137,000
Free cash flow
−$186.5M
Returned to shareholders
$1.9M
Change in cash
$112.6M
cash at year-end $163.1M
Investments (net): $190.2MInvestments (net)$190.2MShares issued: $109.6MShares issued$109.6MOther financing: $1.2MOther financing$1.2MCash used in operations: $186.4MCash used in operations$186.4M · 62%Added to cash: $112.6MAdded to cash$112.6M · 37%Dividends, Capital expenditures: $2.0MOther uses$2.0M · 1%$300.9M
Cash from operations
−$186.4M
Investments (net)
+$190.2M
Dividends
−$1.9M
Shares issued
+$109.6M
Other financing
+$1.2M
Change in cash
$112.6M

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

ANNX operating cash flow, capex and free cash flow

Operating cash flowCapital expendituresFree cash flowFCF margin (right axis)

ANNX cash flow trends, 2017–2025

Annexon, Inc. cash flow trends
MetricTrendThenLatestChange
Operating cash flow−$19.3M2017−$186.4M2025—
Capital expenditures$567,0002017$137,0002025−16.3%/yr
Free cash flow−$19.8M2017−$186.5M2025—
Stock-based compensation$401,0002017$16.4M2025+59.1%/yr
Dividends paid$102.5M2020$1.9M2025−55.2%/yr
Share buybacks (net)$02017$02022—

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

ANNX cash flow by activity

OperatingInvestingFinancingChange in cash

ANNX 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).

ANNX cash flow statement

Annexon, Inc. annual cash flow statement
202520242023202220212020201920182017
Operating activities
Net income−$206.7M−$138.2M−$134.2M−$141.9M−$130.3M−$63.4M−$37.2M−$18.3M−$18.7M
Depreciation & amortization$2.2M$2.1M$2.1M$2.1M$2.1M$667,000$493,000$488,000$271,000
Stock-based compensation$16.4M$19.4M$18.2M$18.5M$16.3M$4.9M$2.0M$408,000$401,000
Change in working capital$4.2M$6.4M−$5.8M$3.7M$3.3M$4.7M$625,000$478,000−$1.2M
Other non-cash items−$2.5M−$7.8M−$1.4M$1.3M$2.5M$53,000$5.7M−$260,000$0
Cash from operating activities−$186.4M−$118.0M−$121.1M−$116.3M−$106.1M−$53.1M−$28.4M−$17.2M−$19.3M
Investing activities
Capital expenditures−$137,000−$15,000−$193,000−$6.5M−$1.7M−$464,000−$267,000−$17,000−$567,000
Investments (net)$190.2M−$218.8M$29.3M$65.0M−$86.6M−$83.2M−$267,000−$17,000−$82.7M
Acquisitions & other investing$0$15,000$41.6M$0$0$464,000$267,000$17,000$82.7M
Cash from investing activities$190.1M−$218.8M$70.7M$58.4M−$88.2M−$83.2M−$267,000−$17,000−$567,000
Financing activities
Dividends paid−$1.9M————−$102.5M———
Share repurchases & issuance (net)———$121.4M$1.8M−$5.2M$30.0M$58.5M$42,000
Net borrowing (repayment)————$0————
Shares issued$109.6M$161.9M$17.5M$130.5M$0$369.0M$30.0M$58.3M$0
Other financing$1.2M−$665,000$118.0M−$129.0M$0$99.6M−$31.6M−$58.3M$0
Cash from financing activities$108.9M$161.2M$135.5M$122.9M$1.8M$360.9M$28.4M$58.5M$42,000
Summary
Net change in cash$112.6M−$175.6M$85.1M$65.0M−$193.7M$224.6M−$244,000$41.2M−$19.8M
Cash at end of period$163.1M$50.5M$226.1M$141.1M$74.8M$268.6M$43.9M$44.2M$3.0M
Free cash flow−$186.5M−$118.0M−$121.3M−$122.8M−$107.8M−$53.6M−$28.6M−$17.2M−$19.8M

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.

ANNX cash generation

In fiscal 2025 (ended December 31, 2025), Annexon generated -$186.4 million of cash from operations and spent $0.1 million on capital expenditures, leaving free cash flow of -$186.5 million. It returned $1.9 million to shareholders through dividends ($1.9 million) and net share buybacks ($0). Cash and equivalents rose by $112.6 million over the year.

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

ANNX cash flow FAQ

What is Annexon's free cash flow?

Annexon's free cash flow was -$186.5 million in fiscal 2025: -$186.4 million of operating cash flow minus $0.1 million of capital expenditures It was -$118.0 million a year earlier..

How much cash does Annexon generate from operations?

Annexon generated -$186.4 million of cash from operating activities in fiscal 2025.

How much does Annexon spend on capital expenditures?

Annexon spent $0.1 million on capital expenditures in fiscal 2025, compared with $0.0 million the year before.

How much does Annexon pay in dividends?

Annexon paid $1.9 million in dividends in fiscal 2025.

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