Latest: Q3 2026 · from the cash-flow statements filed with the SEC
Free cash flow−$26.0M in Q3 2026 · −$79.7M over twelve months
Operating cash flow−$26.0M
Free cash flow−$26.0M
Analysis
In Q3 2026, C4 Therapeutics generated −$26.0M of operating cash flow. That is $5.7M more than in Q3 2025 (−$31.6M).
Over the twelve months to Sep 30, 2026, operating cash flow was −$79.6M; the largest uses were other investing ($99.9M), operating cash flow ($79.6M), buybacks ($253K); besides operations, cash came from other financing ($152M), shares issued ($1.0M); the cash balance fell by $26.4M.
Operating cash flow was −$26.0M against net income of −$21.8M. The largest differences: deferred revenue −$7.1M, stock-based pay +$3.0M, accrued liabilities +$357K.
Free cash flow
Operating cash flow less capital spending.Latest (Q3 2026): Operating cash flow −$26.0M, Capital spending $0.
Capital allocation, year by year
Over these 5 years operating cash flow totalled −$464M; the largest uses were operating cash flow ($464M) and capital spending ($9.3M). Cash-flow statements as filed.
Cash runway and the debt wall
Cash & investments$32.4M
Debtnone
Net cash$32.4M
Cash runway5 months
C4 Therapeutics is burning cash: its operations consume cash, a free cash flow of −$79.7M a year at the current rate against $32.4M of cash and investments: a runway of about 5 months before any new financing.
Where the cash came from and went
From profit to cash
Non-cash charges are added back; money tied up in receivables or inventory is subtracted.
Every quarter
Quarter
Operating cash flow
Capital spending
Buybacks
Shares issued
Cash drawn (+) / kept (−)
Free cash flow
Q3 2026
−$26.0M
—
−$39K
$225K
$46.2M
−$26.0M
Q2 2026
−$1.6M
−$37K
—
$176K
−$17.3M
−$1.6M
Q1 2026
−$29.9M
−$64K
−$200K
$605K
$13.3M
−$30.0M
Q4 2025
−$22.1M
−$11K
−$14K
—
−$15.8M
−$22.2M
Q3 2025
−$31.2M
−$411K
−$24K
$7.6M
$19.3M
−$31.6M
Q2 2025
−$12.1M
−$185K
—
—
−$26.9M
−$12.2M
Q1 2025
−$33.3M
—
−$155K
—
$4.2M
−$33.3M
Q4 2024
−$17.9M
$4K
—
$111K
$4.2M
−$17.9M
C4 Therapeutics: income statement and cash flow
C4 Therapeutics, Q3 2026: revenue $8.5M (-25% year over year), operating margin -290.5%. The chart follows the revenue to costs, profit and cash.
Read automatically from the company’s XBRL cash-flow statements; quarterly figures for the fourth quarter are the year less the first three. Errors are possible. Not investment advice.