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Regenxbio vs C4 Therapeutics: RGNX and CCCC compared

Regenxbio is the larger company: $9.2M of revenue in its latest quarter (Q3 2026) against $8.5M for C4 Therapeutics (Q3 2026). C4 Therapeutics is growing faster (-25% against -69% a year earlier). C4 Therapeutics is more profitable, with an operating margin of -290.5% against -387.8%.

Regenxbio vs C4 Therapeutics, latest quarterRegenxbio vs C4 Therapeutics, latest quarterRegenxbio (RGNX)C4 Therapeutics (CCCC)Revenue$9.2M$8.5MRevenue growth, Y/Y-69%-25%Operating margin-387.8%-290.5%Net margin-444.6%-257.9%

Where the money goes: RGNX and CCCC

Regenxbio (RGNX) · Q3 2026

Regenxbio, Q3 2026: revenue $9.2M (-69% year over year), operating margin -387.8%, net loss $40.7M, operating cash flow $38.6M. The chart follows the revenue to costs, profit and cash.

C4 Therapeutics (CCCC) · Q3 2026

C4 Therapeutics, Q3 2026: revenue $8.5M (-25% year over year), operating margin -290.5%, net loss $21.8M, operating cash flow −$26.0M. The chart follows the revenue to costs, profit and cash.

Regenxbio revenue by segment, Q3 2026Regenxbio revenue by segment, Q3 2026License and Service$5.2MService$3.9M
Regenxbio (RGNX)C4 Therapeutics (CCCC)
Latest quarterQ3 2026Q3 2026
Revenue$9.2M$8.5M
Revenue growth, Y/Y-69%-25%
Operating margin-387.8%-290.5%
Net earnings−$40.7M−$21.8M
Net margin-444.6%-257.9%
Operating cash flow$38.6M−$26.0M
Free cash flow$38.4M—

Where the revenue comes from

Regenxbio

Questions

Which is bigger, Regenxbio or C4 Therapeutics?

Regenxbio is the larger company: $9.2M of revenue in its latest quarter (Q3 2026) against $8.5M for C4 Therapeutics (Q3 2026).

Is Regenxbio or C4 Therapeutics growing faster?

C4 Therapeutics is growing faster (-25% against -69% a year earlier).

Which is more profitable, Regenxbio or C4 Therapeutics?

C4 Therapeutics is more profitable, with an operating margin of -290.5% against -387.8%.

More: Regenxbio earnings · how Regenxbio makes money · C4 Therapeutics earnings · how C4 Therapeutics makes money

From the companies' latest 10-Q, 10-K or earnings release (10-Q filed Nov 5, 2026; 10-Q filed Nov 5, 2026). Fiscal quarters can end on different dates. Not investment advice.