
Is C4 Therapeutics (CCCC) stock Halal?
Verdict for C4 Therapeutics (CCCC): not Shariah compliant (FAIL). Screened October 2026 under AAOIFI Shariah Standard No. 21. Business activity: pass. Non-permissible income: pass. Interest-bearing investments: fail. Interest-bearing debt: pass. Preference shares: pass. Dividend purification factor: not applicable. Next review: November 2026.
C4 Therapeutics is a biotechnology company focused on developing targeted protein degradation therapies to treat a variety of diseases, primarily cancer. The company's core mission is to harness their proprietary technology, known as the TORPEDO platform, to create small molecule drugs that induce the degradation of disease-causing proteins. By eliminating these proteins, C4 Therapeutics aims to offer novel treatments with improved efficacy over traditional methods. For Muslim investors, though, the most pressing question is simpler: is C4 Therapeutics a Halal investment?
Is C4 Therapeutics Shariah compliant?
No. In the October 2026 screening C4 Therapeutics (CCCC) does not pass AAOIFI screening: it fails the interest-bearing investments screen. Technology companies rarely fail AAOIFI screening on what they sell. Software, hardware and digital services are permissible business activities, so for a company like C4 Therapeutics the Shariah question moves to the balance sheet: how much of its market value sits in interest bearing debt, how much of its cash earns Riba in conventional deposits, and whether incidental income from impermissible sources creeps past 5% of revenue. These are exactly the ratios AAOIFI Shariah Standard No. 21 polices, and they move every month with the share price.
Does C4 Therapeutics pass the business activity test?
The activity screen is only part of the picture this month: C4 Therapeutics currently fails the interest-bearing investments screen, so the overall verdict is not compliant regardless of the business itself. The watch item for technology names is incidental: cash returns and platform content can carry impermissible elements, which AAOIFI tolerates only below the thresholds.
Is C4 Therapeutics' income Halal?
Yes, within AAOIFI's tolerance. C4 Therapeutics' income from non-permissible sources stays below 5% of revenue in the October 2026 screening.
Does C4 Therapeutics meet AAOIFI's debt and investment ratio requirements?
Not in full. Interest bearing investments currently exceed the 30% cap, measured against a market capitalisation of $466M (market data as of 1 October 2026), while the other ratio stays within it. One breach is enough to fail the screening; the ratios are reassessed monthly under our Shariah Supervisory Board.
Why do other halal screeners show a different verdict for C4 Therapeutics?
Screeners can disagree without either being wrong. AAOIFI Shariah Standard No. 21, which Tabadulat applies, measures interest bearing debt and investments against market capitalisation with a 30% ceiling. MSCI and FTSE measure them against total assets with a 33% ceiling, and S&P and Dow Jones Islamic use a multi year average of market capitalisation. Data dates differ too, because each provider reads filings and prices on its own schedule. The same company can therefore pass one standard and fail another in the same month. Tabadulat publishes one answer, the AAOIFI result as of October 2026, and re-screens it every month.
Tabadulat is an ADGM regulated brokerage whose license covers Shari'a Compliant Regulated Activities, as the FSRA permission names them. New to the terminology? Gharar and Maysir, Sukuk, Zakat and purification are all explained in plain English.
New to the screening method? Read Why a Halal Stock Screener Matters for Halal Investing











