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Forensic Analysis · Pharmaceuticals & Biotechnology · as of Nov 9, 2026

Korro Bio, Inc. (KRRO)

A forensic read on Korro Bio, Inc. built from its complete SEC filings — financial-health screens, earnings quality, red flags and a price-aware rating. Reproducible math, not opinion.

D · Weak — demands caution
Forensic grade
Distress
Financial health
-13.3
Distress distance
1
Forensic signals
-110.7%
ROE
181.5%
Revenue growth

This free snapshot doesn't read filing or proxy text, so the auditor-quality and governance checks that can lower a grade were not evaluated (auditor quality, say on pay, board independence, going concern). Those checks only ever lower a grade, so the full analysis can land below the grade above but never above it — treat it as the most favourable reading, not the settled one.

Korro Bio, Inc. earns a D (Weak — demands caution) forensic quality grade, and its balance-sheet distress test reads -13.3, placing it in the Distress zone. 1 forensic signal was flagged in its latest SEC filings, led by stock-based comp load.

What the filings flag

120% of rev
FY2025
Stock-based comp load. Stock-based compensation ran 120% of revenue in FY2025 — about $0.81 per diluted share. No cash left the business to pay it, which is why operating cash flow adds it back. Net of repurchases the diluted count still rose about 5.3% a year across FY2024–FY2025, above the level at which the count is a material claim on a stake, and only one year's change is on file — enough to state what a holder gave up, not enough to say whether the rate is climbing or coming down. Stock compensation is one source of that issuance; acquisition consideration, equity raises, convertibles and other employee plans also net into the count, and these figures do not separate them.

Key fundamentals

Latest Revenue$6.4M
Revenue Growth YoY+181.5%
Net Margin-1834.5%
Free Cash Flow-$79.1M
Return on Equity-110.7%

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Data from SEC EDGAR public filings · metrics as of Nov 9, 2026. Forensic signals flag probability, not certainty.

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