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Korro Bio (KRRO) Q3 2025 earnings results (third quarter 2025)

10-Q filed Nov 12, 2025

Korro Bio (KRRO) reported revenue of $1.1M for the third quarter 2025 (Q3 2025) and -25% from the quarter before.

Revenue$1.1M
Year over year—
Quarter over quarter-25%
Operating margin—
Net earnings−$18.1M

Korro Bio, Q3 2025: revenue $1.1M, net loss $18.1M, operating cash flow −$17.2M. The chart follows the revenue to costs, profit and cash.

Q3 2025AmountQ/QY/Y
Revenue$1.1M-25%—
Operating profit−$19.2M——
Net earnings−$18.1M——
Operating cash flow−$17.2M——

What changed

Revenue was $1.1M in Q3 2025, down 25% from the previous quarter.

Operating costs exceeded revenue by $19.2M, an operating margin of -1764.9%. The quarter ended with a net loss of $18.1M, narrower than the previous quarter's $25.8M loss.

Operating cash flow was −$17.2M. Non-cash charges added back $1.2M of depreciation and $1.8M of share-based compensation. Working capital and other items used $2.1M. Capital expenditures of $175K exceeded it, leaving free cash flow of −$17.4M.

Questions

What was Korro Bio's revenue in the third quarter 2025?

Korro Bio (KRRO) reported revenue of $1.1M for the third quarter 2025 (Q3 2025) and -25% from the quarter before.

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Source: Korro Bio 10-Q on SEC EDGAR.