Grove Street Advisors LLC

10/15/2026 | Press release | Archived content

Versant Ventures exits Firefly Bio to Johnson & Johnson

Firefly Bio is a biotechnology company developing the Firelink degrader antibody conjugate platform, designed to deliver targeted protein degraders directly to cancer cells to treat difficult-to-address solid tumors.

Johnson & Johnson acquired Firefly Bio for $1 billion in cash, gaining a novel technology intended to selectively target KRAS-driven cancers and other hard-to-treat malignancies while preserving healthy tissue.

GroveStreet first became a Versant Ventures LP in 2018. Read more here.

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Grove Street Advisors LLC published this content on October 15, 2026, and is solely responsible for the information contained herein. Distributed via Public Technologies (PUBT), unedited and unaltered, on November 11, 2026 at 18:11 UTC. If you believe the information included in the content is inaccurate or outdated and requires editing or removal, please contact us at [email protected]