Acquisition of Marimo
Company: CoreWeave
The claim, verbatim
CoreWeave acquired Marimo to unify the generative AI developer workflow with its open-source, AI-native notebook for Python and data-centric AI development
Source (primary)
coreweave 8-K exhibit (coreweave4q25earningspress.htm) (SEC EDGAR (8-K Ex), press_release)
View cached copy (2026-09-13)Live source ↗
Quote: “Acquired Marimo to unify the generative AI developer workflow with its open-source, AI-native notebook for Python and data-centric AI development”
How we checked this
Checked on September 21, 2026. The cited source supports every part of this claim.
The document states the Marimo acquisition and rationale as claimed.
Confirmed in the source:
- CoreWeave acquired Marimo
- The acquisition unifies the generative AI developer workflow with its open-source, AI-native notebook for Python and data-centric AI development
What we did: Read our cached copy of SEC EDGAR (8-K Ex) (https://www.sec.gov/Archives/edgar/data/1769628/000176962826000094/coreweave4q25earningspress.htm) in full (24,552 characters, retrieved September 13, 2026) and checked each assertion in the claim against it.
Additional evidence
confirms coreweave 8-K exhibit (coreweave4q25earningspress.htm)
Quote: “Acquired Marimo to unify the generative AI developer workflow with its open-source, AI-native notebook for Python and data-centric AI development”