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Sequoia on Pulse

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The full thread of our Sequoia coverage — a running record of every development we've tracked, with the VC take on each.

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Jul 10, 2026
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Coverage Timeline

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  1. FUNDINGChai Discovery Raises $400M at $3.8B for AI Drug Design→
  2. FUNDINGProbook Raises $40M to Be the AI OS for Plumbers→

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FUNDING$400M at $3.8B

Chai Discovery Raises $400M at $3.8B for AI Drug Design

Life-sciences AI startup Chai Discovery raised a $400 million Series C at a $3.8 billion valuation led by Index Ventures, Sequoia, Dimension and Kleiner Perkins, one of the largest rounds yet for AI-driven drug and molecule design.

Jul 17, 2026
FUNDING$40M total ($34M Series A + $6M seed)

Probook Raises $40M to Be the AI OS for Plumbers

Probook raised $40 million across a Series A and seed round, backed by Andreessen Horowitz and Sequoia, to build an AI operating system that runs scheduling, dispatch and customer calls for plumbing, electrical and HVAC businesses.

Jul 10, 2026