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Jane Street

Active VC

Portfolio Active

Deal flow

$605M

2 rounds

Unicorns

≥ $1B valuation

Founded

—

Latest

Feb 2026

MatX

About Jane Street

Venture capital firm tracking 2 AI investments, with focus on AI Testing & QA and US startups. Total tracked deal flow: $605M.

Chips built from the ground up for frontier large language models

Feb 24, 2026 Series B $500M MatX

Series A $105M Antithesis