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Here’s what you need to know today in startup and venture news, updated by the Crunchbase News staff throughout the day to keep you in the know.

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Darktrace shares soar in London IPO

Shares of British cybersecurity company surged in first-day trading in London Friday, with the stock up as much as 43 percent in initial trades.

The Cambridge, U.K.-based company priced shares for its offering before trading commenced at a valuation of around $2.4 billion.

Founded in 2013, Darktrace uses AI to detect and respond to threats in companies’ IT systems. Previously, the company raised at least $230.5 million in known funding, per Crunchbase data.

— Joanna Glasner

Funding rounds

Mux raises $105M for video streaming: Video platform has raised a $105 million Series D, bringing its valuation above the $1 billion mark. Mux’s technology helps developers build live and and on-demand video streams, something that became more popular during the COVID-19 pandemic with many people staying home. The round, which was led by , brings Mux’s total funding to $175 million.

–Sophia Kunthara

PortalOne picks up $15M for hybrid gaming: , a startup developing what it describes as “hybrid games,” combining gaming and TV, raised $15 million in a seed round backed by a long list of investors, including , , co-founder , and . Founded in 2018, the company, which operates offices in Oslo, is looking to popularize a new category of entertainment that mixes games with live shows that are embedded directly inside the games.

OnLume Surgical raises $7M Series A:聽Madison, Wisconsin-based , a medical device company developing novel imaging systems for use during surgery, the completion of its Series A funding to assist its plans for a commercial launch.

— Joanna Glasner

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