The Aptus Therapeutics-backed neurodegenerative disorder drug developer has filed for an $80.5m initial public offering on Nasdaq after raising roughly $30m in VC funding.

Prexton Therapeutics, a Parkinson's disease-focused spinoff of Merck Group that had raised $41m in funding, has agreed to an acquisition that could reach more than $1.1bn in size.

The Alphabet and Dell-backed cloud security software provider saw its stock more than double on the first day of trading and now has a market cap of almost $3.9bn.

Cloud security software developer Evident.io, which had raised about $49m from investors including GV, has agreed to an acquisition by Palo Alto Networks for $300m in cash.

Talks between the companies are reportedly at a critical stage and could involve Walmart buying shares from corporate investor SoftBank at a $20bn valuation.

Cancer immunotherapy developer Arcus Biosciences will float at the top of its range, scoring exits for Alphabet, Novartis, Celgene and Taiho.

Spa and salon management software producer Booker Software had raised $77m across three rounds from investors including First Data Ventures.

Ovo has acquired the mobile video technology developer for just over $10m, with Incoming backers Intel, Citrix and Warner Brothers getting stakes in Ovo.

GE Ventures is set to exit document collaboration platform Octiv in an acquisition of undisclosed size by Conga.

Rocket Internet-backed short-term accomodation provider Zen Rooms is in talks with investors for a sale as its capital reserves reportedly dwindle