Conichi has been purchased by strategic investor HRS and will be integrated into the travel booking platform's business division.

R/GA is exiting drone workflow automation platform Hangar Technology, which has been purchased by AirMap for an undisclosed sum.

Frequency Therapeutics, a regenerative medicine developer advancing MIT and Harvard research, has set the range for an initial public offering that will raise $107m if it floats at the high end.

Facebook has paid a reported $500m to $1bn to acquire neural interface technology developer Ctrl-Labs, which had raised $67m from investors including GV and Alexa Fund.

Regnerative medicine developer Frequency Therapeutics has set the range for an initial public offering that will raise $107m if it floats at the high end.

Unity Technologies has bought game development services provider DeltaDNA, which had raised at least $4.3m from investors including STV.

HP has paid an undisclosed sum for anti-malware software producer Bromium, which had raised $110m of funding from investors including Intel Capital.

Creditshelf is buying business financing tool developer Valendo, which has raised an undisclosed amount from investors such as ProSiebenSat.1 Accelerator.

CapitalG-backed Airbnb, valued at $31bn as of 2017, has declared it plans to list its shares next year, and looks likely to choose a direct listing.

Oxford spinout Semmle has been acquired by GitHub, a subsidiary of Microsoft, providing exits to investors including Accel that had supplied $31m in funding.