HubSpot, which is backed by investors including Google and Salesforce, plans to float at a price between $19 and $21 a share.

Rocket Internet followed compatriot Zalando on to the Frankfurt Stock Exchange today at the top of its range, only to see its shares subsequently fall.

Tencent and CyberAgent both recorded hefty exits as online messaging service Kakao joined forces with internet portal Daum in a reverse merger.

The online fashion retailer, backed by Anders Holch Povlsen, Holtzbrinck and Tengelmann, floated near the top of its range and could raise up to $765m before the IPO closes.

Novo, Roche, GlaxoSmithKline and Novartis, all of which participated in a $41m round for Alios in April, exited the pharmaceutical company, which was bought by Johnson & Johnson.

The pharmaceutical company, backed by Allergan and Boehringer Ingelheim, raised the cash after $109m of equity funding.

Hearst and SingTel both exited after the mobile advertising platform was acquired by Millennial Media for $107.5m.

Parkinson's disease treatment company Civitas has been bought by Acorda for $525m, weeks after it raised a $55m series C round and filed for an IPO.

WPP-backed analytics software company Visible Technologies has been acquired by public relations technology firms Vocus and Cision after raising $30m in funding.

The Johnson & Johnson-backed Switzerland-based protein developer is looking to go public after raising almost $60m in equity funding.