Last month, Enerkem amended its regulatory filing and said it would sell 7.25 million shares at between $17 and $19 each.

Last month, Luca set the upper limit of its flotation range at $110.5m.

Biopharmaceutical company Clovis Oncology, backed by Pfizer, sells the shares following its initial public offering in November last year.

DBV Technologies, a France-based allergy treatment company, which was the first deal done by Shire Therapeutics' corporate venturing unit, also secures its first portfolio company flotation in Paris.

Marc Samwer, who headed Groupon's international operations and owns part of the company along with his brother Oliver, leaves during a torrid month for the company.

John Woolard, Alstom-backed Brightsource's chief executive, says: "The continued market and economic volatility are not optimal conditions for an IPO."

Envivio, a video delivery system spin-off which postponed its float last year, sets the range of the initial public offering.

Biopharmaceutical company Merrimack, backed by Fidelity, raises $100m on Nasdaq.

The company takes in a $50m round at an $800m valuation from backers including SAP, Toshiba and Juniper Networks, when it had reportedly been slated for a flotation in the first quarter or this month.

The search engine company raises $47,5m from gaming company Zynga's secondary offering as its prolific deal-making continues.