Could be the biggest initial public offering by a UK based technology company in years.
The company’s games are played around 30 billion times a month, raking in about £300 million at the beginning of this year - with the IPO, Kind is expected to be worth more than $5 billion.
Zynga, who created Farmville and is the US equivalent of King, filed for IPO in 2011 – however majorly failed with stock prices crumbling and Facebook turning its back on the company.
With this in mind, King will have to fight hard to convince investors that it has what it takes to not go the same way as its rival, even though this could be the biggest IPO from a UK based technology company in years.
The IPO registration technique that it used meant that no financial details had to be shared until 21 days before the IPO began.
This allows the company to finalise negotiations with the SEC (Securities and Exchange Commission) before revealing the final figures to the public.
King gave no comment on the IPO.