Uber Technologies Inc. filed a confidential registration for an initial public offering with the US Securities and Exchange Administration, according to media reports.

The human cloud/ride-sharing firm filed the paperwork on Thursday, the same day as its competitor, Lyft Inc.

Staffing Industry Analysts ranks Uber as the largest B2C human cloud platform with estimated gross spend of $37.3 billion in 2017; Lyft ranks third with $5.26 billion.

The Wall Street Journal first reported the news Friday evening, citing people familiar with the matter as its source. The filing indicates Uber could go public as soon as the first quarter, the Journal reported. However, Uber Chief Executive Dara Khosrowshahi has previously said he expected to seek a debut in next year’s second half.

Uber last month released financials that show revenue growth slowed and its loss exceeded $1 billion in the third quarter. Revenue growth of 38% in the third quarter was almost half of what the growth rate was six months earlier.

Reuters reported Uber's most recent valuation was $76 billion and could be worth $120 billion in an IPO. Its listing next year would be the largest in what is expected to be a string of public debuts by highly valued Silicon Valley companies, including apartment-renting company Airbnb and workplace messaging firm Slack.