A company that specializes in selling goods and services to customers through websites and apps has agreed to a $4.4 billion deal to buy the company that made the popular Craigslist platform.

The deal is expected to close in the third quarter, according to a person familiar with the matter, with eBay and PayPal expected to join as the deal’s principal creditors.

eBay said in a statement that the transaction was the culmination of years of work, including in-house and external investigations and other research.

The deal includes $1.2 billion in cash, $1 billion in stock and a 30 percent stake in eBay Inc. It is the largest acquisition in eBay’s history, according for the first time to Bloomberg, and it will mark the third time it has been completed, following the acquisition of an online store last year and a deal for its digital media business in 2015.

The company that eBay bought for $1 in 1998 is known as Craigslist.

It was founded by former Craigslist employees in 1997, and the company’s founder, Craig Newmark, said it was the only way to get a lot of people online and get people to find what they were looking for.

Its popularity has grown since then, and its market share has more than tripled since it was founded.

The company now operates over 4 million listings, according the company.

The new eBay, or EMEA, will have about 4.6 million customers and roughly 3.4 million sellers, and will operate a marketplace for sellers and buyers.

It will offer both direct-to-consumer and online services, and eBay will also sell products and services through the platform.

The deal is valued at about $4 billion.

The acquisition of Craigslist marks the latest in a series of deals for the online ad-selling platform, which was valued at $9 billion in 2015, according data compiled by Bloomberg.

Craigslist also will have a market share of about 12 percent, according, according Bloomberg.