Russian internet and ride-hail giant Yandex has acquired Uber’s stake in its Self-Driving Group (SDG), as well as Uber’s indirect interest in Yandex.Eats, Yandex.Lavka and Yandex.Delivery. The total cost of the deal came to $1 billion, giving the Russian company 100% ownership over all four businesses.

Yandex SDG is an autonomous technology spinout from MLU B.V., the ride-hailing and food delivery joint venture Yandex formed with Uber in 2018 by merging Yandex.Taxi and Uber’s Russian operations. At the time, Uber had a 36.6% stake in the new company. Last year, when SDG was spun out into a separate business, Uber was left with an 18.2% stake in the company, which has just been bought out by Yandex. Yandex also purchased Uber’s 33.5% collective interest in Yandex’s food delivery service, last-mile logistics service and 15-minute convenience store delivery service.

Back in 2019, Yandex and Uber were reportedly considering an IPO for their JV, which Morgan Stanley estimated to be valued at around $7.7 billion. Yandex says autonomous driving technology is “highly synergistic to the Yandex ecosystem, which includes ride-hailing, e-commerce and food-tech businesses.” It makes sense that the company would want to control all of that potential growth. Uber, which reported a Q2 loss of $509 million before EBITDA this year, might be looking to make a lucrative exit and refocus its priorities closer to home.

“This acquisition will enable Yandex to further increase its capacity for strategic management and flexibility when it comes to self-driving technology,” a Yandex spokesperson told TechCrunch. “It will unlock further growth potential for both Yandex and Yandex SDG, creating new sources of value for shareholders.”

The acquisitions are part of a larger restructuring of the MLU B.V. and Yandex SDG joint ventures, according to Uber’s SEC filing on Monday. They will happen in two stages. Stage 1, which is expected to close by the end of Q3 this year, will give Yandex a 4.5% interest in the newly restructured MLU, which will focus on mobility businesses like ride-hailing and car-sharing. This gives Yandex a total of 71% ownership in the JV, 2.8% of which is reserved for an employee equity incentive program. Uber’s total 18.2% stake in SDG is also expected to be sold during the first stage.

Stage 2, which is expected to close by the end of this year, includes the demerger of Yandex.Eats, Yandex.Lavka and Yandex.Delivery from MLU and subsequent acquisition of Uber’s interest in these businesses.

Yandex will also receive a two-year American call option to acquire the rest of Uber’s interest in MLU at a more or less fixed price of $1.8 billion, depending on agreed increases over the option period. This number will increase to $2 billion if exercised in 2023. The Russian company will also continue to use the Uber brand exclusively in Russia and other countries until August 2030.

Yandex will also get an extension of the current license for the exclusive right to use the Uber brand in Russia and certain other countries until August 2030, assuming the exercise of the option. Yandex’s stock was up 5.16% on Tuesday at market close.