Check out the companies making the biggest moves in premarket trading.

Toyota — Shares of the Japanese automaker jumped about 5% afterward. shareholders re-elected chairman Akio Toyoda to the board of directorsin the broad support of company management and the new strategy of electric vehicles.

Logitech International — Shares of the computer accessories company fell more than 10% after Logitech said CEO Bracken Darrell is leaving for an outside opportunity. Citi downgraded the stock from buy to neutral, saying Logitech needs to provide more clarity on its long-term plans following the leadership change.

Vodafone — The mobile network added nearly 3% in premarket trading after Vodafone and CK Hutchison agreed to merge their UK businesses.

Advanced Micro Devices — The chip maker gained 3% in pre-sales. On Tuesday, Advanced Micro Devices said it would begin shipping the most advanced GPU for artificial intelligence to some customers later this year. Amazon Web Services is considering using new chips, This was reported by the Reuters agency Wednesday.

UnitedHealth — Shares fell nearly 6% premarket after comments by UnitedHealth Chief Financial Officer John Rex on a conference call this week that non-urgent surgery volumes increased in the second quarter. Other managed care companies also fell, with Humana down 7.5% and Cigna down 3.6%.

Lumen Technologies — The share rose 11%, one day after gaining 16% on the Lumen news a new ecosystem of networking in partnership with Google and Microsoft.

Shell — European crude stocks rose 2.3% after Shell raised its dividends and share buybacks and said it would keep them oil production stable by 2030.

SoFi technology — Presale shares added 3.25%. BTIG named SoFi a top choice in the fintech sector when student loan repayments resume. The Wall Street firm’s $14 price target represents a more than 46% upside from Tuesday’s close.

— CNBC’s Hakyung Kim and Jesse Pound contributed reporting.