Electric carmaker Tesla, facing pressure on a number of fronts, is asking shareholders for a show of support for chief executive Elon Musk.
The firm has called a special meeting this month for investors to vote on a 10-year compensation plan for Mr Musk.
Under the plan, Mr Musk could receive stock awards worth an estimated $2.6bn - among the largest in US history.
The grants would only be distributed if the firm, which has made consistent losses, hits certain milestones.
Major holders of Tesla stock, including investment firms Baillie Gifford and T Rowe Price, have said they intend to support the pay plan, providing a vote of confidence.
But shareholder advisory groups have cautioned against the proposal, saying it is too generous.
The vote comes as Tesla confronts several years of mounting questions about its operations.
'Brand under fire'
Investors are impatient about delays in the production of Model 3 cars, a new model that is supposed to target a more mass-market clientele.
US regulators have raised questions about the firm's financial disclosures, while some shareholders have complained about the board's independence and its 2016 decision to buy SolarCity, a money-losing solar power company backed by Mr Musk and led by his cousin.
Outside the financial world, people have voiced concerns about the firm's autopilot features and workers have spoken out about abrupt dismissals and a discriminatory work environment.
Tesla has said the claims are without merit and its high public profile makes it a target. Several of the shareholder lawsuits have been dismissed.
But financial analysts are sounding warnings that the firm is losing ground against competitors. Share prices have sunk since June, though they remain about 25% higher than a year ago.
Surveys suggest the public remains enthusiastic about Tesla, though the issues may be having an effect.
A Harris Poll ranked the company's reputation third out of 100 American firms. But recent analysis by Netbase, which tracks social media posts, found Tesla compared poorly to other luxury brands.