New York — Tesla’s executive turnover is higher than other Silicon Valley-based technology companies and is particularly acute among those reporting to CEO Elon Musk, according to a Bernstein analyst.

The electric-car maker has been turning over about 27% of its top executives annually, Bernstein analyst Toni Sacconaghi said. That’s the highest rate among seven companies that Sacconaghi benchmarked Tesla against, though Snap and Lyft have had similar levels of turnover, he wrote in a report Wednesday...