He's also targeted Twitter's work-from home policy, having once called for the company's headquarters to be turned into a “homeless shelter” because, he said, so few employees actually worked there.
Musk undoubtedly also has plenty of fans in the Twitter workforce.
It's not clear if this week's meeting means that the two sides have come closer together on resolving their issues. Shares of Twitter have been trading well below the $54.20 per share that Musk has offered amid doubts on Wall Street that the deal will be consummated.
Shares of Twitter Inc. rose almost 3% before the opening bell Tuesday to $38.02.
Multiple outlets reported last week that Twitter planned to offer Musk access to its "firehose" of raw data on hundreds of millions of daily tweets.