Michael Burry is done with Berkshire Hathaway Inc.

(NYSE:BRK), and he's not being subtle about it.

In a Sunday social media post, Burry wrote that his "biggest fear" for the company was always what would happen once Warren Buffett stepped aside: that the successor would be "too old and otherwise not Warren," lacking Buffett's legendary patience for waiting on the perfect "fat pitch." Now, Burry says, that fear has materialized.

"I do not find Berkshire an attractive investment going forward," he wrote.

My biggest fear for Berskhire Hathaway was that when Warren finally stepped down, the successor would be too old and otherwise not Warren, so would not have his patience for the fat pitch.I believe this fear has come true.