EDIT: This is the story: https://www.cnbc.com/video/2021/01/27/melvin-capital-sells-o...
It's full of plausible deniability phrases like "from what I understand" and it's very much a game of telephone. They could easily say "when I meant we were out of the stock, I meant that we had covered some of our positions" or similar.
I can't find a non-hearsay source anywhere, neither written nor in the form of a recorded interview.