According to this regulatory filing with the SEC, and others, he did, as I said a smoke screen to distract from the fact he most certainly did crash the stock as you suggest. A total sale of about $8.5B, but the total Twitter purchase price was $44B and that difference is where you are likely getting the idea of the loan against his remaining stock.

https://www.sec.gov/Archives/edgar/data/0001494730/000089924...