Renaissance Technologies, AKA RenTech, one of the biggest hedge funds (and the most successful) increased it’s AMC holdings in the third quarter of 2021, according to it’s own SEC filings.

The quantitative hedge fund, founded by a former NSA codebreaker and MIT math professor Jim Simons, increased its AMC position from 1.8 million shares to 2.5 million shares in the last quarter.