Alphabet has been a popular pick among several hedge funds.With the latest round of 13F filings available (forms that must be filed periodically when a hedge fund has at least $100 million of assets under management), investors can see what professional fund managers have been doing. I've looked at a few of them, and one trend seems to be prevailing: Many are buying Alphabet (GOOG 0.72%) (GOOGL 0.83%).Among the funds (and the billionaires that run them) adding to their Alphabet positions were Bridgewater As ...