Sierra Bancorp Faces Stock Downgrade Amid Insider Selling Sierra Bancorp has been downgraded to a "hold" rating by StockNews.com, reflecting cautious sentiment. Meanwhile, insider activity has drawn attention, with key executives selling significant shares. For instance, EVP Michael Olague sold 3,563 shares, reducing his stake by over 22%. The stock recently traded at $28.90, down from its 50-day average.123