Institutional investors hold a majority ownership of TSO through the 95.91% of the outstanding shares that they control. This interest is also higher than at almost any other company in the Oil Refining/Marketing industry. Last, during the quarter ended December 2016, these large investors purchased a net $5.0 million shares.
Mutual fund holders
Largest Quarterly Institutional Transactions
Latest Institutional Activity
BOSTON PARTNERS GLOBAL INVESTORS... Bought 3.2 Million shares of Tesoro Corp
ARTISAN PARTNERS LP Bought 1.3 Million shares of Tesoro Corp
SENATOR INVESTMENT GROUP LP Bought 1.0 Million shares of Tesoro Corp