Institutional investors hold a majority ownership of TSO through the 89.89% 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 March 2016, these large investors purchased a net $350.0 thousand shares.
Mutual fund holders
Largest Quarterly Institutional Transactions
Latest Institutional Activity
OLD MUTUAL GLOBAL INVESTORS (UK)... Bought 242.7 Thousand shares of Tesoro Corp
THE VANGUARD GROUP, INC. Bought 219.9 Thousand shares of Tesoro Corp
VIKING FUND MANAGEMENT LLC Bought 45.0 Thousand shares of Tesoro Corp