Who owns hobby lobby?

The stockholders. From the Hobby Lobby website...

Hobby Lobby began operation August 3, 1972 with 300 square feet of retail space, located in North Oklahoma City. This was a retail outgrowth of Greco Products, a miniature picture frame company, founded by David Green in 1970. In January 1973, the operation was moved to a house near N.W. 23rd and Western, and the amount of retail space was increased to approximately 1,000 square feet.

Over the years this modest beginning has grown into 476 stores which operates in 40 states.