The private placement will help advance exploration at the company's flagship Treaty Creek property in Canada's Golden Triangle.
Eric Sprott, through 2176423 Ontario Ltd, a corporation beneficially owned by him, subscribed for $2 million in the offering.
Tudor's Treaty Creek is in British Columbia and borders Seabridge Gold's KSM property to the southwest and Pretium Resources' Brucejack property to the southwest.
An initial resource estimate, published in March last year, put Treaty's measured plus indicated resources at 19.4 million ounces of 0.74g/t of gold equivalent, and inferred resources at 79 million oz of 0.79g/t AuEq. Tudor says this ranks it among the world's largest gold discoveries of the past 30 years.
Tudor holds a 60% stake in Treaty. The company also has 100% interests in the fellow Golden Triangle projects of Crown and Eskay North.