By Dawn Chmielewski

(Reuters) -Walt Disney's Pixar Animation Studios has eliminated 75 positions including those of two executives behind box office disappointment “Lightyear,” sources said on Saturday, the first significant job cuts at the studio in a decade.

The cuts included "Lightyear" director Angus MacLane, a 26-year animator who was part of the senior creative team on such acclaimed films as “Toy Story 4” and “Coco.” Galyn Susman, producer of "Lightyear," also departed. Susman had been at Pixar since the release of the original “Toy Story” movie in 1995.

MacLane and Susman could not be reached for comment.

The cuts, which took place May 23, are part of Walt Disney Co Chief Executive Bob Iger’s previously announced plan to eliminate 7,000 jobs and slash $5.5 billion in costs.

(Reporting by Dawn Chmielewski; Editing by Cynthia Osterman)