Alan Keller is completing his 12th year as principal at Hopkinton Middle School.

The end of each school year brings with it staff changes, and this year’s changes are more significant than usual — especially at Hopkinton Middle School, where the top two administrators have taken positions in other communities.

HMS Principal Alan Keller will become assistant superintendent for the Auburn Public Schools, while HMS Assistant Principal Chris Ocampo is leaving to become assistant principal at Acton-Boxborough High School.

Keller is completing his 12th year running HMS after working in a central office curriculum position.

“Alan‘s extensive experience with curriculum, instruction and assessment will be invaluable to the Auburn Public Schools, and we offer him the best as he moves to this new and well-deserved role,” HPS Superintendent Carol Cavanaugh wrote in an email to schools faculty and families.

Ocampo spent two years at HMS after a 10-year stint at Framingham High School in a variety of roles.

“We wish him the very best in his new district and in this new role, as he carries forth a vast understanding of what students need academically, socially, emotionally and behaviorally,” Cavanaugh wrote.

As previously reported, HPS Assistant Superintendent Jennifer Parson is leaving to become superintendent in Plainville, and Hopkinton High School Athletic Director Rich Cormier is departing for a job outside of education.

Additionally, Elmwood Assistant Principal Jason Dimen has taken a position as principal of Woodland Elementary School in Weston. Dimen spent three years at Elmwood.

“Certainly it’s with every good wish that we say goodbye and good luck to Mr. Dimen, although with his depth of talent, he won’t need luck,” Cavanaugh wrote.

The process for filling the soon-to-be-vacated positions is underway.

“As you can imagine, it will be a busy summer replacing these incredibly talented educators,” Cavanaugh noted. “Certainly, we are committed to ensuring excellent continuity of education for all students in the Hopkinton Public Schools.”