Kate Squire, a fourth-grade teacher based in Concord will take the helm as principal of the Chilmark School, according to an announcement from superintendent of school Dr. Richard Smith.

Ms. Squire, who was picked out of a group of 12 applicants, is slated to begin the position on July 1, taking over for longtime school principal Susan Stevens, who is retiring.

“Kate has vast experience as a teacher leader, department leader, curriculum leader, and as a change agent in her school and in her entire Concord public school system,” Mr. Smith wrote in a letter addressed to parents. “My strong belief, and the opinions of many of those who met Ms. Squire, is that Kate is principal ready now.”

Chilmark select board member Marie Larsen, who served on the school principal search committee, praised Ms. Squire’s “stellar resume and stellar accomplishments” at a board meeting Wednesday.

In his letter sent out on Wednesday, Mr. Smith quoted Ms. Squire’s letter of interest to the search committee.

“I recognize the awesome responsibility of preparing students to be active, informed global citizens,” she wrote. “As principal, I will model the curiosity, joy, wonder, and perseverance essential to meaningful, lifelong learning.”