CAMBRIDGE, Mass. (AP) – A well-known former Massachusetts Institute of Technology professor who’s now the head of a Cambridge consulting firm survived an ambush in his company parking lot during which he was shot several times.

John J. Donovan, head of Cambridge Executive Enterprises, was treated at Massachusetts General Hospital and released on Saturday morning after the shooting Friday night, hospital spokesman Arch MacInnes said Saturday.

Donovan was shot “multiple times” in the body around 8:30 p.m., Cambridge Police spokesman Frank Pasquarello said. It was not immediately clear specifically where Donovan was hit or why he was not more seriously injured, Pasquarello said. Donovan’s belt buckle may have stopped a bullet.

“There was something in his belt buckle – a bullet or a fragment,” Pasquarello said.

Donovan, 63, described the shooter only as “a white male,” Pasquarello said.

Messages left at Donovan’s business Saturday were not immediately returned. A number for Donovan’s Hamilton home could not be located and he could not be reached for comment.

Pasquarello said police were still investigating on Saturday, but hadn’t made any arrests or determined a motive.

Donovan, who is worth an estimated $100 million, is in a dispute with his children, whom he says are trying to force him out of his home.

In a statement released by a representative of four of Donovan’s children Saturday, they said, “We are shocked and saddened by the incident.”

“It raises concerns about the safety of all of our family members,” they said. “We are cooperating with the investigation, and we have no further information at this time.”

The statement was released by spokeswoman Nancy Sterling on behalf of Donovan’s daughters Carolyn Rosenbaum, Maureen Lantz and Rebecca Brown, and his son, James Donovan. His youngest son, John Donovan Jr., was not represented by Sterling.

In 2002, one of Donovan’s daughters alleged in a Suffolk Superior Court affidavit that Donovan sexually abused her as a child.

“The sexual abuse by my father has caused me tremendous pain, psychological trauma, and anguish, which continues to this day,” she wrote.

Donovan, in an affidavit, called the allegations “absolutely false.”

After the shooting at 219 Vassar St., near the MIT campus, Donovan called 911 himself. Donovan was found inside a white minivan. The parking lot is gated and in an isolated area, and was not protected by security cameras, Pasquarello said.

Donovan was educated at Yale, MIT, and Tufts. He became a tenured professor at MIT, where he taught electrical engineering and management, and also taught pediatrics at Tufts Medical School. Donovan left teaching to go into private business, where he started several companies, many of them technology related.

Donovan’s current firm trains executives on how to use technology in business. He’s known as a fascinating lecturer and The New York Times has called him the “Johnny Carson of the training circuit.”