BOSTON, (Reuters) – Investment company Arkhouse Partners seeks to acquire control of a real estate investment firm Preferred Apartment Community Two sources close to the situation said Friday that (NYSE:) had appointed five directors and a board.

Arkhouse seeks to eliminate the majority of eight Preferred Apartment Communities board members, according to sources. They also said that the nominations had been done privately.

It was not possible to determine the size or timing of Arkhouse’s investment in Preferred Apartment Communities.

Preferred Apartment Communities is valued at $927million and has worked with bankers to sell some of its properties. The company sold seven office buildings and one investment in real estate loans to office property owners earlier this year.

The share price of the company has increased 147% by 2021, and it was last trading at $18.18 on Friday.

An employee of the company could not be reached immediately for comment.

Arkhouse Partners is based in New York and did not respond immediately to our request for comment.

In 2021, an investment company had nominated a control list and unsuccessfully bid for Columbia Property Trust (NYSE:) Trust. It also owned approximately 1% of Columbia Property Trust. The investment firm withdrew the slate shortly before the annual meeting.

In the past months, activist investors have increased their efforts to pressure companies into making changes. This includes selling divisions and reorganizing management.