RALEIGH – Lonnie Poole Jr., founder and chairman of Waste Industries, and Jim Perry, the company’s chief executive officer, and other investors are taking the firm private in a deal worth some $544 million.

Waste Industries has traded on the Nasdaq under the symbol WWIN.

The news sent the company’s shares up nearly 22 percent, or $6.46, to close at $36.15 on Tuesday.

Poole and Perry led an investor group that already owned 51 percent of the company’s shares. They agreed to pay $36.75 per share for those they did not already hold.

The investors made a bid in October that totaled some $518 million.

Other investors include Macquarie Infrastructure Partners and Goldman Sachs.

The offer is a nearly 30 percent premium over the stock’s closing price of $29.69 on Monday.

In a statement, the investors said it would keep its headquarters in Raleigh.

Waste Industries provides collection, transfer, disposal and recycling services to commercial, industrial and residential customers. It operates in North Carolina, South Carolina, Virginia, Georgia, Tennessee and Mississippi.