Shareholders of heavy equipment auctioneer Ritchie Bros. approved the company’s plan to acquire vehicle-seller IAA Inc., ending a battle to block the $6 billion deal.

Ritchie Bros. Auctioneers Inc. has the potential to double its share price if it takes over IAA Inc., its CEO said as she launches a final push to fend off opposition from some shareholders to the deal.

A large investor in Ritchie Bros. Auctioneers Inc. is backing the Canadian auction company’s proposed takeover of IAA Inc., giving a boost to a deal that has been opposed by other shareholders.

Ritchie Bros. Auctioneers Inc. appointed Eric Jacobs chief financial officer, effective June 6.

Ritchie Bros. announced Kari Taylor, president of North America sales, has been appointed to the newly created position of chief revenue officer.

Auctioneer Ritchie Bros. announced PriorityBid, a feature that enables buyers to make proxy bids online for items in its live auctions up to a week before the sale.

ORLANDO, Fla.— Industrial auctioneer Ritchie Bros. jammed row after row of used equipment in all shapes and sizes riding on tires or treads onto a 232-acre site here to launch its annual premier auction in February, the first since acquiring rival IronPlanet.

Industrial auctioneer Ritchie Bros. announced that it has acquired Petrowsky Auctioneers for $7 million to enhance its market presence in New England.