Casey’s General Stores Inc., the Ankeny-based convenience store retailer with more than 2,200 stores in 16 U.S. states, has expanded its leadership team with four new hires and one promotion. 
The new employees include:

• Carri Stojack, who will join Casey’s on Aug. 31 as vice president of guest insights. Stojack most recently was vice president of consumer insights at Dine Brands.
• Larry Carroll, who has joined the retailer as vice president of asset protection. Carroll, with more than 30 years in asset protection, most recently served as vice president of asset protection, inventory analytics and compliance at 99 Cents Only Stores in California.
• Jaime Robles, who has joined Casey’s as vice president of procurement. Robles most recently served as a strategic sourcing consultant for Walmart.
• Nan Thomae, who joined the company as vice president of human resources, field operations. Thomae most recently was in a human resources’ leadership role at Tractor Supply.

In addition, Sherri Hart was promoted to vice president of total rewards.