An executive vice president at steel manufacturer Nucor Corp. sold $520,000 worth of company stock, according to a Securities and Exchange Commission filing on Wednesday.

Raymond S. Napolitan Jr., the company’s executive vice president, sold 8,000 shares of common stock at a price of $65.11 per share on Monday. The overall value sold was $520,880.

He still owns 78,381 shares worth $5.1 million.

In the last three months, Nucor executives and insiders have made 15 purchases for 87,481 shares and 8 sales of 148,919 shares.

Napolitan serves as Nucor’s executive vice president for engineered bar products. He also has served as an executive vice president of fabricated construction products since June 2013.

Napolitan began his career in 1996 as an engineering manager of Nucor Building Systems in Waterloo, Indiana. Soon after, he became the operations manager of Nucor Building Systems in Terrell, Texas, in 1999.

Nucor manufactures steel and steel products. It operates through steel mills, steel products and raw materials. Individual products include carbon and alloy steel.

The company is rated No. 26 of Forbes’ 2016 Best Companies to Work for List and employs more than 10,000 workers.

In addition to being North America’s leading producer of steel, Nucor is also North America’s largest recycler.

Nucor’s stock closed Wednesday at $65.35, up $1.15, or 1.79 percent.