Glenn Pushis, Senior Vice President at Steel Dynamics (NASDAQ:STLD), reported an insider sell on October 21, according to a new SEC filing. What Happened: Pushis’s recent Form 4 filing with the U.S. Securities and Exchange Commission on Monday unveiled the sale of 17,941 shares of Steel Dynamics. The total transaction value is $2,387,825. Monitoring the market, Steel Dynamics’s shares down by 2.62% at $129.95 during Tuesday’s morning. Get to Know Steel Dynamics BetterSteel Dynamics Inc operates scrap-based steel minimills with roughly 16 million tons of annual steel production capacity. The co…