We recently published 10 Big Names Crumbling Before 2026. ASP Isotopes Inc. (NASDAQ:ISP) is one of the worst performers on Tuesday. ASP Isotopes extended its losing streak to a third day on Tuesday, shedding 5.08 percent to close at $5.42 apiece as investors mirrored a key executive’s disposition of a significant stake in the company. In a regulatory filing on Monday, ASP Isotopes Inc. (NASDAQ:ISP) said that its chief finance officer, Heather Kiessling, disposed of 80,000 shares at a weighted average pri ...