ProPhase Labs shares fall 30.36% after-hours as Nasdaq delisting looms after failed compliance with $1 bid price.

ProPhase Labs fell 30.36% in after-hours trading following Nasdaq’s delisting notice, as the company failed to meet the $1.00 minimum bid price requirement by December 22, 2025. Nasdaq confirmed trading suspension on January 5, 2026, with a formal delisting filing, prompting ProPhase to plan an appeal and seek over-the-counter quotation. The delisting alert, issued under Listing Rule 5550(a)(2), signals heightened regulatory scrutiny and reduced investor confidence, directly contributing to the sharp after-hours decline. The move reflects market concerns over liquidity risks and the company’s ability to sustain compliance, aligning with the bearish price reaction.