ASP Isotopes Stock Plummets Pre-Market After Announcing Pricing Of Public Offering

ASP Isotopes Inc. (ASPI) announced on Wednesday the pricing of its underwritten public offering of more than 17 million shares of common stock, with total gross proceeds amounting to approximately $210.3 million.

The advanced materials company, which focuses on isotope production technology for various industries, expects the transaction to close on October 16, pending customary closing conditions.

The company stated that underwriters will have a 30-day option to buy extra shares valued at around $31.5 million. ASP Isotopes’ stock traded over 8% lower in Wednesday’s premarket and was among the top five equity tickers on Stocktwits. Retail sentiment around the stock remained in ‘extremely bullish’ territory amid ‘extremely high’ message volume levels. 

ASP Isotopes plans to allocate the net proceeds to strengthen its working capital and support ongoing operational costs. 

On Monday, the company revealed that it had signed a supply agreement in September with a U.S. customer for isotopically pure silicon-28, with shipments scheduled for the first quarter of 2026.

Enriched silicon-28 is a critical element for quantum computing and next-generation chip technologies. By eliminating nuclear spin interference found in natural silicon, silicon-28 enables better qubit performance, which is essential for creating stable and scalable quantum processors.

The company uses its proprietary Aerodynamic Separation Process (ASP) technology to produce and commercialize enriched isotopes for healthcare and technology markets. It is also developing Quantum Enrichment technology to support isotope production for the nuclear energy sector.

ASP Isotopes’ stock has gained over 210% in 2025 and over 384% in the last 12 months. 

Also See: Reddit Stock Rises Premarket: Goldman Sachs Sees Boost From Digital Ads, Data Licensing

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