AMBQ is trading 5.6% up at $85.75 in pre-market as traders react to an upsized $156 million underwritten public offering priced at $78 per share.

  • The offering was increased to 2,000,000 shares, generating $156 million in gross proceeds to strengthen Ambiq Micro’s balance sheet.
  • The capital raise is intended to provide growth funding, with the stock extending gains seen on June 24, 2026.
  • Investors are viewing the upsized deal as a positive signal for the company's financial position and expansion strategy.