BERKELEY, Calif.–(BUSINESS WIRE)–Deep Fission, Inc. (Nasdaq: FISN) (“Deep Fission” or the “Company”), an advanced nuclear energy company developing small modular pressurized water reactors installed one mile underground, today announced the closing of its public offering of 2,500,000 shares of its common stock at a public offering price of $16.00 per share, for total gross proceeds of $40 million, before deducting underwriting discounts and commissions and other offering expenses payable by th