The Herndon, Virginia, satellite-signals intelligence provider sold 16 million shares at $26 each, the top of its marketed $24-to-$26 range.
The company supplies satellite-based signals intelligence services to US government agencies, underscoring investor demand for defence and surveillance-related listings.
People familiar with the matter said the pricing details were not yet public, with the deal valuing a specialist national-security technology business at a strong debut level.
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