Castellum is trading $0.65, 5.52% up in pre-market, with no clear company-specific catalyst identified.

  • It closed at $0.62 on August 18, 2026.
  • August 6 second-quarter results included revenue below expectations and a net loss.
  • No fresh announcement, filing, earnings release, contract, or analyst action was reported on August 19; broader indices are only modestly higher.