B. Riley upgraded Spok (SPOK) to Buy from Neutral with a price target of $20, up from $15, following the Q4 report. The company provided fiscal 2025 adjusted EBITDA margin guidance that is 30 basis points above expectations, the analyst tells investors in a research note. The firm believes Spok continues to generate consistent cash flow to pay its “compelling” dividend, manage its wireless net unit churn, minimize overhead expenses, and drive growth in the software business.