Mntn, Inc. shares rise 1.47% after-hours due to unspecified reasons.

Mntn, Inc. rose 1.47% in after-hours trading, with the company's stock price increase potentially influenced by the acquisition of a 14.75% stake in Guardian Metal Resources PLC by an investment fund managed by Duquesne Family Office LLC. The acquisition, valued at £13.6 million, indicates a significant investment in the company, which could be seen as a positive indicator for Mntn, Inc.'s stock performance.