When listing the visionary media moguls of the digital age, Vince McMahon, the professional wrestling impresario, might not immediately come to mind.

Yet Mr. McMahon and his company, World Wrestling Entertainment, have positioned themselves on the cutting edge of Internet television with the WWE Network, a new subscription-only streaming video service. Introduced in February, the network broadcasts the pro wrestling extravaganzas that were once available only on cable and satellite television.

And on April 6, when the WWE hosts its 30th WrestleMania event at the Superdome in New Orleans — featuring the “Andre the Giant Memorial Battle Royal” — the entertainment industry and Wall Street will be watching as closely as wrestling fans.

Shares of the WWE, a publicly traded company based in Stamford, Conn., have more than tripled over the last year with the introduction of the subscription network and takeover rumors. Mr. McMahon, 68, controls the company, and his ambitious WWE Network could be his final act in charge, industry watchers say.