While there were no guest investors sitting on the panel to offer deals, Season 4 was notable for a series of who appeared to support specific pitchers:
: Lori Greiner invested in Aaron Krause's cleaning tool, which remains the most successful product in the show's history. were there guest sharks in shark tank season 4
), those are currently appearing in Season 17 of the US show and Season 4 of Shark Tank India (2025–2026). While there were no guest investors sitting on
Here is your guide to the Guest Sharks of Season 4 and why they mattered. funding 18 different companies.
: Mark Cuban was the most active investor this season, funding 18 different companies.
While there were no guest investors sitting on the panel to offer deals, Season 4 was notable for a series of who appeared to support specific pitchers:
: Lori Greiner invested in Aaron Krause's cleaning tool, which remains the most successful product in the show's history.
), those are currently appearing in Season 17 of the US show and Season 4 of Shark Tank India (2025–2026).
Here is your guide to the Guest Sharks of Season 4 and why they mattered.
: Mark Cuban was the most active investor this season, funding 18 different companies.