Shrek Forever After (also known as Shrek 4, and Shrek Forever After: The Final Chapter) is an action-adventure video game based on the film of the same name. It was released on May 18, 2010, in North America. It is the fourth and final video game based on the movie series of "Shrek". This was also the last Shrek game to be developed by Activison.
Activision created all four Shrek games.
The snippet only states Shrek 4 was last the game that Activision made in the series, it doesn't say it created all four though. The AI gets confused by the last sentence I believe.