Did this character experience any growth or changes during the story (explain)?

Othello- Growth as a person, probably not until he realizes his assumptions and suspicions weren't true—as a result he takes his own life. As for changes, we see a man already prideful and capable of jealousy made savage by the acceleration of those same traits. The changes in Othello as a person might be deemed regression as an individual. He regresses from a hero at the story's beginning to a murderer at its close.