Short answers, pulled from the story.
Studio Pierrot was founded on the 1st of May 1979 by four animators: Yuji Nunokawa, Hisayuki Toriumi, Mitsuo Kaminashi, and Masami Annou. The studio emerged from the ashes of Tatsunoko Production and Mushi Production to establish a new entity focused on creative freedom.
Studio Pierrot produced Yu Yu Hakusho from October 1992 to January 1995 and Gensomaden Saiyuki from April 2000 to March 2001. These series won the Animage Anime Grand Prix Award and defined a generation of anime fans through supernatural action and fantasy storytelling.
Studio Pierrot created Naruto from October 2002 to February 2007 and Bleach from October 2004 to March 2012. The studio also produced Tokyo Ghoul which premiered in July 2014 and later released sequels including Naruto: Shippuden and Bleach: Thousand-Year Blood War.
Kazumichi Ueda became president of Studio Pierrot in July 2024 after Michiyuki Honma retired from the CEO position. Keiro Itsumi was promoted to second president to support the new dual representative structure of the company.
Studio Pierrot co-produced The Legend of Korra with Studio 4°C and JM Animation from April 2012 to December 2014. This series aired on Nickelodeon and demonstrated the studio's ability to adapt to Western animation styles while maintaining their unique identity.