Team K, 2018
Team K is AKB48 2nd Team. Currently (September 2019) the team has 21 members, and Komiyama Haruka is the captain.
2006
- February 26 - Auditions for Team K was held. First time in the industry to use "camera phones" for auditions. A total of 11,892 applicants auditioned with only 19 of them to pass, but the final number of members in Team K's formation were 17 girls (Original Team K): Akimoto Sayaka, Umeda Ayaka, Oshima Yuko, Ohori Megumi, Oku Manami, Ono Erena, Kasai Tomomi, Kobayashi Kana, Sato Natsuki, Noro Kayo, Hayano Kaoru, Masuda Yuka, Matsubara Natsumi, Miyazawa Sae, Imai Yu, Uemura Ayako and Takada Ayana
- April 1 - Shonichi of Team K 1st Stage
- June 16 - Uemura Ayako graduated from AKB48
- July 5 - Senshuuraku of Team K 1st Stage
- July 8 - Shonichi of Team K 2nd Stage
- November 6 - Senshuuraku of Team K 2nd Stage
- November 8 - Revival of Team K 1st Stage
- December 14 - Senshuuraku of Team K 1st Stage's Revival
- December 17 - Shonichi of Team K 3rd Stage
2007
- June 22 - Senshuuraku of Team K 3rd Stage
- June 25 - Imai Yu and Takada Ayana graduate from AKB48
2008
- May 31 - Shonichi of Team K 4th Stage
2009
- April 4 - Senshuuraku of Team K 4th Stage
- April 11 - Shonichi of Team K 5th Stage
- April 26 - Hayano Kaoru graduated from AKB48
- May 29 - Naruse Risa graduated from AKB48
- August - Team Shuffle (Akimoto Team K)
- Akimoto Sayaka choosen as captain of the Team
- Fujie Reina, Itano Tomomi, Minegishi Minami, Nito Moeno, Yonezawa Rumi, Nakatsuka Tomomi, Kohara Haruka and Tanabe Miku transfered to Team K
- Matsubara Natsumi and Kuramochi Asuka transfered to Team A
- Kobayashi Kana, Masuda Yuka, Oku Manami, Chikano Rina, Sato Natsuki and Kasai Tomomi transfered to Team B
- Noro Kayo and Ohori Megumi transfered to SDN48
- Uchida Mayumi, Kikuchi Ayaka, Nonaka Misato and Matsui Sakiko are promoted
2010
- February 21 - Senshuuraku of Team K 5th Stage
- March 12 - Shonichi of Team K 6th Stage
- September 27 - Ono Erena graduated from AKB48
- October 10 - Yokoyama Yui promoted
2012
- January 27 - Yonezawa Rumi graduated from AKB48
- March 24 - Matsui Jurina choosen as temporary member of Team K
- August 24 - Tokyo Dome Team Shuffle (Oshima Team K)
- Oshima Yuko choosen as captain of the Team
- Miyazawa Sae transferred to SNH48 (Transferred Members)
- Muto Tomu and Mitsumune Kaoru promoted
- October - Mitsumune Kaoru graduated from AKB48
- October 24 - Senshuuraku of Team K 6th Stage
2013
- March 6 - Nakaya Sayaka graduated from AKB48
- April 28 - Hirata Rina promoted to Team K
- Furuhata Nao to have concurrent position in Team K
- Miyazawa Sae to have concurrent position in Team K
- June 8 - Miyazawa Sae end Concurrent position
- August 27 - Itano Tomomi graduated from AKB48
- August 28 - Akimoto Sayaka graduated from AKB48
- September 1 - Nozawa Rena transferred from Team Unknown to Team K
2014
- January 15 - Sato Amina graduates from AKB48
- Febuary 12 - Senshuuraku of Team K 1st Waiting Stage
- Febuary 20 - Shonichi of Team K 4th Stage's Revival
- Febuary 24 - AKB48 Group Daisokaku Matsuri (Yokoyama Team K)
- Yokoyama Yui choosen as the captain of the Team
- Kitahara Rie choosen as the vice-captain
- Yumoto Ami promoted
- Yamamoto Sayaka to have a concurrent position in Team K
- Aigasa Moe, Ishida Haruka, Iwasa Misaki, Kojima Mako, Kodama Haruka, Suzuki Mariya, Tano Yuka,Nonaka Misato and Yokoyama Yui transferred to Team K
- Nakata Chisato, Fujita Nana, Furuhata Nao, Maeda Ami and Muto Tomu transferred to Team A
- Kuramochi Asuka, Nozawa Rena and Hirata Rina transferred to Team B
- Chikano Rina transferred to JKT48 (Team Kaigai)
- April 16 - Senshuuraku of Team K 4th Stage's Revival
- Mai 7 - Shonichi of Team K 6th Stage's Revival
- June 9 - Oshima Yuko graduates from AKB48
2015
- March 26 - AKB48 Spring Shuffle 2015 (Minegishi Team K)
- Minegishi Minami choosen as the captain
- Shimada Haruka choosen as the vice-captain
- Ichikawa Manami, Shinozaki Ayana, Takajo Aki, Nakata Chisato, Fujita Nana, Matsui Sakiko, Minegishi Minami, Mukaichi Mion, Muto Tomu and Mogi Shinobu transferred to Team K
- Miyazaki Miho and Yokoyama Yui transferred to Team A
- Iwasa Misaki, Uchida Mayumi, Kobayashi Kana and Goto Moe transferred to Team B
- Kojima Mako transferred to Team 4
- May 21 - Suzuki Shihori graduate from AKB48
- August 22 - Uchida Mayumi graduated from AKB48
- August 26 - Senshuuraku of Team K 6th Stage's Revival
- October 21 - Matsui Jurina cancelled her concurrent position
- November 30 - Shonichi of Team K 4th Stage'S Revival
2016
- February 23 - Takajo Aki graduated from AKB48
- March 19 - Nagao Mariya graduated from AKB48
- April 13 - Yamamoto Sayaka cancelled her concurrent position
- May 17 - Ishida Haruka graduated from AKB48
2017
- March 21 - Aigasa Moe graduated from AKB48
- April 24 - Nakata Chisato graduated from AKB48
- June 10 - Suzuki Mariya graduated from AKB48
- September 27 - Kubo Satone promoted
- November 13 - Shimada Haruka graduated from AKB48
- November 30 - Abe Maria transferred to TPE48
- December 8 - AKB48 Team Shuffle 2017 (Komiyama Team K)
- Ichikawa Manami, Oda Erina, Kuranoo Narumi, Kojima Mako, Komiyama Haruka, Shimoguchi Hinana, Tano Yuuka, Terada Misaki, Nakano Ikumi, Nozawa Rena, Hashimoto Haruna, Harumoto Yuki, Hidaritomo Ayaka, Fujita Nana, Minegishi Minami, Muto Orin, Mutou Tomu, Mogi Shinobu, Yaguchi Moka, Yasuda Kana, Yamada Kyoka, Yamada Nanami, Yumoto Ami, Yokomichi Yuri, Yokoyama Yui
- Komiyama Haruka choosen as the captain of the Team
- Muto Orin and Yasuda Kana promoted
- Oda Erina, Kuranoo Narumi, Terada Misaki, Hashimoto Haruna, Harumoto Yuki, Hidaritomo Ayaka, Yaguchi Moka, Yamada Kyoka, Yokomichi Yuri and Yokoyama Yui to have concurrent positions
- Kodama Haruka's concurrent position revoked
- Kojima Mako, Komiyama Haruka, Nozawa Rena and Yamada Nanami transferred to Team K
- Shinozaki Ayana and Mukaichi Mion transferred to Team A
- Kubo Satone transferred to Team B
- Ichikawa Manami, Oda Erina, Kuranoo Narumi, Kojima Mako, Komiyama Haruka, Shimoguchi Hinana, Tano Yuuka, Terada Misaki, Nakano Ikumi, Nozawa Rena, Hashimoto Haruna, Harumoto Yuki, Hidaritomo Ayaka, Fujita Nana, Minegishi Minami, Muto Orin, Mutou Tomu, Mogi Shinobu, Yaguchi Moka, Yasuda Kana, Yamada Kyoka, Yamada Nanami, Yumoto Ami, Yokomichi Yuri, Yokoyama Yui
2018
- May 15 - Tano Yuuka graduated from AKB48
2019
- February 3 - Nozawa Rena graduated from AKB48
- May 12 - Kojima Mako graduated from AKB48
- May 18 - Yokomichi Yuri graduated from AKB48
- May 30 - Nakano Ikumi graduated from AKB48
- June 22 - Yamada Nanami graduated from AKB48
