2015 Sadamasa Motonaga - Fergus McCaffrey, New York City, NY
　　 In and Around Sadamasa Motonaga - The Museum of Contemporary Art 　　Karuizawa, Karuizawa

2012 Sadamasa Motonaga - McCaffrey Fine Art, New York City, NY
2009 Sadamasa Motonaga - Mie Prefectural Art Museum, Tsu City
　　 Seiji Togo Memorial Sompo Japan Museum of Art Grand Prix - Sadamasa 　 　　 Motonaga - Sompo Japan Museum of Art, Tokyo

2003 Motonaga Sadamasa - Hiroshima City Museum of Contemporary Art, Hiroshima
1991 Motonaga Sadamasa - Mie Prefectural Art Museum, Tsu City

2017 Open Week”- Tokyo Station Gallery, Tokyo
2016 A Feverish Era: Art Informel and the Expansion of Japanese Artistic Expression in the 1950s and‘60s - National Museum of Modern Art Kyoto (MOMAK), Kyoto
　 A Taste of Gutai: Lito and Kim Camacho Collection - Ayala Museum, Makati City
2015 Form and Feeling ―What Creates a Sense of Familiarity? - Hiroshima City Museum of Contemporary Art, Hiroshima
　　 Gutai-jin in Karuizawa - Karuizawa New Art Museum, Karuizawa
Slip of the Tongue - Punta della Dogana - Francois Pinault Foundation, Venice
Between Action and the Unknown: The Art of Kazuo Shiraga and Sadamasa Motonaga - Dallas Museum of Art, Dallas, TX
Collection Becoming - Museum of Contemporary Art Tokyo (MOT), Tokyo
2013 Doki Doki. The Fascination Of Ceramics, The Excitement Of Art - The Museum of Ceramic Art, Hyogo, Sasayama, Hyōgo
　　 The Gallery Shinanobashi Collection - Hyogo Prefectural Museum of Art, Kobe
Doki Doki. The Fascination Of Ceramics, The Excitement Of Art - Museum of Modern Ceramic Art, Tajimi, Gifu
Gutai - Whitestone Gallery, Tokyo
Parallel Views: Italian And Japanese Art From The 1950S, 60S, And 70S - The Warehouse, Dallas, TX
Gutai: Splendid Playground - Solomon R. Guggenheim Museum, New York City, NY
Gutai • Kusama - SEM-ART Gallery, Monaco
2012 Specific Pieces Exhibition - Art-U room, Tokyo
A Visual Essay on Gutai - Hauser & Wirth New York , New York City, NY
The Link Between Words and Art - Gallery Yamaki Fine Art, Hyogo
Gutai: The Spirit Of An Era - The National Art Center Tokyo, Tokyo
Explosion! - Painting in Action - Moderna Museet, Stockholm
Doki Doki. The Fascination Of Ceramics, The Excitement Of Art - Museum of Contemporary Ceramic Art Shigaraki, Shigaraki
2011 End of Year Sale - Whitestone Gallery, Tokyo
nul = 0 - dutch avant-garde in an international context, 1961-1966 - De Korenbeurs (bis Sept 05), Schiedam
2010 Collection 3. Japanese Art 1950–2010 - NMAO National Museum of Art Osaka, Osaka
Gutai: Painting with Time and Space - Museo Cantonale d´Arte Lugano, Lugano
Under Each Other’s Spell: The Gutai and New York - UB Art Galleries - University of Buffalo, Buffalo, NY
Japanese Oil Painting from the Collections - Tochigi Prefectural Museum of Fine Arts, Tochigi
2009 Under Each Other‘s Spell: Gutai and New York - The Harold B. Lemmerman Gallery at New Jersey City University, Jersey City, NJ
Weltanschauung Visione Del Mondo - Art Forum Würth Capena, Capena
Four Stories : Paths to Japanese Modern Art - Kawamura Memorial Museum of Art, Sakura, Chiba
53nd International Art Exhibition Venice Biennale / Biennale di Venezia - La Biennale di Venezia, Venice
2008 Rediscover The Beauty of Prints - Gallery Toki No Wasuremono, Tokyo
Print Works By Kumi Sugai And Sadamasa Motonaga - Gallery Toki No Wasuremono, Tokyo
2007 ARTEMPO - Where Times Becomes Art - Museo Fortuny, Venice
Small prints with Kakejiku style - Gallery Toki No Wasuremono, Tokyo
2006 Zéro - Musée d’Art moderne de Saint-Etienne, Saint-Etienne
ZERO - Internationale Künstler-Avantgarde der 50er/60er Jahre - Museum Kunstpalast, Dusseldorf
2005 Resounding Spirit - Japanese Contemporary Art of the 1960s - Bucknell University, Lewisburg, PA
2001 Le Tribù dell‘Arte - MACRO Museo d´Arte Contemporanea Roma, Rome
1997 JAPANESE ART, 1960s First Phase: Japanese Summer 1960-64 “I Don‘t Give a Damn Anymore!“ - Mito Geijutsu-kan, Mito