1946
Disegni dello scultore Mario Negri, Genoa, Galleria Genova and L’Isola, 17-31 October (text by Stefano Cairola)
1957
Sculture di Mario Negri in una sua prima mostra personale, Milan, Galleria Il Milione, April (text by Cesare Gnudi)
1958
Mario Negri, First New York Exhibition of Sculpture, New York, Grace Borgenicht Gallery, 10-29 March (excerpts from texts by Pier Maria Bardi and Cesare Gnudi)
Solo room at the 29th Venice Art Biennale, Venice, June-October (text by Luigi Carluccio)
1959
Mario Negri, 18 sculture, Locarno, Galleria La Palma, 19 September-15 October (text by Gino Ghiringhelli)
VIII Quadriennale Nazionale d’Arte di Roma, group of nine sculptures, Rome, Palazzo delle Esposizioni, December 1959-April 1960 (text by Franco Russoli)
1960
Mario Negri – Livio Bernasconi, Winterthur, Kunstmuseum, 2 October-13 November (text by Franco Russoli)
Sculpture. Mario Negri, New York, Grace Borgenicht Gallery, 15 November-3 December
1961
Mario Negri, Geneva, Galerie Motte, June
1962
Mario Negri, 23 sculture, Turin, Galleria Galatea, 15 May-1 June (text by Luigi Carluccio)
1965
IX Quadriennale Nazionale d’Arte di Roma, group of five sculptures, Rome, Palazzo delle Esposizioni, November
1967
Mario Negri. Sculture dal 1960 al 1967, Milan, Galleria Il Milione, November-December (texts by Cesare Gnudi, Abraham M. Hammacher, Franco Russoli, Giovanni Testori, Marco Valsecchi, Rudolf Wach)
1968
Mario Negri. Sculture dal 1959 al 1967, Bolzano, Galleria Goethe, 3-22 February (same texts as catalogue of Galleria Il Milione, 1967)
1970
Skulpturen. Mario Negri, Eindhoven, Van Abbemuseum, 19 June-12 July (texts by J. Leering and Abraham M. Hammacher)
Mario Negri. Sculptures 1947-1969, first solo exhibition in Canada, Montreal, Dominion Gallery, May-June (text by Franco Russoli)
1972
X Quadriennale Nazionale d’Arte di Roma, group of seven sculptures, Rome, Palazzo delle Esposizioni
1975
Manzù, Marini, Negri, Montreal, Dominion Gallery, January (text by Max Stern)
1979
Mario Negri. Sculture, Lugano, Galleria Pieter Coray, 25 May-23 June (text by M.N.)
Mario Negri. Forme nel verde 1979, San Quirico d’Orcia, Horti Leonini, 23 June-9 July, and Caprese Michelangelo, Museo Casa Natale di Michelangelo Buonarroti, 22 July-5 August (text by Pier Carlo Santini)
1980
Mario Negri. Sculture e piccoli bronzi 1969-1979, Busto Arsizio, Galleria Bambaia, 12 April-11 May (text by Ruggero Savinio)
1981
Mario Negri. Sculture, Padua, Galleria Adelphi, 23 April-8 May (text by Alberto Carrain)
1982
Mario Negri, Lugano, Galleria Pieter Coray, 28 May-10 July (text by M.N.)
1983
Mario Negri. Progetti e luoghi immaginati, Milan, Galleria Stendhal, March-April (interview by Marco Meneguzzo and texts by M.N.); then Busto Arsizio, Galleria Bambaia, 7 May-5 June
1984
Mario Negri. Skulpturen, Salzburg, Galerie Welz, 29 May-24 June
Mario Negri. Bronzen, Vienna, Orangerie and Palais Auersperg, 3-25 July
Mario Negri. Skulpturen, Innsbruck, Galerie im Taxispalais, 4-29 September
1985
Arte nella fortezza. Gigi Guadagnucci, Carlo Mattioli, Mario Negri, Sarzana, Fortezza di Sarzanello, 25 July-25 August (text by Pier Carlo Santini)
Mario Negri. Sculture, Parma, Galleria La Sanseverina, 2 October-16 November (text by Roberto Tassi)
1986
Mario Negri, Centro Bayer Italia, Milan, February (text by Pier Carlo Santini)
1987-1988
Mario Negri. Opere 1946-1987, Mantua, Palazzo Te, 7 June-19 July 1987, curated by Gian Maria Erbesato (texts by Gian Maria Erbesato, Renzo Sertoli Salis, Gian Alberto Dell’Acqua, Ennio Morlotti, Giovanni Testori, Dante Isella, Vanni Scheiwiller and critical anthology); then Tirano, Palazzo Salis, 4 September-9 October 1988
1989
Mario Negri, Milan, Rotonda di Via Besana, 4 April-14 May, curated by Gianfranco Bruno, exhibit design Antonio Monestiroli (texts by Gianfranco Bruno, M.N. and critical anthology)
1990
Mario Negri. Sculture, Milan, Galleria Gian Ferrari, 18 October-24 November (texts by Claudia Gian Ferrari and Renzo Zorzi)
Mario Negri e Giuseppe Guerreschi. Sculture e dipinti 1957-1984, Busto Arsizio, Galleria Bambaia, May-June (text by Roberto Tassi)
1992
Mario Negri, group of thirteen sculptures at the Chiostro del Refettorio delle Stelline, Galleria Credito Valtellinese, Milan, September 1992-December 1994 (text by Giovanni Testori and transcription of a conversation for Italian Swiss Radio-Television by Claudio Nembrini, 1987)
1994
Mario Negri a Castelgrande, Bellinzona, Castelgrande, 9 June-15 August. Curated by Pieter Coray and Francesca Gemnetti. Exhibit design by Achille Castiglioni and Nicola Marras (texts by Roberto Tassi and Claudio Nembrini)
1996
Omaggio a Mario Negri. Sculture, Lugano, Galleria Pieter Coray, 30 March-18 May
1997
Mario Negri. Sculture dal 1955 al 1986, Cortina d’Ampezzo, Galleria Civica Palazzo delle Poste, 20 December 1997-31 January 1998
1998
Negri Hildesheimer Della Torre: un clima d’arte in Valtellina negli Anni 70 e 80. Curated by Elena Pontiggia, Teglio (Sondrio), Palazzo Besta, 18 July-26 September
2001
Mario Negri. Opere dal 1936 al 1987. Curated by Giuseppe Appella. Exhibit design Alberto Zanmatti. Matera, churches of Madonna delle Virtù and San Nicola dei Greci-Sasso Barisano and Circolo della Scaletta, 30 June-30 September
2005
Omaggio a Mario Negri. Opere degli Anni 70, Milan, Galleria Consadori, 5-28 May
2008
Mario Negri. Dodici sculture, Aprica (Sondrio), church of San Pietro and Santuario di Maria Ausiliatrice, 27 July-20 August
2016
Mario Negri. “The desperate and constant act of searching”. Curated by Martina Corgnati, Milano, Studio d’Arte del Lauro, 12 May-30 June. Catalogue edited by Cristina Sissa. Then Tirano (Sondrio), Palazzo Foppoli, 10 September-9 October
2019
Mario Negri. Scultore a Milano. Curated by Luca Pietro Nicoletti with Chiara, Marina and Maria Laura Negri, Milan, Villa Necchi Campiglio, 30 October 2019-6 January 2020 (texts by Luca Pietro Nicoletti, Flavio Fergonzi, Alessandro Del Puppo, Duccio Nobili, Chiara Negri)