Signed Luke Kornet to a multi-year contract.

Signed Sam Hauser to a multi-year contract.

Signed JD Davison to a two-way contract.

Traded Malik Fitts, Juwan Morgan, Aaron Nesmith, Nik Stauskas, Daniel Theis and a 2023 1st round draft pick (Julian Strawther was later selected) to the Indiana Pacers for Malcolm Brogdon. conditional 2023 1st-rd pick was BOS own, Indiana also receives a trade exception

Signed Danilo Gallinari to a multi-year contract.

Signed Mfiondu Kabengele to a two-way contract.

Signed Bruno Caboclo.

Signed Noah Vonleh.

Signed Justin Jackson.

Signed Jake Layman.

Signed Denzel Valentine.

Waived Bruno Caboclo.

Signed Luka Šamanić.

Signed Brodric Thomas.

Waived Denzel Valentine.

Signed Blake Griffin.

Signed A.J. Reeves.

Waived Luka Šamanić.

Waived A.J. Reeves.

Signed Reginald Kissoonlal.

Waived Reginald Kissoonlal.

Waived Brodric Thomas.

Signed Eric Demers.

Signed Marial Shayok.

Waived Marial Shayok.

Waived Jake Layman.

Waived Eric Demers.

Traded Noah Vonleh and cash to the San Antonio Spurs for . Boston receives a protected future 2nd-rd pick and a trade exception

Traded Justin Jackson, a 2023 2nd round draft pick (Keyonte Johnson was later selected) and a 2029 2nd round draft pick to the Oklahoma City Thunder for Mike Muscala. Boston also received a trade exception Oklahoma City also received a trade exception least favorable 2023 2nd-rd pick ended up as MIA own 2029 2nd-rd pick is BOS own

Signed Justin Champagnie.

Drafted Julian Phillips in the 2nd round (35th pick) of the 2023 NBA Draft.

As part of a 3-team trade, the Boston Celtics traded Danilo Gallinari, Mike Muscala and Julian Phillips to the Washington Wizards; the Boston Celtics traded Marcus Smart to the Memphis Grizzlies; the Memphis Grizzlies traded Marcus Sasser and a 2024 1st round draft pick (Bub Carrington was later selected) to the Boston Celtics; the Memphis Grizzlies traded Tyus Jones to the Washington Wizards; and the Washington Wizards traded Kristaps Porzingis to the Boston Celtics. 2023 top-4 protected pick is GSW own

Traded Mouhamed Gueye to the Atlanta Hawks for a 2027 2nd round draft pick. 2027 2nd-rd pick is ATL own

Traded Marcus Sasser to the Detroit Pistons for James Nnaji, a 2025 2nd round draft pick and a 2026 2nd round draft pick. 2025 2nd-rd pick is more favorable 2026 2nd-rd pick is more favorable

Traded James Nnaji to the Charlotte Hornets for Mouhamed Gueye and Colby Jones.

Traded Colby Jones to the Sacramento Kings for Jordan Walsh and a 2024 2nd round draft pick (Anton Watson was later selected). 2024 2nd-rd pick is DAL own