[3] Chan is also a director of Hang Lung Group, his family's real estate firm, Stealth Peptides, Advanced Cell Diagnostics, Matrivax, Vaccine Technologies Inc, and Oxyrane.
[5] He is also the Chairman and founding investor of Apellis Pharmaceuticals, Inc. (Nasdaq:$APLS) As of 2015, he had invested over $100 million into the real estate market in the Harvard Square district of Cambridge, the location of his former alma mater.
[4] In September 2018, Chan opened luxury countryside hotel, Heckfield Place, in Hampshire, England, a renovated 18th-century manor house and farm.
[4][7] In September 2021, the Chans' Morningside Foundation donated $175 million to the UMass Medical School in Worcester, MA, and it changed its name to UMass Chan Medical School.
[8] In March 2022, the Morningside Foundation donated $100 million to found the MIT Morningside Academy for Design, intended to "encourage design work at MIT to grow and cross disciplines among engineering, science, management, computing, architecture, urban planning, and the arts.