In a filing with the securities and Exchange Commission, Bezos said he donated 47727 shares to a "non-profit organization" on May 3 and 4, but did not say which organization received the shares. Based on Amazon's closing prices on May 3 and 4, these shares are worth slightly more than $120 million.
Bezos' most famous charitable activities are Bezos earth fund and Bezos day one fund. The former promises to invest US $10 billion to fight climate change; The latter has contributed to groups serving homeless families and is establishing a national network of free pre-school education for low-income children.
It is unclear whether one of the two funds received the $120 million. Spokesmen for the Bezos earth foundation and Bezos day one foundation declined to comment, as did spokesmen dealing with Bezos's donation to the DC Public Library Foundation earlier this year.