Kenneth Griffin, the billionaire art collector and hedge fund founder, purchased the document that abolished slavery, as well ...

The hedge-fund billionaire also paid a record $43.2 million for a copy of the U.S. Constitution four years ago.

Billionaire hedge funder Kenneth Griffin was the buyer of record-breaking copies of the 13th Amendment and the Emancipation Proclamation.

Griffin, the founder and chief executive of Citadel, broke the auction record for a Lincoln-signed document.

Ken Griffin paid a record $13.7M for the 13th Amendment and $4.4 million for the Emancipation Proclamation. Both documents were signed by Abraham Lincoln.

Billionaire Ken Griffin bought original copies of the 13th Amendment and the Emancipation Proclamation, both signed by former President Abraham Lincoln, at a New York Sotheby’s auction. The ...

Ken Griffin paid a record $13.7M for the 13th Amendment and $4.4 million for the Emancipation Proclamation. Both documents were signed by Abraham Lincoln.