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

A handwritten copy of the 13th Amendment to the U.S. Constitution signed by Abraham Lincoln has sold at auction for a record $13.7 million. It’s the highest price ever paid for a document signed ...

Griffin reset the record for any document signed by Lincoln when he paid Sotheby’s $13.7 million on Thursday for a rare, handwritten copy of the 13th Amendment.

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.

The billionaire recently purchased rare copies of the Emancipation Proclamation and 13th Amendment.

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Ken Griffin just snapped up two more impressive pieces of U.S. history. The hedge fund billionaire just bought an Abraham Lincoln–signed copy of the Thirteenth Amendment via Sotheby’s for $13.7 ...

Griffin reportedly plans to lend his copies of the Thirteenth Amendment and the Emancipation Proclamation to a US institution ...

The Citadel hedge fund manager paid $13.7 million for an original copy of the 13th Amendment, which abolished slavery and was ratified in 1865.