Billionaire developer and Palm Beach resident Ken Griffin's most recent purchases include rare copies of the Emancipation ...

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

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

Citadel's flagship Wellington fund rose 15.1% last year. Since Citadel's inception in 1990, the firm produced an annualized ...

Ken Griffin just snapped up two more impressive pieces of U.S. history.

Citadel's Ken Griffin breaks Sotheby's record with bids for two Civil War-era documents. Crain’s Laura Turbay discusses with ...

Citadel founder Ken Griffin paid $18.1 million for copies of the 13th Amendment and the Emancipation Proclamation signed by President Abraham Lincoln.

Citadel CEO Ken Griffin believes American prosperity is a testament to the power of the Constitution. And as the country gets ready to celebrate its 250th anniversary next year, with Philadelphia ...