A few weeks ago, Josh Baer reported that Phillips de Pury was looking to move to 57th St. The New York Post adds some flesh to the rumor with this mention in an item on the decline of 57th St. real estate:

On the possible good news front, Phillips is said by several sources to have signed a lease for 30,000 square feet at the base of Somerset Partners’ 450 Park Ave., the black-glass tower it bought in 2007 for a record, near-$1,600 a square foot (remember those days?).

Ins & Outs on 57th St. (NY Post)