• Former Morgan Stanley vice chairman Bruce Fiedorek has "quietly" put his fifth-floor co-op at 998 Fifth Avenue on the market for around $45 million. The 7,000-square-foot apartment, which was renovated by Stephen Sills and James Huniford and is one floor up from Len Blavatnik, is being listed by Kathy Sloane. [NYO]
• The sixth-floor co-op at 960 Park Avenue that belonged to the late Baroness Jacqueline de Gunzburg has gone into contract. It had been on the market most recently for $10.95 million. [Cityfile, Stribling]

• The art gallery Plane Space has taken $1 million off the price of its townhouse at 102 Charles Street (left). The 5,760-square-foot space is now listed at $9.6 million. [Cityfile, PDE] (Update: This item originally listed the owner as Andrea Soros Colombel, the philanthropist daughter of George Soros. A rep for Ms. Soros tells us she no longer owns the townhouse, having sold it to Plane Space several years ago.)
• The longtime home of Baroness Jacqueline de Gunzburg, who passed away in September, has hit the market. The five-bedroom apartment at 960 Park Avenue has an asking price of $10.95 million. [Cityfile, Stribling]
• Wanna live in the same building as Jamie Dimon? Furniture designer Vladimir Kagan and his wife Erica Wilson have put their 3,840-square-foot co-op at 1185 Park Avenue on the market for $8.75 million. [NYP, Corcoran]