Yorktown Heights, N.Y.-based PCSB Financial Corp., the proposed holding company for PCSB Bank, raised the number of shares it may sell at the supermax of its conversion offering to 23,583,481.

The adjusted maximum gross offering proceeds are now estimated at $231.4 million from the previous $211.6 million, while the minimum is at nearly $148.8 million from $136 million. The price per share remains $10.00.

Sandler O'Neill & Partners LP is assisting the company in selling the shares on a best-efforts basis, and will serve as sole manager for any syndicated and firm commitment offering.