ProAssurance Corporation (“ProAssurance” or the “Registrant”) filed a Registration Statement on Form S-4 (No. 333-131874) (the “Registration Statement”) on February 15, 2006 to register 2,480,050 shares of ProAssurance common stock, issuable pursuant to an Agreement and Plan of Merger dated December 8, 2005 (the “Merger Agreement”) whereby Physicians Insurance Company of Wisconsin, Inc. would merge with and into a wholly-owned subsidiary of ProAssurance (the “Merger). The Merger Agreement and the exchange ratio are more specifically described in the Registration Statement.
No
additional shares will be issued as a result of the Merger. In accordance with the undertaking of the Registrant in Part II of the Registration Statement, this Post-Effective Amendment No. 1 is being filed to deregister and remove as of the date hereof all shares of common stock registered under the Registration Statement that remain unissued.
SIGNATURE
Pursuant to the requirements of the Securities Act of 1933, the Registrant has duly caused this registration statement to be signed on its behalf by the undersigned, thereunto duly authorized, in the City of Homewood, State of Alabama, on this the third
day of October, 2014.