X0306 4 2015-11-17 1 0000921547 HERITAGE OAKS BANCORP HEOP 0001459707 CASTLE CREEK CAPITAL PARTNERS IV, LP C/O CASTLE CREEK CAPITAL LLC 6051 EL TORDO RANCHO SANTA FE CA 92067 0 0 1 0 0001569797 Castle Creek Capital IV LLC C/O CASTLE CREEK CAPITAL LLC 6051 EL TORDO RANCHO SANTA FE CA 92067 0 0 1 0 0001197257 EGGEMEYER JOHN M III C/O CASTLE CREEK CAPITAL LLC 6051 EL TORDO RANCHO SANTA FE CA 92067 0 0 1 0 0001242722 THOMAS J MIKESELL C/O CASTLE CREEK CAPITAL LLC 6051 EL TORDO RANCHO SANTA FE CA 92067 0 0 1 0 0001332829 MERLO MARK G C/O CASTLE CREEK CAPITAL LLC 6051 EL TORDO RANCHO SANTA FE CA 92067 0 0 1 0 0001481798 Pietrzak John C/O CASTLE CREEK CAPITAL LLC 6051 EL TORDO RANCHO SANTA FE CA 92067 0 0 1 0 Heritage Oaks Bancorp Common Stock 2015-11-17 4 S 0 2000000 8.0002 D 1672638 D The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $8.00 to $8.24, inclusive. The reporting persons undertake to provide to Heritage Oaks Bancorp, any security holder of Heritage Oak Bancorp, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in footnote (1) to this Form 4. These securities are owned by Castle Creek Capital Partners IV, LP ("Fund IV"). Each of Castle Creek Capital IV LLC, John M. Eggemeyer III, J. Mikesell Thomas, Mark G. Merlo, and John T. Pietrzak may also be deemed to be the beneficial owner of the 1,672,638 shares of Common Stock held directly by Fund IV. Mr. Eggemeyer, Mr. Thomas, Mr. Merlo, and Mr. Pietrzak are managing principals of Castle Creek Capital IV LLC, the sole general partner of Fund IV. Castle Creek Capital IV LLC, Mr. Eggemeyer, Mr. Thomas, Mr. Merlo, and Mr. Pietrzak each disclaim beneficial ownership of such shares of Common Stock, except to the extent of their respective pecuniary interest in Fund IV, and this report shall not be deemed an admission that Castle Creek Capital IV LLC, Mr. Eggemeyer, Mr. Thomas, Mr. Merlo, or Mr. Pietrzak is the beneficial owner of such shares of Common Stock for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, or for any other purpose. CASTLE CREEK CAPITAL PARTNERS IV, LP, By: /s/ John M. Eggemeyer III, Title: President 2015-11-18 CASTLE CREEK CAPITAL IV LLC, By: /s/ John M. Eggemeyer III, Title: President 2015-11-18 JOHN M. EGGEMEYER III, By: /s/ John M. Eggemeyer III 2015-11-18 J. MIKESELL THOMAS, By: /s/ J. Mikesell Thomas 2015-11-18 MARK G. MERLO, By: /s/ Mark G. Merlo 2015-11-18 JOHN T. PIETRZAK, By: /s/ John T. Pietrzak 2015-11-18