X0306 4 2015-05-28 0 0001520300 ASB Bancorp Inc ASBB 0001258805 SMITH ALISON 11 CHURCH STREET ASHEVILLE NC 28801 1 0 0 0 COMMON STOCK 2015-05-28 4 P 0 4442 21.305 A 15442 D STOCK OPTION (RIGHT TO BUY) 18.84 2015-09-15 2024-09-15 COMMON STOCK 13500 13500 D The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $21.24 to $21.48, inclusive on May 28, 2015. The reporting person undertakes to provide to ASB Bancorp, Inc., any security holder of ASB Bancorp, Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the ranges set forth in this Form 4. Stock options vest in five equal installments beginning on September 15, 2015, the first anniversary of the date of the grant. /s/ Alison Smith by Nelson Mullins Law Firm with Power of Attorney 2015-06-01