X0306 4 2019-06-06 0 0001013857 PEGASYSTEMS INC PEGA 0001222574 JONES RICHARD H C/O PEGASYSTEMS INC. 1 ROGERS STREET CAMBRIDGE MA 02142 1 0 0 0 Common Stock 2019-06-06 4 S 0 1700 71.59 D 50890 I Jones Family Foundation Common Stock 2019-06-07 4 S 0 3300 70.71 D 47590 I Jones Family Foundation Common Stock 208192 I Richard H. Jones Revocable Trust Common Stock 199010 I Patricia Jones Revocable Trust Common Stock 189010 I Patricia Jones Revocable Trust Common Stock 298107 D Represents the weighted average of the sale prices, ranging from $71.50 to $71.67. The individual has provided the Company, and undertakes to provide to the staff of the Securities and Exchange Commission or any security holder of the Company, upon request, full information regarding the number of shares sold at each separate price. Shares owned by the Jones Family Foundation, of which Mr. Jones has no pecuniary interest. Represents the weighted average of the sale prices, ranging from $70.7 to $70.75. The individual has provided the Company, and undertakes to provide to the staff of the Securities and Exchange Commission or any security holder of the Company, upon request, full information regarding the number of shares sold at each separate price. /s/ Janet Mesrobian, Esq., Attorney-in-Fact for Richard H. Jones 2019-06-10