X0306 4 2020-01-02 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 299544 D Common Stock 208192 I Richard H. Jones Revocable Trust Common Stock 2020-01-02 4 S 0 8000 80.01 D 151010 I Patricia Jones Revocable Trust Common Stock 2020-01-02 4 S 0 3000 80.16 D 148010 I Patricia Jones Revocable Trust Common Stock 2020-01-02 4 S 0 3000 80.22 D 145010 I Patricia Jones Revocable Trust Common Stock 47590 I Jones Family Foundation Sold pursuant to a pre-arranged stock trading plan under rule 10b5-1 of the Securities Exchange Act of 1934, as amended. Represents the weighted average of the sale prices January 2, 2020, ranging from $80.06 to $80.41. The individual has provided to the Company, and undertakes to provide to the staff of the Securities and Exchange Commission or to any security holder of the Company, upon request, full information regarding the number of shares sold at each separate price. Represents the weighted average of the sale prices January 2, 2020, ranging from $80.07 to $80.39. The individual has provided to the Company, and undertakes to provide to the staff of the Securities and Exchange Commission or to 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. /s/ Janet Mesrobian, Esq., Attorney-in-Fact for Richard H. Jones 2020-01-03