X0306 4 2019-03-04 0 0001013857 PEGASYSTEMS INC PEGA 0001222579 PYLE MICHAEL R C/O PEGASYSTEMS INC. 1 ROGERS STREET CAMBRIDGE MA 02142 0 1 0 0 Senior VP, Engineering Common Stock 2019-03-04 4 M 0 558 0.00 A 1610 D Common Stock 2019-03-04 4 F 0 165 66.32 D 1445 D Common Stock 2019-03-04 4 M 0 2267 0.00 A 3712 D Common Stock 2019-03-04 4 F 0 720 66.32 D 2992 D Common Stock 2019-03-05 4 M 0 2550 0.00 A 5542 D Common Stock 2019-03-05 4 F 0 751 64.84 D 4791 D Common Stock 2019-03-05 4 M 0 2221 0.00 A 7012 D Common Stock 2019-03-05 4 F 0 655 64.84 D 6357 D Restricted Stock Units 0.00 2019-03-04 4 M 0 558 0.00 D 2016-03-02 Common Stock 558 3900 D Restricted Stock Units 0.00 2019-03-04 4 M 0 2267 0.00 D 2018-03-02 Common Stock 2267 0 D Restricted Stock Units 0.00 2019-03-05 4 M 0 2550 0.00 D 2019-03-05 Common Stock 2550 2550 D Restricted Stock Units 0.00 2019-03-05 4 M 0 2221 0.00 D 2019-03-05 Common Stock 2221 0 D Represents 5% vesting on March 2, 2019, with a release date of March 4, 2019, the first business day following the vesting. The original grant was 11,145 restricted stock units, with a 20% vesting on March 2, 2016, and the remaining 80% vesting in equal quarterly installments over the remaining 4 years. Represents 50% vesting on March 2, 2019, with a release date of March 4, 2019, the first business day following the vesting. The original grant was 4,534 restricted stock units, with 50% vesting on March 2, 2018, and the remaining 50% vesting on March 2, 2019. Represents 50% vesting on March 5, 2019. The original grant was 5,100 restricted stock units, with 50% vesting on March 5, 2019, and the remaining 50% vesting on March 5, 2020. Represents 100% vesting on March 5, 2019. The original grant was 2,221 restricted stock units, which were granted on March 5, 2018. As part of the Company's 2018 Corporate Incentive Plan (CICP), Mr. Pyle elected to receive his annual bonus in RSUs. Does not include shares of common stock subject to unvested restricted stock units and/or options awards. Each restricted stock unit represents the right to receive, following vesting, one share of the issuer's common stock. Once vested, the shares of common stock are not subject to expiration. /s/ Janet Mesrobian, Esq., Attorney-In-Fact for Michael Pyle 2019-03-06