PEGA

SEC source: 0001915414-25-000004 · wk-form4_1757019156.xml · derivative · entry 12

Higgins John Gerard · CIK 0001915414 · Chief, Client &Partner Success

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 368

Underlying: Common stock · 184 shares

Expires 2026-03-01

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F7 · security: Each restricted stock unit represents the right to receive, following vesting, one share of the issuer's common stock.

F2 · shares: Represents a 5% vesting on September 1, 2025, with a release date of September 2, 2025, the first business day following vesting. The original grant was 1,842 restricted stock units, with 20% vesting on March 1, 2022, and the remaining 80% vesting in equal quarterly installments over the remaining four years.

F8 · balance_after: All share amounts in this Form 4 have been restated to reflect a 2-for-1 forward stock split of Pegasystems Inc.'s common stock effectuated on June 20, 2025.

SEC source: 0001915414-25-000004 · wk-form4_1757019156.xml · derivative · entry 11

Higgins John Gerard · CIK 0001915414 · Chief, Client &Partner Success

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,840

Underlying: Common stock · 920 shares

Expires 2026-03-01

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F7 · security: Each restricted stock unit represents the right to receive, following vesting, one share of the issuer's common stock.

F1 · shares: Represents a 5% vesting on September 1, 2025, with a release date of September 2, 2025, the first business day following vesting. The original grant was 9,207 restricted stock units, with 20% vesting on June 1, 2021, and the remaining 80% vesting in equal quarterly installments over the remaining four years.

F8 · balance_after: All share amounts in this Form 4 have been restated to reflect a 2-for-1 forward stock split of Pegasystems Inc.'s common stock effectuated on June 20, 2025.

SEC source: 0001915414-25-000004 · wk-form4_1757019156.xml · nonDerivative · entry 10

Higgins John Gerard · CIK 0001915414 · Chief, Client &Partner Success

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 40,168.762

F6 · balance_after: Beneficial ownership totals reflect Pegasystems Inc.'s 2-for-1 forward stock split effectuated on June 20, 2025, and a correction to the number of shares directly held, which was previously incorrectly reported as lower (on a pre-split basis) due to an administrative error. Includes shares acquired on June 30, 2025 pursuant to the employee stock purchase plan.

SEC source: 0001915414-25-000004 · wk-form4_1757019156.xml · nonDerivative · entry 9

Higgins John Gerard · CIK 0001915414 · Chief, Client &Partner Success

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 40,271.762

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F5 · shares: Represents a 5% vesting on September 1, 2025, with a release date of September 2, 2025, the first business day following vesting. The original grant was 1,845 restricted stock units, with 20% vesting on March 1, 2024, and the remaining 80% vesting in equal quarterly installments over the remaining four years.

SEC source: 0001915414-25-000004 · wk-form4_1757019156.xml · nonDerivative · entry 8

Higgins John Gerard · CIK 0001915414 · Chief, Client &Partner Success

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 40,087.762

SEC source: 0001915414-25-000004 · wk-form4_1757019156.xml · nonDerivative · entry 7

Higgins John Gerard · CIK 0001915414 · Chief, Client &Partner Success

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 40,662.762

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F4 · shares: Represents a 5% vesting on September 1, 2025, with a release date of September 2, 2025, the first business day following vesting. The original grant was 10,285 restricted stock units, with 20% vesting on March 1, 2023 and the remaining 80% vesting in equal quarterly installments over the remaining four years.

SEC source: 0001915414-25-000004 · wk-form4_1757019156.xml · nonDerivative · entry 6

Higgins John Gerard · CIK 0001915414 · Chief, Client &Partner Success

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 39,632.762

SEC source: 0001915414-25-000004 · wk-form4_1757019156.xml · nonDerivative · entry 5

Higgins John Gerard · CIK 0001915414 · Chief, Client &Partner Success

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 39,735.762

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F3 · shares: Represents a 5% vesting on September 1, 2025, with a release date of September 2, 2025, the first business day following vesting. The original grant was 1,844 restricted stock units, with 20% vesting on March 1, 2023, and the remaining 80% vesting in equal quarterly installments over the remaining four years.

SEC source: 0001915414-25-000004 · wk-form4_1757019156.xml · nonDerivative · entry 4

Higgins John Gerard · CIK 0001915414 · Chief, Client &Partner Success

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 39,551.762

SEC source: 0001915414-25-000004 · wk-form4_1757019156.xml · nonDerivative · entry 3

Higgins John Gerard · CIK 0001915414 · Chief, Client &Partner Success

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 39,654.762

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · shares: Represents a 5% vesting on September 1, 2025, with a release date of September 2, 2025, the first business day following vesting. The original grant was 1,842 restricted stock units, with 20% vesting on March 1, 2022, and the remaining 80% vesting in equal quarterly installments over the remaining four years.

SEC source: 0001915414-25-000004 · wk-form4_1757019156.xml · nonDerivative · entry 2

Higgins John Gerard · CIK 0001915414 · Chief, Client &Partner Success

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 39,470.762

SEC source: 0001915414-25-000004 · wk-form4_1757019156.xml · nonDerivative · entry 1

Higgins John Gerard · CIK 0001915414 · Chief, Client &Partner Success

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 39,984.762

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · shares: Represents a 5% vesting on September 1, 2025, with a release date of September 2, 2025, the first business day following vesting. The original grant was 9,207 restricted stock units, with 20% vesting on June 1, 2021, and the remaining 80% vesting in equal quarterly installments over the remaining four years.

SEC source: 0001855325-25-000004 · wk-form4_1757018975.xml · derivative · entry 8

Akgonul Rifat Kerim · CIK 0001855325 · Chief Product Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 7,052

Underlying: Common stock · 1,176 shares

Expires 2027-03-01

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F6 · security: Each restricted stock unit represents the right to receive, following vesting, one share of the issuer's common stock.

F1 · shares: Represents a 5% vesting on September 1, 2025, with a release date of September 2, 2025, the first business day following vesting. The original grant was 11,754 restricted stock units, with a 20% vesting on March 1, 2023, with the remaining 80% vesting in equal quarterly installments over the remaining four years.

F7 · balance_after: All share amounts in this Form 4 have been restated to reflect a 2-for-1 forward stock split of Pegasystems Inc.'s common stock effectuated on June 20, 2025.

SEC source: 0001855325-25-000004 · wk-form4_1757018975.xml · nonDerivative · entry 2

Akgonul Rifat Kerim · CIK 0001855325 · Chief Product Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 79,167

SEC source: 0001855325-25-000004 · wk-form4_1757018975.xml · nonDerivative · entry 1

Akgonul Rifat Kerim · CIK 0001855325 · Chief Product Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 79,736

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · shares: Represents a 5% vesting on September 1, 2025, with a release date of September 2, 2025, the first business day following vesting. The original grant was 11,754 restricted stock units, with a 20% vesting on March 1, 2023, with the remaining 80% vesting in equal quarterly installments over the remaining four years.

SEC source: 0001330532-25-000005 · wk-form4_1755635467.xml · derivative · entry 2

WEBER LARRY · CIK 0001330532 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 5,168

Underlying: Common stock · 5,168 shares

Expires 2035-08-15

F3 · shares: Non-statutory stock option fully vested on issuance and granted as consideration for the reporting person's services as a Director for the annual term.

SEC source: 0001330532-25-000005 · wk-form4_1755635467.xml · nonDerivative · entry 1

WEBER LARRY · CIK 0001330532 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 13,268

F1 · shares: Represents shares of unrestricted common stock received as consideration for the reporting person's service as a Director of the annual term.

F2 · balance_after: Total shares beneficially owned reflect a 2-for-1 stock split effected on June 20, 2025.

SEC source: 0001684701-25-000004 · wk-form4_1755635323.xml · derivative · entry 3

LEDINGHAM DIANNE · CIK 0001684701 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 5,168

Underlying: Common stock · 5,168 shares

Expires 2035-08-15

F3 · shares: Non-statutory stock options fully vested on issuance and granted as consideration for the reporting person's services as a Director for the annual term.

SEC source: 0001684701-25-000004 · wk-form4_1755635323.xml · nonDerivative · entry 2

LEDINGHAM DIANNE · CIK 0001684701 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,374

F2 · shares: Represents shares of unrestricted common stock received as consideration for the reporting person's service as a Director for the annual term.

SEC source: 0001431927-25-000004 · wk-form4_1755635143.xml · derivative · entry 2

Rowlands Sharon T · CIK 0001431927 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 5,168

Underlying: Common stock · 5,168 shares

Expires 2035-08-15

F3 · shares: Non-statutory stock option fully vested on issuance and granted as consideration for the reporting person's services as a Director for the annual term.

SEC source: 0001431927-25-000004 · wk-form4_1755635143.xml · nonDerivative · entry 1

Rowlands Sharon T · CIK 0001431927 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 67,730

F1 · shares: Represents shares of unrestricted common stock received as consideration for the reporting person's service as a Director for the annual term.

F2 · balance_after: Total shares beneficially owned reflect a 2-for-1 stock split effected on June 20, 2025.

SEC source: 0001222574-25-000004 · wk-form4_1755634861.xml · derivative · entry 5

JONES RICHARD H · CIK 0001222574 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 5,168

Underlying: Common stock · 5,168 shares

Expires 2035-08-15

F3 · shares: Non-statutory stock options fully vested on issuance and granted as consideration for the reporting person's services as a Director for the annual term.

SEC source: 0001222574-25-000004 · wk-form4_1755634861.xml · nonDerivative · entry 4

JONES RICHARD H · CIK 0001222574 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 49,726

F2 · shares: Represents shares of unrestricted common stock received as consideration for the reporting person's service as a Director for the annual term.

F1 · balance_after: Total shares beneficially owned reflect a 2-for-1 stock split effected on June 20, 2025.

SEC source: 0001265668-25-000005 · wk-form4_1755634952.xml · derivative · entry 2

LAFOND CHRISTOPHER · CIK 0001265668 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 5,168

Underlying: Common stock · 5,168 shares

Expires 2035-08-15

F3 · shares: Non-statutory stock option fully vested on issuance and granted as consideration for the reporting person's service as a director for the annual term.

SEC source: 0001265668-25-000005 · wk-form4_1755634952.xml · nonDerivative · entry 1

LAFOND CHRISTOPHER · CIK 0001265668 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 21,680

F1 · shares: Represents shares of unrestricted common stock received as consideration for the reporting person's service as a director for the annual term.

F2 · balance_after: Total shares beneficially owned reflect a 2-for-1 stock split effected on June 20, 2025.

SEC source: 0001184792-25-000004 · wk-form4_1755634712.xml · derivative · entry 2

GYENES PETER · CIK 0001184792 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 5,168

Underlying: Common stock · 5,168 shares

Expires 2035-08-15

F3 · shares: Non-statutory stock option fully vested on issuance and granted as consideration for the reporting person's services as a Director for the annual term.

SEC source: 0001184792-25-000004 · wk-form4_1755634712.xml · nonDerivative · entry 1

GYENES PETER · CIK 0001184792 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 26,718

F1 · shares: Represents shares of unrestricted common stock received as consideration for the reporting person's service as a Director for the annual term.

F2 · balance_after: Total shares beneficially owned reflect a 2-for-1 stock split effected on June 20, 2025.

SEC source: 0001960794-25-000007 · wk-form4_1755634555.xml · derivative · entry 2

Ghai Rohit · CIK 0001960794 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 5,168

Underlying: Common stock · 5,168 shares

Expires 2035-08-15

F3 · shares: Non-statutory stock option fully vested on issuance and granted as consideration for the reporting person's services as a Director for the annual term.

SEC source: 0001960794-25-000007 · wk-form4_1755634555.xml · nonDerivative · entry 1

Ghai Rohit · CIK 0001960794 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,398

F1 · shares: Represents shares of unrestricted common stock received as consideration for the reporting person's service as a Director for the annual term.

F2 · balance_after: Total shares beneficially owned reflect a 2-for-1 stock split effected on June 20, 2025.

SEC source: 0001032235-25-000006 · wk-form4_1754600952.xml · nonDerivative · entry 8

TREFLER ALAN · CIK 0001032235 · Director · C.E.O. & Chairman · 10% owner

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 32,916,692

F1 · shares: Sold pursuant to a pre-arranged trading plan adopted by Mr. Trefler November 6, 2024 under Rule 10b5-1 of the Securities Exchange Act of 1934, as amended.

F4 · price: Represents the weighted average of sale prices, ranging from $56.86 to $57.69. The individual has provided the Company, and undertakes to provide to the staff of the Security and Exchange Commission or any security holder of the Company, upon request, full information regarding the number of shares sold at each separate price.

SEC source: 0001032235-25-000006 · wk-form4_1754600952.xml · nonDerivative · entry 7

TREFLER ALAN · CIK 0001032235 · Director · C.E.O. & Chairman · 10% owner

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 32,961,692

F1 · shares: Sold pursuant to a pre-arranged trading plan adopted by Mr. Trefler November 6, 2024 under Rule 10b5-1 of the Securities Exchange Act of 1934, as amended.

F3 · price: Represents the weighted average of sale prices, ranging from $57.94 to $58.75. The individual has provided the Company, and undertakes to provide to the staff of the Security and Exchange Commission or any security holder of the Company, upon request, full information regarding the number of shares sold at each separate price.

SEC source: 0001032235-25-000006 · wk-form4_1754600952.xml · nonDerivative · entry 6

TREFLER ALAN · CIK 0001032235 · Director · C.E.O. & Chairman · 10% owner

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 32,969,156

F1 · shares: Sold pursuant to a pre-arranged trading plan adopted by Mr. Trefler November 6, 2024 under Rule 10b5-1 of the Securities Exchange Act of 1934, as amended.

F2 · price: Represents the weighted average of sale prices, ranging from $56.94 to $57.93. The individual has provided the Company, and undertakes to provide to the staff of the Security and Exchange Commission or any security holder of the Company, upon request, full information regarding the number of shares sold at each separate price.

SEC source: 0001680115-25-000006 · wk-form4_1754428157.xml · derivative · entry 6

STILLWELL KENNETH · CIK 0001680115 · COO, CFO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 129,600

Underlying: Common stock · 25,920 shares

Expires 2032-11-02

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F4 · shares: All share amounts and price data in this Form 4 have been restated to reflect a 2-for-1 forward stock split of Pegasystems Inc.'s common stock effectuated on June 20, 2025.

F5 · derivative.exercise_date: Option vests in 16 equal quarterly installments over four years beginning on the Date Exercisable in Table II.

SEC source: 0001680115-25-000006 · wk-form4_1754428157.xml · nonDerivative · entry 5

STILLWELL KENNETH · CIK 0001680115 · COO, CFO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 119,868

F3 · price: Represents the weighted average of sale prices, ranging from $58.17 to $58.27. The individual has provided the Company, and undertakes to provide to the staff of the Security and Exchange Commission or any security holder of the Company, upon request, full information regarding the number of shares sold at each separate price.

SEC source: 0001680115-25-000006 · wk-form4_1754428157.xml · nonDerivative · entry 4

STILLWELL KENNETH · CIK 0001680115 · COO, CFO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 131,015

SEC source: 0001680115-25-000006 · wk-form4_1754428157.xml · nonDerivative · entry 3

STILLWELL KENNETH · CIK 0001680115 · COO, CFO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 145,788

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

SEC source: 0001680115-25-000006 · wk-form4_1754428157.xml · nonDerivative · entry 2

STILLWELL KENNETH · CIK 0001680115 · COO, CFO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 119,868

F1 · shares: Sold pursuant to a pre-arranged trading plan adopted by Mr. Stillwell August 29, 2024 under Rule 10b5-1 of the Securities Exchange Act of 1934, as amended.

SEC source: 0001680115-25-000006 · wk-form4_1754428157.xml · nonDerivative · entry 1

STILLWELL KENNETH · CIK 0001680115 · COO, CFO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 119,968

F1 · shares: Sold pursuant to a pre-arranged trading plan adopted by Mr. Stillwell August 29, 2024 under Rule 10b5-1 of the Securities Exchange Act of 1934, as amended.

F2 · price: Represents the weighted average of sale prices, ranging from $57.20 to $58.14. The individual has provided the Company, and undertakes to provide to the staff of the Security and Exchange Commission or any security holder of the Company, upon request, full information regarding the number of shares sold at each separate price.

SEC source: 0001353196-25-000004 · wk-form4_1753820319.xml · nonDerivative · entry 1

KOUNINIS EFSTATHIOS A · CIK 0001353196 · SVP of Finance & CAO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

F1 · balance_after: Total shares beneficially owned reflect a 2-for-1 stock split effectuated on June 20, 2025.

SEC source: 0001680115-25-000004 · wk-form4_1753823013.xml · derivative · entry 3

STILLWELL KENNETH · CIK 0001680115 · COO, CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common stock · 220,000 shares

Expires 2032-06-05

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · shares: All share amounts and price data in this Form 4 have been restated to reflect a 2-for-1 forward stock split of Pegasystems Inc.'s common stock effectuated on June 20, 2025.

F2 · derivative.exercise_date: Options vested 33% on the Date Exercisable in Table II, with the remaining 67% vesting in equal quarterly amounts over the next two years.

SEC source: 0001680115-25-000004 · wk-form4_1753823013.xml · nonDerivative · entry 2

STILLWELL KENNETH · CIK 0001680115 · COO, CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 123,868

SEC source: 0001680115-25-000004 · wk-form4_1753823013.xml · nonDerivative · entry 1

STILLWELL KENNETH · CIK 0001680115 · COO, CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 269,350

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

SEC source: 0001628280-25-036226 · wk-form4_1753736607.xml · derivative · entry 4

Akgonul Rifat Kerim · CIK 0001855325 · Chief Product Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common stock · 31,068 shares

Expires 2027-03-02

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F3 · shares: All share amounts and price data in this Form 4 have been restated to reflect a 2-for-1 forward stock split of Pegasystems Inc.'s common stock effectuated on June 20, 2025.

F4 · derivative.exercise_date: Options vested 20% on the Date Exercisable in Table II, with the remaining 80% vesting in equal quarterly amounts over the next four years.

SEC source: 0001628280-25-036226 · wk-form4_1753736607.xml · nonDerivative · entry 3

Akgonul Rifat Kerim · CIK 0001855325 · Chief Product Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 78,560

F1 · price: Represents the weighted average of sale prices, ranging from $57.80 to $57.82. The individual has provided the Company, and undertakes to provide to the staff of the Security and Exchange Commission or any security holder of the Company, upon request, full information regarding the number of shares sold at each separate price.

F2 · balance_after: Total shares beneficially owned reflect a 2-for-1 stock split effectuated on June 20, 2025. Includes shares acquired on June 30, 2025 pursuant to the employee stock purchase plan.

SEC source: 0001628280-25-036226 · wk-form4_1753736607.xml · nonDerivative · entry 2

Akgonul Rifat Kerim · CIK 0001855325 · Chief Product Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 88,439

SEC source: 0001628280-25-036226 · wk-form4_1753736607.xml · nonDerivative · entry 1

Akgonul Rifat Kerim · CIK 0001855325 · Chief Product Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 109,628

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

SEC source: 0001013857-25-000201 · wk-form4_1752527445.xml · nonDerivative · entry 7

TREFLER ALAN · CIK 0001032235 · Director · C.E.O. & Chairman · 10% owner

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 33,006,692

F1 · shares: Sold pursuant to a pre-arranged trading plan adopted by Mr. Trefler November 6, 2024 under Rule 10b5-1 of the Securities Exchange Act of 1934, as amended.

F3 · price: Represents the weighted average of sale prices, ranging from $51.98 to $52.82. The individual has provided the Company, and undertakes to provide to the staff of the Security and Exchange Commission or any security holder of the Company, upon request, full information regarding the number of shares sold at each separate price.

SEC source: 0001013857-25-000201 · wk-form4_1752527445.xml · nonDerivative · entry 6

TREFLER ALAN · CIK 0001032235 · Director · C.E.O. & Chairman · 10% owner

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 33,018,928

F1 · shares: Sold pursuant to a pre-arranged trading plan adopted by Mr. Trefler November 6, 2024 under Rule 10b5-1 of the Securities Exchange Act of 1934, as amended.

F2 · price: Represents the weighted average of sale prices, ranging from $50.98 to $51.97. The individual has provided the Company, and undertakes to provide to the staff of the Security and Exchange Commission or any security holder of the Company, upon request, full information regarding the number of shares sold at each separate price.

SEC source: 0001013857-25-000199 · wk-form4_1752268142.xml · nonDerivative · entry 6

TREFLER ALAN · CIK 0001032235 · Director · C.E.O. & Chairman · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 33,051,692

F1 · shares: Sold pursuant to a pre-arranged trading plan adopted by Mr. Trefler November 6, 2024 under Rule 10b5-1 of the Securities Exchange Act of 1934, as amended.

F2 · price: Represents the weighted average of sale prices, ranging from $53.04 to $53.95. The individual has provided the Company, and undertakes to provide to the staff of the Security and Exchange Commission or any security holder of the Company, upon request, full information regarding the number of shares sold at each separate price.

F3 · balance_after: Beneficial ownership totals reflect Pegasystems Inc.'s 2-for-1 forward stock split effectuated on June 20, 2025, and a correction to the number of shares directly held, which was previously incorrectly reported as higher (on a pre-split basis) due to an administrative error.

SEC source: 0001013857-25-000195 · wk-form4_1751577032.xml · nonDerivative · entry 2

STILLWELL KENNETH · CIK 0001680115 · COO, CFO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 49,350

F1 · shares: Sold pursuant to a pre-arranged trading plan adopted by Mr. Stillwell August 29, 2024 under Rule 10b5-1 of the Securities Exchange Act of 1934, as amended.

F3 · price: Represents the weighted average of sale prices, ranging from $53.05 to $53.94. The individual has provided the Company, and undertakes to provide to the staff of the Security and Exchange Commission or any security holder of the Company, upon request, full information regarding the number of shares sold at each separate price.

F4 · balance_after: Total shares beneficially owned reflect a 2-for-1 stock split effectuated on June 20, 2025. Includes shares acquired on June 30, 2025 pursuant to the employee stock purchase plan.