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KOUNINIS EFSTATHIOS A

Disclosed activity across 1 company

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SEC CIK
0001353196

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Reported relationships

Latest disclosed role at each company.

CompanyLast reported asReport datePublished
PEGASYSTEMS INCPEGA · Entity 309SVP, Chief Accounting OfficerSeptember 16, 2026September 17, 2026

Disclosed balances

About these balances

Latest available filing per company, not a reconstructed current portfolio. Matching sequences show the last reported balance with all source rows expandable; grouping alone does not establish account ownership. Do not add unresolved positions together. Filings may omit unchanged positions, and amendments may correct only part of an older disclosure. Jointly reported shares are not necessarily this owner's personal holdings.

PEGASYSTEMS INC

Report date September 16, 2026 · Filed September 17, 2026

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Common stockSEC Table I · non-derivativeDirect1,009 Reported balance After 2026-09-16 transaction · row 1
1 source row

Row 1 · 2026-09-16 · Sale · Disposed 982 · Balance 1,009

Transaction history

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Purchases/sales include open-market and private transactions. Plan disclosure applies to the filing; individual rows may differ. “Not disclosed” is not “unplanned.”

The cutoff filters transaction history only. Company summaries and owner relationships show the latest available disclosures. Parser corrections can improve historical records.

Transaction dateCompanyActivity / securityShares / unitsReported priceReported valueDetails
September 16, 2026 Filed Sep 17, 2026 20:08 UTC PEGASYSTEMS INC PEGA · Entity 309 SaleCommon stock 982 $37.35 $36,677.70
Disclosure

SEC source: 0001353196-26-000030 · wk-form4_1789675734.xml · nonDerivative · entry 1

KOUNINIS EFSTATHIOS A · CIK 0001353196 · SVP, Chief Accounting Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,009

Read SEC document
September 07, 2026 Filed Sep 9, 2026 21:36 UTC PEGASYSTEMS INC PEGA · Entity 309 Exercise / conversionRestricted Stock Units · Derivative 334 $0.00 Strike: $0.00 $0.00
Disclosure

SEC source: 0001353196-26-000028 · wk-form4_1788989782.xml · derivative · entry 9

KOUNINIS EFSTATHIOS A · CIK 0001353196 · SVP, Chief Accounting Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 664

Underlying: Common stock · 334 shares

Expires 2027-03-07

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: Each restricted stock unit represents the right to receive, following vesting, one share of common stock.

F2 · derivative.exercise_date: 25% of the restricted stock units vested on the Date Exercisable in Table II, and the remaining 75% vest in equal quarterly installments over the following three years.

Read SEC document
September 07, 2026 Filed Sep 9, 2026 21:36 UTC PEGASYSTEMS INC PEGA · Entity 309 Tax withholdingCommon stock 82 $37.36 $3,063.52
Disclosure

SEC source: 0001353196-26-000028 · wk-form4_1788989782.xml · nonDerivative · entry 6

KOUNINIS EFSTATHIOS A · CIK 0001353196 · SVP, Chief Accounting Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,991

Read SEC document
September 07, 2026 Filed Sep 9, 2026 21:36 UTC PEGASYSTEMS INC PEGA · Entity 309 Exercise / conversionCommon stock 334 $0.00 $0.00
Disclosure

SEC source: 0001353196-26-000028 · wk-form4_1788989782.xml · nonDerivative · entry 5

KOUNINIS EFSTATHIOS A · CIK 0001353196 · SVP, Chief Accounting Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,073

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.

Read SEC document
September 05, 2026 Filed Sep 9, 2026 21:36 UTC PEGASYSTEMS INC PEGA · Entity 309 Exercise / conversionRestricted Stock Units · Derivative 440 $0.00 Strike: $0.00 $0.00
Disclosure

SEC source: 0001353196-26-000028 · wk-form4_1788989782.xml · derivative · entry 8

KOUNINIS EFSTATHIOS A · CIK 0001353196 · SVP, Chief Accounting Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,642

Underlying: Common stock · 440 shares

Expires 2028-03-05

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: Each restricted stock unit represents the right to receive, following vesting, one share of common stock.

F2 · derivative.exercise_date: 25% of the restricted stock units vested on the Date Exercisable in Table II, and the remaining 75% vest in equal quarterly installments over the following three years.

Read SEC document
September 05, 2026 Filed Sep 9, 2026 21:36 UTC PEGASYSTEMS INC PEGA · Entity 309 Tax withholdingCommon stock 108 $37.36 $4,034.88
Disclosure

SEC source: 0001353196-26-000028 · wk-form4_1788989782.xml · nonDerivative · entry 4

KOUNINIS EFSTATHIOS A · CIK 0001353196 · SVP, Chief Accounting Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,739

Read SEC document
September 05, 2026 Filed Sep 9, 2026 21:36 UTC PEGASYSTEMS INC PEGA · Entity 309 Exercise / conversionCommon stock 440 $0.00 $0.00
Disclosure

SEC source: 0001353196-26-000028 · wk-form4_1788989782.xml · nonDerivative · entry 3

KOUNINIS EFSTATHIOS A · CIK 0001353196 · SVP, Chief Accounting Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,847

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.

Read SEC document
September 04, 2026 Filed Sep 9, 2026 21:36 UTC PEGASYSTEMS INC PEGA · Entity 309 Exercise / conversionRestricted Stock Units · Derivative 322 $0.00 Strike: $0.00 $0.00
Disclosure

SEC source: 0001353196-26-000028 · wk-form4_1788989782.xml · derivative · entry 7

KOUNINIS EFSTATHIOS A · CIK 0001353196 · SVP, Chief Accounting Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,232

Underlying: Common stock · 322 shares

Expires 2029-03-04

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: Each restricted stock unit represents the right to receive, following vesting, one share of common stock.

F2 · derivative.exercise_date: 25% of the restricted stock units vested on the Date Exercisable in Table II, and the remaining 75% vest in equal quarterly installments over the following three years.

Read SEC document
September 04, 2026 Filed Sep 9, 2026 21:36 UTC PEGASYSTEMS INC PEGA · Entity 309 Tax withholdingCommon stock 79 $37.72 $2,979.88
Disclosure

SEC source: 0001353196-26-000028 · wk-form4_1788989782.xml · nonDerivative · entry 2

KOUNINIS EFSTATHIOS A · CIK 0001353196 · SVP, Chief Accounting Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,407

Read SEC document
September 04, 2026 Filed Sep 9, 2026 21:36 UTC PEGASYSTEMS INC PEGA · Entity 309 Exercise / conversionCommon stock 322 $0.00 $0.00
Disclosure

SEC source: 0001353196-26-000028 · wk-form4_1788989782.xml · nonDerivative · entry 1

KOUNINIS EFSTATHIOS A · CIK 0001353196 · SVP, Chief Accounting Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,486

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.

Read SEC document
September 03, 2026 Filed Sep 3, 2026 21:03 UTC PEGASYSTEMS INC PEGA · Entity 309 Exercise / conversionStock Options · Derivative 2,500 $0.00 Strike: $16.95 $0.00
Disclosure

SEC source: 0001353196-26-000026 · wk-form4_1788469427.xml · derivative · entry 4

KOUNINIS EFSTATHIOS A · CIK 0001353196 · SVP, Chief Accounting Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 6,800

Underlying: Common stock · 2,500 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.

F1 · derivative.exercise_date: Options will vest in equal quarterly amounts over a four year period with the first vest occurring on February 2, 2023.

Read SEC document
September 03, 2026 Filed Sep 3, 2026 21:03 UTC PEGASYSTEMS INC PEGA · Entity 309 SaleCommon stock 1,063 $38.75 $41,191.25
Disclosure

SEC source: 0001353196-26-000026 · wk-form4_1788469427.xml · nonDerivative · entry 3

KOUNINIS EFSTATHIOS A · CIK 0001353196 · SVP, Chief Accounting Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,164

Read SEC document
September 03, 2026 Filed Sep 3, 2026 21:03 UTC PEGASYSTEMS INC PEGA · Entity 309 Tax withholdingCommon stock 1,437 $38.75 $55,683.75
Disclosure

SEC source: 0001353196-26-000026 · wk-form4_1788469427.xml · nonDerivative · entry 2

KOUNINIS EFSTATHIOS A · CIK 0001353196 · SVP, Chief Accounting Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,227

Read SEC document
September 03, 2026 Filed Sep 3, 2026 21:03 UTC PEGASYSTEMS INC PEGA · Entity 309 Exercise / conversionCommon stock 2,500 $16.95 $42,375.00
Disclosure

SEC source: 0001353196-26-000026 · wk-form4_1788469427.xml · nonDerivative · entry 1

KOUNINIS EFSTATHIOS A · CIK 0001353196 · SVP, Chief Accounting Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,664

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.

Read SEC document
September 01, 2026 Filed Sep 2, 2026 20:03 UTC PEGASYSTEMS INC PEGA · Entity 309 Exercise / conversionRestricted Stock Units · Derivative 206 $0.00 Strike: $0.00 $0.00
Disclosure

SEC source: 0001353196-26-000024 · wk-form4_1788379406.xml · derivative · entry 7

KOUNINIS EFSTATHIOS A · CIK 0001353196 · SVP, Chief Accounting Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 412

Underlying: Common stock · 206 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.

F2 · shares: Each restricted stock unit represents the right to receive, following vesting, one share of common stock.

F3 · derivative.exercise_date: 20% of the restricted stock units vested on the Date Exercisable in Table II, and the remaining 80% vest in equal quarterly installments over the following four years.

Read SEC document
September 01, 2026 Filed Sep 2, 2026 20:03 UTC PEGASYSTEMS INC PEGA · Entity 309 Tax withholdingCommon stock 51 $36.81 $1,877.31
Disclosure

SEC source: 0001353196-26-000024 · wk-form4_1788379406.xml · nonDerivative · entry 5

KOUNINIS EFSTATHIOS A · CIK 0001353196 · SVP, Chief Accounting Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,164

Read SEC document
September 01, 2026 Filed Sep 2, 2026 20:03 UTC PEGASYSTEMS INC PEGA · Entity 309 Exercise / conversionCommon stock 206 $0.00 $0.00
Disclosure

SEC source: 0001353196-26-000024 · wk-form4_1788379406.xml · nonDerivative · entry 4

KOUNINIS EFSTATHIOS A · CIK 0001353196 · SVP, Chief Accounting Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,215

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.

Read SEC document
August 31, 2026 Filed Sep 2, 2026 20:03 UTC PEGASYSTEMS INC PEGA · Entity 309 Exercise / conversionStock Options · Derivative 2,500 $0.00 Strike: $16.95 $0.00
Disclosure

SEC source: 0001353196-26-000024 · wk-form4_1788379406.xml · derivative · entry 6

KOUNINIS EFSTATHIOS A · CIK 0001353196 · SVP, Chief Accounting Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 9,300

Underlying: Common stock · 2,500 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.

F1 · derivative.exercise_date: Options will vest in equal quarterly amounts over a four year period with the first vest occurring on February 2, 2023.

Read SEC document
August 31, 2026 Filed Sep 2, 2026 20:03 UTC PEGASYSTEMS INC PEGA · Entity 309 SaleCommon stock 1,012 $36.50 $36,938.00
Disclosure

SEC source: 0001353196-26-000024 · wk-form4_1788379406.xml · nonDerivative · entry 3

KOUNINIS EFSTATHIOS A · CIK 0001353196 · SVP, Chief Accounting Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,009

Read SEC document
August 31, 2026 Filed Sep 2, 2026 20:03 UTC PEGASYSTEMS INC PEGA · Entity 309 Tax withholdingCommon stock 1,488 $36.50 $54,312.00
Disclosure

SEC source: 0001353196-26-000024 · wk-form4_1788379406.xml · nonDerivative · entry 2

KOUNINIS EFSTATHIOS A · CIK 0001353196 · SVP, Chief Accounting Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,021

Read SEC document
August 31, 2026 Filed Sep 2, 2026 20:03 UTC PEGASYSTEMS INC PEGA · Entity 309 Exercise / conversionCommon stock 2,500 $16.95 $42,375.00
Disclosure

SEC source: 0001353196-26-000024 · wk-form4_1788379406.xml · nonDerivative · entry 1

KOUNINIS EFSTATHIOS A · CIK 0001353196 · SVP, Chief Accounting Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,509

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.

Read SEC document
August 10, 2026 Filed Aug 11, 2026 20:06 UTC PEGASYSTEMS INC PEGA · Entity 309 SaleCommon stock 860 $33.10 $28,466.00
Disclosure

SEC source: 0001353196-26-000022 · wk-form4_1786478781.xml · nonDerivative · entry 2

KOUNINIS EFSTATHIOS A · CIK 0001353196 · SVP, Chief Accounting Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,009

Read SEC document
August 07, 2026 Filed Aug 11, 2026 20:06 UTC PEGASYSTEMS INC PEGA · Entity 309 SaleCommon stock 860 $32.30 $27,778.00
Disclosure

SEC source: 0001353196-26-000022 · wk-form4_1786478781.xml · nonDerivative · entry 1

KOUNINIS EFSTATHIOS A · CIK 0001353196 · SVP, Chief Accounting Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,869

Read SEC document
June 16, 2026 Filed Jun 18, 2026 12:43 UTC PEGASYSTEMS INC PEGA · Entity 309 SaleCommon stock 100 $32.32 $3,231.50
Disclosure

SEC source: 0001353196-26-000020 · wk-form4_1781786593.xml · nonDerivative · entry 2

KOUNINIS EFSTATHIOS A · CIK 0001353196 · SVP, Chief Accounting Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,376

Read SEC document
June 16, 2026 Filed Jun 18, 2026 12:43 UTC PEGASYSTEMS INC PEGA · Entity 309 SaleCommon stock 650 $32.31 $21,003.84
Disclosure

SEC source: 0001353196-26-000020 · wk-form4_1781786593.xml · nonDerivative · entry 1

KOUNINIS EFSTATHIOS A · CIK 0001353196 · SVP, Chief Accounting Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,476

Read SEC document
June 07, 2026 Filed Jun 9, 2026 20:20 UTC PEGASYSTEMS INC PEGA · Entity 309 Exercise / conversionRestricted Stock Units · Derivative 332 $0.00 Strike: $0.00 $0.00
Disclosure

SEC source: 0001353196-26-000018 · wk-form4_1781036434.xml · derivative · entry 3

KOUNINIS EFSTATHIOS A · CIK 0001353196 · SVP, Chief Accounting Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 998

Underlying: Common stock · 332 shares

Expires 2027-03-07

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

F2 · derivative.exercise_date: This restricted stock unit award vested 25% on the Date Exercisable in Table II, with the remaining 75% vesting in equal quarterly amounts over the remaining 3 years.

Read SEC document
June 07, 2026 Filed Jun 9, 2026 20:20 UTC PEGASYSTEMS INC PEGA · Entity 309 Tax withholdingCommon stock 81 $34.71 $2,811.51
Disclosure

SEC source: 0001353196-26-000018 · wk-form4_1781036434.xml · nonDerivative · entry 2

KOUNINIS EFSTATHIOS A · CIK 0001353196 · SVP, Chief Accounting Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,126

Read SEC document
June 07, 2026 Filed Jun 9, 2026 20:20 UTC PEGASYSTEMS INC PEGA · Entity 309 Exercise / conversionCommon stock 332 $0.00 $0.00
Disclosure

SEC source: 0001353196-26-000018 · wk-form4_1781036434.xml · nonDerivative · entry 1

KOUNINIS EFSTATHIOS A · CIK 0001353196 · SVP, Chief Accounting Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,207

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.

Read SEC document
June 05, 2026 Filed Jun 8, 2026 20:08 UTC PEGASYSTEMS INC PEGA · Entity 309 Exercise / conversionRestricted Stock Units · Derivative 440 $0.00 Strike: $0.00 $0.00
Disclosure

SEC source: 0001353196-26-000016 · wk-form4_1780949334.xml · derivative · entry 6

KOUNINIS EFSTATHIOS A · CIK 0001353196 · SVP, Chief Accounting Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,082

Underlying: Common stock · 440 shares

Expires 2028-03-05

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

F2 · derivative.exercise_date: 25% of the restricted stock units vested on the Date Exercisable in Table II, and the remaining 75% vest in equal quarterly installments over the following three years.

Read SEC document
June 05, 2026 Filed Jun 8, 2026 20:08 UTC PEGASYSTEMS INC PEGA · Entity 309 Tax withholdingCommon stock 108 $35.44 $3,827.52
Disclosure

SEC source: 0001353196-26-000016 · wk-form4_1780949334.xml · nonDerivative · entry 4

KOUNINIS EFSTATHIOS A · CIK 0001353196 · SVP, Chief Accounting Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,875

Read SEC document
June 05, 2026 Filed Jun 8, 2026 20:08 UTC PEGASYSTEMS INC PEGA · Entity 309 Exercise / conversionCommon stock 440 $0.00 $0.00
Disclosure

SEC source: 0001353196-26-000016 · wk-form4_1780949334.xml · nonDerivative · entry 3

KOUNINIS EFSTATHIOS A · CIK 0001353196 · SVP, Chief Accounting Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,983

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.

Read SEC document
June 04, 2026 Filed Jun 8, 2026 20:08 UTC PEGASYSTEMS INC PEGA · Entity 309 Exercise / conversionRestricted Stock Units · Derivative 324 $0.00 Strike: $0.00 $0.00
Disclosure

SEC source: 0001353196-26-000016 · wk-form4_1780949334.xml · derivative · entry 5

KOUNINIS EFSTATHIOS A · CIK 0001353196 · SVP, Chief Accounting Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,554

Underlying: Common stock · 324 shares

Expires 2029-03-04

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

F2 · derivative.exercise_date: 25% of the restricted stock units vested on the Date Exercisable in Table II, and the remaining 75% vest in equal quarterly installments over the following three years.

Read SEC document
June 04, 2026 Filed Jun 8, 2026 20:08 UTC PEGASYSTEMS INC PEGA · Entity 309 Tax withholdingCommon stock 79 $35.11 $2,773.69
Disclosure

SEC source: 0001353196-26-000016 · wk-form4_1780949334.xml · nonDerivative · entry 2

KOUNINIS EFSTATHIOS A · CIK 0001353196 · SVP, Chief Accounting Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,543

Read SEC document
June 04, 2026 Filed Jun 8, 2026 20:08 UTC PEGASYSTEMS INC PEGA · Entity 309 Exercise / conversionCommon stock 324 $0.00 $0.00
Disclosure

SEC source: 0001353196-26-000016 · wk-form4_1780949334.xml · nonDerivative · entry 1

KOUNINIS EFSTATHIOS A · CIK 0001353196 · SVP, Chief Accounting Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,622

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.

Read SEC document
June 01, 2026 Filed Jun 2, 2026 20:43 UTC PEGASYSTEMS INC PEGA · Entity 309 Exercise / conversionRestricted Stock Units · Derivative 204 $0.00 Strike: $0.00 $0.00
Disclosure

SEC source: 0001353196-26-000014 · wk-form4_1780433000.xml · derivative · entry 5

KOUNINIS EFSTATHIOS A · CIK 0001353196 · SVP, Chief Accounting Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 618

Underlying: Common stock · 204 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.

F1 · shares: Each restricted stock unit represents the right to receive, following vesting, one share of common stock.

F2 · derivative.exercise_date: 20% of the restricted stock units vested on the Date Exercisable in Table II, and the remaining 80% vest in equal quarterly installments over the following four years.

Read SEC document
June 01, 2026 Filed Jun 2, 2026 20:43 UTC PEGASYSTEMS INC PEGA · Entity 309 Tax withholdingCommon stock 50 $35.73 $1,786.50
Disclosure

SEC source: 0001353196-26-000014 · wk-form4_1780433000.xml · nonDerivative · entry 4

KOUNINIS EFSTATHIOS A · CIK 0001353196 · SVP, Chief Accounting Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,298

Read SEC document
June 01, 2026 Filed Jun 2, 2026 20:43 UTC PEGASYSTEMS INC PEGA · Entity 309 Exercise / conversionCommon stock 204 $0.00 $0.00
Disclosure

SEC source: 0001353196-26-000014 · wk-form4_1780433000.xml · nonDerivative · entry 3

KOUNINIS EFSTATHIOS A · CIK 0001353196 · SVP, Chief Accounting Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,348

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.

Read SEC document
June 01, 2026 Filed Jun 2, 2026 20:43 UTC PEGASYSTEMS INC PEGA · Entity 309 SaleCommon stock 750 $36.99 $27,742.50
Disclosure

SEC source: 0001353196-26-000014 · wk-form4_1780433000.xml · nonDerivative · entry 2

KOUNINIS EFSTATHIOS A · CIK 0001353196 · SVP, Chief Accounting Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,144

Read SEC document
May 29, 2026 Filed Jun 2, 2026 20:43 UTC PEGASYSTEMS INC PEGA · Entity 309 SaleCommon stock 750 $34.75 $26,062.50
Disclosure

SEC source: 0001353196-26-000014 · wk-form4_1780433000.xml · nonDerivative · entry 1

KOUNINIS EFSTATHIOS A · CIK 0001353196 · SVP, Chief Accounting Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,894

Read SEC document
March 17, 2026 Filed Mar 19, 2026 20:05 UTC PEGASYSTEMS INC PEGA · Entity 309 SaleCommon stock 1,000 $42.88 $42,880.00
Disclosure

SEC source: 0001353196-26-000012 · wk-form4_1773950736.xml · nonDerivative · entry 1

KOUNINIS EFSTATHIOS A · CIK 0001353196 · SVP, Chief Accounting Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,365

Read SEC document
March 07, 2026 Filed Mar 10, 2026 20:25 UTC PEGASYSTEMS INC PEGA · Entity 309 Exercise / conversionRestricted Stock Units · Derivative 332 $0.00 Strike: $0.00 $0.00
Disclosure

SEC source: 0001353196-26-000010 · wk-form4_1773174337.xml · derivative · entry 3

KOUNINIS EFSTATHIOS A · CIK 0001353196 · SVP, Chief Accounting Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,330

Underlying: Common stock · 332 shares

Expires 2027-03-07

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

F2 · derivative.exercise_date: This restricted stock unit award vested 25% on the Date Exercisable in Table II, with the remaining 75% vesting in equal quarterly amounts over the remaining 3 years.

Read SEC document
March 07, 2026 Filed Mar 10, 2026 20:25 UTC PEGASYSTEMS INC PEGA · Entity 309 Tax withholdingCommon stock 81 $47.24 $3,826.44
Disclosure

SEC source: 0001353196-26-000010 · wk-form4_1773174337.xml · nonDerivative · entry 2

KOUNINIS EFSTATHIOS A · CIK 0001353196 · SVP, Chief Accounting Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 4,365

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March 07, 2026 Filed Mar 10, 2026 20:25 UTC PEGASYSTEMS INC PEGA · Entity 309 Exercise / conversionCommon stock 332 $0.00 $0.00
Disclosure

SEC source: 0001353196-26-000010 · wk-form4_1773174337.xml · nonDerivative · entry 1

KOUNINIS EFSTATHIOS A · CIK 0001353196 · SVP, Chief Accounting Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 4,446

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

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March 05, 2026 Filed Mar 9, 2026 20:24 UTC PEGASYSTEMS INC PEGA · Entity 309 Exercise / conversionRestricted Stock Units · Derivative 440 $0.00 Strike: $0.00 $0.00
Disclosure

SEC source: 0001353196-26-000008 · wk-form4_1773087844.xml · derivative · entry 3

KOUNINIS EFSTATHIOS A · CIK 0001353196 · SVP, Chief Accounting Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,522

Underlying: Common stock · 440 shares

Expires 2028-03-05

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: Each restricted stock unit represents the right to receive, following vesting, one share of common stock.

F2 · derivative.exercise_date: 25% of the restricted stock units vest on the Date Exercisable in Table II, and the remaining 75% vest in equal quarterly installments over the following three years.

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March 05, 2026 Filed Mar 9, 2026 20:24 UTC PEGASYSTEMS INC PEGA · Entity 309 Tax withholdingCommon stock 108 $47.05 $5,081.40
Disclosure

SEC source: 0001353196-26-000008 · wk-form4_1773087844.xml · nonDerivative · entry 2

KOUNINIS EFSTATHIOS A · CIK 0001353196 · SVP, Chief Accounting Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 4,114

Read SEC document
March 05, 2026 Filed Mar 9, 2026 20:24 UTC PEGASYSTEMS INC PEGA · Entity 309 Exercise / conversionCommon stock 440 $0.00 $0.00
Disclosure

SEC source: 0001353196-26-000008 · wk-form4_1773087844.xml · nonDerivative · entry 1

KOUNINIS EFSTATHIOS A · CIK 0001353196 · SVP, Chief Accounting Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 4,222

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: Each restricted stock unit represents the right to receive, following vesting, one share of common stock.

Read SEC document
March 04, 2026 Filed Mar 5, 2026 21:26 UTC PEGASYSTEMS INC PEGA · Entity 309 Exercise / conversionRestricted Stock Units · Derivative 2,208 $0.00 Strike: $0.00 $0.00
Disclosure

SEC source: 0001353196-26-000006 · wk-form4_1772745985.xml · derivative · entry 9

KOUNINIS EFSTATHIOS A · CIK 0001353196 · SVP, Chief Accounting Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common stock · 2,208 shares

Expires 2026-03-04

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: Each restricted stock unit represents the right to receive, following vesting, one share of common stock.

F5 · derivative.exercise_date: This restricted stock unit award vested 100% based on the achievement of performance conditions under the Company's CICP related to the Company's financial results for the year ended December 31, 2025.

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March 04, 2026 Filed Mar 5, 2026 21:26 UTC PEGASYSTEMS INC PEGA · Entity 309 Exercise / conversionRestricted Stock Units · Derivative 1,292 $0.00 Strike: $0.00 $0.00
Disclosure

SEC source: 0001353196-26-000006 · wk-form4_1772745985.xml · derivative · entry 8

KOUNINIS EFSTATHIOS A · CIK 0001353196 · SVP, Chief Accounting Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,878

Underlying: Common stock · 1,292 shares

Expires 2029-03-04

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: Each restricted stock unit represents the right to receive, following vesting, one share of common stock.

F3 · derivative.exercise_date: 25% of the restricted stock units vest on the Date Exercisable in Table II, and the remaining 75% vest in equal quarterly installments over the following three years.

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March 04, 2026 Filed Mar 5, 2026 21:26 UTC PEGASYSTEMS INC PEGA · Entity 309 Tax withholdingCommon stock 655 $45.01 $29,481.55
Disclosure

SEC source: 0001353196-26-000006 · wk-form4_1772745985.xml · nonDerivative · entry 4

KOUNINIS EFSTATHIOS A · CIK 0001353196 · SVP, Chief Accounting Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,782

Read SEC document
March 04, 2026 Filed Mar 5, 2026 21:26 UTC PEGASYSTEMS INC PEGA · Entity 309 Exercise / conversionCommon stock 2,208 $0.00 $0.00
Disclosure

SEC source: 0001353196-26-000006 · wk-form4_1772745985.xml · nonDerivative · entry 3

KOUNINIS EFSTATHIOS A · CIK 0001353196 · SVP, Chief Accounting Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 4,437

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: Each restricted stock unit represents the right to receive, following vesting, one share of common stock.

Read SEC document

Value uses the disclosed total when available, otherwise shares × reported transaction price. It is not an estimate of exercise cash cost or investment performance.