Efstathios A. Kouninis - 04 Sep 2026 Form 4 Insider Report for PEGASYSTEMS INC (PEGA)

Reporting relationship: SVP, Chief Accounting Officer
Issuer ticker: PEGA
Reported as of: 04 Sep 2026
Net transaction value: $0
SEC form: 4
Accepted by SEC: 09 Sep 2026, 17:36:24 UTC
Prior SEC filing: 03 Sep 2026
Next SEC filing: 17 Sep 2026
Source filing: View source filing
Reporting owner signature: /s/ Ewelina Kemp, Attorney-in-Fact for Efstathios A. Kouninis

Key filing fact

Efstathios A. Kouninis filed Form 4 for PEGASYSTEMS INC (PEGA) on 09 Sep 2026.

Key facts

This page summarizes Efstathios A. Kouninis's Form 4 filing for PEGASYSTEMS INC (PEGA).
9 reported transactions and 3 derivative rows are listed below.
Accepted by SEC: 09 Sep 2026, 17:36.

Change

Previous filing in this sequence was filed on 03 Sep 2026.
Current net transaction value: $0.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0001353196 Primary reporting owner

KOUNINIS EFSTATHIOS A

Relationship: SVP, Chief Accounting Officer
Address: C/O PEGASYSTEMS INC., 225 WYMAN STREET, STE 300, WALTHAM
Signature: /s/ Ewelina Kemp, Attorney-in-Fact for Efstathios A. Kouninis
Signature date: 09 Sep 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

PEGA transaction

Common stock

Options Exercise

Transaction value
Shares: +322
Change %: +28%
Price: $0.000000^*
Shares after: 1,486
Date: 04 Sep 2026
Ownership: Direct

PEGA transaction

Common stock

Tax liability

Transaction value
Shares: -79
Change %: -5.3%
Price: $37.72^*
Shares after: 1,407
Date: 04 Sep 2026
Ownership: Direct

PEGA transaction

Common stock

Options Exercise

Transaction value
Shares: +440
Change %: +31%
Price: $0.000000^*
Shares after: 1,847
Date: 05 Sep 2026
Ownership: Direct

PEGA transaction

Common stock

Tax liability

Transaction value
Shares: -108
Change %: -5.8%
Price: $37.36^*
Shares after: 1,739
Date: 05 Sep 2026
Ownership: Direct

PEGA transaction

Common stock

Options Exercise

Transaction value
Shares: +334
Change %: +19%
Price: $0.000000^*
Shares after: 2,073
Date: 07 Sep 2026
Ownership: Direct

PEGA transaction

Common stock

Tax liability

Transaction value
Shares: -82
Change %: -4%
Price: $37.36^*
Shares after: 1,991
Date: 07 Sep 2026
Ownership: Direct

Reported derivative securities

Options, warrants, convertible securities, or similar derivative positions disclosed in the filing.

PEGA transaction Derivative

Restricted Stock Units

Options Exercise

Transaction value
Shares: -322
Change %: -9.1%
Price: $0.000000^*
Shares after: 3,232
Date: 04 Sep 2026
Ownership: Direct
Underlying class: Common stock
Underlying amount: 322
Exercise price: $0.000000
Footnotes: F1, F2

PEGA transaction Derivative

Restricted Stock Units

Options Exercise

Transaction value
Shares: -440
Change %: -14%
Price: $0.000000^*
Shares after: 2,642
Date: 05 Sep 2026
Ownership: Direct
Underlying class: Common stock
Underlying amount: 440
Exercise price: $0.000000
Footnotes: F1, F2

PEGA transaction Derivative

Restricted Stock Units

Options Exercise

Transaction value
Shares: -334
Change %: -33%
Price: $0.000000^*
Shares after: 664
Date: 07 Sep 2026
Ownership: Direct
Underlying class: Common stock
Underlying amount: 334
Exercise price: $0.000000
Footnotes: F1, F2

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 2 footnotes

Footnote F1

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

Footnote F2

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.