KOUNINIS EFSTATHIOS A 4

4 · PEGASYSTEMS INC · Filed Mar 5, 2026

Form 4

Period: 2026-03-03

SVP, Chief Accounting Officer

Transactions

Exercise/Conversion
Common stock
[F1]
2026-03-04+1,292→ 2,542 total
Tax Payment
Common stock
2026-03-04$45.01/sh−313$14,088→ 2,229 total
Exercise/Conversion
Common stock
[F1]
2026-03-04+2,208→ 4,437 total
Tax Payment
Common stock
2026-03-04$45.01/sh−655$29,482→ 3,782 total
Award
Stock Option
[F2]
2026-03-03+11,390→ 11,390 total
Exercise: $45.01From: 2027-03-03Exp: 2036-03-03→ Common stock (11,390 underlying)
Award
Restricted Stock Units
[F1][F3]
2026-03-03+4,469→ 4,469 total
Exercise: $0.00From: 2027-03-03Exp: 2030-03-03→ Common stock (4,469 underlying)
Award
Restricted Stock Units
[F1][F4]
2026-03-03+1,961→ 1,961 total
Exercise: $0.00From: 2027-03-03Exp: 2027-03-03→ Common stock (1,961 underlying)
Exercise/Conversion
Restricted Stock Units
[F1][F3]
2026-03-04−1,292→ 3,878 total
Exercise: $0.00From: 2026-03-04Exp: 2029-03-04→ Common stock (1,292 underlying)
Exercise/Conversion
Restricted Stock Units
[F1][F5]
2026-03-04−2,208→ 0 total
Exercise: $0.00From: 2026-03-04Exp: 2026-03-04→ Common stock (2,208 underlying)

Footnotes (5)

[F1]Each restricted stock unit represents the right to receive, following vesting, one share of common stock.
[F2]This stock option vests as to 25% of the shares subject thereto on the Date Exercisable in Table II, with the remaining 75% vesting in equal quarterly amounts over the following three years.
[F3]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.
[F4]This award represents the election by the individual, as part of the Company's Corporate Incentive Compensation Plan (CICP), to receive half of their annual bonus in restricted share units. This restricted stock unit award vests 100% on the Date Exercisable in Table II, subject to attainment of the CICP performance threshold funding for the year ending December 31, 2026.
[F5]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.

Signature

/s/ Ewelina Kemp, Attorney-in-Fact for Efstathios A. Kouninis|2026-03-05

Documents

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