Sec Form 4 Filing - Akgonul Rifat Kerim @ PEGASYSTEMS INC - 2024-02-14

FORM 4 Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL OMB Number: 3235-0287 Expires: November 30, 2011 Estimated average burden hours per response... 0.5

1. Name and Address of Reporting Person Akgonul Rifat Kerim 2. Issuer Name and Ticker or Trading Symbol PEGASYSTEMS INC [ PEGA] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director _____ 10% Owner X __ Officer (give title below) _____ Other (specify below) Chief Product Officer (Last) (First) (Middle) C/O PEGASYSTEMS INC., ONE MAIN STREET 3. Date of Earliest Transaction (MM/DD/YY) 02/14/2024 (Street) CAMBRIDGE, MA02142 4. If Amendment, Date Original Filed (MM/DD/YY) 6. Individual or Joint/Group Filing (Check Applicable Line) __ X __ Form filed by One Reporting Person _____ Form filed by More than One Reporting Person (City) (State) (Zip)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned 1.Title of Security (Instr. 3) 2. Transaction Date (MM/DD/YY) 2A. Deemed Execution Date, if any (MM/DD/YY) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4) Code V Amount (A) or (D) Price Common stock 53,092 ( 1 ) D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned ( e.g. , puts, calls, warrants, options, convertible securities) 1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (MM/DD/YY) 3A. Deemed Execution Date, if any (MM/DD/YY) 4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4, and 5) 6. Date Exercisable and Expiration Date (MM/DD/YY) 7. Title and Amount of Underlying Securities (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4) Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares Stock Options $ 47.27 02/14/2024 A 4,557 03/07/2024 03/07/2033 Common stock 4,557 $ 0 4,557 ( 2 ) D Stock Options $ 47.27 02/14/2024 A 7,500 03/07/2024 03/07/2033 Common stock 7,500 $ 0 7,500 ( 3 ) D

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other Akgonul Rifat Kerim C/O PEGASYSTEMS INC. ONE MAIN STREET CAMBRIDGE, MA02142 Chief Product Officer Signatures /s/ Ewelina Kemp, Attorney-in-Fact for Rifat Kerim Akgonul 02/16/2024 Signature of Reporting Person Date

Explanation of Responses:

( 1 )Does not include shares of common stock subject to unvested restricted stock units and/or options awards. Includes shares acquired on December 31, 2023 pursuant to the company stock purchase plan. ( 2 )On March 7, 2023, the reporting person was granted an option to purchase 18,227 shares of common stock. The option vests in two installments, with up to 25% to vest on the first anniversary of the date of grant based on the Pegasystems' satisfaction of certain performance criteria for the fiscal year ended December 31, 2023, and with up to 75% to vest on the second anniversary of the date of grant based on Pegasystems' satisfaction of certain performance criteria for the fiscal year ended December 31, 2024. The performance criteria for the fiscal year ended December 31, 2023 were met in full, resulting in vesting of the option as to 4,557 shares. ( 3 )On March 7, 2023, the reporting person was granted an option to purchase 30,000 shares of common stock. The option vests in two installments, with up to 25% to vest on the first anniversary of the date of grant based on the Pegasystems' satisfaction of certain performance criteria for the fiscal year ended December 31, 2023, and with up to 75% to vest on the second anniversary of the date of grant based on Pegasystems' satisfaction of certain performance criteria for the fiscal year ended December 31, 2024. The performance criteria for the fiscal year ended December 31, 2023 were met in full, resulting in vesting of the option as to 7,500 shares.

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.

* If the form is filed by more than one reporting person, see Instruction 4(b)(v).

** Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).

Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.