# EDGAR Filing Document

**Accession Number:** 0001013857
**File Stem:** 0001680115-25-000004
**Filing Date:** 2025-7
**Character Count:** 9872
**Document Hash:** 95be288b42b13d48f08451e705ad1da4
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001680115-25-000004.hdr.sgml**: 20250729

**ACCESSION NUMBER**: 0001680115-25-000004

**CONFORMED SUBMISSION TYPE**: 4

**PUBLIC DOCUMENT COUNT**: 4

**CONFORMED PERIOD OF REPORT**: 20250728

**FILED AS OF DATE**: 20250729

**DATE AS OF CHANGE**: 20250729

**REPORTING-OWNER**: 

**OWNER DATA:**
- **COMPANY CONFORMED NAME:** STILLWELL KENNETH
- **CENTRAL INDEX KEY:** 0001680115

**ORGANIZATION NAME:**

**FILING VALUES:**
- **FORM TYPE:** 4
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-11859
- **FILM NUMBER:** 251162796

**MAIL ADDRESS:**
- **STREET 1:** 225 WYMAN STREET
- **STREET 2:** STE 300
- **CITY:** WALTHAM
- **STATE:** MA
- **ZIP:** 02451
**ISSUER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** PEGASYSTEMS INC
- **CENTRAL INDEX KEY:** 0001013857
- **STANDARD INDUSTRIAL CLASSIFICATION:** SERVICES-COMPUTER PROCESSING & DATA PREPARATION [7374]
- **ORGANIZATION NAME:** 06 Technology
- **EIN:** 042787865
- **STATE OF INCORPORATION:** MA
- **FISCAL YEAR END:** 1231

**BUSINESS ADDRESS:**
- **STREET 1:** 225 WYMAN STREET
- **STREET 2:** STE 300
- **CITY:** WALTHAM
- **STATE:** MA
- **ZIP:** 02451-1293
- **BUSINESS PHONE:** 6173749600

**MAIL ADDRESS:**
- **STREET 1:** 225 WYMAN STREET
- **STREET 2:** STE 300
- **CITY:** WALTHAM
- **STATE:** MA
- **ZIP:** 02451-1293

## Ex-24

![](section16poa-kennethstil001.jpg)

&nbsp;&nbsp;&nbsp;&nbsp;POWER OF ATTORNEY For Executing Forms 3, 4, and 5 The undersigned hereby constitutes and appoints each of Benjamin Ostapuk, Kathryn Leach, Ewelina Kemp, and Jennelle Senechal, signing singly, as the undersigned's true and lawful attorney-in-fact to: (1) execute for and on behalf of the undersigned, in the undersigned's capacity as an officer and/or director of Pegasystems Inc. (the "Company"), Forms 3, 4, and 5 (including any amendments thereto) in accordance with Section 16(a) of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), and the rules thereunder; and (2) do and perform any and all acts for and on behalf of the undersigned that may be necessary or desirable to complete the execution of any such Forms 3, 4, and 5 and the timely filing of such forms with the United States Securities and Exchange Commission (the "SEC") and any other authority; and (3) serve as an account administrator for the undersigned's EDGAR account with the SEC and do and perform any and all acts that may be necessary or desirable to manage the undersigned's EDGAR account, including but not limited to adding and removing individuals from the undersigned's EDGAR account, performing annual confirmations, delegating authority to file to other Central Index Key (CIK) codes, generating or creating custom CIK confirmation codes (CCCs), and creating user groups; and (4) take any other action of any type whatsoever in connection with the foregoing that, in the opinion of such attorney-in-fact, may be of benefit to, in the best interest of, or legally required by, the undersigned, it being understood that the documents executed by such attorney-in-fact on behalf of the undersigned pursuant to this Power of Attorney shall be in such form and shall contain such terms and conditions as such attorney-in-fact may approve in his or her discretion. The undersigned hereby grants to each such attorney-in-fact full power and authority to do and perform all and every act and thing whatsoever requisite, necessary and proper to be done in the exercise of any of the rights and powers herein granted, as fully to all intents and purposes as the undersigned might or could do if personally present, with full power of substitution or revocation, hereby ratifying and confirming all that such attorney-in-fact, or his or her substitute or substitutes, shall lawfully do or cause to be done by virtue of this Power of Attorney and the rights and powers herein granted. The undersigned acknowledges that the foregoing attorneys-in-fact, in serving in such capacity at the request of the undersigned, are not assuming, nor is the Company assuming, any of the undersigned's liabilities or responsibilities to comply with Section 16 of the Exchange Act. This Power of Attorney replaces in their entirety any and all prior powers of attorney executed by the undersigned with respect to the subject matters set forth herein, including any powers of attorney previously filed with the SEC, which prior powers of attorney are hereby revoked in their entirety. This Power of Attorney shall remain in full force and effect until the undersigned is no longer required to file Forms 3, 4, and 5 with respect to the undersigned's holdings of and transactions in securities issued by the Company, unless earlier revoked by the undersigned in a signed writing delivered to the foregoing attorneys-in-fact. Docusign Envelope ID: 630380B9-F38F-4EFA-8C02-01491504C556

------

![](section16poa-kennethstil002.jpg)

IN WITNESS WHEREOF, the undersigned has caused this Power of Attorney to be executed this th day of July 2025. Signed: KENNETH STILLWELL Docusign Envelope ID: 630380B9-F38F-4EFA-8C02-01491504C556 24

------

### UNITED STATES SECURITIES AND EXCHANGE COMMISSION
**Washington, D.C. 20549**

## FORM 4

### STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

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

[ ] Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

---

| | | |
|:---|:---|:---|
| **1. Name and Address of Reporting Person**<sup>*</sup><br>STILLWELL KENNETH<br><sub>(Last) (First) (Middle)</sub><br>C/O PEGASYSTEMS INC.<br>225 WYMAN STREET, STE 300<br><sub>(Street)</sub><br>WALTHAM, MA 02451<br><sub>(City) (State) (Zip)</sub> | **3. Date of Earliest Transaction (Month/Day/Year)**<br>2025-07-28 | **5. Relationship of Reporting Person(s) to Issuer**<br>(Check all applicable)<br>[ ] Director [ ] 10% Owner<br>[X] Officer (give title below) [ ] Other (specify below)<br>_COO, CFO_ |
| **2. Issuer Name and Ticker or Trading Symbol**<br>PEGASYSTEMS INC [ PEGA ] | **4. If Amendment, Date of Original Filed (Month/Day/Year)**<br>  | **6. Individual or Joint/Group Filing (Check Applicable Line)**<br>[X] Form filed by One Reporting Person<br>[ ] Form filed by More than One Reporting Person |

---

## Table I - Non-Derivative Securities

---

|  |  |  |  |  |  |  |  |  |  |  |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1. Title of Security | 2. Transaction Date | 2A. Deemed Execution Date | 3. Transaction Code (V) | 3. Transaction Code (V) | 4. Securities Acquired (A) or Disposed of (D) | 4. Securities Acquired (A) or Disposed of (D) | 4. Securities Acquired (A) or Disposed of (D) | 5. Amount of Securities Beneficially Owned | 6. Ownership Form | 7. Nature of Indirect Beneficial Ownership |
| 1. Title of Security | 2. Transaction Date | 2A. Deemed Execution Date | Code | V | Amount | (A) or (D) | Price | 5. Amount of Securities Beneficially Owned | 6. Ownership Form | 7. Nature of Indirect Beneficial Ownership |
| Common stock | 2025-07-28 |  | M |  | 220000 | A | $26.24 | 269350 | D |  |
| Common stock | 2025-07-28 |  | F |  | 145482 | D | $59.42 | 123868 | D |  |

---

## Table II - Derivative Securities

---

|  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1. Title of Derivative Security | 2. Conversion or Exercise Price | 3. Transaction Date | 3A. Deemed Execution Date | 4. Transaction Code (V) | 4. Transaction Code (V) | 5. Number of Derivative Securities Acquired (A) or Disposed of (D) | 5. Number of Derivative Securities Acquired (A) or Disposed of (D) | 6. Date Exercisable and Expiration Date | 6. Date Exercisable and Expiration Date | 7. Title and Amount of Underlying Securities | 7. Title and Amount of Underlying Securities | 8. Price of Derivative Security | 9. Number of Derivative Securities Beneficially Owned | 10. Ownership Form | 11. Nature of Indirect Beneficial Ownership |
| 1. Title of Derivative Security | 2. Conversion or Exercise Price | 3. Transaction Date | 3A. Deemed Execution Date | Code | V | (A) | (D) | Date Exercisable | Expiration Date | Title | Amount or Number of Shares | 8. Price of Derivative Security | 9. Number of Derivative Securities Beneficially Owned | 10. Ownership Form | 11. Nature of Indirect Beneficial Ownership |
| Stock Options | $26.24 | 2025-07-28 |  | M |  |  | 220000<sup>(1)</sup> | 2023-06-05<sup>(2)</sup> | 2032-06-05 | Common stock | 220000 | $0 | 0 | D |  |

---

### Footnotes:

(1) 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.

(2) Options vested 33% on the Date Exercisable in Table II, with the remaining 67% vesting in equal quarterly amounts over the next two years.

**Signature:** /s/ Ewelina Kemp, Attorney-in-Fact for Kenneth Stillwell  
**Date:** 2025-07-29

### Remarks:

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.**