[Form 4] Pegasystems Inc Insider Trading Activity

Insider Trade Summary

Exercise and sale activity reported; no spread calculated

Exercise and Sale 6 txns

Insider STILLWELL KENNETH

Role COO, CFO

Sold 15,147 shs ($879K)

Approx. gross sale proceeds $879K

Approx. exercise cost $439K

Type	Security	Shares	Price	Value
Exercise	Stock Options	25,920	$0.00	$0.00
Exercise	Common stock	25,920	$16.95	$439K
Exercise Price or Tax Liability	Common stock	14,773	$58.27	$861K
Sale	Common stock	11,147	$58.19	$649K
Sale	Common stock	3,900	$57.70	$225K
Sale	Common stock	100	$58.24	$6K

Holdings After Transaction: Stock Options — 129,600 contracts (Direct); Common stock — 119,868 shares (Direct)

Footnotes (5)

1. F1. Sold pursuant to a pre-arranged trading plan adopted by Mr. Stillwell August 29, 2024 under Rule 10b5-1 of the Securities Exchange Act of 1934, as amended.
2. F2. Represents the weighted average of sale prices, ranging from $57.20 to $58.14. The individual has provided the Company, and undertakes to provide to the staff of the Security and Exchange Commission or any security holder of the Company, upon request, full information regarding the number of shares sold at each separate price.
3. F3. Represents the weighted average of sale prices, ranging from $58.17 to $58.27. The individual has provided the Company, and undertakes to provide to the staff of the Security and Exchange Commission or any security holder of the Company, upon request, full information regarding the number of shares sold at each separate price.
4. F4. 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.
5. F5. Option vests in 16 equal quarterly installments over four years beginning on the Date Exercisable in Table II.

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Accepted by SEC EDGAR 08/05/2025 - 05:09 PM Learn about SEC filing dates

SEC Form 4

FORM 4

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
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

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

X

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^*

STILLWELL KENNETH

(Last) (First) (Middle)

C/O PEGASYSTEMS INC.

225 WYMAN STREET, STE 300

(Street)

WALTHAM MA 02451

(City) (State) (Zip)

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)
	COO, CFO

3. Date of Earliest Transaction (Month/Day/Year)
08/01/2025

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	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	08/01/2025		S		3,900(1)	D	$57.7(2)	119,968	D
Common stock	08/01/2025		S		100(1)	D	$58.24	119,868	D
Common stock	08/04/2025		M		25,920	A	$16.95	145,788	D
Common stock	08/04/2025		F		14,773	D	$58.27	131,015	D
Common stock	08/04/2025		S		11,147	D	$58.19(3)	119,868	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 (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	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 (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (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: 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	$16.95	08/04/2025		M			25,920(4)	02/02/2023(5)	11/02/2032	Common stock	25,920	$0	129,600	D

Explanation of Responses:

1. Sold pursuant to a pre-arranged trading plan adopted by Mr. Stillwell August 29, 2024 under Rule 10b5-1 of the Securities Exchange Act of 1934, as amended.

2. Represents the weighted average of sale prices, ranging from $57.20 to $58.14. The individual has provided the Company, and undertakes to provide to the staff of the Security and Exchange Commission or any security holder of the Company, upon request, full information regarding the number of shares sold at each separate price.

3. Represents the weighted average of sale prices, ranging from $58.17 to $58.27. The individual has provided the Company, and undertakes to provide to the staff of the Security and Exchange Commission or any security holder of the Company, upon request, full information regarding the number of shares sold at each separate price.

4. 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.

5. Option vests in 16 equal quarterly installments over four years beginning on the Date Exercisable in Table II.

Remarks:

	/s/ Ewelina Kemp, Attorney-in-Fact for Kenneth Stillwell	08/05/2025
	** Signature of Reporting Person	Date
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.
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