Pegasystems COO sells 4,000 shares under 10b5-1

Pegasystems Inc. executive Kenneth Stillwell, the company’s COO and CFO, sold 4,000 shares of common stock on January 2, 2026.

Rhea-AI Filing Summary

Pegasystems Inc. executive Kenneth Stillwell, the company’s COO and CFO, sold 4,000 shares of common stock on January 2, 2026. The shares were sold at a weighted average price of $59.99, with individual sale prices ranging from $59.98 to $60.00. After this transaction, he beneficially owned 122,880 Pegasystems shares directly.

The sale was executed under a pre-arranged Rule 10b5-1 trading plan that Mr. Stillwell adopted on August 29, 2024. Such plans are designed to allow insiders to sell shares according to a preset schedule or conditions, helping separate trading decisions from day-to-day, non-public company information.

Insider Trade Summary

Net Seller: 4,000 shares

Net Sell 1 txn

Insider STILLWELL KENNETH

Role COO, CFO

Sold 4,000 shs ($240K)

Type	Security	Shares	Price	Value
Sale	Common stock	4,000	$59.99	$240K

Holdings After Transaction: Common stock — 122,880 shares (Direct)

Footnotes (2)

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 $59.98 to $60.00. 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.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What insider transaction did PEGA report in this Form 4?

The filing reports that COO and CFO Kenneth Stillwell sold 4,000 shares of Pegasystems common stock on January 2, 2026.

At what price did PEGA’s COO sell the 4,000 shares?

The 4,000 shares were sold at a weighted average price of $59.99 per share, with individual prices ranging from $59.98 to $60.00.

How many PEGA shares does Kenneth Stillwell own after this sale?

Following the reported sale, Kenneth Stillwell beneficially owns 122,880 Pegasystems common shares directly.

Was the PEGA insider sale made under a Rule 10b5-1 trading plan?

Yes. The filing states the sale was made pursuant to a pre-arranged trading plan adopted by Mr. Stillwell on August 29, 2024 under Rule 10b5-1.

Who is the insider involved in this PEGA Form 4 filing?

The reporting person is Kenneth Stillwell, who serves as Chief Operating Officer and Chief Financial Officer of Pegasystems Inc.

Is the ownership reported in the PEGA Form 4 direct or indirect?

The Form 4 indicates that the 4,000 shares sold and the 122,880 shares owned after the sale are held directly by Mr. Stillwell.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Accepted by SEC EDGAR 01/06/2026 - 04:05 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)
01/02/2026

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	01/02/2026		S		4,000(1)	D	$59.99(2)	122,880	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

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 $59.98 to $60.00. 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.

Remarks:

	/s/ Ewelina Kemp, Attorney-in-Fact for Kenneth Stillwell	01/06/2026
	** 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.
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.