Pegasystems CFO Kenneth Stillwell sells 16,256 shares

The reported activity includes an option exercise, shares delivered or withheld for payment, and a separate sale of common stock.

Available on EDGAR 11/06/2026 - 04:07 PM EST Accepted by SEC EDGAR 11/06/2026 - 04:06 PM EST Learn about SEC filing dates

Rhea-AI Filing Summary

Pegasystems Inc. COO, CFO Kenneth Stillwell exercised stock options for 25,920 shares of common stock on November 4, 2026, at an exercise price of $16.95 per share. On the same date, 17,664 shares were delivered or withheld for payment of exercise price or tax liability, and Stillwell sold 16,256 shares at a weighted average price of $35.5367 per share. Individual sale prices ranged from $35.53 to $35.56. No Rule 10b5-1 plan is reported. The filing also lists 1,908 shares held indirectly by his children.

Insider Trade Summary

Exercise and sale activity reported; no spread calculated

Exercise and Sale 4 txns

Insider STILLWELL KENNETH

Role COO, CFO

Sold 16,256 shs ($578K)

Approx. gross sale proceeds $578K

Approx. exercise cost $439K

Type	Security	Shares	Price	Value
Exercise	Stock Options F2	25,920	$0.00	$0.00
Exercise	Common stock	25,920	$16.95	$439K
Exercise Price or Tax Liability	Common stock	17,664	$35.70	$631K
Sale	Common stock F1	16,256	$35.5367	$578K
Holding	Common stock	--	--	--

Holdings After Transaction: Stock Options — 0 options (Direct); Common stock — 87,225 shares (Direct); Common stock — 1,908 shares (Indirect, Reporting Person's children)

Footnotes (2)

1. F1. Represents the weighted average of sale prices, ranging from $35.53 to $35.56. 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.
2. F2. This stock option vests in 16 equal quarterly installments over a four-year period beginning on the Date Exercisable in Table II.

Key Figures

Stock options exercised: 25,920 options Exercise price: $16.95 per share Common shares delivered or withheld: 17,664 shares +3 more

6 metrics

Stock options exercised 25,920 options November 4, 2026

Exercise price $16.95 per share Options exercised November 4, 2026

Common shares delivered or withheld 17,664 shares For payment of exercise price or tax liability on November 4, 2026

Common shares sold 16,256 shares November 4, 2026

Weighted average sale price $35.5367 per share Sale on November 4, 2026

Indirect shares held by reporting person's children 1,908 shares Holding listed on November 4, 2026

Key Terms

Stock Options, exercise price, weighted average

3 terms

Stock Options financial

"Stock Options"

Stock options are agreements that give a person the right to buy or sell a company's stock at a specific price within a certain time frame. They are often used as a reward or incentive, similar to a coupon that can be used later if the stock price rises, allowing the holder to make a profit.

exercise price financial

"at an exercise price of $16.9500"

The exercise price is the fixed amount at which you can buy or sell an asset, like a stock, when using an options contract. It matters because it helps determine whether exercising the option will be profitable or not, depending on the current market price. Think of it as the set price you agree on today to buy or sell later.

weighted average financial

"weighted average of sale prices"

A weighted average is a way of calculating an overall number when some items matter more than others by giving each item a different level of importance, or weight. Investors use weighted averages to combine figures like prices, returns or earnings so the result reflects the size or significance of each part — like grading a class where a final exam counts more than a quiz, producing a score that better represents true performance.

FAQ

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

How many PEGA shares did Kenneth Stillwell sell?

Kenneth Stillwell, Pegasystems Inc.'s COO, CFO, sold 16,256 shares on November 4, 2026, at a weighted average price of $35.5367 per share. Individual sale prices ranged from $35.53 to $35.56, and no Rule 10b5-1 plan is reported.

How many PEGA options did Kenneth Stillwell exercise?

Stillwell exercised options for 25,920 common shares on November 4, 2026, at an exercise price of $16.95 per share. On the same date, 17,664 common shares were delivered or withheld for payment of exercise price or tax liability.

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

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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).

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 MASSACHUSETTS 02451

(City) (State) (Zip)

UNITED STATES

(Country)

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

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
11/04/2026

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

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

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

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	11/04/2026		M		25,920	A	$16.95	121,145	D
Common stock	11/04/2026		F		17,664	D	$35.7	103,481	D
Common stock	11/04/2026		S		16,256	D	$35.5367(1)	87,225	D
Common stock								1,908	I	Reporting Person's children

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	11/04/2026		M			25,920	02/02/2023(2)	11/02/2032	Common stock	25,920	$0	0	D

Explanation of Responses:

1. Represents the weighted average of sale prices, ranging from $35.53 to $35.56. 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.

2. This stock option vests in 16 equal quarterly installments over a four-year period beginning on the Date Exercisable in Table II.

Remarks:

	/s/ Ewelina Kemp, Attorney-in-Fact for Kenneth Stillwell	11/06/2026
	** 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.
* Form 4: SEC 1474 (03-26)