Insider sale at Pegasystems (NASDAQ: PEGA) under 10b5-1 plan

Rhea-AI Filing Summary

Pegasystems Inc. executive Kenneth Stillwell, the company’s COO and CFO, reported an open-market sale of 1,000 shares of common stock at $43.17 per share. The sale was made pursuant to a pre-arranged Rule 10b5-1 trading plan adopted by Mr. Stillwell. After the transaction, he directly holds 108,532 common shares. A separate entry shows 1,908 shares held indirectly for his children, which reflects ongoing indirect ownership rather than a new trade.

Insider Trade Summary 10b5-1

Net Seller: 1,000 shares ($43,170)

Net Sell 2 txns

Insider STILLWELL KENNETH

Role COO, CFO

Sold 1,000 shs ($43K)

Type	Security	Shares	Price	Value
Sale	Common stock	1,000	$43.17	$43K
holding	Common stock	--	--	--

Holdings After Transaction: Common stock — 108,532 shares (Direct); Common stock — 1,908 shares (Indirect, Reporting Person's children)

Footnotes (1)

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Key Figures

Shares sold: 1,000 shares Sale price: $43.17 per share Direct holdings after sale: 108,532 shares +2 more

5 metrics

Shares sold 1,000 shares Open-market sale of Pegasystems common stock

Sale price $43.17 per share Price for 1,000 Pegasystems shares sold

Direct holdings after sale 108,532 shares Common stock held directly by Kenneth Stillwell

Indirect family holdings 1,908 shares Common stock held for reporting person’s children

Trading plan adoption date August 12, 2025 Date Rule 10b5-1 plan was adopted

Key Terms

Rule 10b5-1, pre-arranged trading plan, open-market sale, Common stock

4 terms

Rule 10b5-1 regulatory

"under Rule 10b5-1 of the Securities Exchange Act of 1934, as amended"

Rule 10b5-1 is a regulation that allows company insiders to buy or sell their shares at predetermined times, even if they have access to non-public information. It acts like setting a schedule in advance for transactions, helping prevent accusations of unfair trading. This rule provides a way for insiders to plan trades transparently, giving investors confidence that these transactions are not based on hidden information.

pre-arranged trading plan financial

"Sold pursuant to a pre-arranged trading plan adopted by Mr. Stillwell"

A pre-arranged trading plan is a set of instructions created in advance that specifies how and when an investor will buy or sell securities. It helps ensure that trades are made in a planned, transparent way, reducing the risk of making impulsive decisions or trading based on inside information. This plan provides a clear structure, giving investors confidence that their trades follow their original intentions, even if market conditions change.

open-market sale financial

"transaction_action": "open-market sale""

An open-market sale is when a shareholder sells existing shares directly on a public exchange to any willing buyer, rather than through a private deal. Think of it like putting goods on a busy market stall where price is set by supply and demand; for investors it matters because such sales increase available supply, can put short-term downward pressure on the stock price, and signal changes in liquidity or investor confidence.

Common stock financial

""security_title": "Common stock""

Common stock represents ownership shares in a company, giving investors a stake in its success and a say in important decisions through voting rights. It is the most common type of stock traded on markets and can provide income through dividends, as well as potential for value growth. For investors, holding common stock means sharing in the company’s profits and risks.

Form 4 Insider Transactions: What Each Field Means →

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 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)
04/01/2026

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	04/01/2026		S		1,000(1)	D	$43.17	108,532	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

Explanation of Responses:

1. Sold pursuant to a pre-arranged trading plan adopted by Mr. Stillwell August 12, 2025 under Rule 10b5-1 of the Securities Exchange Act of 1934, as amended.

Remarks:

	/s/ Ewelina Kemp, Attorney-in-Fact for Kenneth Stillwell	04/03/2026
	** 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)

FAQ

What insider transaction did Pegasystems (PEGA) report for Kenneth Stillwell?

Pegasystems reported that COO and CFO Kenneth Stillwell sold 1,000 shares of common stock. The shares were sold in an open-market transaction at $43.17 per share, under a pre-arranged Rule 10b5-1 trading plan adopted earlier.

How many Pegasystems (PEGA) shares does Kenneth Stillwell hold after this sale?

After the reported sale, Kenneth Stillwell directly holds 108,532 Pegasystems common shares. The filing also shows 1,908 additional shares held indirectly for his children, reflecting family-related indirect ownership reported in the Form 4.

Was the Pegasystems (PEGA) insider sale made under a Rule 10b5-1 plan?

Yes. The filing notes the 1,000-share sale was executed pursuant to a pre-arranged trading plan adopted by Kenneth Stillwell on August 12, 2025 under Rule 10b5-1 of the Securities Exchange Act of 1934, as amended.

What price did Kenneth Stillwell receive per Pegasystems (PEGA) share?

Kenneth Stillwell received $43.17 per share for the 1,000 Pegasystems common shares sold. This reported price reflects the transaction value for the open-market or private sale disclosed in the Form 4 insider trading report.

Does the Form 4 show any Pegasystems (PEGA) derivative transactions for Kenneth Stillwell?

No derivative transactions are shown in this Form 4. The derivative summary is empty, indicating no option exercises or other derivative-related trades were reported alongside the 1,000-share common stock sale.