Pegasystems (PEGA) accounting chief reports sale of 1,720 common shares

Rhea-AI Filing Summary

Pegasystems Inc senior vice president and chief accounting officer Efstathios A. Kouninis reported two open-market sales of common stock. On August 7, 2026 he sold 860 shares at $32.30 per share, and on August 10, 2026 he sold another 860 shares at $33.10 per share, for total reported sales of 1,720 shares. The transactions were reported as directly owned and not made under a Rule 10b5-1 trading plan.

Insider Trade Summary

Net Seller: 1,720 shares

Net Sell 2 txns

Insider KOUNINIS EFSTATHIOS A

Role SVP, Chief Accounting Officer

Sold 1,720 shs ($56K)

Type	Security	Shares	Price	Value
Sale	Common stock	860	$33.10	$28K
Sale	Common stock	860	$32.30	$28K

Holdings After Transaction: Common stock — 1,009 shares (Direct)

Key Figures

Shares sold 2026-08-07: 860 shares Price 2026-08-07: $32.30 per share Shares sold 2026-08-10: 860 shares +2 more

5 metrics

Shares sold 2026-08-07 860 shares Common stock sale on August 7, 2026 at $32.30 per share

Price 2026-08-07 $32.30 per share Open-market or private transaction in Pegasystems common stock

Shares sold 2026-08-10 860 shares Common stock sale on August 10, 2026 at $33.10 per share

Price 2026-08-10 $33.10 per share Open-market or private transaction in Pegasystems common stock

Total shares sold 1,720 shares Aggregate of two non-derivative common stock sales reported in this Form 4

Key Terms

open market or private transaction, non-derivative, Rule 10b5-1

3 terms

open market or private transaction financial

"transaction code description: Sale in open market or private transaction"

non-derivative financial

"transaction_type: non-derivative for common stock sales"

Rule 10b5-1 regulatory

"aff_10b5_one indicates the Rule 10b5-1 checkbox status"

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.

FAQ

What insider transactions did Pegasystems (PEGA) report in this Form 4?

Pegasystems reported that Efstathios A. Kouninis, SVP and Chief Accounting Officer, sold 1,720 shares of common stock in two open-market transactions on August 7 and 10, 2026.

How many Pegasystems (PEGA) shares did Efstathios A. Kouninis sell and at what prices?

Efstathios A. Kouninis sold 860 shares at $32.30 per share on August 7, 2026 and 860 shares at $33.10 per share on August 10, 2026, totaling 1,720 shares sold.

Were the Pegasystems (PEGA) insider sales by Kouninis made under a Rule 10b5-1 plan?

The Form 4 indicates the Rule 10b5-1 checkbox is not selected, and no footnote describes a trading plan, so the reported sales were not affirmed as made under a Rule 10b5-1 plan.

What type of transactions did the Pegasystems (PEGA) Form 4 disclose?

The Form 4 discloses two open-market or private sale transactions (code S) in Pegasystems common stock, both reported as directly owned non-derivative securities by officer Efstathios A. Kouninis.

Does the Pegasystems (PEGA) Form 4 show any derivative securities activity?

No derivative securities transactions are reported. The filing’s derivativeSummary is empty and all reported activity involves non-derivative common stock sales only.

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Form 4 Insider Transactions: What Each Field Means →

Available on EDGAR 08/11/2026 - 04:07 PM Accepted by SEC EDGAR 08/11/2026 - 04:06 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).

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^*

KOUNINIS EFSTATHIOS A

(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)
	SVP, Chief Accounting Officer

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
08/07/2026

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	08/07/2026		S		860	D	$32.3	1,869	D
Common stock	08/10/2026		S		860	D	$33.1	1,009	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:

Remarks:

	/s/ Kathryn Leach, Attorney-in-Fact for Efstathios A. Kouninis	08/11/2026
	** 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)