Pegasystems insider plans sale of 860 common shares

Pegasystems Inc. insider Efstathios A. Kouninis filed a notice of proposed sale of 860 shares of common stock through Morgan Stanley Smith Barney LLC, with an aggregate market value of $28,466.00, to be sold on or after 08/10/2026 on NASDAQ.

Rhea-AI Filing Summary

Pegasystems Inc. insider Efstathios A. Kouninis filed a notice of proposed sale of 860 shares of common stock through Morgan Stanley Smith Barney LLC, with an aggregate market value of $28,466.00, to be sold on or after 08/10/2026 on NASDAQ. The shares relate to restricted stock vesting under a registered plan, and the filing also lists recent sales of common stock over the prior three months.

Key Figures

Shares proposed for sale: 860 shares Aggregate market value: $28,466.00 Proposed sale date: 08/10/2026 +2 more

5 metrics

Shares proposed for sale 860 shares Common stock to be sold through Morgan Stanley Smith Barney LLC

Aggregate market value $28,466.00 Value of 860 common shares in proposed sale

Proposed sale date 08/10/2026 Date for NASDAQ sale of 860 common shares

Recent sale 1 860 shares for $27,778.00 Common stock sale on 08/07/2026

Recent sale 2 750 shares for $24,235.35 Common stock sale on 06/16/2026

Key Terms

Form 144, Restricted Stock Vesting, Registered Plan, aggregate market value

4 terms

Form 144 regulatory

"144: Securities Sold During The Past 3 Months"

Form 144 is a document that investors must file with the government when they plan to sell a large number of shares of a company's stock. It helps ensure transparency so everyone knows how many shares are being sold and when, which can impact the stock's price.

Restricted Stock Vesting financial

"Restricted Stock Vesting Under a Registered Plan"

Restricted stock vesting is the timetable and conditions under which shares granted to employees or insiders become fully owned and can be sold, typically requiring continued work or meeting performance goals. It matters to investors because large blocks of shares can become tradable at once, which can change share supply and price, and because vesting aligns insiders’ incentives with the company’s long‑term performance—think of it like a timed unlock that both rewards and locks in key people.

Registered Plan financial

"Restricted Stock Vesting Under a Registered Plan"

A registered plan is a savings or investment account that a government recognizes for special tax treatment and rules, such as limits on how much you can put in and conditions for withdrawals. For investors it matters because those rules change how much of your gains are taxed, how quickly your money can be accessed and what strategies make sense — like a labeled jar that gives tax breaks but comes with rules about when and how you can take the money out.

aggregate market value financial

"860 | 28466.00 | 164405000 | 08/10/2026 | NASDAQ"

Aggregate market value is the combined price you would pay to buy all outstanding shares of a company or all companies in a group at current market prices — essentially the sum of each stock’s market capitalization. It matters to investors because it shows the overall size and weight of an investment or sector (like the total cost to buy every piece of a puzzle), helps compare scale across companies or markets, and influences index composition and risk exposure.

FAQ

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

What does Pegasystems (PEGA) disclose in this Form 144 filing?

The filing discloses that Efstathios A. Kouninis plans to sell 860 PEGA common shares through Morgan Stanley Smith Barney LLC, with an aggregate market value of $28,466.00, on or after 08/10/2026 on NASDAQ.

How many Pegasystems (PEGA) shares are proposed to be sold and through which broker?

The proposed transaction covers 860 shares of Pegasystems common stock. The shares are to be sold through Morgan Stanley Smith Barney LLC Executive Financial Services, acting as the brokerage firm for the planned NASDAQ sale.

What is the aggregate market value of the Pegasystems (PEGA) shares in the proposed Form 144 sale?

The proposed sale involves an aggregate market value of $28,466.00 for 860 PEGA common shares. This value reflects the market price used for the Form 144 calculation at the time of the notice of sale.

When is the planned sale date for the Pegasystems (PEGA) Form 144 shares?

The notice states that the 860 Pegasystems common shares are expected to be sold on or after 08/10/2026 on NASDAQ. Form 144 provides advance notice and does not itself execute the transaction.

What prior Pegasystems (PEGA) stock sales by Efstathios A. Kouninis are listed?

The filing lists recent sales of Pegasystems common stock, including 860 shares on 08/07/2026 for $27,778.00, and three earlier sales of 750 shares each on 06/16/2026, 06/01/2026, and 05/29/2026, with stated aggregate amounts.

How are the Pegasystems (PEGA) shares in this Form 144 related to restricted stock vesting?

The Form 144 references restricted stock vesting under a registered plan on several June 2026 dates. These vesting events explain the source of the common shares that are now eligible for resale by Efstathios A. Kouninis.

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

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Accepted by SEC EDGAR 08/10/2026 - 04:09 PM EDT Learn about SEC filing dates

Form 144 Filer Information	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 144 NOTICE OF PROPOSED SALE OF SECURITIES PURSUANT TO RULE 144 UNDER THE SECURITIES ACT OF 1933
FORM 144

144: Filer Information

Filer CIK	0001353196
Filer CCC	XXXXXXXX
Is this a LIVE or TEST Filing?	LIVE TEST
Submission Contact Information
Name
Phone
E-Mail Address

144: Issuer Information

Name of Issuer	PEGASYSTEMS INC.
SEC File Number	001-11859
Address of Issuer	225 WYMAN STREET STE 300 WALTHAM MASSACHUSETTS 02451-1293
Phone	6173749600
Name of Person for Whose Account the Securities are To Be Sold	EFSTATHIOS A KOUNINIS
See the definition of "person" in paragraph (a) of Rule 144. Information is to be given not only as to the person for whose account the securities are to be sold but also as to all other persons included in that definition. In addition, information shall be given as to sales by all persons whose sales are required by paragraph (e) of Rule 144 to be aggregated with sales for the account of the person filing this notice.
Relationship to Issuer	Officer

144: Securities Information

Title of the Class of Securities To Be Sold	Name and Address of the Broker	Number of Shares or Other Units To Be Sold	Aggregate Market Value	Number of Shares or Other Units Outstanding	Approximate Date of Sale	Name the Securities Exchange
Common	Morgan Stanley Smith Barney LLC Executive Financial Services 1 New York Plaza 8th Floor New York NY 10004	860	28466.00	164405000	08/10/2026	NASDAQ

Furnish the following information with respect to the acquisition of the securities to be sold and with respect to the payment of all or any part of the purchase price or other consideration therefor:

144: Securities To Be Sold

Title of the Class	Date you Acquired	Nature of Acquisition Transaction	Name of Person from Whom Acquired	Is this a Gift?	Date Donor Acquired	Amount of Securities Acquired	Date of Payment	Nature of Payment *
Common	06/07/2026	Restricted Stock Vesting Under a Registered Plan	Issuer			251	06/07/2026	Not Applicable
Common	06/01/2026	Restricted Stock Vesting Under a Registered Plan	Issuer			32	06/01/2026	Not Applicable
Common	06/04/2026	Restricted Stock Vesting Under a Registered Plan	Issuer			245	06/04/2026	Not Applicable
Common	06/05/2026	Restricted Stock Vesting Under a Registered Plan	Issuer			332	06/05/2026	Not Applicable

* If the securities were purchased and full payment therefor was not made in cash at the time of purchase, explain in the table or in a note thereto the nature of the consideration given. If the consideration consisted of any note or other obligation, or if payment was made in installments describe the arrangement and state when the note or other obligation was discharged in full or the last installment paid.

Furnish the following information as to all securities of the issuer sold during the past 3 months by the person for whose account the securities are to be sold.

144: Securities Sold During The Past 3 Months

Name and Address of Seller	Title of Securities Sold	Date of Sale	Amount of Securities Sold	Gross Proceeds
EFSTATHIOS A KOUNINIS 225 Wyman Street Waltham MA 02451	Common	08/07/2026	860	27778.00
EFSTATHIOS A KOUNINIS 225 Wyman Street Waltham MA 02451	Common	06/16/2026	750	24235.35
EFSTATHIOS A KOUNINIS 225 Wyman Street Waltham MA 02451	Common	06/01/2026	750	27742.50
EFSTATHIOS A KOUNINIS 225 Wyman Street Waltham MA 02451	Common	05/29/2026	750	26062.50

144: Remarks and Signature

Remarks
Date of Notice	08/10/2026
ATTENTION:
The person for whose account the securities to which this notice relates are to be sold hereby represents by signing this notice that he does not know any material adverse information in regard to the current and prospective operations of the Issuer of the securities to be sold which has not been publicly disclosed. If such person has adopted a written trading plan or given trading instructions to satisfy Rule 10b5-1 under the Exchange Act, by signing the form and indicating the date that the plan was adopted or the instruction given, that person makes such representation as of the plan adoption or instruction date.
Signature	/s/ Efstathios Kouninis
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)