Pegasystems officer to sell 39,627 shares

An officer of Pegasystems Inc. filed a Rule 144 notice to sell 39,627 PEGA shares with an indicated value of about $1.42 million.

Rhea-AI Filing Summary

PEGASYSTEMS INC (PEGA) received a Rule 144 notice from officer Kenneth Stillwell Jr. covering a proposed sale of 39,627 shares of common stock through Morgan Stanley Smith Barney LLC. The shares have an aggregate market value of $1,417,437.98, based on the prices used in the notice.

The filing states that the company had 164,404,945 shares of common stock outstanding, and that the planned sale date is September 11, 2026. The shares available for sale arise from multiple sources, including restricted stock vesting under a registered plan, previously exercised options, and purchases through an employee stock purchase plan.

Key Figures

Shares to be sold: 39,627 shares Aggregate market value: $1,417,437.98 Shares outstanding: 164,404,945 shares +3 more

6 metrics

Shares to be sold 39,627 shares Maximum common shares covered by the Rule 144 notice

Aggregate market value $1,417,437.98 Value of 39,627 Pegasystems Inc. shares referenced in the notice

Shares outstanding 164,404,945 shares Pegasystems Inc. common stock outstanding as referenced in the notice

Planned sale date September 11, 2026 Date listed for the proposed Rule 144 sale

Previously exercised options 8,184 shares One tranche of shares identified as from previously exercised options on May 14, 2025

Largest single restricted stock vesting tranche 7,044 shares Restricted stock vesting under a registered plan on March 5, 2025

Key Terms

Rule 144, Restricted Stock Vesting Under a Registered Plan, Previously Exercised Options, Employee Stock Purchase Plan

4 terms

Rule 144 regulatory

"See the definition of "person" in paragraph (a) of Rule 144."

Rule 144 is a U.S. securities regulation that sets conditions under which restricted or insider-held shares can be legally resold to the public, such as required holding periods, availability of public information, limits on how much can be sold at once, and certain filing requirements. For investors it matters because it determines when previously locked-up shares can enter the market — like a release valve that can increase supply, affect share price, and signal insider intent.

Restricted Stock Vesting Under a Registered Plan financial

"Common | 12/07/2024 | Restricted Stock Vesting Under a Registered Plan |"

Previously Exercised Options financial

"Common | 05/14/2025 | Previously Exercised Options | Issuer"

Employee Stock Purchase Plan financial

"Shares Purchased Through Employee Stock Purchase Plan | Issuer"

An employee stock purchase plan is a company program that lets workers buy shares through small payroll deductions, often at a discount to the market price and after a set offering period. Think of it like a workplace savings plan that turns into ownership: it encourages employees to share in the company’s success and can create predictable buying or selling of stock that investors watch because it affects supply, demand and employee incentives.

FAQ

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

What does the Form 144 filing disclose for PEGA?

The notice discloses that officer Kenneth Stillwell Jr. plans to sell up to 39,627 shares of Pegasystems Inc. common stock under Rule 144 through a brokerage firm, with an indicated aggregate market value of $1,417,437.98 and a planned sale date of September 11, 2026.

How many PEGA shares are covered by the planned Rule 144 sale?

The filing covers a proposed sale of 39,627 shares of Pegasystems Inc. common stock. These shares are to be sold through Morgan Stanley Smith Barney LLC as noted in the Rule 144 securities information section.

What is the approximate market value of the PEGA shares in the Form 144?

The Form 144 lists an aggregate market value of $1,417,437.98 for the 39,627 shares of Pegasystems Inc. common stock covered by the notice, based on the valuation information included in the filing.

When is the planned sale date for the PEGA shares under this Rule 144 notice?

The filing indicates a planned sale date of September 11, 2026 for the Pegasystems Inc. common stock to be sold under Rule 144. This date appears in the securities information section of the notice.

How many PEGA shares were outstanding as referenced in the Form 144?

The Form 144 states that Pegasystems Inc. had 164,404,945 shares of common stock outstanding. This figure is provided in the securities information section as context for the planned Rule 144 sale.

What are the sources of the PEGA shares to be sold under Rule 144?

According to the filing, the shares to be sold come from restricted stock vesting under a registered plan, previously exercised options, and shares purchased through an Employee Stock Purchase Plan, with specific vesting and purchase dates listed between 2024 and 2026.

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

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Available on EDGAR 09/11/2026 - 04:20 PM Accepted by SEC EDGAR 09/11/2026 - 04:19 PM 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	0001680115
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	KENNETH STILLWELL JR.
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	39627	1417437.98	164404945	09/11/2026	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	12/07/2024	Restricted Stock Vesting Under a Registered Plan	Issuer			3166	12/07/2024	Not Applicable
Common	03/01/2025	Restricted Stock Vesting Under a Registered Plan	Issuer			1778	03/01/2025	Not Applicable
Common	03/02/2025	Restricted Stock Vesting Under a Registered Plan	Issuer			820	03/02/2025	Not Applicable
Common	03/03/2025	Restricted Stock Vesting Under a Registered Plan	Issuer			844	03/03/2025	Not Applicable
Common	03/05/2025	Restricted Stock Vesting Under a Registered Plan	Issuer			7044	03/05/2025	Not Applicable
Common	03/07/2025	Restricted Stock Vesting Under a Registered Plan	Issuer			3164	03/07/2025	Not Applicable
Common	05/14/2025	Previously Exercised Options	Issuer			8184	05/14/2025	Cash
Common	09/01/2026	Restricted Stock Vesting Under a Registered Plan	Issuer			1425	09/01/2026	Not Applicable
Common	09/04/2026	Restricted Stock Vesting Under a Registered Plan	Issuer			1960	09/04/2026	Not Applicable
Common	09/05/2026	Restricted Stock Vesting Under a Registered Plan	Issuer			2669	09/05/2026	Not Applicable
Common	09/07/2026	Restricted Stock Vesting Under a Registered Plan	Issuer			3165	09/07/2026	Not Applicable
Common	06/30/2024	Shares Purchased Through Employee Stock Purchase Plan	Issuer			492	06/30/2024	Cash
Common	09/30/2024	Shares Purchased Through Employee Stock Purchase Plan	Issuer			276	09/30/2024	Cash
Common	03/31/2025	Shares Purchased Through Employee Stock Purchase Plan	Issuer			500	03/31/2025	Cash
Common	06/30/2025	Shares Purchased Through Employee Stock Purchase Plan	Issuer			140	06/30/2025	Cash
Common	03/04/2026	Restricted Stock Vesting Under a Registered Plan	Issuer			4000	03/04/2026	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

Nothing to Report

144: Remarks and Signature

Remarks
Date of Notice	09/11/2026
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/ Kenneth Stillwell
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)