Pegasystems director affiliate proposes $34.2K sale

The Dianne Ledingham Family Legacy Trust, identified as an affiliate of a Pegasystems Inc. director, gave notice of a proposed sale of 1,000 common shares with an aggregate market value of $34,150 and an approximate sale date of October 1, 2026.

Rhea-AI Filing Summary

The Dianne Ledingham Family Legacy Trust, identified as an affiliate of a Pegasystems Inc. director, gave notice of a proposed sale of 1,000 common shares with an aggregate market value of $34,150 and an approximate sale date of October 1, 2026. The notice lists Merrill Lynch as broker. William Ledingham signed as trustee; it also reports that the trust sold 1,000 common shares on September 15, 2026, with an aggregate market value of $38,000.

Key Figures

Proposed sale: 1,000 shares Aggregate market value of proposed sale: $34,150 Prior three-month sale: 1,000 shares +2 more

5 metrics

Proposed sale 1,000 shares Common shares; approximate sale date October 1, 2026

Aggregate market value of proposed sale $34,150 Proposed common-share sale

Prior three-month sale 1,000 shares Common shares sold September 15, 2026

Aggregate market value of prior sale $38,000 Common shares sold September 15, 2026

Shares outstanding 164,404,945 shares Listed in the securities information

Key Terms

Rule 144, RSU Vest, trustee

3 terms

Rule 144 regulatory

"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.

RSU Vest technical

"RSU Vest"

trustee financial

"as trustee and on behalf of the Dianne Ledingham Family Legacy Trust"

A trustee is a person or institution legally appointed to hold and manage assets or enforce an agreement on behalf of other people (beneficiaries). Think of a trustee as a neutral referee or custodian who must act in the beneficiaries’ best interests, follow the trust or contract rules, and handle distributions, recordkeeping and enforcement. Investors care because a trustworthy trustee protects their rights, ensures promised payments or remedies are delivered, and can influence recoveries if things go wrong.

FAQ

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

How many PEGA shares are covered by the proposed sale?

The proposed sale covers 1,000 common shares, with an aggregate market value of $34,150 and an approximate sale date of October 1, 2026. Merrill Lynch is listed as the broker.

How many PEGA shares did the trust sell in the prior three months?

The trust's reported prior-three-month sale was 1,000 common shares on September 15, 2026, with an aggregate market value of $38,000.

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

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Available on EDGAR 10/01/2026 - 03:53 PM Accepted by SEC EDGAR 10/01/2026 - 03:53 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	0001684701
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
Address of Issuer	225 Wyman Street Waltham MASSACHUSETTS 02451
Phone	617-374-9600
Name of Person for Whose Account the Securities are To Be Sold	Dianne Ledingham Family Legacy Trust U/A DTD 3/12/2025
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	Affiliate of the Director

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	Merrill Lynch 45 William Street Suite 100 Wellesley MA 02481	1000	34150	164404945	10/01/2026	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	08/16/2021	RSU Vest	Issuer			1570	08/16/2021	N/A
common	08/17/2020	RSU Vest	Issuer			1704	08/17/2020	N/A

* 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
Dianne Ledingham Family Legacy Trust 225 Wyman Street Waltham MA 02451	common	09/15/2026	1000	38000

144: Remarks and Signature

Remarks	Sales executed for William Ledingham, as trustee and on behalf of the Dianne Ledingham Family Legacy Trust U/A DTD 3/12/2025
Date of Notice	10/01/2026
Date of Plan Adoption or Giving of Instruction, If Relying on Rule 10b5-1	06/15/2026
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	William Ledingham, TTEE
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)