Pegasystems director’s trust sells 1,000 shares

The trust's sale was made under a Rule 10b5-1 plan it adopted on June 15, 2026.

Rhea-AI Filing Summary

Pegasystems Inc. (PEGA) director Dianne Ledingham reported that the Dianne Ledingham Family Legacy Trust sold 1,000 shares of common stock on October 1, 2026, at $34.15 per share. The trust held 38,280 shares following the sale. The sale was made under a pre-arranged Rule 10b5-1 trading plan the trust adopted on June 15, 2026.

Insider Trade Summary 10b5-1

Net Seller: 1,000 shares

Net Sell 1 txn

Insider LEDINGHAM DIANNE

Role Director

Sold 1,000 shs ($34K)

Type	Security	Shares	Price	Value
Sale	Common stock F1	1,000	$34.15	$34K

Holdings After Transaction: Common stock — 38,280 shares (Indirect, Dianne Ledingham Family Legacy Trust)

Footnotes (1)

1. F1. Sold pursuant to a pre-arranged trading plan adopted by the Dianne Ledingham Family Legacy Trust on June 15, 2026 under Rule 10b5-1 of the Securities Exchange Act of 1934, as amended.

Key Figures

Common shares sold: 1,000 shares Sale price: $34.15 per share Trust shares following sale: 38,280 shares

3 metrics

Common shares sold 1,000 shares October 1, 2026

Sale price $34.15 per share October 1, 2026

Trust shares following sale 38,280 shares Following the October 1, 2026 sale

Key Terms

pre-arranged trading plan, Rule 10b5-1, Securities Exchange Act of 1934

3 terms

pre-arranged trading plan financial

"Sold pursuant to a pre-arranged trading plan"

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.

Rule 10b5-1 regulatory

"under Rule 10b5-1"

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.

Securities Exchange Act of 1934 regulatory

"Rule 10b5-1 of the Securities Exchange Act of 1934"

FAQ

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

How many PEGA shares did Dianne Ledingham's trust sell, and at what price?

The Dianne Ledingham Family Legacy Trust sold 1,000 PEGA common shares on October 1, 2026, at $34.15 per share. The sale was under a pre-arranged Rule 10b5-1 trading plan adopted by the trust on June 15, 2026.

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

Form 4 Insider Transactions: What Each Field Means →

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Available on EDGAR 10/05/2026 - 04:22 PM Accepted by SEC EDGAR 10/05/2026 - 04:22 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).

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^*

LEDINGHAM DIANNE

(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)

X	Director		10% Owner
	Officer (give title below)		Other (specify below)

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
10/01/2026

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	10/01/2026		S		1,000(1)	D	$34.15	38,280	I	Dianne Ledingham Family Legacy Trust

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 the Dianne Ledingham Family Legacy Trust on June 15, 2026 under Rule 10b5-1 of the Securities Exchange Act of 1934, as amended.

Remarks:

	/s/ Ewelina Kemp, Attorney-in-Fact for Dianne Ledingham	10/05/2026
	** 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)