Statement of Changes in Beneficial Ownership (4)

FORM 4

[ ] Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES

OMB APPROVAL

OMB Number:

3235-0287

Estimated average burden
hours per response...

0.5

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934 or Section 30(h) of the Investment Company Act of 1940

1. Name and Address of Reporting Person * PYLE MICHAEL R	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) Senior VP, Engineering
(Last)          (First)          (Middle) C/O PEGASYSTEMS INC., 1 ROGERS STREET	3. Date of Earliest Transaction (MM/DD/YYYY) 9/8/2020
(Street) CAMBRIDGE, MA 02142 (City)        (State)        (Zip)	4. If Amendment, Date Original Filed (MM/DD/YYYY)	6. Individual or Joint/Group Filing (Check Applicable Line) _X _ Form filed by One Reporting Person ___ Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1.Title of Security (Instr. 3)	2. Trans. Date	2A. Deemed Execution Date, if any	3. Trans. 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	9/8/2020		M		312 (1)	A	$0.00	10888	D
Common Stock	9/8/2020		F		139	D	$124.26	10749	D
Common Stock	9/9/2020		M		401 (2)	A	$0.00	11150	D
Common Stock	9/9/2020		F		178	D	$120.01	10972 (3)	D

Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivate Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Trans. Date	3A. Deemed Execution Date, if any	4. Trans. 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		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 of Derivative Security: 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
Restricted Stock Unit (4)	$0.00	9/8/2020		M			312	3/6/2020 (1)	(5)	Common Stock	312	$0.00	3119	D
Restricted Stock Unit (4)	$0.00	9/9/2020		M			401	3/9/2017 (2)	(5)	Common Stock	401	$0.00	804	D

Explanation of Responses:
(1)	Represents a 5% vesting on September 6, 2020, with a release date of September 8, 2020, the first business day following vesting. The original grant was 4,681 restricted stock units, with 20% vesting on March 6, 2020, and the remaining 80% vesting equal quarterly installments over the remaining four years.
(2)	Represents a 5% vesting on September 9, 2020. The original grant was 8,033 restricted stock units, with 20% vesting on March 9, 2017, and the remaining 80% vesting in equal quarterly installments over the remaining four years.
(3)	Does not include shares of common stock subject to unvested restricted stock units and/or options awards.
(4)	Each restricted stock unit represents the right to receive, following vesting, one share of the issuer's common stock.
(5)	Once vested, shares of common stock are not subject to expiration.

Reporting Owners
Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
PYLE MICHAEL R C/O PEGASYSTEMS INC. 1 ROGERS STREET CAMBRIDGE, MA 02142			Senior VP, Engineering

Signatures
/s/ Donald L. Lancaster, Attorney-in-Fact for Michael R. Pyle		9/10/2020
**Signature of Reporting Person		Date