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

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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 * BENTLEY RICHARD P.	2. Issuer Name and Ticker or Trading Symbol BENTLEY SYSTEMS INC [ BSY ]	5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director                    __X__ 10% Owner _____ Officer (give title below)    _____ Other (specify below)
(Last)          (First)          (Middle) C/O VIDEORAY LLC, 212 EAST HIGH STREET	3. Date of Earliest Transaction (MM/DD/YYYY) 3/30/2021
(Street) POTTSTOWN, PA 19464 (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
Class B Common Stock	3/30/2021		S		14393	D	$45.4055 (1)	1562239	D
Class B Common Stock	3/31/2021		S		158607	D	$47.1678 (1)	1403632	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
Class A Common Stock	(2)							(2)	(2)	Class B Common Stock	1000000		1000000	D

Explanation of Responses:
(1)	The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions on March 30, 2021 at prices ranging from $45.3000 to $45.5250, inclusive, and on March 31, 2021 at prices ranging from $45.4050 to $48.3250, inclusive. The reporting person undertakes to provide to Bentley Systems, Incorporated, any security holder of Bentley Systems, Incorporated, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote.
(2)	Each share of Class A common stock of the Issuer ("Class A Common Stock") is entitled to 29 votes per share and is convertible at any time into one share of the Issuer's Class B Common Stock. Shares of Class A Common Stock will automatically convert into shares of Class B Common Stock upon certain transfers described in the Issuer's Amended and Restated Certificate of Incorporation.

Reporting Owners
Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
BENTLEY RICHARD P. C/O VIDEORAY LLC 212 EAST HIGH STREET POTTSTOWN, PA 19464		X

Signatures
/s/ Walter J. Mostek		4/1/2021
**Signature of Reporting Person		Date