[Form 4] BENTLEY SYSTEMS INC Insider Trading Activity

Rhea-AI Filing Summary

Thomas F. Trimback, the Chief Accounting Officer of Bentley Systems, Inc. (BSY), reported an acquisition on 09/30/2025 of 13 shares of Class B Common Stock as a deemed acquisition at $0.00. The filing states these represent dividend equivalent rights that accrued in connection with a dividend on previously granted awards and that they vest on the same terms as the underlying awards. Following the reported transaction, the reporting person beneficially owns 14,440 shares in a direct ownership form. The Form 4 was signed by an attorney-in-fact on 10/02/2025.

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

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

1. Name and Address of Reporting Person^*

Trimback Thomas F

(Last) (First) (Middle)

C/O BENTLEY SYSTEMS, INCORPORATED

685 STOCKTON DRIVE

(Street)

EXTON PA 19341

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
BENTLEY SYSTEMS INC [ BSY ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

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

3. Date of Earliest Transaction (Month/Day/Year)
09/30/2025

4. If Amendment, Date of Original Filed (Month/Day/Year)

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. 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
Class B Common Stock	09/30/2025		A(1)		13	A	$0.00	14,440	D

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. Represents dividend equivalent rights that accrued to the Reporting Person in connection with a dividend paid by the Issuer on awards previously granted and vest on the same terms as the awards to which they relate.

	/s/ Michael T. Fischette, Attorney-in-Fact	10/02/2025
	** 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.

FAQ

What transaction did Thomas F. Trimback report on Form 4 for BSY?

The filing reports an acquisition of 13 shares of Class B Common Stock on 09/30/2025 recorded at $0.00 as dividend equivalent rights.

What is the ownership after the reported transaction for BSY insider Trimback?

Following the transaction the reporting person beneficially owns 14,440 shares of Class B Common Stock in direct form.

Why were the 13 shares issued to the reporting person?

The filing explains they represent dividend equivalent rights that accrued in connection with a dividend paid on previously granted awards and vest on the same terms as those awards.

Who signed the Form 4 for the Trimback transaction and when?

The form was signed by Michael T. Fischette, Attorney-in-Fact on 10/02/2025.

What position does the reporting person hold at Bentley Systems (BSY)?

The reporting person, Thomas F. Trimback, is listed as the Chief Accounting Officer.