Bentley Systems (BSY) CAO faces routine 451-share tax withholding

Rhea-AI Filing Summary

Bentley Systems Inc Chief Accounting Officer Thomas F. Trimback reported a small share disposition related to taxes, not an open-market trade. On March 13, 2026, 451 shares of Class B Common Stock were withheld by the company at $38.19 per share to cover tax obligations on previously vested awards. After this tax-withholding transaction, Trimback directly holds 19,471 shares of Class B Common Stock, indicating this was a routine compensation-related event rather than a discretionary stock sale.

Insider Trade Summary

1 transaction reported

Mixed 1 txn

Insider Trimback Thomas F

Role Chief Accounting Officer

Type	Security	Shares	Price	Value
Tax Withholding	Class B Common Stock	451	$38.19	$17K

Holdings After Transaction: Class B Common Stock — 19,471 shares (Direct)

Footnotes (1)

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Form 4 Insider Transactions: What Each Field Means →

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).

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^*

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)
03/13/2026

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	03/13/2026		F(1)		451	D	$38.19	19,471	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 shares withheld by the Issuer to cover taxes due by the Reporting Person upon the vesting of awards previously granted to the Reporting Person.

	/s/ Michael T. Fischette, Attorney-in-Fact	03/17/2026
	** 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.

FAQ

What insider transaction did Bentley Systems (BSY) report for Thomas F. Trimback?

Bentley Systems reported that Chief Accounting Officer Thomas F. Trimback had 451 Class B shares withheld. The shares were retained by the company to pay taxes due on previously vested equity awards, rather than being sold in the open market.

Was the Bentley Systems (BSY) Form 4 transaction an open-market sale?

No, the Form 4 shows a tax-withholding disposition, not an open-market sale. 451 Class B shares were withheld by Bentley Systems to cover Trimback’s tax liability on vested awards, a routine administrative step tied to equity compensation.

How many Bentley Systems (BSY) shares were involved in Trimback’s tax-withholding event?

The filing reports 451 shares of Class B Common Stock at $38.19 per share. These shares were withheld by Bentley Systems to satisfy Trimback’s tax obligations arising from the vesting of previously granted equity awards, rather than sold for cash proceeds.

How many Bentley Systems (BSY) shares does Thomas F. Trimback hold after this Form 4?

After the reported tax-withholding disposition, Trimback directly owns 19,471 shares of Bentley Systems Class B Common Stock. This indicates the 451-share withholding is small relative to his remaining position and reflects routine handling of equity award taxes.

What does transaction code "F" mean in the Bentley Systems (BSY) Form 4?

Transaction code “F” indicates a tax-related disposition, where shares are delivered to the issuer to pay taxes or exercise costs. In this case, Bentley Systems withheld 451 shares from Trimback to cover taxes due on vesting of his prior equity awards.