CECO director receives 2,215-share stock award

SIEGEL LAURIE reported acquisition or exercise transactions in this Form 4 filing.

Rhea-AI Filing Summary

SIEGEL LAURIE reported acquisition or exercise transactions in this Form 4 filing.

CECO Environmental Corp director Laurie Siegel reported an equity award of 2,215 shares of Common Stock. The shares were granted at a price of $0.00 per share as a stock-based compensation grant, rather than an open-market purchase.

The award will vest on May 15, 2027, tying part of Siegel's compensation to the company’s future performance over the next several years. After this award, Siegel directly holds 22,133 shares of CECO Environmental common stock, reflecting a continued ownership stake aligned with shareholders.

Insider Trade Summary

Grant/Award: 2,215 shares

Grant/Award 1 txn

Insider SIEGEL LAURIE

Role Director

Type	Security	Shares	Price	Value
Grant/Award	Common Stock	2,215	$0.00	$0.00

Holdings After Transaction: Common Stock — 22,133 shares (Direct)

Footnotes (1)

1. F1. Shares will vest on May 15, 2027.

Key Figures

Shares granted: 2,215 shares Grant price per share: $0.00 per share Shares held after grant: 22,133 shares +1 more

4 metrics

Shares granted 2,215 shares Common Stock grant on June 1, 2026

Grant price per share $0.00 per share Equity award compensation, not open-market purchase

Shares held after grant 22,133 shares Total direct ownership following the transaction

Vesting date May 15, 2027 Grant vests in full on this date per footnote

Key Terms

Grant, award, or other acquisition, Common Stock, vest

3 terms

Grant, award, or other acquisition financial

"transaction_code_description: Grant, award, or other acquisition"

Common Stock financial

"security_title: Common Stock"

Common stock represents ownership shares in a company, giving investors a stake in its success and a say in important decisions through voting rights. It is the most common type of stock traded on markets and can provide income through dividends, as well as potential for value growth. For investors, holding common stock means sharing in the company’s profits and risks.

vest financial

"Shares will vest on May 15, 2027."

A vest is the process by which an employee earns the right to receive certain benefits or ownership interests, such as stock or retirement funds, over time. It’s similar to earning a reward gradually, ensuring that the benefit becomes fully yours only after a set period or meeting specific conditions. This makes it important for investors because it determines when they can actually claim or use those benefits.

FAQ

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

What insider transaction did CECO (CECO) director Laurie Siegel report?

Laurie Siegel reported receiving a grant of 2,215 CECO Environmental common shares. The award was recorded at $0.00 per share, indicating stock-based compensation rather than a market purchase, and increases her direct holdings to 22,133 shares after the transaction.

Was Laurie Siegel’s CECO (CECO) transaction a stock purchase or a compensation grant?

The Form 4 shows a grant, award, or other acquisition of 2,215 CECO shares, coded as transaction type A. The $0.00 per share price confirms this was stock-based compensation, not an open-market stock purchase by the director.

When do the newly granted CECO (CECO) shares to Laurie Siegel vest?

The footnotes state that the 2,215 granted shares will vest on May 15, 2027. This means Siegel’s right to the full award depends on remaining through that date, aligning the compensation with longer-term company performance and board service.

How many CECO (CECO) shares does Laurie Siegel hold after this Form 4 transaction?

Following the award, Laurie Siegel is reported to directly hold 22,133 shares of CECO Environmental common stock. This figure, disclosed in the Form 4, reflects her post-transaction ownership and indicates continuing equity exposure to the company’s share performance.

Does Laurie Siegel’s CECO (CECO) grant indicate any stock sales or dispositions?

The transaction is classified as a grant, award, or other acquisition with code A and direction "acquire." The summary data shows no sales or dispositions in this filing, only an increase in holdings from the stock-based compensation grant.

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

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Accepted by SEC EDGAR 06/03/2026 - 07:15 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).

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^*

SIEGEL LAURIE

(Last) (First) (Middle)

5080 SPECTRUM DRIVE

SUITE 800E

(Street)

ADDISON TEXAS 75001

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
CECO ENVIRONMENTAL CORP [ CECO ]

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)
06/01/2026

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	06/01/2026		A		2,215(1)	A	$0	22,133	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. Shares will vest on May 15, 2027.

Remarks:

Exhibit 24: Power of Attorney

	/s/ Kiril Kovachev as Attorney-in-Fact for Laurie Siegel	06/03/2026
	** 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)