New CECO Environmental (CECO) director files initial insider ownership report

Rhea-AI Filing Summary

CECO Environmental Corp director George Marcus J filed an initial Form 3, which is a statement of beneficial ownership for insiders. This filing shows no reported stock transactions, no option exercises, and no derivative positions in the data provided, serving as a baseline disclosure of his status as a director.

Key Figures

Buy shares reported: 0 shares Sell shares reported: 0 shares Net buy/sell shares: 0 shares

3 metrics

Buy shares reported 0 shares Form 3 transaction summary buyShares

Sell shares reported 0 shares Form 3 transaction summary sellShares

Net buy/sell shares 0 shares Form 3 transaction summary netBuySellShares

Key Terms

Form 3, reporting persons, director

3 terms

Form 3 regulatory

"INSIDER FILING DATA (Form 3): {"

Form 3 is the initial public filing that officers, directors and large shareholders must submit to report their ownership of a company’s securities when they become insiders. It acts like an opening inventory sheet that gives investors a starting point to see who holds significant stakes and to spot later trades or potential conflicts of interest, helping assess insider confidence and transparency.

reporting persons regulatory

""reportingPersons": [ { "name": "GEORGE MARCUS J""

director regulatory

""is_director": 1,"

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SEC Form 3

FORM 3

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

INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

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:			3235-0104
Estimated average burden
hours per response:			0.5

1. Name and Address of Reporting Person^*

GEORGE MARCUS J

(Last) (First) (Middle)

5080 SPECTRUM DRIVE

SUITE 800E

(Street)

ADDISON TEXAS 75001

(City) (State) (Zip)

UNITED STATES

(Country)

2. Date of Event Requiring Statement (Month/Day/Year)
06/01/2026

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

3a. Foreign Trading Symbol

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

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

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

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 Beneficially Owned
1. Title of Security (Instr. 4)	2. Amount of Securities Beneficially Owned (Instr. 4)	3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	4. Nature of Indirect Beneficial Ownership (Instr. 5)

Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 4)	2. Date Exercisable and Expiration Date (Month/Day/Year)		3. Title and Amount of Securities Underlying Derivative Security (Instr. 4)		4. Conversion or Exercise Price of Derivative Security	5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

Remarks:

Exhibit 24: Power of Attorney

No securities are beneficially owned.

	/s/ Kiril Kovachev as Attorney-in-Fact for Marcus J. George	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 5 (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 3: SEC 1473 (03-26)

FAQ

What does the CECO Form 3 filing by George Marcus J represent?

The Form 3 for CECO Environmental Corp reports director George Marcus J’s initial insider ownership status. It serves as a baseline disclosure when someone becomes a reporting insider, before any subsequent Form 4 or Form 5 transaction updates.

Does the CECO Form 3 for George Marcus J show any share purchases or sales?

No, the CECO Form 3 shows no reported share purchases or sales by George Marcus J. Transaction summary fields list zero buy shares, zero sell shares, and zero net shares, indicating no trading activity in this filing.

Are there any derivative securities reported in the CECO Form 3?

No derivative securities are reported for George Marcus J in the CECO Form 3. The derivative summary is empty and the derivative transaction count is zero, indicating no options, warrants, or similar instruments in this data set.

What is the role of George Marcus J at CECO Environmental Corp?

George Marcus J is identified as a director of CECO Environmental Corp in the Form 3. Directors are considered insiders and must report their beneficial ownership and later transactions in company securities through SEC filings.

Does the CECO Form 3 indicate any gifts, tax withholdings, or restructurings?

The CECO Form 3 lists zero gifts, zero tax-withholding dispositions, and zero restructuring-related share movements. These zero counts indicate no such non-market transactions are reported for George Marcus J in this filing.