Director boosts CECO (CECO) holdings with 3,000-share stock purchase

Rhea-AI Filing Summary

CECO Environmental director Richard F. Wallman reported an open-market purchase of 3,000 shares of common stock on September 5, 2025. The shares were bought at a weighted average price of $46.9333 per share, in multiple trades ranging from $46.80 to $47.00 per share, and are held indirectly through his spouse. Following this transaction, he also reported direct ownership of 219,909 CECO shares.

Insider Trade Summary

Net Buyer: 3,000 shares ($140,800)

Net Buy 2 txns

Insider WALLMAN RICHARD F

Role Director

Bought 3,000 shs ($141K)

Type	Security	Shares	Price	Value
Purchase	Common Stock	3,000	$46.9333	$141K
holding	Common Stock	--	--	--

Holdings After Transaction: Common Stock — 80,500 shares (Indirect, By spouse); Common Stock — 219,909 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^*

WALLMAN RICHARD F

(Last) (First) (Middle)

5080 SPECTRUM DRIVE

SUITE 800E

(Street)

ADDISON TX 75001

(City) (State) (Zip)

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)

3. Date of Earliest Transaction (Month/Day/Year)
09/05/2025

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
Common Stock	09/05/2025		P		3,000	A	$46.9333(1)	80,500	I	By spouse
Common Stock								219,909	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. Price reflects the weighted average purchase price for multiple transactions that ranged from $46.80 to $47.00 per share. The Reporting Person undertakes to provide, upon request by the Commission Staff, the Issuer or a security holder of the Issuer, full information regarding the number of shares purchased at each separate price.

	/s/ Kiril Kovachev as Attorney-in-Fact for Richard F Wallman	09/09/2025
	** 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 insider transaction did CECO (CECO) disclose for Richard F. Wallman?

CECO reported that director Richard F. Wallman purchased 3,000 shares of common stock. The transaction was an open-market buy executed on September 5, 2025, and is reported as indirectly owned through his spouse.

At what price did the CECO director buy the 3,000 shares?

The 3,000 CECO shares were purchased at a weighted average price of $46.9333 per share. Individual trades occurred in a range between $46.80 and $47.00 per share, according to the disclosed footnote.

How many CECO shares does Richard F. Wallman own after this transaction?

After the reported transaction, Richard F. Wallman indirectly owns 80,500 CECO shares through his spouse and directly holds 219,909 shares. The Form 4 provides these post-transaction ownership figures for indirect and direct holdings.

Was the CECO insider transaction a buy or a sell?

The CECO insider transaction was a buy. The Form 4 classifies it as an open-market purchase (code P), with 3,000 shares of common stock acquired on September 5, 2025, and held indirectly through the director’s spouse.

What does the footnote say about the CECO share purchase pricing?

The footnote explains that the reported price is a weighted average for multiple trades. These individual trades in CECO stock occurred at prices ranging from $46.80 to $47.00 per share, and detailed breakdowns are available upon request.