CN Energy director Zhang Wenbiao files Form 3

Rhea-AI Filing Summary

CN ENERGY GROUP. INC. director Zhang Wenbiao has filed an initial Form 3, which is a statement of beneficial ownership for insiders. The filing shows no reported transactions or derivative positions, and summary data indicate zero shares bought, sold, acquired, or disposed in this filing.

Key Terms

Form 3, reportingPersons, netBuySellDirection

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.

reportingPersons regulatory

""reportingPersons": [ { "name": "Zhang Wenbiao""

netBuySellDirection financial

""netBuySellDirection": "neutral""

FAQ

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

What does CN Energy (CNEY) disclose in Zhang Wenbiao’s Form 3?

The Form 3 shows director Zhang Wenbiao as a reporting person for CN Energy Group. The summarized data indicate no shares bought, sold, acquired, or disposed, and no derivative positions reported in this initial ownership statement.

Who is the reporting person in CN Energy (CNEY) Form 3?

The reporting person is Zhang Wenbiao, identified as a director of CN Energy Group. He is not listed as an officer or a ten percent owner in the filing’s metadata, which frames his role as board-level oversight rather than executive management.

Does Zhang Wenbiao report any stock transactions in CNEY’s Form 3?

No transactions are reported. The transaction summary shows zero buy, sell, acquire, dispose, and exercise counts, with netBuySellDirection described as neutral, indicating this Form 3 functions purely as an initial ownership registration without trading activity.

Are there any derivatives or options reported for Zhang Wenbiao at CN Energy?

The filing’s derivativeSummary is empty and derivativeTransactionCount is zero. This indicates no reportable derivative securities, such as options or warrants, associated with Zhang Wenbiao are included in this initial Form 3 submission for CN Energy.

What does a neutral netBuySellDirection mean in this CNEY Form 3?

A neutral netBuySellDirection reflects that no net buying or selling occurred in the reported period. For this Form 3, all transaction-related counts and share amounts are zero, so the filing records status rather than any recent insider trading activity.

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

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Accepted by SEC EDGAR 05/20/2026 - 05:07 PM EDT Learn about SEC filing dates

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^*

Zhang Wenbiao

(Last) (First) (Middle)

666 WUSU STREET

LINAN DISTRICT

(Street)

HANGZHOU

(City) (State) (Zip)

CHINA

(Country)

2. Date of Event Requiring Statement (Month/Day/Year)
03/18/2026

3. Issuer Name and Ticker or Trading Symbol
CN ENERGY GROUP. INC. [ CNEY ]

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:

No securities are beneficially owned.

	/s/ Wenbiao Zhang	05/20/2026
	** 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)