Birchtech CFO files initial Form 3

Birchtech Corp. filed an initial Form 3 insider report for Mioska Michael David, who serves as Chief Financial Officer.

Accepted by SEC EDGAR 05/06/2026 - 05:47 PM EDT Learn about SEC filing dates

Rhea-AI Filing Summary

Birchtech Corp. filed an initial Form 3 insider report for Mioska Michael David, who serves as Chief Financial Officer. The filing, as provided, does not list any equity holdings or report any buy, sell, or other insider transactions for him.

Key Terms

Form 3, Chief Financial Officer

2 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.

Chief Financial Officer financial

""officer_title": "Chief Financial Officer""

A Chief Financial Officer (CFO) is the person in charge of a company's money and financial planning. They decide how to spend, save, and invest funds to help the company grow and stay stable. Their role is important because good financial decisions keep the company healthy and successful.

FAQ

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

What does Birchtech Corp. (BCHT) Form 3 for Mioska Michael David show?

The Form 3 identifies Mioska Michael David as Birchtech Corp.’s Chief Financial Officer. In the provided data, it does not disclose any stock or option holdings and reports no insider transactions or derivative positions for him.

Does the Birchtech Corp. (BCHT) Form 3 report any insider share purchases or sales?

No insider purchases or sales are reported. The transaction summary shows zero buy, sell, gift, exercise, tax withholding, or restructuring entries, indicating no trading activity was disclosed in this Form 3 for Mioska Michael David.

Are any derivative securities disclosed in the Birchtech (BCHT) Form 3 for the CFO?

No derivative securities are listed. The derivative summary is empty and the transaction summary shows zero derivative transactions or exercises, indicating no options, warrants, or similar instruments are disclosed for the Chief Financial Officer here.

Does the Birchtech Corp. (BCHT) Form 3 show current holdings for the CFO?

The provided Form 3 data does not include any holding entries. The holdingEntries field is zero, meaning no specific number of Birchtech Corp. shares or derivative holdings is reported for the Chief Financial Officer in this excerpt.

What insider role is reported in Birchtech Corp. (BCHT) Form 3?

The filing lists Mioska Michael David as an officer of Birchtech Corp. with the title Chief Financial Officer. He is not flagged as a director or ten percent owner in the provided Form 3 data structure for this insider report.

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

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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^*

Mioska Michael David

(Last) (First) (Middle)

65 66A STREET

(Street)

DELTA V4L 1M3

(City) (State) (Zip)

BRITISH COLUMBIA, CANADA

(Country)

2. Date of Event Requiring Statement (Month/Day/Year)
05/01/2026

3. Issuer Name and Ticker or Trading Symbol
Birchtech Corp. [ BCHT ]

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)

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

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/ Michael Mioska	05/06/2026
	** 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)