TECOGEN (TGEN) CAO receives 29,013-share restricted stock award vesting over four years

Filing Impact

(Neutral)

Filing Sentiment

(Neutral)

Form Type

Rhea-AI Filing Summary

TECOGEN INC. Chief Accounting Officer Roger P. Deschenes reported an acquisition of 29,013 shares of common stock through a restricted stock award. The award was granted at no cash cost per share and represents his entire directly held position after the transaction. The grant vests in equal 25% installments each year under the company’s 2022 Stock Incentive Plan, meaning the shares become fully owned over four years as service conditions are met.

Insider Trade Summary

1 transaction reported

Mixed 1 txn

Insider Deschenes Roger P.

Role CAO

Type	Security	Shares	Price	Value
Grant/Award	Common Stock	29,013	$0.00	--

Holdings After Transaction: Common Stock — 29,013 shares (Direct, null)

Footnotes (1)

Restricted Stock Award pursuant to 2022 Stock Incentive Plan. Vests 25% per year. Vests 25% per year.

Key Figures

Restricted stock granted: 29,013 shares Grant price: $0.0000 per share Shares held after grant: 29,013 shares +1 more

4 metrics

Restricted stock granted 29,013 shares Common Stock award on June 26, 2026

Grant price $0.0000 per share Restricted stock award to CAO

Shares held after grant 29,013 shares Direct ownership following transaction

Vesting rate 25% per year Restricted stock award vesting schedule

Key Terms

Restricted Stock Award, 2022 Stock Incentive Plan, vests 25% per year, Form 4

4 terms

Restricted Stock Award financial

"Restricted Stock Award pursuant to 2022 Stock Incentive Plan."

A restricted stock award is company shares given to an employee or executive that cannot be sold or fully owned until certain conditions—like staying with the company for a set time or hitting performance targets—are met. Think of it as a gift that only becomes yours after you fulfill specific obligations; for investors, these awards matter because they can increase the total shares outstanding when they vest, reveal how management is being paid and motivated, and create potential selling pressure when restrictions lift.

2022 Stock Incentive Plan financial

"Restricted Stock Award pursuant to 2022 Stock Incentive Plan."

vests 25% per year financial

"Restricted Stock Award pursuant to 2022 Stock Incentive Plan. Vests 25% per year."

Form 4 regulatory

"INSIDER FILING DATA (Form 4):"

Form 4 is a official document that company insiders, such as executives or major shareholders, file with regulators whenever they buy or sell company shares. It provides transparency about how those with inside knowledge are trading, helping investors see if insiders are confident in the company's prospects or may be selling for personal reasons. This information can influence investor decisions by revealing insiders' perspectives on the company's value.

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Form 4 Insider Transactions: What Each Field Means →

Available on EDGAR 06/30/2026 - 08:35 PM Accepted by SEC EDGAR 06/30/2026 - 08:35 PM

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^*

Deschenes Roger P.

(Last)

(First)

(Middle)

76 TREBLE COVE ROAD

(Street)

NORTH BILLERICA

MASSACHUSETTS

01862

(City)

(State)

(Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
TECOGEN INC. [ TGEN ]

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

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

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
06/26/2026

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)
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	Amount	(A) or (D)	Price		6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
Common Stock⁽¹⁾	06/26/2026		A		29,013	A	⁽¹⁾	29,013⁽²⁾	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)
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)	Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	8. Price of Derivative Security (Instr. 5)		10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)

Explanation of Responses:

1. Restricted Stock Award pursuant to 2022 Stock Incentive Plan. Vests 25% per year.

2. Vests 25% per year.

Remarks:

	/s/ Roger P. Deschenes	06/30/2026
	** 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)

Source: View Original Filing on SEC EDGAR

FAQ

What insider transaction did TECOGEN INC. (TGEN) report for Roger P. Deschenes?

TECOGEN INC. reported that CAO Roger P. Deschenes received 29,013 shares of common stock as a restricted stock award. This non-cash grant reflects equity compensation rather than an open-market purchase and establishes his reported direct holdings at 29,013 shares after the transaction.

Was the TECOGEN INC. (TGEN) insider transaction an open-market buy or a stock grant?

The TECOGEN INC. transaction was a stock grant, not an open-market buy. Roger P. Deschenes acquired 29,013 common shares at a stated price of $0.0000 per share as a restricted stock award under the 2022 Stock Incentive Plan, reflecting compensation rather than a market trade.

How many TECOGEN INC. (TGEN) shares does Roger P. Deschenes hold after this Form 4?

After the reported transaction, Roger P. Deschenes holds 29,013 shares of TECOGEN INC. common stock directly. These shares were acquired entirely through a restricted stock award, with vesting conditions that release ownership over time according to the plan’s 25%-per-year schedule.

What are the vesting terms of the TECOGEN INC. (TGEN) restricted stock for Roger P. Deschenes?

The restricted stock award for Roger P. Deschenes vests 25% per year. This means the 29,013 granted shares become fully owned over four years, as each annual tranche vests under TECOGEN INC.’s 2022 Stock Incentive Plan, assuming continued service through each vesting date.

Which TECOGEN INC. (TGEN) equity plan governed Roger P. Deschenes’ restricted stock grant?

The restricted stock grant to Roger P. Deschenes was made under TECOGEN INC.’s 2022 Stock Incentive Plan. This plan authorizes equity-based compensation, including restricted stock awards that typically vest over time, aligning executive incentives with long-term company performance and shareholder interests.