Tecogen COO granted stock and options

Tecogen Inc. reported that COO and President Robert Panora received new equity awards.

The filer has since corrected this document, so the figures below are the ones originally reported and some of them may have changed. Read the amended Form 4/A for what the company says now.

Rhea-AI Filing Summary

Tecogen Inc. reported that COO and President Robert Panora received new equity awards. He acquired 9,671 shares of Common Stock as a restricted stock award under the 2022 Stock Incentive Plan, with the grant made at no cash cost to him.

Panora was also granted stock options covering 26,041 shares of Common Stock at an exercise price of $5.17 per share. The options are incentive stock options under the 2022 Stock Incentive Plan, vesting 25% per year and expiring on June 26, 2036. After these grants, his reported direct holdings from this award are 9,671 shares and 26,041 options.

Insider Trade Summary

Grant/Award: 35,712 shares

Grant/Award 2 txns

Insider Panora Robert

Role COO and President

Type	Security	Shares	Price	Value
Grant/Award	Stock Option (Right to Buy)	26,041	$5.17	$135K
Grant/Award	Common Stock	9,671	$0.00	$0.00

Holdings After Transaction: Stock Option (Right to Buy) — 26,041 contracts (Direct); Common Stock — 9,671 shares (Direct)

Footnotes (3)

1. F1. Restricted Stock Award pursuant to 2022 Stock Incentive Plan. Vests 25% per year.
2. F2. Incentive Stock Option pursuant to 2022 Stock Incentive Plan.
3. F3. Vests 25% per year

Key Figures

Restricted shares granted: 9,671 shares Options granted: 26,041 options Option exercise price: $5.17 per share +3 more

6 metrics

Restricted shares granted 9,671 shares Restricted Stock Award to COO and President Robert Panora

Options granted 26,041 options Incentive Stock Option grant to Robert Panora

Option exercise price $5.17 per share Strike price for 26,041 incentive stock options

Option expiration date June 26, 2036 Expiry of incentive stock options granted on June 26, 2026

Shares after restricted grant 9,671 shares Total Common Stock held directly by Panora after award

Options after grant 26,041 options Total derivative position from this option grant

Key Terms

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

4 terms

Restricted Stock Award financial

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

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.

Incentive Stock Option financial

"Incentive Stock Option pursuant to 2022 Stock Incentive Plan."

An incentive stock option is a type of employee benefit that gives a worker the right to buy company shares at a fixed price, with special tax advantages if the employee holds the shares for a required period. Think of it as a coupon to buy future shares at today’s price that can result in lower tax on the gain. Investors care because ISOs can dilute share count, align staff incentives with the stock price, and affect company compensation costs and the timing of potential share sales.

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."

FAQ

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

What did Tecogen (TGEN) report in this Form 4 filing for Robert Panora?

Tecogen reported equity compensation grants to COO and President Robert Panora. He received 9,671 restricted shares of Common Stock and stock options for 26,041 shares, both issued under the 2022 Stock Incentive Plan as part of his compensation package.

How many Tecogen (TGEN) shares did Robert Panora acquire directly in this Form 4?

Robert Panora acquired 9,671 shares of Tecogen Common Stock as a restricted stock award. These shares were granted at no cash cost to him and are subject to vesting, increasing his direct equity stake through company-issued compensation rather than open-market purchases.

What stock options were granted to Tecogen (TGEN) executive Robert Panora?

Robert Panora received incentive stock options for 26,041 Tecogen Common Stock shares at a $5.17 exercise price. The options were granted under the 2022 Stock Incentive Plan, vesting 25% per year, and will expire on June 26, 2036 if not exercised.

How do the new Tecogen (TGEN) equity awards to Robert Panora vest?

Both the restricted stock award and the incentive stock options to Robert Panora vest at 25% per year. This means his 9,671 restricted shares and 26,041 options become exercisable or fully owned gradually over four years, aligning compensation with continued service.

What is the exercise price and term of Robert Panora’s Tecogen (TGEN) stock options?

Robert Panora’s Tecogen stock options have an exercise price of $5.17 per share. They become exercisable over time as they vest and will remain outstanding until June 26, 2036, providing a long-term incentive horizon under the 2022 Stock Incentive Plan.

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

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Accepted by SEC EDGAR 06/30/2026 - 08:35 PM EDT Learn about SEC filing dates

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^*

Panora Robert

(Last) (First) (Middle)

C/O TECOGEN, INC.

76 TREBLE COVE ROAD, BLDG 1

(Street)

N. 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)
	COO and President

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)
			Code	V	Amount	(A) or (D)	Price
Common Stock(1)	06/26/2026		A		9,671	A	(1)	9,671	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
Stock Option (Right to Buy)(2)	$5.17	06/26/2026		A		26,041		06/26/2027(3)	06/26/2036	Common Stock	26,041	$5.17	26,041	D

Explanation of Responses:

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

2. Incentive Stock Option pursuant to 2022 Stock Incentive Plan.

3. Vests 25% per year

Remarks:

	/s/ Robert A. Panora	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)