STOCK TITAN

Tecogen (TGEN) director receives 25,000-share stock option grant at $5.17

(Moderate)
(Neutral)
Form Type
4

Rhea-AI Filing Summary

Tecogen Inc. director John M. Albertine received a grant of stock options covering 25,000 shares of common stock. The options have an exercise price of $5.17 per share, vest 25% per year, and are scheduled to expire on June 26, 2036. Following this grant, he holds 25,000 derivative securities directly.

Positive

  • None.

Negative

  • None.
Insider ALBERTINE JOHN M
Role Director
Type Security Shares Price Value
Grant/Award Stock Option (Right to Buy) 25,000 $5.17 $129K
Holdings After Transaction: Stock Option (Right to Buy) — 25,000 shares (Direct)
Footnotes (1)
  1. F1. Vests 25% per year
Option grant size 25,000 options Stock Option (Right to Buy) grant
Exercise price $5.17 per share Conversion or exercise price for options
Underlying shares 25,000 shares Common Stock underlying the options
Expiration date June 26, 2036 Option expiration
Holdings after grant 25,000 derivative securities Total options following transaction
Stock Option (Right to Buy) financial
"security_title: Stock Option (Right to Buy)"
derivative financial
"transaction_type: derivative"
A derivative is a financial contract whose value depends on the price or performance of another asset or measure — for example a stock, index, interest rate, commodity, or currency. Investors use derivatives like insurance or leveraged bets to hedge risk, speculate, or gain exposure without owning the underlying asset; they can protect portfolios but also amplify losses and introduce counterparty and market risk.
exercise price financial
"conversion_or_exercise_price: 5.1700"
The exercise price is the fixed amount at which you can buy or sell an asset, like a stock, when using an options contract. It matters because it helps determine whether exercising the option will be profitable or not, depending on the current market price. Think of it as the set price you agree on today to buy or sell later.
vesting financial
"Footnote: Vests 25% per year"
Vesting is the process by which you earn full ownership of something, like company stock or a retirement benefit, over time. It’s like earning the right to keep a gift piece by piece the longer you stay with a company, making sure employees stay committed before they receive all the benefits.
expiration date financial
"expiration_date: 2036-06-26T00:00:00.000Z"
The expiration date is the deadline after which a financial contract, such as an option or a futures agreement, is no longer valid or can be exercised. It matters to investors because it determines the timeframe during which they can take action or benefit from the contract, similar to how a coupon or a food item has a limited period of usefulness. Once the expiration date passes, the contract loses its value or ability to be used.

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

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FAQ

What insider transaction did Tecogen (TGEN) report for John M. Albertine?

Tecogen reported that director John M. Albertine received a grant of stock options for 25,000 shares of common stock. These are compensation-related derivative awards, not an open-market purchase or sale of existing Tecogen shares.

What is the exercise price of John M. Albertine’s Tecogen stock options?

The granted Tecogen stock options have an exercise price of $5.17 per share. This is the fixed price at which he may buy Tecogen common stock under the option terms if and when the options are exercised.

How many Tecogen shares underlie John M. Albertine’s new stock options?

The option grant covers 25,000 underlying shares of Tecogen common stock. These shares are not issued immediately; they may be acquired in the future if Albertine exercises the options after vesting conditions are met.

What are the vesting terms of John M. Albertine’s Tecogen stock option grant?

The stock options vest 25% per year according to the footnote disclosure. This means the right to exercise is earned gradually over four years, aligning the director’s potential equity gains with longer-term service to Tecogen.

When do John M. Albertine’s Tecogen stock options expire?

The options are scheduled to expire on June 26, 2036. After that expiration date, any unexercised portion of the 25,000-share option grant will lapse, and he will no longer be able to buy Tecogen shares under this award.
SEC Form 4
FORM 4UNITED 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*
ALBERTINE JOHN M

(Last)(First)(Middle)
100 FEDERAL DRIVE

(Street)
FREDERICKSBURG VIRGINIA 22405

(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)
XDirector10% Owner
Officer (give title below)Other (specify below)
2a. Foreign Trading Symbol
3. Date of Earliest Transaction (Month/Day/Year)
06/26/2026
6. Individual or Joint/Group Filing (Check Applicable Line)
XForm 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)
CodeVAmount(A) or (D)Price
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)
CodeV(A)(D)Date ExercisableExpiration DateTitleAmount or Number of Shares
Stock Option (Right to Buy)$5.1706/26/2026A25,00006/26/2027(1)06/26/2036Common Stock25,000$5.1725,000D
Explanation of Responses:
1. Vests 25% per year
Remarks:
/s/ John M. Albertine06/30/2026
** Signature of Reporting PersonDate
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)