STOCK TITAN

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

(Moderate)
(Neutral)
Form Type
4

Rhea-AI Filing Summary

Tecogen Inc. director Angelina Galiteva reported an equity compensation grant in the form of a stock option. She received options to buy 25,000 shares of common stock at an exercise price of $5.17 per share, vesting 25% per year.

The options become exercisable starting on June 26, 2027 and expire on June 26, 2036. After this grant, she holds stock options covering 25,000 underlying shares directly. This is a compensation-related award, not an open-market purchase or sale.

Positive

  • None.

Negative

  • None.
Insider Galiteva Angelina
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 shares Stock Option (Right to Buy) grant to director
Exercise price $5.17 per share Conversion or exercise price for option grant
Underlying shares 25,000 shares Common Stock underlying the stock option
Post-grant derivative holdings 25,000 options Total derivative securities following transaction
Exercise start date June 26, 2027 Option exercise date
Expiration date June 26, 2036 Option expiration date
Stock Option (Right to Buy) financial
"security_title: "Stock Option (Right to Buy)""
Grant, award, or other acquisition financial
"transaction_code_description: "Grant, award, or other acquisition""
conversion or exercise price financial
"conversion_or_exercise_price: "5.1700""
Vests 25% per year financial
"footnote: "Vests 25% per year""

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FAQ

What insider transaction did Tecogen (TGEN) director Angelina Galiteva report?

Angelina Galiteva reported receiving a stock option grant for 25,000 underlying Tecogen common shares. The options are a compensation-related award rather than an open-market trade, giving her the right to buy shares at a fixed exercise price of $5.17.

What are the key terms of Angelina Galiteva’s Tecogen (TGEN) stock option grant?

The grant covers 25,000 underlying common shares at a $5.17 exercise price. The options vest 25% per year, become exercisable starting June 26, 2027, and expire on June 26, 2036, providing long-dated equity incentives tied to Tecogen’s stock performance.

Is Angelina Galiteva’s Form 4 transaction in Tecogen (TGEN) a buy or a sale?

The Form 4 shows an acquisition via a stock option grant, not a market buy or sale. The transaction is coded as a grant or award, giving her derivative rights to purchase 25,000 Tecogen shares at a fixed $5.17 exercise price in the future.

How many Tecogen (TGEN) options does Angelina Galiteva hold after this transaction?

After the transaction, Angelina Galiteva holds stock options covering 25,000 underlying Tecogen common shares directly. These options vest over time and expire on June 26, 2036, aligning her potential future ownership with the company’s long-term performance.

How does the vesting work for Angelina Galiteva’s Tecogen (TGEN) option grant?

The stock option grant vests at a rate of 25% per year. This means portions of the 25,000 underlying shares become exercisable gradually over four years, encouraging ongoing board service and long-term alignment with Tecogen shareholder interests.
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*
Galiteva Angelina

(Last)(First)(Middle)
8845 WREN AVENUE

(Street)
FOUNTAIN VALLEY CALIFORNIA 92708

(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/ Angelina Galiteva06/30/2026
** 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)