Turbogen director reports 36K-share stake

Q: What insider ownership does TRBG director Deri David report?

Deri David reports direct ownership of 36,123 ordinary shares of Turbogen Ltd. and options over an additional 30,177 ordinary shares. These positions reflect his initial reported holdings as a director.

Q: How many stock options does TRBG director Deri David hold and how do they vest?

He holds 30,177 options, granted on March 9, 2025, and vesting in three equal installments of 33.3% beginning March 9, 2025. As of August 25, 2026, 20,118 options are fully vested and none have been exercised.

Q: How many TRBG options held by Deri David are vested as of August 25, 2026?

As of August 25, 2026, 20,118 options held by Deri David are fully vested. The disclosure also states that none of these vested options have yet been exercised into ordinary shares.

Q: Does the TRBG disclosure indicate any option exercises by Deri David?

No. The disclosure states that as of August 25, 2026, none of the 30,177 granted options have been exercised into ordinary shares, even though 20,118 of them are fully vested.

Turbogen Ltd. (TRBG) reported the initial equity holdings of director Deri David.

Filing Impact

(Moderate)

Filing Sentiment

(Neutral)How Sentiment works

Sentiment and the balance of points

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Form Type

Rhea-AI Filing Summary

Turbogen Ltd. (TRBG) reported the initial equity holdings of director Deri David. He holds 36,123 ordinary shares directly and options over 30,177 ordinary shares.

The options were granted on March 9, 2025, with an exercise price of NIS 8.95 per share, which for this report was converted to $2.99 per share using an exchange rate of NIS 2.994 to $1.00 as of August 24, 2026. They vest in three equal installments of 33.3% beginning March 9, 2025; as of August 25, 2026, 20,118 options are fully vested and none have been exercised into ordinary shares.

Insider Trade Summary

2 transactions reported

Mixed 2 txns

Insider Deri David

Role Director

Type	Security	Shares	Price	Value
holding	Share option (right to buy) ^{F2, F1}	--	--	--
holding	Ordinary shares	--	--	--

Holdings After Transaction: Share option (right to buy) — 30,177 contracts (Direct); Ordinary shares — 36,123 shares (Direct)

Footnotes (2)

F1. A total of 30,177 options were granted on March 9, 2025 and vest in three equal installments of 33.3% beginning March 9, 2025. As of August 25, 2026, 20,118 options are fully vested and none have been exercised into ordinary shares.
F2. The options were granted with an exercise price of NIS 8.95 per share. For purposes of this Form 3, the exercise price has been converted into U.S. dollars using an exchange rate of NIS 2.994 to USD $1.00 as of August 24, 2026, resulting in an exercise price of $2.99 per share.

Key Figures

Ordinary shares held: 36,123 shares Options granted: 30,177 options Vested options: 20,118 options +3 more

6 metrics

Ordinary shares held 36,123 shares Direct holdings reported by director Deri David

Options granted 30,177 options Options over ordinary shares granted on March 9, 2025

Vested options 20,118 options Options fully vested as of August 25, 2026

Exercise price (NIS) NIS 8.95 per share Original exercise price of the options

Exercise price (USD equivalent) $2.99 per share Converted using exchange rate as of August 24, 2026

Exchange rate NIS 2.994 = $1.00 Rate used to convert the exercise price into U.S. dollars

Key Terms

exercise price, vest in three equal installments, ordinary shares, exchange rate

4 terms

exercise price financial

"The options were granted with an exercise price of NIS 8.95 per share."

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.

vest in three equal installments financial

"A total of 30,177 options were granted on March 9, 2025 and vest in three equal installments of 33.3% beginning March 9, 2025."

ordinary shares financial

"As of August 25, 2026, 20,118 options are fully vested and none have been exercised into ordinary shares."

Ordinary shares are a type of ownership stake in a company, giving shareholders a right to participate in the company’s profits and decision-making through voting. They are similar to owning a piece of a business, and their value can rise or fall based on the company's performance. Investors buy ordinary shares to potentially earn dividends and benefit from the company's growth over time.

exchange rate financial

"For purposes of this Form 3, the exercise price has been converted into U.S. dollars using an exchange rate of NIS 2.994 to USD $1.00 as of August 24, 2026."

Exchange rate is the price of one currency expressed in another—for example, how many euros you receive for one US dollar. It matters to investors because changes in that price alter the reported profits, costs and value of assets for companies and portfolios that operate or hold money across borders; think of it like switching measurement units, where the same item can look bigger or smaller depending on the unit used.

FAQ

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

What insider ownership does TRBG director Deri David report?

Deri David reports direct ownership of 36,123 ordinary shares of Turbogen Ltd. and options over an additional 30,177 ordinary shares. These positions reflect his initial reported holdings as a director.

How many stock options does TRBG director Deri David hold and how do they vest?

He holds 30,177 options, granted on March 9, 2025, and vesting in three equal installments of 33.3% beginning March 9, 2025. As of August 25, 2026, 20,118 options are fully vested and none have been exercised.

What is the exercise price of Deri David’s options in TRBG?

The options were granted with an exercise price of NIS 8.95 per share. For this disclosure, the company converted that amount to $2.99 per share using an exchange rate of NIS 2.994 to USD $1.00 as of August 24, 2026.

How many TRBG options held by Deri David are vested as of August 25, 2026?

As of August 25, 2026, 20,118 options held by Deri David are fully vested. The disclosure also states that none of these vested options have yet been exercised into ordinary shares.

Does the TRBG disclosure indicate any option exercises by Deri David?

No. The disclosure states that as of August 25, 2026, none of the 30,177 granted options have been exercised into ordinary shares, even though 20,118 of them are fully vested.

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

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Available on EDGAR 09/02/2026 - 09:10 AM EDT Accepted by SEC EDGAR 08/31/2026 - 08:07 AM EDT

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^*

Deri David

(Last)

(First)

(Middle)

22 EFAL STREET, KIRYAT ARYEH

(Street)

PETAH TIKVA

4951122

(City)

(State)

(Zip)

ISRAEL

(Country)

2. Date of Event Requiring Statement (Month/Day/Year)
08/28/2026

3. Issuer Name and Ticker or Trading Symbol
Turbogen Ltd. [ TRBG ]

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)

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

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)
Ordinary shares	36,123	D

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)
1. Title of Derivative Security (Instr. 4)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	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)
Share option (right to buy)	03/29/2025⁽¹⁾	03/09/2032	Ordinary shares	30,177	$2.99⁽²⁾	D

Explanation of Responses:

1. A total of 30,177 options were granted on March 9, 2025 and vest in three equal installments of 33.3% beginning March 9, 2025. As of August 25, 2026, 20,118 options are fully vested and none have been exercised into ordinary shares.

2. The options were granted with an exercise price of NIS 8.95 per share. For purposes of this Form 3, the exercise price has been converted into U.S. dollars using an exchange rate of NIS 2.994 to USD $1.00 as of August 24, 2026, resulting in an exercise price of $2.99 per share.

	/s/ David Deri	08/31/2026
	** 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)

Source: View Original Filing on SEC EDGAR