Tigo Energy Director Converts Options, 126,904 RSUs Disclosed

Rhea-AI Filing Summary

Stanley Stern, a director of Tigo Energy, Inc. (TYGO), reported transactions dated 08/18/2025. He exercised stock options to acquire 93,340 shares at an exercise price of $0.599, increasing his reported beneficial ownership to 507,292 shares. In connection with the same activity, 43,077 shares were withheld to satisfy tax withholding obligations related to option exercise and settlement, resulting in a reported beneficial ownership of 464,215 shares after that withholding. The filing notes 126,904 shares underlying restricted stock units granted on May 19, 2025 that vest immediately prior to the 2026 annual meeting subject to continued service. The Form 4 is signed by an attorney-in-fact on behalf of the reporting person on 08/20/2025.

Positive

• Director increased vested economic exposure by exercising 93,340 options at $0.599
• Company disclosed RSUs (126,904 shares) with clear vesting timing prior to the 2026 annual meeting

Negative

• None.

Insights

Securities Analyst

TL;DR Director exercised options and holds meaningful equity, with part of the issuance withheld for taxes; transactions are routine insider activity.

The reporting shows a 93,340-share option exercise at $0.599 and 43,077 shares withheld to cover taxes from the exercise/settlement. Post-transaction beneficial ownership is reported as 507,292 shares before withholding and 464,215 after. The filing also discloses 126,904 RSUs granted May 19, 2025 that vest prior to the 2026 annual meeting, which will convert to shares if service conditions are met. These entries reflect compensation-related equity activity rather than open-market directional trading.

Corporate Governance Expert

TL;DR Equity grants and option exercises by a director align with standard compensation and reporting practices and include tax-withholding shares.

The Form 4 documents customary equity compensation mechanics: an option exercise that was fully exercisable and RSUs with time-based vesting. The withholding of 43,077 shares for taxes is explicitly tied to option settlement. No pledges, transfers to affiliates, or unusual derivative structures are reported. Disclosure appears complete for the transactions listed.

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

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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^*

STERN STANLEY

(Last) (First) (Middle)

983 UNIVERSITY AVENUE, SUITE B

(Street)

LOS GATOS CA 95032

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
TIGO ENERGY, INC. [ TYGO ]

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

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

3. Date of Earliest Transaction (Month/Day/Year)
08/18/2025

4. If Amendment, Date of Original Filed (Month/Day/Year)

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 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	08/18/2025		M		93,340	A	$0.599	507,292(1)	D
Common Stock	08/18/2025		F		43,077(2)	D	$1.3	464,215(1)	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
Common Stock	$0.599	08/10/2025		M			93,340	(3)	08/26/2025	Common Stock	93,340	$0	0	D

Explanation of Responses:

1. Includes 126,904 shares of common stock, par value $0.0001 per share ("Common Stock"), underlying restricted stock units ("RSUs") granted to the reporting person on May 19, 2025 pursuant to the Issuer's 2023 Incentive Plan. The RSUs will vest in full, and an equal number of shares of Common Stock will be deliverable to the reporting person, immediately prior to the Issuer's 2026 Annual Meeting of Stockholders, subject to continued service through such vesting date.

2. Represents shares of Common Stock that were withheld to cover the tax withholding obligations in connection with the exercise and settlement of stock options that were set to expire on August 26, 2025.

3. The stock option was fully exercisable on April 30, 2019.

	/s/ Bill Roeschlein, as attorney-in-fact	08/20/2025
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
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** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
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FAQ

What transactions did Stanley Stern report on TYGO Form 4?

He reported exercising 93,340 options at $0.599 on 08/18/2025 and 43,077 shares were withheld to satisfy tax withholding obligations.

How many shares does Stanley Stern beneficially own after the reported transactions?

The filing shows 507,292 shares following the acquisition and 464,215 shares after the tax-withholding adjustment.

What RSUs or other grants are disclosed in the Form 4 for TYGO?

The filing discloses 126,904 RSUs granted on May 19, 2025 that vest in full immediately prior to the issuer's 2026 annual meeting, subject to continued service.

Why were 43,077 shares listed as disposed of in the Form 4?

Those 43,077 shares represent shares withheld to cover tax withholding obligations in connection with the exercise and settlement of stock options.

Who signed the Form 4 filing for the reporting person?

The Form 4 was signed on behalf of the reporting person by Bill Roeschlein, as attorney-in-fact on 08/20/2025.