[Form 4] TIGO ENERGY, INC. Insider Trading Activity

Rhea-AI Filing Summary

TIGO Energy Chief Operating Officer Chang Yahui reported a transaction on 10/07/2025 showing 17,155 shares of common stock were disposed of at $2.68 per share through an exempt withholding to satisfy tax obligations from vested restricted stock units (RSUs). After that withholding, the reporting person beneficially owns 204,994 shares, which includes 96,000 shares underlying RSUs granted on 11/11/2024. One-third of that grant vested and was delivered on 10/07/2025, with the remaining one-third tranches scheduled to vest on each of the second and third anniversaries of the grant date, subject to continued service.

Positive

• Tax-withholding sale of 17,155 shares indicates the disposal was to satisfy tax obligations from vested RSUs rather than an open-market liquidation
• Retained ownership of 204,994 shares after the withholding shows continued insider alignment with shareholders
• Structured vesting for 96,000 RSUs (one-third vested on 10/07/2025) provides predictable future share deliveries tied to service

Negative

• Immediate reduction in direct shares via withholding: 17,155 shares were disposed at $2.68, lowering directly held shares
• Majority of 96,000 RSUs remain unvested, so actual liquid ownership could change materially on future vesting dates

Insights

Corporate Governance Expert

Officer tax-withholding sale reflects routine RSU vesting, not an open-market sell.

The transaction reported is an exempt disposition where 17,155 shares were withheld to satisfy tax withholding for vested RSUs. This method is commonly used to meet withholding obligations without an open-market sale, which reduces selling-pressure signal to the market.

Governance implications are limited: the filing discloses retained beneficial ownership of 204,994 shares including unvested RSUs. Monitor the remaining vesting tranches on or around 11/11/2025 and 11/11/2026 for further withholding or deliveries tied to continued service.

Compensation & Equity Plan Analyst

The disclosure shows structured equity compensation with scheduled vesting and a tax-withholding event.

The reporting person holds 96,000 RSUs from the 11/11/2024 grant, with one-third vested and delivered on 10/07/2025. The withheld 17,155 shares correspond to tax obligations from that vesting and were disposed under Rule 16b-3(e).

Key items to watch: remaining vesting tranches on the second and third anniversaries of the grant date and any future filings indicating exercise, sale, or additional withholding events that would change beneficial ownership in the near term.

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
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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^*

Chang Yahui

(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)

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

3. Date of Earliest Transaction (Month/Day/Year)
10/07/2025

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	10/07/2025		F		17,155(1)	D	$2.68	204,994(2)	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

Explanation of Responses:

1. Represents shares of common stock, par value $0.0001 per share ("Common Stock") withheld in an exempt disposition to the Issuer under Rule 16b-3(e) to satisfy tax withholding obligations of the reporting person arising out of the vesting of previously reported restricted stock units ("RSUs").

2. Includes 96,000 shares of Common Stock underlying restricted stock units ("RSUs") granted to the reporting person on November 11, 2024 (the "Grant Date") pursuant to the Issuer's 2023 Incentive Plan. One-Third (1/3) of the RSUs granted to the reporting person vested and were delivered on October 7, 2025, the fist anniversary of the Grant Date, and one-third (1/3) of the RSUs subject to the grant shall vest and be deliverable on each of the second and third anniversaries of the Grant Date, subject to continued service through each such vesting date.

	/s/ Bill Roeschlein, as attorney-in-fact	10/09/2025
	** 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.

FAQ

What did the TYGO Form 4 filed for Chang Yahui report?

The filing reports an exempt disposition where 17,155 shares were withheld at $2.68 per share to satisfy tax withholding from RSU vesting; beneficial ownership after the transaction is 204,994 shares.

How many RSUs does the TYGO officer have and when do they vest?

The officer holds 96,000 RSUs granted on 11/11/2024; one-third vested and were delivered on 10/07/2025, with the remaining one-third tranches vesting on the second and third anniversaries of the grant date.

Was the sale an open-market transaction or a withholding to cover taxes?

It was an exempt withholding disposition under Rule 16b-3(e) to satisfy tax obligations arising from RSU vesting, not an open-market sale.

What is the price per share noted in the Form 4 transaction?

The Form 4 lists a price of $2.68 per share for the withheld 17,155 shares.

How many shares does Chang Yahui beneficially own after the reported transaction?

After the withholding, the reporting person beneficially owns 204,994 shares of common stock.

When should investors expect additional filings related to these RSUs?

Additional Form 4 filings may appear around the second and third anniversaries of the 11/11/2024 grant date when the remaining RSU tranches become eligible to vest.