Tax withheld4

TIGO ENERGY, INC.

Total Value

$21.4K

Filing Date

Oct 9, 2026

1 transactions

Trade Summary

On Oct 7, 2026, Chang Yahui, Chief Operating Officer, reported $21.4K of TIGO ENERGY, INC. (TYGO) across 1 transactions. The filing covers Common Stock and reflects balanced net activity of $0. Reported prices ranged from $0.91. Insider transactions are sourced from SEC Form 4 disclosures and should be reviewed alongside company fundamentals and the insider's broader trading history.

Insider Information

Name: Chang Yahui
Role: Chief Operating Officer
Location: LOS GATOS, CA

Filing Details

Filing Date: Oct 9, 2026
Transaction Date: Oct 7, 2026
Accession Number: 0001213900-26-108519
Form Type: 4

Non-Derivative Transactions

Date	Security	Shares	Price	Type	Value
Oct 7, 2026	Common Stock	23,463	$0.91	Tax Withholding	$21.4K

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Footnotes

(F1)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").
(F2)Includes 48,000 shares of Common Stock underlying unvested RSUs granted to the reporting person on November 11, 2024 (the "November 2024 Grant Date"), 52,099 shares of Common Stock underlying RSUs granted to the reporting person on August 1, 2025 (the "August 2025 Grant Date"), and 62,700 shares of Common Stock underlying RSUs granted to the reporting person on August 7, 2026 (the "August 2026 Grant Date"), in each case, pursuant to the Issuer's 2023 Incentive Plan.
(F3)(Continuation of the Footnote (2)) One-Third (1/3) of the RSUs granted to the reporting person on the November 2024 Grant Date vested and an equal number of shares of Common Stock were delivered to the reporting person on each of October 8, 2025, and October 7, 2026. One-third (1/3) of the RSUs subject to the grant shall vest, and an equal number of shares of Common Stock will be deliverable to the reporting person, on the third anniversary of October 7, 2024, subject to continued service through each such vesting date.
(F4)(Continuation of the Footnote (2)) One-Third (1/3) of the RSUs granted to the reporting person on the August 2025 Grant Date vested and an equal number of shares of Common Stock were delivered to the reporting person on August 1, 2026, and one-third of the RSUs subject to the grant shall vest, and an equal number of shares of Common Stock will be deliverable to the reporting person, on each of the second and third anniversaries of the August 2025 Grant Date, subject to continued service through each such vesting date. One-Third (1/3) of the RSUs granted to the reporting person on the August 2026 Grant Date shall vest, and an equal number of shares of Common Stock will be deliverable to the reporting person, on each of the first three anniversaries of the August 2026 Grant Date, subject to continued service through each such vesting date.

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
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^*

Chang Yahui

(Last)

(First)

(Middle)

983 UNIVERSITY AVENUE, SUITE B

(Street)

LOS GATOS

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)
10/07/2026

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)
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	Amount	(A) or (D)	Price		6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
Common Stock	10/07/2026		F		23,463⁽¹⁾	D	$0.91	239,497⁽²⁾⁽³⁾⁽⁴⁾	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)
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)	Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	8. Price of Derivative Security (Instr. 5)		10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)

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 48,000 shares of Common Stock underlying unvested RSUs granted to the reporting person on November 11, 2024 (the "November 2024 Grant Date"), 52,099 shares of Common Stock underlying RSUs granted to the reporting person on August 1, 2025 (the "August 2025 Grant Date"), and 62,700 shares of Common Stock underlying RSUs granted to the reporting person on August 7, 2026 (the "August 2026 Grant Date"), in each case, pursuant to the Issuer's 2023 Incentive Plan.

3. (Continuation of the Footnote (2)) One-Third (1/3) of the RSUs granted to the reporting person on the November 2024 Grant Date vested and an equal number of shares of Common Stock were delivered to the reporting person on each of October 8, 2025, and October 7, 2026. One-third (1/3) of the RSUs subject to the grant shall vest, and an equal number of shares of Common Stock will be deliverable to the reporting person, on the third anniversary of October 7, 2024, subject to continued service through each such vesting date.

4. (Continuation of the Footnote (2)) One-Third (1/3) of the RSUs granted to the reporting person on the August 2025 Grant Date vested and an equal number of shares of Common Stock were delivered to the reporting person on August 1, 2026, and one-third of the RSUs subject to the grant shall vest, and an equal number of shares of Common Stock will be deliverable to the reporting person, on each of the second and third anniversaries of the August 2025 Grant Date, subject to continued service through each such vesting date. One-Third (1/3) of the RSUs granted to the reporting person on the August 2026 Grant Date shall vest, and an equal number of shares of Common Stock will be deliverable to the reporting person, on each of the first three anniversaries of the August 2026 Grant Date, subject to continued service through each such vesting date.

	/s/ Bill Roeschlein, as attorney-in-fact	10/09/2026
	** 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 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 as rendered by the SEC from accession 0001213900-26-108519.

TIGO ENERGY, INC.

Trade Summary

Company Information

Insider Information

Filing Details

Non-Derivative Transactions

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Footnotes

SEC Form 4

SEC Filing

SEC Form 4