Tigo Energy (NASDAQ: TYGO) COO granted shares as PSUs vest, stock withheld for taxes

Rhea-AI Filing Summary

Tigo Energy, Inc. Chief Operating Officer Yahui Chang reported a compensation-related stock transaction involving performance stock units and tax withholding. Chang acquired 17,461 shares of Common Stock on March 17, 2026 at a price of $0.0000 per share, reflecting shares delivered after the company’s compensation committee determined that performance conditions for previously granted performance stock units had been met based on 2025 revenue and adjusted EBITDA goals.

To cover tax obligations tied to this vesting, 9,461 shares of Common Stock were withheld at $4.1400 per share and not sold in the open market. Following these entries, Chang directly holds 212,944 shares of Common Stock. Her holdings also include restricted stock units covering 96,000 shares from a November 11, 2024 grant and 78,149 shares from an August 1, 2025 grant, which are scheduled to vest in equal annual installments over three years, subject to continued service.

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^*

Chang Yahui

(Last) (First) (Middle)

983 UNIVERSITY AVENUE

SUITE B

(Street)

LOS GATOS CALIFORNIA 95032

(City) (State) (Zip)

UNITED STATES

(Country)

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

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
03/17/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form 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)
			Code	V	Amount	(A) or (D)	Price
Common Stock	03/17/2026		A		17,461(1)	A	$0.00	222,455(2)(3)	D
Common Stock	03/17/2026		F		9,461(4)	D	$4.14	212,944(2)(3)	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. These shares of Common Stock were acquired upon a determination by the Company's Compensation Committee that the performance conditions had been met for the issuance of such shares pursuant to performance stock units ("PSUs") that were granted to the reporting person on September 16, 2024. The PSUs vest over a three-year period, with one-third of the PSUs eligible to vest each calendar year based on the achievement of performance goals for each of the calendar year periods ended December 31, 2025, 2026 and 2027 (each a "Performance Period"), subject to continued service through and including the first calendar day after the end of each such Performance Period. This amount represents the portion of the PSUs that vested following the first Performance Period, based upon the Company's achievement of the revenue and adjusted EBITDA performance goals for the year ended December 31, 2025.

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") and 78,149 shares of Common Stock underlying RSU's granted to the reporting person on August 1, 2025 (the "August 2025 Grant Date") pursuant to the Issuer's 2023 Incentive Plan. One-Third (1/3) of the RSUs 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 October 7, 2024, subject to continued service through each such vesting date.

3. (Continuation of the Footnote (2)) One-Third (1/3) of the RSUs granted to the reporting person on August 1, 2025 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 2025 Grant Date, subject to continued service through each such vesting date.

4. Represents shares of Common Stock withheld to cover the tax withholding obligations in connection with the settlement of the PSUs described in Footnote 1.

	/s/ Bill Roeschlein, as attorney-in-fact	03/19/2026
	** 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: SEC 1474 (03-26)

FAQ

What insider transaction did Tigo Energy (TYGO) report for COO Yahui Chang?

Tigo Energy reported that COO Yahui Chang received 17,461 shares of Common Stock from vested performance stock units. These shares were delivered after meeting 2025 revenue and adjusted EBITDA goals, reflecting compensation rather than an open-market purchase or sale.

Why were 9,461 Tigo Energy (TYGO) shares disposed of in this Form 4?

The 9,461 shares were withheld to satisfy tax obligations related to the vesting of performance stock units. This F-code tax-withholding disposition is not an open-market sale and does not represent a discretionary trade by the executive.

How many Tigo Energy (TYGO) shares does COO Yahui Chang hold after this Form 4?

After these transactions, COO Yahui Chang directly owns 212,944 shares of Tigo Energy Common Stock. This figure reflects the net position following delivery of vested performance stock unit shares and the related tax-withholding share reduction.

What performance conditions triggered the Tigo Energy (TYGO) stock award to the COO?

The award was triggered when Tigo Energy’s compensation committee determined performance goals were achieved for 2025. Specifically, revenue and adjusted EBITDA targets for the calendar year ended December 31, 2025, were met under previously granted performance stock units.

What additional equity awards in Tigo Energy (TYGO) does the COO have outstanding?

The COO’s holdings include restricted stock units covering 96,000 shares from a November 11, 2024 grant and 78,149 shares from an August 1, 2025 grant. These RSUs vest in three equal annual installments, subject to continued service.

Is the Tigo Energy (TYGO) Form 4 transaction a routine compensation event?

Yes. The Form 4 reflects routine equity compensation: vesting of previously granted performance stock units and associated tax withholding. No open-market buying or selling occurred, and the filing primarily documents standard executive stock-based compensation activity.