Tigo Energy director awarded 33,068 RSUs

STERN STANLEY reported acquisition or exercise transactions in this Form 4 filing.

Rhea-AI Filing Summary

STERN STANLEY reported acquisition or exercise transactions in this Form 4 filing.

Tigo Energy director Stanley Stern reported an equity award in the form of restricted stock units. On May 20, 2026, he received 33,068 shares of Common Stock underlying RSUs granted under the company’s 2023 Incentive Plan at a stated price of $0.00 per share.

The RSUs will vest in full, and an equal number of Common Stock shares will be delivered to him, immediately prior to Tigo Energy’s 2027 Annual Meeting of Stockholders, subject to his continued service through that vesting date. Following this grant, Stern directly holds 497,283 shares of Common Stock.

Insider Trade Summary

Grant/Award: 33,068 shares

Grant/Award 1 txn

Insider STERN STANLEY

Role Director

Type	Security	Shares	Price	Value
Grant/Award	Common Stock	33,068	$0.00	$0.00

Holdings After Transaction: Common Stock — 497,283 shares (Direct)

Footnotes (1)

1. F1. Represents shares of common stock, par value $0.0001 per share ("Common Stock"), underlying restricted stock units ("RSUs") granted to the reporting person on May 20, 2026 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 2027 Annual Meeting of Stockholders, subject to continued service through such vesting date.

Key Figures

RSU grant size: 33,068 shares Grant price per share: $0.00 per share Post-grant holdings: 497,283 shares +1 more

4 metrics

RSU grant size 33,068 shares Common Stock underlying RSUs granted May 20, 2026

Grant price per share $0.00 per share Stated price for RSU-related Common Stock

Post-grant holdings 497,283 shares Total Common Stock directly owned after transaction

Vesting event 2027 Annual Meeting RSUs vest immediately prior to 2027 Annual Meeting of Stockholders

Key Terms

restricted stock units ("RSUs"), 2023 Incentive Plan, Annual Meeting of Stockholders, Common Stock

4 terms

restricted stock units ("RSUs") financial

"Represents shares of common stock, par value $0.0001 per share ("Common Stock"), underlying restricted stock units ("RSUs") granted to the reporting person"

Restricted stock units (RSUs) are a company promise to give an employee shares of stock (or cash equivalent) in the future, but only after certain conditions—usually staying with the company for a set time or hitting performance goals—are met. Investors watch RSUs because when they vest they increase the number of shares outstanding and can lead insiders to sell shares, affecting share price, company dilution and the true cost of employee pay.

2023 Incentive Plan financial

"RSUs granted to the reporting person on May 20, 2026 pursuant to the Issuer's 2023 Incentive Plan."

Annual Meeting of Stockholders financial

"immediately prior to the Issuer's 2027 Annual Meeting of Stockholders, subject to continued service through such vesting date."

Common Stock financial

"Represents shares of common stock, par value $0.0001 per share ("Common Stock"), underlying restricted stock units"

Common stock represents ownership shares in a company, giving investors a stake in its success and a say in important decisions through voting rights. It is the most common type of stock traded on markets and can provide income through dividends, as well as potential for value growth. For investors, holding common stock means sharing in the company’s profits and risks.

FAQ

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

What insider transaction did Tigo Energy (TYGO) director Stanley Stern report?

Director Stanley Stern reported receiving 33,068 shares of Common Stock underlying restricted stock units granted on May 20, 2026 under Tigo Energy’s 2023 Incentive Plan, increasing his direct holdings to 497,283 Common Stock shares after the award.

How many Tigo Energy (TYGO) shares were included in Stanley Stern’s RSU grant?

The grant covers 33,068 shares of Tigo Energy Common Stock underlying restricted stock units. These RSUs were granted on May 20, 2026 and will result in delivery of an equal number of shares when they vest, assuming continued service.

When do Stanley Stern’s Tigo Energy (TYGO) RSUs vest?

All of the RSUs granted to Stanley Stern will vest in full immediately before Tigo Energy’s 2027 Annual Meeting of Stockholders, provided he continues serving through that vesting date, at which time an equal number of Common Stock shares will be delivered.

What is Stanley Stern’s Tigo Energy (TYGO) share ownership after this Form 4?

After the reported RSU grant, Stanley Stern directly owns 497,283 shares of Tigo Energy Common Stock. This total includes the impact of the 33,068-share restricted stock unit award disclosed in the Form 4 insider transaction report.

What plan governs Stanley Stern’s new Tigo Energy (TYGO) RSUs?

The restricted stock units reported by Stanley Stern were granted pursuant to Tigo Energy’s 2023 Incentive Plan. The award consists of 33,068 RSUs that vest in full immediately before the company’s 2027 Annual Meeting of Stockholders, subject to continued service.

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

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Accepted by SEC EDGAR 05/20/2026 - 05:35 PM EDT Learn about SEC filing dates

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^*

STERN STANLEY

(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)

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

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
05/20/2026

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	05/20/2026		A		33,068(1)	A	$0.00	497,283	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"), underlying restricted stock units ("RSUs") granted to the reporting person on May 20, 2026 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 2027 Annual Meeting of Stockholders, subject to continued service through such vesting date.

	/s/ Bill Roeschlein, as attorney-in-fact	05/20/2026
	** 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)