UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

PURSUANT TO SECTION 13 OR 15(d) OF THE

SECURITIES EXCHANGE ACT OF 1934

Date of Report (Date of earliest event reported): May 19, 2026

TIGO ENERGY, INC.

(Exact name of registrant as specified in its charter)

Delaware 001-40710 83-3583873
(State or other jurisdiction
of incorporation)
(Commission File Number) (IRS Employer
Identification No.)

655 Campbell Technology Parkway, Suite 150

Campbell, California 95008

(Address of principal executive offices, including zip code)

Registrant’s telephone number, including area code: (408) 402-0802

Not Applicable

(Former name or former address, if changed since last report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

☐Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)
☐Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)
☐Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))
☐Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Act:

Title of each class Trading Symbol(s) Name of each exchange on which registered
Common stock, par value $0.0001 per share TYGO The Nasdaq Stock Market LLC

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

Emerging growth company ☒

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

Item 5.07 Submission of Matters to a Vote of Security Holders.

On May 19, 2026, Tigo Energy, Inc. (the “Company”) held its 2026 Annual Meeting of Stockholders (the “Annual Meeting”). Set forth below are the voting results of the three proposals considered and voted upon at the Annual Meeting, which were described in the Company’s definitive proxy statement on Schedule 14A filed with the Securities and Exchange Commission (the “SEC”) on April 6, 2026.

Proposal No. 1 - To elect seven director nominees to hold office until the 2027 Annual Meeting of Stockholders.

For Withheld Broker
Non-Votes
Zvi Alon 50,064,096 40,218 10,001,846
Tomer Babai 35,756,090 14,348,224 10,001,846
Joan C. Conley 48,055,149 2,049,165 10,001,846
Sagit Manor 49,989,762 114,552 10,001,846
Michael Splinter 47,275,149 2,829,165 10,001,846
Stanley Stern 48,328,706 1,775,608 10,001,846
John Wilson 48,660,445 1,443,869 10,001,846

Proposal No. 2 - To ratify the appointment of Deloitte & Touche LLP as the Company’s independent registered public accounting firm for the fiscal year ending December 31, 2026.

For Against Abstain Broker Non-Votes
59,610,990 14,374 480,796 0.00

Proposal No. 3 - To approve the Tigo Energy, Inc. Employee Stock Purchase Plan.

For Against Abstain Broker Non-Votes
50,046,791 2,478 55,045 10,001,846

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SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

Dated: May 20, 2026

TIGO ENERGY, INC.
By: /s/ Bill Roeschlein
Name: Bill Roeschlein
Title: Chief Financial Officer

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