13D Filings
Tigo Energy, Inc.
TYGO
Amendment
Ownership

5.37%

Total Shares

4,057,315

Issuer CIK

1855447

Event Date

Mar 12, 2026

Accepted

Mar 17, 2026, 04:27 PM

Reporting Persons (5)
Joint Filing

This is a joint filing. The reported shares may overlap between reporting persons and should not be summed.

NameType% of ClassAggregateSole VotingShared Voting
Access Industries Holdings LLC
Other
5.37%4,057,31504,057,315
Access Industries, LLC
Other
5.37%4,057,31504,057,315
Access Industries Management, LLC
Other
5.37%4,057,31504,057,315
Clal Industries Ltd.
CO
5.37%4,057,3154,057,3150
Len Blavatnik
Individual
5.37%4,057,31504,057,315
Disclosure Items (3)

Security Title

Common Stock, $0.0001 par value

Issuer Name

Tigo Energy, Inc.

Issuer Address

983 University Avenue, Suite B, Los Gatos, CA, 95032

Percentage of Class

The disclosure in Items 5(a), (b) and (d) is hereby amended and restated as follows: (a) (b) The responses of each of the Reporting Persons with respect to Rows 11, 12, and 13 of the cover pages of this Schedule 13D that relate to the aggregate number and percentage of shares of Common Stock (including but not limited to footnotes to such information) are incorporated herein by reference.

Number of Shares

The responses of each of the Reporting Persons with respect to Rows 7, 8, 9, and 10 of the cover pages of this Schedule 13D that relate to the number of shares of Common Stock as to which each of the persons or entities referenced in Item 2 above has sole or shared power to vote or to direct the vote of and sole or shared power to dispose of or to direct the disposition of (including but not limited to footnotes to such information) are incorporated herein by reference.

Transactions

The disclosure in Item 5(c) is hereby supplemented by adding the following at the end thereof: (c) The transactions in the Issuer's securities effected by the Reporting Persons within 60 days prior to this filing are set forth on Annex A, filed as Exhibit 99.6 attached hereto and incorporated herein by reference.

Shareholders

4,057,315 shares of Common Stock are owned directly by CI and each of AIH, Access LLC, AIM and Mr. Blavatnik may be deemed to share voting and investment power over the shares of Common Stock owned by CI because (i) Len Blavatnik controls AIM, AIH, Access LLC and AI International GP Limited (the general partner of AI SMS, as defined below), (ii) Access LLC controls a majority of the outstanding voting interests in AIH, (iii) AIM controls Access LLC and AIH, (iv) AIH owns a majority of the equity of AI SMS L.P. ("AI SMS"), (v) AI SMS owns a majority of the equity of AI Diversified Holdings Ltd. ("Holdings Limited"), (vi) Holdings Limited owns AI Diversified Parent S.a r.l., which owns AI Diversified Holdings S.a r.l., which owns Access AI Ltd ("Access AI"), and (vii) Access AI wholly owns Clal Industries Ltd. ("CI"). Each of the Reporting Persons (other than CI), and each of their affiliated entities and the officers, partners, members and managers thereof, disclaims beneficial ownership of the securities held directly by CI.

99.6 Annex A 99.7 Joint Filing Agreement, dated as of March 17, 2026.

Tigo Energy, Inc. — Schedule 13D | 13D Filings