Access Industries trims Tigo Energy (TYGO) ownership to 4.24% of shares

Rhea-AI Filing Summary

Access Industries and affiliated entities report a reduced ownership stake in Tigo Energy, Inc. common stock. The reporting persons collectively report beneficial ownership of 3,220,645 shares of Common Stock, representing 4.24% of the class, based on 75,910,794 shares outstanding as of May 1, 2026.

The filing states that as of May 18, 2026, each reporting person ceased to be the beneficial owner of more than five percent of Tigo Energy’s common stock. The shares are held directly by Clal Industries Ltd., with Access Industries entities and Len Blavatnik able to be deemed to share voting and investment power through a multi‑layer ownership structure, although they disclaim beneficial ownership of securities held directly by Clal.

Insights

Equity ownership and governance analyst

Large holder discloses its Tigo Energy stake has fallen below the 5% reporting threshold.

The amendment shows Access Industries, Clal Industries, and related entities now report beneficial ownership of 3,220,645 Tigo Energy common shares, or 4.24% of the class, using 75,910,794 shares outstanding as of May 1, 2026.

The filing highlights that Clal holds the shares directly, while Access entities and Len Blavatnik may be deemed to share voting and investment power via a multi‑entity chain but expressly disclaim beneficial ownership of Clal’s holdings. This clarifies who effectively controls the position.

As of May 18, 2026, each reporting person is no longer a beneficial owner of more than five percent, meaning future ownership changes may no longer require Schedule 13D amendments unless the stake again exceeds regulatory thresholds. Specific recent transactions are referenced in Annex A, which is not detailed here.

Key Figures

Beneficial ownership shares: 3,220,645 shares Ownership percentage: 4.24% Shares outstanding: 75,910,794 shares +2 more

5 metrics

Beneficial ownership shares 3,220,645 shares Tigo Energy common stock reported by each reporting person

Ownership percentage 4.24% Percent of Tigo Energy common stock represented by 3,220,645 shares

Shares outstanding 75,910,794 shares Tigo Energy common stock outstanding as of May 1, 2026

Event date May 18, 2026 Date each reporting person ceased to be a >5% beneficial owner

Amendment number Amendment No. 3 Amendment to Schedule 13D for Tigo Energy common stock

Key Terms

beneficial owner, Schedule 13D, sole voting power, shared dispositive power, +1 more

5 terms

beneficial owner financial

"each of the Reporting Persons ceased to be the beneficial owner of more than five percent"

A beneficial owner is the person who ultimately owns or controls a financial asset or property, even if their name isn't directly on official documents. Think of it like someone who secretly holds the keys to a safe deposit box—others may appear to have access, but the true owner is the one who benefits from what's inside. Identifying beneficial owners helps ensure transparency and prevent illegal activities like money laundering or fraud.

Schedule 13D regulatory

"filed a statement on Schedule 13G to report the acquisition that is the subject"

A Schedule 13D is a legal document that investors file with regulators when they buy a large enough stake in a company to potentially influence its management or decisions. It provides details about the investor’s intention, ownership stake, and plans, helping other investors understand who is gaining control and what their motives might be.

sole voting power financial

"Number of Shares Beneficially Owned by Each Reporting Person With: | 7 | Sole Voting Power 0.00"

Sole voting power is the exclusive right to cast votes attached to a shareholder’s stock without needing approval from anyone else. Like holding the only remote control for a TV, it lets that holder decide corporate matters such as board members, mergers, and policy changes, making it important to investors because it concentrates control and can strongly influence a company’s strategy and the value of its shares.

shared dispositive power financial

"10 | Shared Dispositive Power 3,220,645.00"

Rule 13d-2 regulatory

"This amendment is filed by the Reporting Persons in accordance with Rule 13d-2 of the Securities Exchange Act of 1934"

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

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Accepted by SEC EDGAR 05/28/2026 - 06:09 PM Learn about SEC filing dates

FAQ

What stake in Tigo Energy (TYGO) does Access Industries now report?

Access Industries and affiliated reporting persons now report beneficial ownership of 3,220,645 Tigo Energy common shares, representing 4.24% of the outstanding class. This percentage is calculated using 75,910,794 shares outstanding as of May 1, 2026, from Tigo’s Form 10-Q.

Why did Access Industries file Amendment No. 3 regarding Tigo Energy (TYGO)?

Amendment No. 3 was filed to report the disposition of Tigo Energy common stock and update ownership information. The filing states that, as of May 18, 2026, each reporting person ceased to be a beneficial owner of more than five percent of Tigo’s common stock.

Who actually holds the Tigo Energy (TYGO) shares reported in this Schedule 13D/A?

The filing states that 3,220,645 Tigo Energy shares are owned directly by Clal Industries Ltd.. Access Industries entities and Len Blavatnik may be deemed to share voting and investment power through a multilevel ownership chain but each disclaims beneficial ownership of the securities held directly by Clal.

What is the significance of the 4.24% ownership figure in Tigo Energy (TYGO)?

The 4.24% ownership represents the reporting persons’ beneficial stake in Tigo Energy’s common stock, calculated against 75,910,794 shares outstanding. Because this is below five percent, the filers state they have ceased to be beneficial owners of more than five percent as of May 18, 2026.

How is the outstanding share count for Tigo Energy (TYGO) determined in this filing?

All ownership percentages use an outstanding share count of 75,910,794 Tigo Energy common shares as of May 1, 2026. This figure is taken from Tigo Energy’s Form 10-Q filed with the SEC on May 5, 2026, and serves as the basis for the 4.24% calculation.

Where are the recent Tigo Energy (TYGO) transactions by Access Industries described?

The filing explains that transactions in Tigo Energy securities by the reporting persons within 60 days of the statement are listed in Annex A, filed as Exhibit 99.8. That annex is incorporated by reference and contains the detailed trade information referenced in Item 5(c).

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13D

Under the Securities Exchange Act of 1934

(Amendment No. 3)

Tigo Energy, Inc.

(Name of Issuer)

Common Stock, $0.0001 par value

(Title of Class of Securities)

77867P104

(CUSIP Number)

Alejandro Moreno
Access Industries, Inc., 40 West 57th St., 28th Floor
New York, NY, 10019
(212) 247-6400

Langhorne S. Perrow
Access Industries, Inc., 40 West 57th St., 28th Floor
New York, NY, 10019
(212) 247-6400

Nicholas P. Pellicani
Debevoise & Plimpton LLP, 28 Tudor Street
London, X0, EC4Y 0AY
44 20 7786 9000

(Name, Address and Telephone Number of Person Authorized to Receive Notices and Communications)

05/18/2026

(Date of Event Which Requires Filing of This Statement)

If the filing person has previously filed a statement on Schedule 13G to report the acquisition that is the subject of this Schedule 13D, and is filing this schedule because of §§ 240.13d-1(e), 240.13d-1(f) or 240.13d-1(g), check the following box.

The information required on the remainder of this cover page shall not be deemed to be "filed" for the purpose of Section 18 of the Securities Exchange Act of 1934 ("Act") or otherwise subject to the liabilities of that section of the Act but shall be subject to all other provisions of the Act (however, see the Notes).

schemaVersion:

SCHEDULE 13D

CUSIP Number(s): 77867P104

1

Name of reporting person

Access Industries Holdings LLC

2

Check the appropriate box if a member of a Group (See Instructions)

(a)
(b)

3

SEC use only

4

Source of funds (See Instructions)

SC

5

Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)

6

Citizenship or place of organization

DELAWARE

Number of Shares Beneficially Owned by Each Reporting Person With:

7	Sole Voting Power 0.00
8	Shared Voting Power 3,220,645.00
9	Sole Dispositive Power 0.00
10	Shared Dispositive Power 3,220,645.00

11

Aggregate amount beneficially owned by each reporting person

3,220,645.00

12

Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)

13

Percent of class represented by amount in Row (11)

4.24 %

14

Type of Reporting Person (See Instructions)

OO

Comment for Type of Reporting Person:

All percentages of ownership of the Common Stock by Reporting Persons presented in this Statement are based on an aggregate of 75,910,794 shares of Common Stock outstanding as of May 1, 2026, as set forth in the Issuer's Form 10-Q filed with the Securities and Exchange Commission (the "SEC") on May 5, 2026.

SCHEDULE 13D

CUSIP Number(s): 77867P104

1

Name of reporting person

Access Industries, LLC

2

Check the appropriate box if a member of a Group (See Instructions)

(a)
(b)

3

SEC use only

4

Source of funds (See Instructions)

SC

5

Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)

6

Citizenship or place of organization

DELAWARE

Number of Shares Beneficially Owned by Each Reporting Person With:

7	Sole Voting Power 0.00
8	Shared Voting Power 3,220,645.00
9	Sole Dispositive Power 0.00
10	Shared Dispositive Power 3,220,645.00

11

Aggregate amount beneficially owned by each reporting person

3,220,645.00

12

Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)

13

Percent of class represented by amount in Row (11)

4.24 %

14

Type of Reporting Person (See Instructions)

OO

Comment for Type of Reporting Person:

All percentages of ownership of the Common Stock by Reporting Persons presented in this Statement are based on an aggregate of 75,910,794 shares of Common Stock outstanding as of May 1, 2026, as set forth in the Issuer's Form 10-Q filed with the SEC on May 5, 2026.

SCHEDULE 13D

CUSIP Number(s): 77867P104

1

Name of reporting person

Access Industries Management, LLC

2

Check the appropriate box if a member of a Group (See Instructions)

(a)
(b)

3

SEC use only

4

Source of funds (See Instructions)

SC

5

Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)

6

Citizenship or place of organization

UNITED STATES

Number of Shares Beneficially Owned by Each Reporting Person With:

7	Sole Voting Power 0.00
8	Shared Voting Power 3,220,645.00
9	Sole Dispositive Power 0.00
10	Shared Dispositive Power 3,220,645.00

11

Aggregate amount beneficially owned by each reporting person

3,220,645.00

12

Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)

13

Percent of class represented by amount in Row (11)

4.24 %

14

Type of Reporting Person (See Instructions)

OO

Comment for Type of Reporting Person:

All percentages of ownership of the Common Stock by Reporting Persons presented in this Statement are based on an aggregate of 75,910,794 shares of Common Stock outstanding as of May 1, 2026, as set forth in the Issuer's Form 10-Q filed with the SEC on May 5, 2026.

SCHEDULE 13D

CUSIP Number(s): 77867P104

1

Name of reporting person

Clal Industries Ltd.

2

Check the appropriate box if a member of a Group (See Instructions)

(a)
(b)

3

SEC use only

4

Source of funds (See Instructions)

SC

5

Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)

6

Citizenship or place of organization

ISRAEL

Number of Shares Beneficially Owned by Each Reporting Person With:

7	Sole Voting Power 3,220,645.00
8	Shared Voting Power 0.00
9	Sole Dispositive Power 3,220,645.00
10	Shared Dispositive Power 0.00

11

Aggregate amount beneficially owned by each reporting person

3,220,645.00

12

Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)

13

Percent of class represented by amount in Row (11)

4.24 %

14

Type of Reporting Person (See Instructions)

CO

Comment for Type of Reporting Person:

All percentages of ownership of the Common Stock by Reporting Persons presented in this Statement are based on an aggregate of 75,910,794 shares of Common Stock outstanding as of May 1, 2026, as set forth in the Issuer's Form 10-Q filed with the SEC on May 5, 2026.

SCHEDULE 13D

CUSIP Number(s): 77867P104

1

Name of reporting person

Len Blavatnik

2

Check the appropriate box if a member of a Group (See Instructions)

(a)
(b)

3

SEC use only

4

Source of funds (See Instructions)

SC

5

Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)

6

Citizenship or place of organization

UNITED STATES

Number of Shares Beneficially Owned by Each Reporting Person With:

7	Sole Voting Power 0.00
8	Shared Voting Power 3,220,645.00
9	Sole Dispositive Power 0.00
10	Shared Dispositive Power 3,220,645.00

11

Aggregate amount beneficially owned by each reporting person

3,220,645.00

12

Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)

13

Percent of class represented by amount in Row (11)

4.24 %

14

Type of Reporting Person (See Instructions)

IN

Comment for Type of Reporting Person:

All percentages of ownership of the Common Stock by Reporting Persons presented in this Statement are based on an aggregate of 75,910,794 shares of Common Stock outstanding as of May 1, 2026, as set forth in the Issuer's Form 10-Q filed with the SEC on May 5, 2026.

SCHEDULE 13D

Item 1.	Security and Issuer
(a)	Title of Class of Securities: Common Stock, $0.0001 par value
(b)	Name of Issuer: Tigo Energy, Inc.
(c)	Address of Issuer's Principal Executive Offices: 983 University Avenue, Suite B, Los Gatos, CALIFORNIA , 95032.
Item 1 Comment: This Amendment No. 3 to the Schedule 13D is being filed by Access Industries Holdings LLC ("AIH"), Access Industries Management, LLC ("AIM"), Access Industries, LLC ("Access LLC"), Clal Industries Ltd. ("CI") and Len Blavatnik (collectively, the "Reporting Persons", and each, a "Reporting Person") to report the disposition of common stock, $0.0001 par value per share (the "Common Stock"), of Tigo Energy, Inc. (the "Issuer"). The Schedule 13D filed by the Reporting Persons with the Securities and Exchange Commission (the "SEC") on June 2, 2023 (the "Schedule"), as amended and supplemented by Amendment No. 1 to Schedule 13D, filed with the SEC on November 6, 2025, and as amended and supplemented by Amendment No. 2 to Schedule 13D, filed with the SEC on March 17, 2026, is hereby amended and supplemented by the Reporting Persons as set forth below in this Amendment No. 3. This amendment is filed by the Reporting Persons in accordance with Rule 13d-2 of the Securities Exchange Act of 1934, as amended, and refers only to information that has materially changed since the filing of the Schedule. The items identified below, or the particular paragraphs of such items which are identified below, are amended as set forth below. Unless otherwise indicated, all capitalized terms used and not defined herein have the respective meanings assigned to them in the Schedule.
Item 5.	Interest in Securities of the Issuer
(a)	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.
(b)	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.
(c)	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 99.8 attached hereto and incorporated herein by reference.
(d)	3,220,645 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.
(e)	As of May 18, 2026, each of the Reporting Persons ceased to be the beneficial owner of more than five percent of the Issuer's shares of Common Stock.
Item 7.	Material to be Filed as Exhibits.
	99.8 Annex A

SIGNATURE

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

Access Industries Holdings LLC

Signature:	/s/ Alejandro Moreno
Name/Title:	By: Access Industries Management, LLC, its manager; its Executive Vice President, General Counsel/Alejandro Moreno
Date:	05/28/2026

Access Industries, LLC

Signature:	/s/ Alejandro Moreno
Name/Title:	By: Access Industries Management, LLC, its manager; its Executive Vice President, General Counsel/Alejandro Moreno
Date:	05/28/2026

Access Industries Management, LLC

Signature:	/s/ Alejandro Moreno
Name/Title:	By: Access Industries Management, LLC, its manager; its Executive Vice President, General Counsel/Alejandro Moreno
Date:	05/28/2026

Clal Industries Ltd.

Signature:	/s/ Nufar Malovani
Name/Title:	Nufar Malovani /Deputy CEO and General Counsel
Date:	05/28/2026

Signature:	/s/ Alon Heller
Name/Title:	Alon Heller/Vice President
Date:	05/28/2026

Len Blavatnik

Signature:	*/s/ Alejandro Moreno
Name/Title:	By: Alejandro Moreno as Attorney-in-Fact for Len Blavatnik
Date:	05/28/2026

Comments accompanying signature:

* The above signed, by signing his name hereto, executes this Amendment No. 3 to Schedule 13D pursuant to the Limited Power of Attorney executed on behalf of Mr. Blavatnik and filed herewith.