Tigo Energy (NASDAQ: TYGO) Securities Class Action: Investor Rights and November 23, 2026 Lead Plaintiff Deadline

The lawsuit centers on Tigo's commercial partnership with EG4 Electronics.

The complaint alleges that Tigo told investors the partnership was expected to begin contributing to company results during the second quarter of 2026 and to provide a fuller benefit beginning in the third quarter.

Plaintiff alleges that execution of the partnership had actually been delayed and that material revenue from the relationship would not begin until the fourth quarter.

The complaint further alleges that Tigo's 2026 revenue guidance incorporated revenue expectations associated with the earlier EG4 launch schedule. These allegations have not been proven.

Tigo announced a manufacturing and marketing partnership with EG4 Electronics in August 2025.

The companies planned to produce Tigo-optimized inverters and Tigo Module Level Power Electronics (MLPE) for use with EG4 solar systems in the United States.

The underlying manufacturing-and-supply agreement was entered into on August 19, 2025 and later amended and restated in December 2025.

The partnership should be understood as a real commercial agreement, not merely a proposal or preliminary discussion. This lawsuit does not allege that the EG4 relationship did not exist.

The alleged class period begins on February 24, 2026, the date of Tigo's fourth-quarter and full-year 2025 earnings call.

On that call, an analyst asked CFO Bill Roeschlein when the EG4 relationship was expected to begin contributing financially. According to the complaint, Roeschlein stated that:

• initial deliveries would begin in May;
• some financial benefit would begin in the second quarter; and
• a full benefit would begin in the third quarter.

Tigo also projected full-year 2026 revenue of approximately $130–$135 million.

At the same time, the company reported substantial year-over-year improvement, including fourth-quarter 2025 revenue of approximately $30 million (up about 73.8%), full-year 2025 revenue of approximately $103.5 million (up about 91.7%), and positive adjusted EBITDA.

The plaintiff alleges that the EG4 rollout was not actually on track to provide the contribution management described. This is the plaintiff's allegation and has not been proven.

Yes. Tigo announced on May 18, 2026 that it had made an initial delivery of U.S.-assembled MLPE products to EG4, including custom 650W optimizers, Cloud Connect Advanced devices, and Tigo Access Point units.

That fact matters. The lawsuit does not allege that the EG4 partnership was fictitious or that no products ever moved between the companies.

Instead, plaintiff alleges that the broader optimized-inverter launch and material revenue contribution occurred materially later than management had represented.

On May 5, 2026, Tigo reported first-quarter revenue of approximately $25.2 million, representing substantial year-over-year growth, along with an improved GAAP loss and improved adjusted EBITDA.

The company maintained full-year 2026 revenue guidance of $130–$135 million and guided to approximately $30–$32 million of revenue for the second quarter.

The complaint alleges that these projections continued to depend materially on an EG4 launch timeline that had already slipped. This is the plaintiff's allegation.

On August 4, 2026, Tigo reported second-quarter revenue of approximately $25.4 million, below its prior second-quarter guidance of $30–$32 million.

Tigo also reduced full-year 2026 revenue guidance from $130–$135 million to $100–$110 million, and pointed to a third-quarter revenue expectation of approximately $24–$26 million.

CFO Bill Roeschlein stated that the revised outlook reflected the U.S. optimized-inverter partner shifting its go-to-market launch to the fourth quarter, a slower ramp of Tigo's GO Battery, and a more gradual recovery in Europe. The plaintiff identifies EG4 as the optimized-inverter partner.

No. Tigo itself identified multiple factors. In addition to the partnership launch moving to the fourth quarter, management cited the slower ramp of its new GO Battery and a slower European recovery.

The securities complaint nevertheless alleges that the EG4 delay was especially significant because management acknowledged that its earlier growth expectations were predominantly related to the partnership.

According to the complaint, Alon explained during the August 4 earnings call that the company's earlier projected growth had been related predominantly to the EG4 opportunity, that the opportunity had been expected earlier in the year, and that the launch had experienced delays.

He further stated that management was now returning to a more realistic expectation of a fourth-quarter contribution.

Plaintiff contends this disclosure demonstrated that earlier expectations concerning the partnership's contribution had lacked a reasonable basis. That remains an allegation to be litigated.

According to the complaint, TYGO closed at approximately $2.04 on August 4 and approximately $1.29 on August 5 — a decline of approximately 37% — on unusually heavy trading volume.

No. Tigo also reported that second-quarter revenue increased year over year (up about 5.6%), that the company generated GAAP net income of approximately $2.2 million, that inventory declined significantly (from about $31.3 million at year-end 2025 to approximately $20.6 million), that it held approximately $16.9 million in cash and cash equivalents, and that it expected a stronger end to the year following the fourth-quarter optimized-inverter launch.

The litigation instead focuses on whether investors were adequately informed about the timing and expected financial contribution of the EG4 partnership before the August guidance reduction.

This case involves projections and guidance, so the PSLRA's safe harbor for forward-looking statements may become significant. Tigo's February 2026 release expressly identified its full-year guidance and other projections as forward-looking statements and included cautionary language regarding customer demand, partner relationships, product launches, manufacturing, inventory, and market conditions.

The complaint nevertheless alleges that certain challenged statements concerned then-existing facts and that management allegedly knew, or recklessly disregarded, that the EG4 schedule had already slipped. Whether the challenged projections are protected by the PSLRA's forward-looking-statement provisions will be one of the legal issues that may arise as the litigation proceeds.

Section 10(b) and Rule 10b-5

The complaint asserts federal securities-fraud claims under Section 10(b) and Rule 10b-5 against Tigo, Alon, and Roeschlein.

Section 20(a)

The complaint also asserts controlling-person claims against Alon and Roeschlein.

The current alleged class period is February 24, 2026 through August 4, 2026, inclusive.

Investors should preserve brokerage statements and trade records showing all TYGO purchases and sales.

The current PSLRA lead plaintiff deadline is November 23, 2026. A lead plaintiff is the investor or investor group appointed by the court to actively represent the proposed securities class and supervise class counsel. Most investors do not serve as lead plaintiff.

Do I Have to Become Lead Plaintiff?

Generally, no. Most investors remain passive class members. An investor generally does not need to seek lead-plaintiff appointment merely to remain potentially eligible for a later class recovery.

Lead Plaintiff Deadline ≠ Settlement Claim Deadline

Investors with meaningful TYGO losses who want an active role may wish to evaluate lead-plaintiff appointment before November 23, 2026.

On February 24, 2026 — the first day of the alleged class period — Tigo dated a prospectus supplement for a registered direct offering of 5,000,000 shares of common stock at $3.00 per share, for gross proceeds of approximately $15 million before fees and expenses. The February 24 closing market price was $3.54.

The current securities complaint seeks to represent persons who purchased or otherwise acquired publicly traded Tigo securities beginning February 24, 2026. Investors who acquired TYGO through the February registered direct offering should preserve their transaction records and evaluate their circumstances individually.

The current complaint asserts Exchange Act claims and does not presently assert a separate Securities Act offering claim.

Tigo previously had publicly traded warrants under the ticker TYGOW, but the company redeemed those warrants in September 2023. TYGOW was therefore no longer an active publicly traded security during the 2026 class period, and the present case principally concerns TYGO common stock.

Potentially. A federal securities class action generally seeks recovery for investor trading losses. A derivative action is different: a shareholder seeks to enforce a claim belonging to the corporation itself.

Tigo is incorporated in Delaware. Julie & Holleman LLP is separately investigating potential shareholder derivative claims and corporate-governance claims on behalf of Tigo shareholders who owned TYGO at the time of potentially actionable conduct and continue to hold their shares. Derivative standing is generally not limited to investors who purchased before February 24, 2026; a shareholder who purchased in, for example, March, April, or May could potentially have contemporaneous ownership as to conduct that occurred later. The timing must be analyzed against each particular challenged act.

Potential issues may include:

• when management learned the EG4 launch schedule had slipped;
• how partnership milestones were reported internally;
• how much of Tigo's revenue guidance depended on EG4;
• what information concerning delays reached the board;
• forecasting and disclosure controls; and
• board oversight of a significant commercial partnership.

No determination has been made that viable derivative claims exist.

Julie & Holleman LLP is investigating allegations involving Tigo Energy, TYGO, EG4 Electronics, the optimized-inverter partnership, partnership launch timing, revenue guidance, forecasting controls, disclosure practices, and corporate governance. We are interested in hearing from:

Investors With Securities Losses

Investors who purchased or otherwise acquired TYGO from February 24, 2026 through August 4, 2026 and suffered losses, including investors considering whether to seek lead-plaintiff appointment before November 23, 2026.

Current Tigo Shareholders

Shareholders who owned TYGO at the time of potentially actionable conduct and continue to hold their shares, concerning potential derivative and corporate-governance rights.

A shareholder may potentially fall into both categories.