Rosen Law Firm Seeks Lead Plaintiff in Alphabet Suit Over Gemini 3.5 Pro

What the lawsuit alleges

According to the lawsuit, as described in a press release from Rosen Law Firm, defendants made materially false and misleading statements and/or failed to disclose several facts during the Class Period. The Class Period runs from May 19, 2026 to July 16, 2026, inclusive, and covers purchasers of Alphabet securities (NASDAQ: GOOGL, GOOG).

The complaint lists three claims:

• Gemini 3.5 Pro was delivering disappointing training results.
• As a result, the launch of Gemini 3.5 Pro would be significantly delayed.
• Because of this, defendants' positive statements about Alphabet's business, operations and prospects were materially misleading and/or lacked a reasonable basis.

The lawsuit claims that investors suffered damages when the true details entered the market. These are allegations made in the suit. The press release does not report any court finding.

Lead plaintiff deadline and how to join

A class action has already been filed. Anyone who wants to serve as lead plaintiff must move the Court no later than December 1, 2026. The release describes a lead plaintiff as a representative party acting on behalf of other class members in directing the litigation.

Rosen Law Firm says investors who bought Alphabet securities during the Class Period may be entitled to compensation without paying out-of-pocket fees or costs, through a contingency fee arrangement. Investors can join through the firm's website or contact Phillip Kim, Esq. by phone or email, as listed in the release.

The firm also stresses that no class has been certified. Until that happens, investors are not represented by counsel unless they hire one, and they may choose their own lawyer. They may also remain absent class members and do nothing for now. According to the release, an investor's ability to share in any potential future recovery does not depend on serving as lead plaintiff.

The firm's pitch to investors

Much of the notice is promotion for Rosen Law Firm itself. The firm encourages investors to pick counsel with a track record in leadership roles and says that many firms issuing similar notices lack comparable experience or resources. It claims some are merely middlemen that refer clients to firms that actually litigate.

The firm says it concentrates on securities class actions and shareholder derivative litigation. By its own account, it achieved the largest ever securities class action settlement against a Chinese company and was ranked No. 1 by ISS Securities Class Action Services for the number of settlements in 2017. It says it has ranked in the top 4 each year since 2013, recovered billions of dollars for investors and secured over $438 million in 2019 alone. The release is marked as attorney advertising and notes that prior results do not guarantee a similar outcome.

What it means for investors

For investors who held Alphabet shares between May 19 and July 16, 2026, the key date is December 1, 2026, the deadline to seek the lead plaintiff role. Those who do not wish to lead the case can, according to the release, simply remain absent class members. The claims remain allegations, and the release does not say how Alphabet has responded.