Amplitude, Inc.

Investors that purchased the Company’s securities and have suffered a loss, please fill in transaction information below, or email to

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There is no cost or obligation associated with submitting your information. If you are a shareholder who suffered a loss, please submit your contact information and purchase information to participate in the putative class action.

We also encourage you to contact Lesley F. Portnoy of The Portnoy Law Firm, at 310.692.8883, to discuss your rights free of charge. You can also reach us through the firm’s website at, or by email at

If you choose to take no action, you can remain an absent class member.

Joining the case through the Portnoy Law website enables investors to learn about their legal claims and take an active role in recovering their losses.

The Portnoy Law Firm represents investors around the world and specializes in securities class action lawsuits and shareholder rights litigation.

Portnoy Law Firm
Lesley F. Portnoy, Esq.,
Office: 310.692.8883
1800 Century Park East, Suite 600
Los Angeles, CA 90067

The class action lawsuit against Amplitude claims that during the Class Period, the company made inaccurate or misleading statements and failed to disclose certain critical information. Specifically, it is alleged that Amplitude’s strategy to grow its business by securing new clients and then expanding those relationships (land-and-expand) was not close to significantly boosting revenue among its newer client groups. Moreover, the lawsuit contends that the notable increase in Amplitude’s revenue during the second quarter of 2021 was a temporary effect of the COVID-19 pandemic, which did not persist into the Class Period. This resulted in a slower expansion rate among Amplitude clients than previously indicated.

On February 16, 2022, Amplitude adjusted its revenue forecast for 2022 downwards, from an expected growth of over 40% to a projected range of $226 million to $234 million, indicating a growth rate of 35% to 40%. Following this announcement, during an earnings call, Amplitude’s CFO, Hoang Vuong, acknowledged that it would take several more years for many of the company’s new clients to fully utilize Amplitude’s digital optimization capabilities, which would in turn drive significant expansion. This revelation led to a nearly 59% drop in the value of Amplitude’s stock.