Tesaro, Inc. (TSRO) Loss Submission Form

The Klein Law Firm announces that a class action complaint has been filed on behalf of shareholders of Tesaro, Inc. (NASDAQ: TSRO) who purchased shares between March 14, 2016 and January 12, 2018. The action, which was filed in the United States District Court for the District of Massachusetts, alleges that the Company violated federal securities laws.

In particular, the complaint alleges that (i) substantial undisclosed health risks, including anaphylaxis and anaphylactic shock, were associated with Tesaro's intravenous formulation of VARUBI (rolapitant); and (ii) as a result of the foregoing, Tesaro's shares traded at artificially inflated prices during the Class Period, and class members suffered significant losses and damages. On January 12, 2018, Tesaro announced it had updated the U.S. labeling of VARUBI (rolapitant) injectable emulsion packages after reports that some patients receiving the treatment experienced “Anaphylaxis, anaphylactic shock and other serious hypersensitivity reactions.”

Shareholders have until March 19, 2018 to petition the court for lead plaintiff status. Your ability to share in any recovery does not require that you serve as lead plaintiff. You may choose to be an absent class member.

Please fill out the form to learn more

Keep Me Informed

The Klein Law Firm does not share your information with others. There is no cost or obligation. This submission does not create an attorney-client relationship. If we believe that you might be an appropriate lead plaintiff, we will contact you to discuss whether to establish an attorney-client relationship.

I am ready to join the action

This letter confirms that you have retained The Klein Law Firm to represent you as a named plaintiff in a shareholder action involving Tesaro, Inc.

We agree to advance all expenses in the litigation, which means that you are not liable to pay any of the expenses of the lawsuit, whether attorneys' fees or costs. Regardless of the result, we will never ask you to directly pay for any attorneys' fees or costs. Should we obtain a favorable result, we may ask the court to award us compensation to be paid by the defendants or as a portion of any class benefit, but, again, we will never ask you to directly pay any of the costs of this litigation.

As the client you are entitled to direct the litigation in any way you deem proper, and may at any time order us to dismiss the case or opt-out. Should you choose to do so, we will never ask you to reimburse us directly for any legal fees or expenses. During the course of this litigation, we may employ and/or work with other law firms to prosecute your case.

We look forward to representing you and other Tesaro, Inc. shareholders.

Sincerely,

The Klein Law Firm

Joseph Klein

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