Bronstein, Gewirtz & Grossman, LLC Reminds Cabaletta Bio, Inc. (CABA) Investors of Class Action Deadline and Encourages Investors to Contact the Firm

Attorney Advertising--Bronstein, Gewirtz & Grossman, LLC notifies investors that a class action lawsuit has been filed against Cabaletta Bio, Inc. ("Cabaletta" or "the Company") (NASDAQ: CABA) and certain of its officers, on behalf of shareholders who purchased or otherwise acquired: (a) Cabaletta common stock pursuant and/or traceable to the prospectus which incorporated and formed part of the registration statement (the "Prospectus" and, together with the Registration Statement, the "Offering Documents") issued in connection with the Company's initial public offering conducted on or about October 24, 2019 (the "IPO" or "Offering"); and/or (b) Cabaletta securities between October 24, 2019 through December 13, 2021, inclusive (the “Class Period”). Such investors are encouraged to join this case by visiting the firm’s site: www.bgandg.com/caba.

This class action seeks to recover damages against Defendants for alleged violations of the Securities Act of 1933 (the “Securities Act”) and Sections 10(b) and 20(a) of the Securities Exchange Act of 1934 (the “Exchange Act”).

The Complaint alleges the Offering Documents were negligently prepared and, as a result, contained untrue statements of material fact or omitted to state other facts necessary to make the statements made not misleading and were not prepared in accordance with the rules and regulations governing their preparation. Additionally, throughout the Class Period, Defendants made materially false and misleading statements regarding the Company's business, operations, and compliance policies. Specifically, the Offering Documents and Defendants made false and/or misleading statements and/or failed to disclose that: (i) top-line data of the Phase 1 Clinical Trial indicated that DSG3-CAART had, among other things, worsened certain participants' disease activity scores and necessitated additional systemic medication to improve disease activity after DSG3-CAART infusion; (ii) accordingly, DSG3-CAART was not as effective as the Company had represented to investors; (iii) therefore, the Company had overstated DSG3-CAART's clinical and/or commercial prospects; and (iv) as a result, the Company's public statements were materially false and misleading at all relevant times.

A class action lawsuit has already been filed. If you wish to review a copy of the Complaint you can visit the firm’s site: www.bgandg.com/caba or you may contact Peretz Bronstein, Esq. or his Investor Relations Analyst, Yael Nathanson of Bronstein, Gewirtz & Grossman, LLC at 212-697-6484. If you suffered a loss in Gatos you have until April 29, 2022 to request that the Court appoint you as lead plaintiff. Your ability to share in any recovery doesn't require that you serve as a lead plaintiff.

Bronstein, Gewirtz & Grossman, LLC is a corporate litigation boutique. Our primary expertise is the aggressive pursuit of litigation claims on behalf of our clients. In addition to representing institutions and other investor plaintiffs in class action security litigation, the firm’s expertise includes general corporate and commercial litigation, as well as securities arbitration. Attorney advertising. Prior results do not guarantee similar outcomes.

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