Poseida Therapeutics, Inc.

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PSTX STOCK ALERT: HALPER SADEH LLC IS INVESTIGATING WHETHER THE SALE OF POSEIDA THERAPEUTICS, INC. IS FAIR TO SHAREHOLDERS

November 26, 2024.

New York, New York—Halper Sadeh LLC, an investor rights law firm, is investigating whether the sale of Poseida Therapeutics, Inc. (NASDAQ: PSTX) to Roche Holdings, Inc. for $9.00 per share in cash, plus a non-tradeable contingent value right to receive certain contingent payments of up to an aggregate of $4.00 per share in cash upon achievement of specific milestones, is fair to Poseida shareholders.

The investigation concerns whether Poseida and its board of directors violated the federal securities laws and/or breached their fiduciary duties to shareholders by failing to, among other things: (1) obtain the best possible consideration for Poseida shareholders; (2) determine whether Roche is underpaying for Poseida; and (3) disclose all material information necessary for Poseida shareholders to adequately assess and value the merger consideration.

On behalf of Poseida shareholders, Halper Sadeh LLC may seek increased consideration for shareholders, additional disclosures and information concerning the proposed transaction, or other relief and benefits. We would handle the action on a contingent fee basis, whereby you would not be responsible for out-of-pocket payment of our legal fees or expenses.

Halper Sadeh LLC represents investors all over the world who have fallen victim to securities fraud and corporate misconduct. Our attorneys have been instrumental in implementing corporate reforms and recovering millions of dollars on behalf of defrauded investors.

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I currently hold, and will continue to hold, at least one share of Poseida Therapeutics, Inc. while the matter, if any, is pending.*

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Signed pursuant to California Civil Code Section 1633.1, et seq., and the Uniform Electronic Transactions Act as adopted by the various states and territories of the United States.

Date of signing: January 17, 2025

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