Form 3 Filing - Power of Attorney for Brigette Roberts

This filing is an Exhibit 24, a Power of Attorney for Brigette Roberts, Chief Corp. Affairs Officer and Director at Quince Therapeutics, Inc. The document grants Brendan Hannah and Dirk Thye the authority to execute and submit Forms 3, 4, and 5 to the SEC on behalf of Ms. Roberts. This power of attorney is necessary due to an administrative delay in obtaining Ms. Roberts's EDGAR filing credentials. The document specifies the scope of the attorneys-in-fact's authority, including preparing, executing, and filing necessary forms, and taking any action deemed beneficial or legally required. The power of attorney remains in effect until Ms. Roberts is no longer required to file these forms, she revokes it in writing, or the appointed attorneys-in-fact are no longer employed by the Company. The filing date for this Power of Attorney is May 15, 2026, and it was signed by Ms. Roberts on June 11, 2026.