Adicet Bio Announces Reverse Stock Split

On December 26, 2025 Adicet Bio, Inc. (Nasdaq: ACET), a clinical stage biotechnology company discovering and developing allogeneic gamma delta T cell therapies for autoimmune diseases and cancer, reported that its board of directors has determined to effect a one-for-16 reverse stock split of Adicet’s common stock, par value $0.0001 per share.

Schedule your 30 min Free 1stOncology Demo!
Discover why more than 1,500 members use 1stOncology™ to excel in:

Early/Late Stage Pipeline Development - Target Scouting - Clinical Biomarkers - Indication Selection & Expansion - BD&L Contacts - Conference Reports - Combinatorial Drug Settings - Companion Diagnostics - Drug Repositioning - First-in-class Analysis - Competitive Analysis - Deals & Licensing

                  Schedule Your 30 min Free Demo!

The reverse stock split ratio approved by the board of directors is within the previously disclosed range of ratios for a reverse stock split authorized by the stockholders of the company at the 2025 Special Meeting of Stockholders of Adicet held on December 19, 2025. The reverse stock split will take effect at 12:01 a.m. Eastern Time on December 30, 2025, and Adicet’s common stock will begin trading on a split-adjusted basis on The Nasdaq Capital Market as of the opening of trading on December 30, 2025. The CUSIP number of 007002207 will be assigned to Adicet’s common stock when the reverse stock split becomes effective.

When the reverse stock split becomes effective, every sixteen (16) of Adicet’s issued shares of common stock will be combined into one issued share of common stock, without any change to the par value per share. This will reduce the number of outstanding shares of common stock from approximately 153.3 million shares to approximately 9.6 million shares. The reverse stock split will not affect the absolute number of Adicet’s authorized shares of common stock, which will remain at 300,000,000, but the total number of shares of Adicet’s common stock available for future issuance will increase.

Proportional adjustments will also be made to the number of shares of common stock awarded and available for issuance under Adicet’s equity incentive plans, as well as the exercise price and the number of shares issuable upon the exercise or conversion of Adicet’s outstanding stock options and other equity securities under Adicet’s equity incentive plans. All outstanding pre-funded warrants will also be adjusted in accordance with their terms, which will result in proportionate adjustments being made to the number of shares issuable upon exercise of such warrants and to the exercise prices of such warrants, as applicable.

No fractional shares will be issued in connection with the reverse stock split. Stockholders who would otherwise be entitled to receive fractional shares will automatically be entitled to receive cash in lieu of such fractional share.

Stockholders with shares held in book-entry form or through a bank, broker, or other nominee are not required to take any action and will see the consequence of the reverse stock split reflected in their accounts on or after December 30, 2025. Such beneficial holders may contact their bank, broker, or nominee for more information.

The reverse stock split is intended to enable Adicet to regain compliance with the minimum bid price requirement for continued listing on the Nasdaq Capital Market.

(Press release, Adicet Bio, DEC 26, 2025, View Source [SID1234661629])