Certain Warrants of Sensei Biotherapeutics, Inc. are subject to a Lock-Up Agreement Ending on 2-AUG-2021. These Warrants will be under lockup for 180 days starting from 3-FEB-2021 to 2-AUG-2021.

Details:
The company's directors, executive officers and substantially all of other stockholders, optionholders and warrantholders, have agreed with the underwriters that for a period of 180 days after the date of this prospectus, subject to specified exceptions, they will not offer, pledge, sell, contract to sell, sell any option or contract to purchase, purchase any option or contract to sell, grant any option, right or warrant to sale of, or otherwise dispose of or transfer any shares of common stock, or any securities convertible into or exercisable or exchangeable for shares of common stock, request or demand that file a registration statement related to common stock or enter into any swap or other agreement that transfers to another, in whole or in part, directly or indirectly, the economic consequence of ownership of the common stock.