ATHERSYS, INC Bonus & Incentive Agreements

Summary of Athersys, Inc. 2022 Cash Bonus Incentive Plan (incorporated herein by reference to Exhibit 10.27 to the registrant's Annual Report on Form 10-K (Commission No.... (Filed With SEC on April 3, 2023)

Athersys, Inc. 2019 Equity and Incentive Compensation Plan, as amended and restated (Filed With SEC on August 2, 2022)

Summary of Athersys, Inc. 2022 Cash Bonus Incentive Plan (Filed With SEC on March 15, 2022)

Summary of Athersys, Inc. 2021 Cash Bonus Incentive Plan (Filed With SEC on March 25, 2021)

Form of Incentive Stock Option Agreement pursuant to the Athersys, Inc. 2019 Equity and Incentive Compensation Plan for grants beginning in 2020 (Filed With SEC on August 10, 2020)

Form of Non-Qualified Stock Option Agreement pursuant to the Athersys, Inc. 2019 Equity and Incentive Compensation Plan for grants beginning in 2020 (Filed With SEC on August 10, 2020)

Form of Non-Qualified Stock Option Agreement (Directors) pursuant to the Athersys, Inc. 2019 Equity and Incentive Compensation Plan for grants beginning in 2020 (Filed With SEC on August 10, 2020)

Summary of Athersys, Inc. 2020 Cash Bonus Incentive Plan (Filed With SEC on March 16, 2020)

Form of Incentive Stock Option Agreement pursuant to the Athersys, Inc. 2019 Equity and Incentive Compensation Plan (Filed With SEC on August 7, 2019)

Form of Non-Qualified Stock Option Agreement pursuant to the Athersys, Inc. 2019 Equity and Incentive Compensation Plan (Filed With SEC on August 7, 2019)

Form of Non-Qualified Stock Option Agreement (Directors) pursuant to the Athersys, Inc. 2019 Equity and Incentive Compensation Plan (Filed With SEC on August 7, 2019)

Form of Restricted Stock Unit Agreement (Executives) pursuant to the Athersys, Inc. 2019 Equity and Incentive Compensation Plan (Filed With SEC on August 7, 2019)

Form of Restricted Stock Unit Agreement (Non-Executive) pursuant to the Athersys, Inc. 2019 Equity and Incentive Compensation Plan (Filed With SEC on August 7, 2019)

Summary of Athersys, Inc. 2019 Cash Bonus Incentive Plan (Filed With SEC on March 15, 2019)

Summary of Athersys, Inc. 2018 Cash Bonus Incentive Plan (Filed With SEC on March 15, 2018)

SUMMARY OF ATHERSYS, INC. 2017CASH BONUS INCENTIVE PLAN (Filed With SEC on March 10, 2017)

SUMMARY OF ATHERSYS, INC. 2016CASH BONUS INCENTIVE PLAN (Filed With SEC on March 11, 2016)

SUMMARY OF ATHERSYS, INC. 2015CASH BONUS INCENTIVE PLAN (Filed With SEC on March 12, 2015)

SUMMARY OF ATHERSYS, INC. 2014CASH BONUS INCENTIVE PLAN (Filed With SEC on March 13, 2014)

AMENDMENT NO. 2 TO INCENTIVE AGREEMENT (Filed With SEC on June 20, 2013)

ATHERSYS, INC. LONG-TERM INCENTIVE PLAN (Filed With SEC on June 18, 2013)

SUMMARY OF ATHERSYS, INC. 2013 CASH BONUS INCENTIVE PLAN (Filed With SEC on March 12, 2013)

SUMMARY OF ATHERSYS, INC. 2012 CASH BONUS INCENTIVE PLAN (Filed With SEC on March 28, 2012)

ATHERSYS, INC. AMENDED AND RESTATED 2007 LONG-TERM INCENTIVE PLAN (AMENDED AND RESTATED EFFECTIVE JUNE 16, 2011) (Filed With SEC on June 20, 2011)