exhibit 10. 17 addendum to service agreement exhibit 10. 17 addendum to service agreement this addendum to the service agreement dated 21 august 2017 ( the “ addendum ” ) is entered into between : io biotech aps [ * * * ] ( the “ company ” ) and eva ehrnrooth ( the “ cmo ” ) 1 remuneration 1. 1 effective from 1 april 2021, the monthly gross salary is dkk 187, 500 payable monthly in arrears on the last working day of each month at the latest. 2 pension scheme 2. 1 the cmo will be part of the company ’ s general pension scheme in force from time to time. in addition to the gross salary, the company pays a pension contribution corresponding to 10 % of the cmo ’ s gross salary, cf. clause 1. 1. the cmo ’ s minimum pension contribution constitutes 3 % of the cmo ’ s gross salary, cf. clause 1. 1 3 other terms of employment 3. 1 all other terms and conditions of the employment remain unchanged. 3. 2 the cmo is to enclose this addendum to the service agreement. addenda to the service agreement from an integral part of the service agreement. date : date : for and on behalf of the company : / s / mai - britt zocca / s / eva ehrnrooth mai - britt zocca, ceo eva ehrnrooth this addendum to the service agreement dated 21 august 2017 ( the “ addendum ” ) is entered into between : io biotech aps [ * * * ] ( the “ company ” ) and eva ehrnrooth ( the “ cmo ” ) 1 remuneration 1. 1 effective from 1 april 2021, the monthly gross salary is dkk 187, 500 payable monthly in arrears on the last working day of each month at the latest. 2 pension scheme 2. 1 the cmo will be part of the company ’ s general pension scheme in force from time to time. in addition to the gross salary, the company pays a pension contribution corresponding to 10 % of the cmo ’ s gross salary, cf. clause 1. 1. the cmo ’ s minimum pension contribution constitutes 3 % of the cmo ’ s gross salary, cf. clause 1. 1 3 other terms of employment 3. 1 all other terms and conditions of the