exhibit 10. 19 certain confidential information contained in this document, marked by brackets ( [ * * * ] ), has been omitted because the information is not material and is the type of information that the registrant treats as private or confidential. dated 14 february 2022 termination wind - down and settlement agreement among lonza ag and lonza sales ag and allakos inc. contents _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ clause 1. definitions and interpretation 3 2. effect of this termination agreement 3 3. payment 4 4. raw materials. 5 5. release 5 6. agreement not to sue 6 7. costs and taxes 7 8. warranties and authority 7 9. indemnities 8 10. no admission 8 11. severability 8 12. entire agreement / construction 8 13. confidentiality 9 14. governing law 9 15. jurisdiction 10 16. contracts ( rights of third parties ) act 1999 ; no third - party beneficiaries 10 17. co - operation 10 18. counterparts 10 19. variation 10 1. definitions and interpretation 3 1. 1. definitions and interpretation definitions and interpretation 3 3 2. effect of this termination agreement 3 2. 2. effect of this termination agreement effect of this termination agreement 3 3 3. payment 4 3. 3. payment payment 4 4 4. raw materials. 5 4. 4. raw materials. raw materials. 5 5 5. release 5 5. 5. release release 5 5 6. agreement not to sue 6 6. 6. agreement not to sue agreement not to sue 6 6 7. costs and taxes 7 7. 7. costs and taxes costs and taxes 7 7 8. warranties and authority 7 8. 8. warranties and authority warranties and authority 7 7 9. indemnities 8 9. 9. indemnities indemnities 8 8 10. no admission 8 10. 10. no admission no admission 8 8 11. severability 8 11. 11. severability severability 8 8 12. entire agreement / construction 8 12. 12. entire agreement / construction entire agreement / construction 8 8 13. confidentiality 9 13. 13. confidentiality confidentiality 9 9 14. governing law 9