Contract

Exhibit 10.3

  STRICTLY PRIVATE & CONFIDENTIAL Neil Brewis Addresses 6 April 2022 Tel: x00 (0)0000 000000 Fax: x00 (0)0000 000000 xxxxxxxxx@x-xxxx.xxx F-star Therapeutics Limited Eddeva B920 Babraham Research Campus Cambridge CB22 3AT United Kingdom xxx.x-xxxx.xxx

Dear Xxxx

Amendment to Service Agreement

I am writing to confirm an Amendment to your Service Agreement with effect from 31 March 2022.

The parties hereby agree as follows:

1.Section 18.6 of the Service Agreement is amended by deleting the reference to, “to the extent not assumed by an acquirer”.

2.Except as specifically modified herein, any of the other terms of the Agreement shall remain in full force and effect.

In witness whereof, the parties hereto have executed the Amendment as of the date first written above.

For F-star Therapeutics Ltd			For Employee
Signature:	/s/ Xxxxx X. Xxxxxxx		Signature:	/s/ Xxxx Xxxxxx
Name:	Xxxxx Xxxxxxx		Name:	Xxxx Xxxxxx
Title:	Chief Executive Officer		Title:	Chief Scientific Officer

F-star Therapeutics Limited Eddeva B920 | Babraham Research Campus | Cambridge, CB22 3AT, UK | T: x00 0000 000000 | xxx.x-xxxx.xxx