Exhibit 1

Joint Filing Agreement

The undersigned hereby agree that a single Schedule 13D (or any amendment thereto) relating to the Ordinary Shares of VectivBio Holding AG shall be filed on behalf of each of the undersigned and that this Agreement shall be filed as an exhibit to such Schedule 13D.

April 19, 2021

Versant Venture Capital V, L.P.
By: Versant Ventures V, LLC
Its: General Partner
By:	/s/ Robin L. Praeger
	Robin L. Praeger, Managing Director
Versant Affiliates Fund V, L.P.
By: Versant Ventures V, LLC
Its: General Partner
By:	/s/ Robin L. Praeger
	Robin L. Praeger, Managing Director
Versant Ophthalmic Affiliates Fund I, L.P.
By: Versant Ventures V, LLC
Its: General Partner
By:	/s/ Robin L. Praeger
	Robin L. Praeger, Managing Director
Versant Ventures V, LLC
By:	/s/ Robin L. Praeger
	Robin L. Praeger, Managing Director
Versant Venture Capital V (Canada) LP
By: Versant Ventures V (Canada), L.P.
Its: General Partner
By: Versant Ventures V GP-GP (Canada), Inc.
Its: General Partner
By:	/s/ Robin L. Praeger
	Robin L. Praeger, Director
Versant Ventures V GP-GP (Canada), Inc.
By:	/s/ Robin L. Praeger
	Robin L. Praeger, Director
Versant Ventures V (Canada), L.P.
By: Versant Ventures V GP-GP (Canada), Inc.
Its: General Partner
By:	/s/ Robin L. Praeger
	Robin L. Praeger, Director

Versant Vantage I, L.P.
By: Versant Vantage I GP, L.P.
Its: General Partner
By: Versant Vantage I GP-GP, LLC
Its: General Partner
By:	/s/ Robin L. Praeger
	Robin L. Praeger, Managing Director
Versant Vantage I GP, L.P.
By: Versant Vantage I GP-GP, LLC
Its: General Partner
By:	/s/ Robin L. Praeger
	Robin L. Praeger, Managing Director
Versant Vantage I GP-GP, LLC
By:	/s/ Robin L. Praeger
	Robin L. Praeger, Managing Director