Addendum to the Lease Agreement from 01/28/2011 between
4-Antibody AG, Hochbergerstr. 60C, 4057 Basel
(Sublessee)

and

Technologie Park Basel AG, c/o Amt für Wirtschaft und Arbeit [Office for Economy
and Labor], Utengasse 36, 4005 Basel
(Principal Lessee)

The two parties named above declare that the following spaces are added to the
leased spaces in Technologie Park Basel (Hochbergerstrasse 60C, 4057 Basel) as
of 03/31/2012:

- Office: C3_26, 3rd Floor, approx. 12 m2,
- Office: C3_28, 3rd Floor, approx. 12 m2,
- Office: C3_30, 3rd Floor, approx. 24 m2,
- Office: C4_20, 4th Floor, approx. 12 m2, rent costs:

 
per month
per year
Rent
CHF 1,476.00
CHF 17,712.00
Incidental costs
CHF 338.25
CHF 4,059.00
VAT (8%)
CHF 145.15
CHF 1,741.70
Total
CHF 1,959.40
CHF 23,512.70

4-Antibody AG

Technologie Park Basel AG
Basel, on [hw:] 09/24/2012

Basel, on [hw:] 10/16/2012
[signature]
Dr. Robert Burns
Chief Executive Officer

[signature]
Hans Jürg Dolder
VR1
[signature]
Melanie Schmid
Group Head of HR
[signature]
Samuel Hess
VR2

[logo]        4-Antibody AG
4-Antibody    Hochbergerstrasse 60C

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4057 Basel / Switzerland