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F1 | The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by Ares Trading, S.A. on April 29, 2021. |
This Form 4 is being filed by each of the following persons (together, the Reporting Persons): Ares Trading SA, the direct beneficial owner of the shares, Merck Serono SA, Aubonne, Switzerland, an affiliate of Merck KGaA, Darmstadt, Germany, an indirect beneficial owner of the shares, and Merck KGaA, Darmstadt, Germany, an indirect beneficial owner of the shares. Ares Trading SA is a dominantly controlled subsidiary of Merck Serono SA, Aubonne, Switzerland, an affiliate of Merck KGaA, Darmstadt, Germany. Merck Serono SA, Aubonne, Switzerland is a wholly owned I indirect subsidiary of Merck KGaA, Darmstadt, Germany. Merck KGaA, Darmstadt, Germany is a publicly traded company (Frankfurt Stock Exchange, DAX 30) and the beneficiary of the two companies.