Bayer, DE000BAY0017

Bayer stock ends the day higher after Stivarga sale

Published on 09/21/2026 at 23:26 | Editorial responsibility: Rafael Müller, Editor-in-Chief AD HOC NEWS

At the close on September 21, 2026, Bayer stock finished at USD 49.05 on Xetra, up 2.0 percent. The shares traded between USD 48.00 and USD 48.65, while Grünenthal said it will acquire Stivarga for up to 375 million euros.

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Bayer stock closed on September 21, 2026, at USD 49.05 on Xetra, up 2.0 percent from the prior close. Bayer AG (ISIN DE000BAY0017) started near USD 48.00 and finished above its intraday range on the back of a portfolio move.

As Grunenthal said on September 21, 2026, it agreed to buy Bayer's Stivarga for up to 375 million euros, with closing expected by the end of 2026 or early 2027. Reuters-linked market coverage also tied the move to the session's strength.

In the same session, the stock traded between USD 48.00 and USD 48.65 and ended above that band. A Reuters-linked closing report said the shares closed at USD 49.05 and gained 2.0 percent, while the broader U.S. market comparison was not the main driver for the move.

Stivarga sale drives the session

The Stivarga transaction stays the main event for the next trading day, because it was announced on September 21, 2026, and still needs customary closing conditions and regulatory approval. Grünenthal said the deal should close by the end of 2026 or early 2027.

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