Acquisition | IMMUNOGEN INC | 14th February 2024

Initially announced on November 30, 2023 ABBVIE INC made a cash offer for IMMUNOGEN INC of USD 31.26 per IMMUNOGEN INC share held. Shareholders approved the transaction on January 31, 2024. Pending the completion of customary closing conditions, the Acquisition is expected to be completed on February 12, 2024. Trading in shares of IMMUNOGEN INC is expected to be halted effective February 12, 2024.

The treatment below will be applied to the following indices:

• IMMUNOGEN INC will be removed from the Index.
• The weight of IMMUNOGEN INC (IMGN.OQ) based on its last close price will be distributed pro rata to remaining Index constituents.
• Effective Date (open): 14/02/2024

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