Press release

Stockholm, May 5, 2021

Investor AB executes share split and decides on record date

The Annual General Meeting of Investor AB resolved earlier today on a share split whereupon each share, regardless of series, is divided into four shares of the same series. The Board has now decided that the record date for the share split will be May 20, 2021.

Last day of trading in Investor AB’s shares prior to the share split is May 18, 2021. First day of trading in Investor AB’s shares post the share split is May 19, 2021. As a consequence of the share split, Investor AB’s shares will be traded under new ISIN codes as of May 19, 2021. The new ISIN code for the A share is SE0015811955 and the new ISIN code for the B share is SE0015811963.

The share split will be automatically implemented via Euroclear AB and no actions are required by the shareholders. The new number of shares is expected to be registered on the securities account (Sw. VP-konto) of each shareholder by May 21, 2021.

After the share split the total number of shares in Investor AB will amount to 3,068,700,120, whereof 1,246,763,376 A shares and 1,821,936,744 B shares.

For further information: Viveka Hirdman-Ryrberg, Head of Corporate Communication and Sustainability Phone +46 705 50 35 00 [email protected]

Magnus Dalhammar, Head of Investor Relations Phone +46 735 24 21 30 [email protected]

1(2) This is information that Investor AB is obliged to make public pursuant to the Swedish Securities Markets Act. The information was submitted for publication, through the agency of the contact persons set out above, at 16:00 CEST on May 5, 2021.

Our press releases can be accessed at www.investorab.com.

Investor, founded by the in 1916, is an engaged owner of high-quality, global companies. We have a long-term investment perspective. Through board participation, as well as industrial experience, our network and financial strength, we work continuously to support our companies to remain or become best-in-class. Our holdings include among others ABB, , , Mölnlycke and SEB.

Investor AB (publ) Arsenalsgatan 8C SE-103 32 , Sweden +46 8 614 20 00 Reg.no 556013-8298 www.investorab.com

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