LONDON--GlaxoSmithKline PLC (GSK.LN) said Thursday it plans to sell about half of its 12.4% stake in South Africa's Aspen Pharmacare Holdings Ltd. (APN.JO) through a placing to investors.

The sale would earn Glaxo about 11.5 billion rand ($1 billion) based on Aspen's current market valuation.

Glaxo's Chief Executive Simon Dingemans said selling the shares in Aspen will give it more financial flexibility following a recent deal with Switzerland's Novartis AG (NVS) that involved selling businesses to each other and setting up a joint venture.

Glaxo took a stake of about 19% in Aspen in 2009 as part of a strategic relationship that included the two companies combining some commercial activities in Sub-Saharan Africa.

In November 2013 Glaxo sold 6.2% of Aspen to investors for ZAR7.1 billion, cutting its stake to the current 12.4%.

"We continue to believe in the strategy of Aspen and we remain committed to working together in the future," he added.

Write to Rory Gallivan at rory.gallivan@wsj.com; Twitter: @RoryGallivan

Subscribe to WSJ: http://online.wsj.com?mod=djnwires

Novartis (NYSE:NVS)
Historical Stock Chart
From Mar 2024 to Apr 2024 Click Here for more Novartis Charts.
Novartis (NYSE:NVS)
Historical Stock Chart
From Apr 2023 to Apr 2024 Click Here for more Novartis Charts.