The General Organisation for Social Insurance (GOSI), Saudi Arabia's largest pension fund, has raised stakes in six listed firms, including Saudi Telecom and Savola Group, official data showed on Monday.

The state-owned Gosi increased its stake in state-controlled Saudi Telecom on Sunday to 7 percent from 6.9 percent, according to the data published on the stock exchange's website.

Other increases involved: Maaden at 6.3 percent from 5.9 percent, Savola at 9.8 percent from 9.6 percent, Saudi Fertilizers Company at 14.2 percent from 14 percent and  Southern Province Cement at 13.1 per cent from 13 per cent.

The data also showed that Gosi now holds a 5 per cent stake in property developer Jabal Omar Development Company. It was not immediately clear if Gosi had any shares at all in Jabal Omar before Sunday's transaction since 5 percent is the minimum percentage liable for public disclosure in Saudi Arabia.

The data does not show the price Gosi paid for the stocks. Based on Sunday's closing stock prices, and excluding the Jabal Omar deal, the value of the stake increases in the five firms was SR252.5 million ($67.3 million), according to Reuters' calculations.

The stake increases by Gosi followed the publication of second quarter earnings.-Reuters