TEL AVIV, July 13 (Reuters) - Israeli holding company Koor Industries (KOR.TA: Quote, Profile, Research) said on Sunday it has accumulated 8.97 million shares of Credit Suisse Group (CSGN.VX: Quote, Profile, Research) for 1.28 billion shekels ($378 million).

The shares are equal to a 0.89 percent stake in Credit Suisse, Koor said in a statement to the Tel Aviv Stock Exchange.

Earlier this month Koor said it had bought Credit Suisse shares worth 100 million Swiss francs.

Koor said it might acquire more shares from time to time up to a maximum of 1.5 billion shekels as well as sell shares in accordance with market developments.

In April, Koor said it would invest up to 1.5 billion shekels in Credit Suisse and Barclays Bank (BARC.L: Quote, Profile, Research).

Koor has bought some shares in Barclays, but not in significant amounts.

Goldman Sachs (GS.N: Quote, Profile, Research) has approved a credit framework to enable Koor to make the purchases.

Koor is 49.5 percent held by Discount Investment Corp (DISI.TA: Quote, Profile, Research), a subsidiary of conglomerate IDB Development IDBD.TA. IDB also holds another 10 percent of Koor. ($1 = 3.385 shekels) (Reporting by Tova Cohen; Editing by Quentin Bryar)