Billionaire investor Carl Icahn increased his stakes in Herbalife Nutrition Ltd (NYSE:HLF) and his namesake Icahn Enterprises LP (NASDAQ:IEP) while opening positions in companies such as Cigna (NYSE:CI), AmTrust Financial Services (NASDAQ:AFSI) and Dell Technologies (NYSE:DVMT)among others, a regulatory filing released late on Tuesday showed.

In his 13-F filing, Icahn upped his holdings in Herbalife to 35.22mln shares from 22.87mln in the previous quarter and boosted his holdings in Icahn Enterprises to 11.82mln shares from 9.006mln shares. He also added to his position in Newell Brands Inc (NYSE:NWL) to 33.29mln shares from 30.27mln in the prior quarter.

He opened positions in AmTrust Financial Services Inc (NASDAQ:AFSI) with 18.42mln shares, Cigna with 503,380 shares, Dell Technologies with 2.38mln shares, Energen Corp (NYSE:EGN) with 5.19mln shares and VMWare Inc (NYSE:VMW) with 2.27mln shares.

Icahn reduced his position in Cheniere Energy Inc (NYSE:LNG) to 23.68mln shares from 32.68mln shares.

READ: Carl Icahn says he made US$1 billion on winning Herbalife trade against Ackman

Icahn won a bruising battle over Herbalife against Bill Ackman some five years ago. Ackman had called Herbalife "a well-managed pyramid scheme" and Icahn called his rival "a liar."

All hedge funds or institutions that manage over US$100mln are required by the US Securities and Exchange Commission to file quarterly reports on their holdings which are called 13f reports.

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The filings are of positions the following quarter from the reporting period so that by the time the filing is released, the information could be several months old. The reports though are closely followed because some investors try to mirror their holdings after those taken by iconic investors like Icahn and Warren Buffett. 

Contact Rene Pastor at [email protected]