The stakes disclosed in the so-called 13-F quarterly filing are as of Sept. 30. The filings are one of the few ways that funds are required to disclose their long positions, but may not reflect current holdings.

The filings are closely watched for possible investment trends and potential future performance.

Elliott had disclosed a stake in Pinterest in August, citing "significant potential for growth".

Rival investment firm Tiger Global Management also added to its stakes in several tech firms in the third quarter, including tech giant Microsoft Corp, and Jack Dorsey's payments firm Block Inc.

(Reporting by Manya Saini in Bengaluru; Editing by Shailesh Kuber)