According to a Schedule 13G filing with the U.S. Securities and Exchange Commission (SEC), two affiliated independent broker-dealers—G1 Execution Services, LLC and Susquehanna Securities, LLC—disclosed that as of June 30, 2025, they collectively held a 5.3% stake in UP Fintech Holding Limited (Tiger Brokers).

The document, signed on August 13, 2025, indicates that these two entities may be considered a group. They reported a total holding of 142,856,205 shares of Tiger Brokers' Class A common stock.

Detailed shareholding is as follows:

• Susquehanna Securities, LLC: Reported having sole voting power and sole dispositive power over 142,850,250 shares, and shared voting and dispositive power over a total of 142,856,205 shares with other reporting parties.

• G1 Execution Services, LLC: Reported having sole voting power and sole dispositive power over 5,955 shares, and shared voting and dispositive power over a total of 142,856,205 shares with other reporting parties.