This is when the whale is sending the tokens back in increments. so there would be no value other than the tokens being sent, the payments back to the whale would have to be in separate transactions

Payment of 1128.02 ETH for 148,314,000 DGTX was split into 5 transactions:
1st transfer of 226 ETH from Digitex to whale:https://etherscan.io/tx/0x73472208c3...405f286677b067
1st transfer of 29M DGTX tokens from whale to Digitex:https://etherscan.io/tx/0xff85aeaca5...e79d2eb215a1ac
2nd transfer of 226 ETH from Digitex to whale:https://etherscan.io/tx/0x0b563d07e1...3cdd01df043bac
2nd transfer of 29M DGTX from whale to Digitex:https://etherscan.io/tx/0x76cda20106...cea6617c81fb05
3rd transfer of 226 ETH from Digitex to whale:https://etherscan.io/tx/0x02101dd5c9...db14ad88d1745f
3rd transfer of 29M DGTX from whale to Digitex:https://etherscan.io/tx/0x21e22ee4b6...c63329977aff2d
4th transfer of 226 ETH from Digitex to whale:https://etherscan.io/tx/0x9ad35ec4a0...5a4aee1449fee4
4th transfer of 29M DGTX from whale to Digitex:https://etherscan.io/tx/0x6797466ac7...19cec7f1fef643
5th transfer of 222.02 ETH from Digitex to whale:https://etherscan.io/tx/0xc61231bd1b...74d6a76f58fcc2
5th transfer of 29M DGTX from whale to Digitex:https://etherscan.io/tx/0x7e6dfaddc2...0ff02e0e5f4d29

As you can see the eth payments go into another wallet(which wouldn't be that uncommon tbh, people generally have multiple wallets or would do at the values of funds he/she is moving). The wallet the eth is sent to dates back around 227 days and has a huge amount of funds moving around in general