According to Cointelegraph, one of the possibilities would be BlackRock. The well-known investment fund showed its interest in cryptocurrencies last year and there is speculation that it would be collecting a large amount of bitcoins.
However, there is no proof that the investment fund is behind this wallet. A move that would not fit with its strategy of betting on crypto through third parties such as Coinbase.
The wallet was particularly active until the end of June. Since then it has remained practically stable at 118,000 BTC.