It is kind of odd for such kind of wallet to have that kind of bitcoin held on a single wallet, let's assume that it is an exchange wallet which in this case is assumed to belong to coinbase but most exchange cold wallets are always multi-sig wallet for security reasons but this is an old wallet legacy address.
If you look at the transaction with this wallet address 1LQoWist8KkaUXSPKZHNvEyfrEkPHzSsCd
I'm a bit sceptical about why will MicroStrategy send bitcoin to coinbase wallet, if they are doing an OTC transaction, it should be that it is the exchange wallet that should be sending bitcoin to the MicroStrategy wallet. Also, the assumed coinbase wallet just had only incoming transactions and not a single outgoing transaction which leaves me with the question that where will they have bitcoin to settle some institutional investors who subsequently withdraw or even trade bitcoin if that wallet belong to coinbase.




More detailed interaction between MicroStrategy, other wallets and 1LQoWist8KkaUXSPKZHNvEyfrEkPHzSsCd, you can see that coinbase wallets are also sending bitcoin to Microstrategy and then later sent to the legacy wallet address.