Who owns CALL (MSFT) MICROSOFT CORP APR 16 21 $250 (100 SHS)? Institutional holders

CALL (MSFT) MICROSOFT CORP APR 16 21 $250 (100 SHS): summary

No institution's latest stored 13F report lists CALL (MSFT) MICROSOFT CORP APR 16 21 $250 (100 SHS).