Who owns CALL (MSFT) MICROSOFT CORP MAR 18 22 $300 (100 SHS)? Institutional holders

CALL (MSFT) MICROSOFT CORP MAR 18 22 $300 (100 SHS): summary

No institution's latest stored 13F report lists CALL (MSFT) MICROSOFT CORP MAR 18 22 $300 (100 SHS).