During the first three observing runs of LIGO/Virgo/KAGRA Collaboration a total of 90 candidate
gravitational wave events from the mergers of black hole and neutron stars have been detected. Since
then, the O4a run took place and the O4b run is presently ongoing, contributing with the detection
of additional mergers. During the runs, all disseminated gravitational events have been the target
of multi-messenger follow-up observations, and at the same time, there has been searches of
gravitational wave emission from electromagnetic events. The present paper reviews the results
of LIGO-Virgo runs with a focus on the runs in the public alert era.