The US handed over the first HIMARS to Ukraine back in June.

Western experts have not found evidence of cases of interception by Russian invaders of HIMARS shells , with which the Armed Forces of Ukraine “carry out” the warehouses and bases of the enemy.
This is stated in the report of the Institute for the Study of War ( ISW ).
The day before, the invaders claimed that the Armed Forces of Ukraine fired four HIMARS missiles at Kherson, and that all of them were allegedly intercepted by Russian air defense.
However, as analysts specify, there was no confirmation of the interception, just as there was no confirmation of the operation of Russian air defenses at all.
“There is no open source evidence that Russian forces have ever intercepted HIMARS munitions,” the Institute’s report notes.
(C)UNIAN 2022

https://eurasiantimes.com/44-himars-russia-faces-online-mockery-for-destroy-us-mlrs/?amp
Why can’t Russia destroy Ukraine’s US-made HIMARS rocket launchers?
One Russian defense blog offered an explanation: The artillery rocket system has a secret feature that prevents Russian artillery from targeting it.
Not quite, Western defense experts say. The more likely reason is Russian incompetence.
https://www.businessinsider.com/russia-making-excuses-for-not-stopping-us-himars-in-ukraine-2022-10
AFU making fools out of ruscists doing a shell game with HIMARS. We’re over here watch the marble swish swish swish swish swish swish, where did we go bwwwwhaaahaahaahaa! HIMARS can change up directions as well which really give schizoruscists migraines.
Ha,ha,ha!
I just hope the wheeled HIMARS are able to get around on soggy ground.