Behind a pay-wall, but the important part is available for all to read.
The arms were transferred in the past month after the Saudi military sought a new supply to repel drone and missile attacks by Iran-backed Houthi rebels.
www.wsj.com
Here is another report.
The Biden administration has transferred a significant number of Patriot missiles to Saudi Arabia in the past several weeks after the country urgently requested a resupply, The Wall Street Journal …
thehill.com
There, happy?
Also, I know they would more than likely be GEM-T, because the US has not had PAC-2 missiles for about a decade. They have a maximum shelf life of around 20 years, and the last of them were largely used up in a string of missile tests at White Sands in the early 2010's. And this is typical for how the US operates. As they grow close to their "expiration date", they are generally turned over to units for training. Seen better to fire them off in training or tests than to just destroy them.
And yes, they can be sent in and be rebuilt, but why? The PAC-2 is obsolete, replaced by newer and more advanced missiles.
When I deployed in 2009-2010, we only had a handful of the old PAC-2 left, for use against aircraft only. If our launchers were not loaded with PAC-3, it was with a mix of some leftover GEM, and a mix of GEM-T and CEM-C depending on what we thought the threat might be.