  We analyze the X-ray properties for a sample of 23 high probability AGN
candidates with ultraviolet variability identified in Wasleske et al. (2022).
Using data from the Chandra X-ray Observatory and the XMM-Newton Observatory,
we find 11/23 nuclei are X-ray detected. We use SED modeling to compute star
formation rates and show that the X-ray luminosities are typically in excess of
the X-ray emission expected from star formation by at least an order of
magnitude. Interestingly, this sample shows a diversity of optical
spectroscopic properties. We explore possible reasons for why some objects lack
optical spectroscopic signatures of black hole activity while still being UV
variable and X-ray bright. We find that host galaxy stellar emission and
obscuration from gas and dust are all potential factors. We study where this
sample falls on relationships such as $\alpha_{\rm OX}-L_{2500}$ and
$L_{X}-L_{IR}$ and find that some of the sample falls outside the typical
scatter for these relations, indicating they differ from the standard quasar
population. With the diversity of optical spectroscopic signatures and varying
impacts of dust and stellar emissions on our sample, these results emphasizes
the strength of variability in selecting the most complete set of AGN,
regardless of other host galaxy properties.
