  We present new near-ultraviolet (NUV, $\lambda$ = 2479 $-$ 3306 $\r{A}$)
transmission spectroscopy of KELT-9b, the hottest known exoplanet, obtained
with the Colorado Ultraviolet Transit Experiment ($CUTE$) CubeSat. Two transits
were observed on September 28th and September 29th 2022, referred to as Visits
1 and 2 respectively. Using a combined transit and systematics model for each
visit, the best-fit broadband NUV light curves are R$_{\text{p}}$/R$_{\star}$
$=$ 0.136$_{0.0146}^{0.0125}$ for Visit 1 and R$_{\text{p}}$/R$_{\star}$ $=$
0.111$_{0.0190}^{0.0162}$ for Visit 2, appearing an average of 1.54$\times$
larger in the NUV than at optical wavelengths. While the systematics between
the two visits vary considerably, the two broadband NUV light curves are
consistent with each other. A transmission spectrum with 25 $\r{A}$ bins
suggests a general trend of excess absorption in the NUV, consistent with
expectations for ultra-hot Jupiters. Although we see an extended atmosphere in
the NUV, the reduced data lack the sensitivity to probe individual spectral
lines.
