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We present the results of our analysis of KIC 4150611 (HD 181469) - aninteresting, bright quintuple system that includes a hybrid $\delta$Sct/$\gamma$ Dor pulsator. Four periods of eclipses - 94.2, 8.65, 1.52 and 1.43d - have been observed by the Kepler satellite, and three point sources (A, B,and C) are seen in high angular resolution images.  From spectroscopic observations made with the HIDES spectrograph attached tothe 1.88-m telescope of the Okayama Astrophysical Observatory (OAO), for thefirst time we calculated radial velocities (RVs) of the component B - a pair ofG-type stars - and combined them with Kepler photometry in order to obtainabsolute physical parameters of this pair. We also managed to directly measureRVs of the pulsator, also for the first time. Additionally, we modelled thelight curves of the 1.52 and 1.43-day pairs, and measured their eclipse timingvariations (ETVs). We also performed relative astrometry and photometry ofthree sources seen on the images taken with the NIRC2 camera of the Keck IItelescope. Finally, we compared our results with theoretical isochrones.  The brightest component Aa is the hybrid pulsator, transited every 94.2 daysby a pair of K/M-type stars (Ab1+Ab2), which themselves form a 1.52-dayeclipsing binary. The components Ba and Bb are late G-type stars, forminganother eclipsing pair with a 8.65 day period. Their masses and radii are$M_{Ba}=0.894\pm0.010$ M$_\odot$, $R_{Ba}=0.802\pm0.044$ R$_\odot$ for theprimary, and $M_{Bb}=0.888\pm0.010$ M$_\odot$, $R_{Bb}=0.856\pm0.038$ R$_\odot$for the secondary. The remaining period of 1.43 days is possibly related to afaint third star C, which itself is most likely a background object. Thesystem's properties are well-represented by a 35 Myr isochrone. There are alsohints of additional bodies in the system.

KIC 4150611: a rare multi-eclipsing quintuple with a hybrid pulsator