** Shares of office supplies maker MillerKnoll MLKN.O down 3.5% at $17.70 in aftermarket trading

** Co forecasts annual revenue largely below expectations and lowers annual adjusted profit forecast

** Says outlook includes estimated incremental costs related to tariffs expected in Q4

** Co also misses Q3 net sales estimate, while adjusted profit was in line with estimate - data compiled by LSEG

** Says overall demand in its contract business in most geographies was sluggish during the quarter, amid uncertainty related to tariff policy and other macroeconomic factors

** MLKN has fallen 18.81% YTD, as of last close

(Reporting by Neil J Kanatt in Bengaluru)

((Neil.JKanatt@thomsonreuters.com;))