X0303 4 2011-02-14 0001011570 KNOLL INC KNL 0001310413 Graves Arthur C C/O KNOLL, INC. 1235 WATER STREET EAST GREENVILLE PA 18041 0 1 0 0 Exec.V.P.-Sales & Distribution Common Stock 2011-02-15 4 S 0 1686 20.84 D 110586 D Common Stock 2011-02-15 4 S 0 3000 20.85 D 107586 D Common Stock 2011-02-15 4 S 0 200 20.86 D 107386 D Common Stock 2011-02-16 4 M 0 25562 16.34 A 132948 D Common Stock 2011-02-16 4 S 0 4632 20.70 D 128316 D Common Stock 2011-02-16 4 S 0 500 20.71 D 127816 D Common Stock 2011-02-16 4 S 0 358 20.72 D 127458 D Common Stock 2011-02-16 4 S 0 110 20.73 D 127348 D Common Stock 2011-02-16 4 S 0 1100 20.74 D 126248 D Common Stock 2011-02-16 4 S 0 3662 20.75 D 122586 D Common Stock 2011-02-16 4 S 0 5600 20.76 D 116986 D Common Stock 2011-02-16 4 S 0 2400 20.77 D 114586 D Common Stock 2011-02-16 4 S 0 2455 20.78 D 112131 D Common Stock 2011-02-16 4 S 0 2045 20.79 D 110086 D Common Stock 2011-02-16 4 S 0 400 20.80 D 109686 D Common Stock 2011-02-16 4 S 0 805 20.81 D 108881 D Common Stock 2011-02-16 4 S 0 600 20.82 D 108281 D Common Stock 2011-02-16 4 S 0 895 20.84 D 107386 D 2 of 2 Forms 4 /s/Michael A. Pollner, Attorney-in-Fact 2011-02-16