X0303 4 2010-02-10 0001011570 KNOLL INC KNL 0001085830 STANIAR BURTON B C/O KNOLL, INC. 1235 WATER STREET EAST GREENVILLE PA 18041 1 1 0 0 Chairman of the Board Common Stock 2010-02-10 4 M 0 27300 10.74 A 152892 D Common Stock 2010-02-10 4 S 0 10000 11.44 D 142892 D Common Stock 2010-02-10 4 S 0 10000 11.42 D 132892 D Common Stock 2010-02-10 4 S 0 5000 11.43 D 127892 D Common Stock 2010-02-10 4 S 0 2300 11.70 D 125592 D Common Stock 2010-02-11 4 M 0 20900 10.74 A 146492 D Common Stock 2010-02-11 4 S 0 1700 11.46 D 144792 D Common Stock 2010-02-11 4 S 0 19200 11.45 D 125592 D Common Stock 2010-02-12 4 M 0 30000 10.74 A 155592 D Common Stock 2010-02-12 4 S 0 9400 11.65 D 146192 D Common Stock 2010-02-12 4 S 0 600 11.66 D 145592 D Common Stock 2010-02-12 4 S 0 9900 11.69 D 135692 D Common Stock 2010-02-12 4 S 0 100 11.70 D 135592 D Common Stock 2010-02-12 4 S 0 10000 11.74 D 125592 D Employee Stock Option (Right to Buy) 10.74 2010-02-10 4 M 0 27300 0 D 2010-03-06 Common Stock 27300 322700 D Employee Stock Option (Right to Buy) 10.74 2010-02-11 4 M 0 20900 0 D 2010-03-06 Common Stock 20900 301800 D Employee Stock Option (Right to Buy) 10.74 2010-02-12 4 M 0 30000 0 D 2010-03-06 Common Stock 30000 271800 D These stock options were a portion of the stock options that vested in 4 annual installments beginning on the first anniversary of March 6, 2000. /s/Michael A. Pollner, Attorney-in-Fact 2010-02-12