X0303 4 2009-11-16 0000009984 BARNES GROUP INC B 0001196441 O BRIEN LAWRENCE W BARNES GROUP INC. 123 MAIN STREET BRISTOL CT 06011-0489 0 1 0 0 Vice President, Treasurer Common Stock 2009-11-16 4 S 0 8950 17.5442 D 59038 D Common Stock 255.0342 I By Company's Employee Stock Purchase Plan Common Stock 655.051 I By Company's 401(k) Plan The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $17.53 to $17.57, inclusive. The reporting person undertakes to provide to Barnes Group Inc., any security holder of Barnes Group Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in footnote (1) to this Form 4. Includes 1,133 from 2/15/2006 grant, 1,398 from 2/14/2007 grant, 1,700 from 2/13/2008 grant, 3,600 from 2/10/2009 grant and 700 performance share awards from 2/14/2007 grant and 1,133 from 2/13/2008 grant, that are subject for forfeiture if certain events occur. Signe S. Gates, pursuant to a Power of Atty 2009-11-17