X0303 4 2010-08-23 0000009984 BARNES GROUP INC B 0001007661 BARNES THOMAS O BARNES GROUP INC. 123 MAIN STREET BRISTOL CT 06011-0489 1 0 0 0 Common Stock 2010-08-23 4 S 0 6000 15.3947 D 198935.2076 D Common Stock 29333.033 I By 401(k) Plan Common Stock 3906.1166 I By my wife Common Stock 39356 I Trust #42-01-100-8546568 Common Stock 418768 I Trust #42-01-100-8546559 Common Stock 76470 I Trust #42-01-100-8550714 Common Stock 161652 I Trust #42-01-100-8550720 Common Stock 487540 I Trust #42-01-100-8550719 Common Stock 414756 I Trust #42-01-100-8546558 Common Stock 84432 I Trust #42-01-100-8550713 Common Stock 300196 I Trust #CF-2078 Common Stock 177409 I Trust #CF2363 Common Stock 888352 I Trust #CF5046 Common Stock 428136 I Trust #CF5048 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $15.3801 to $15.44, 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 a balance of 2947 Restricted Stock Units granted 2/10/09 and 4913 granted 2/8/10 that are subject to forfeiture if certain events occur. Reporting Person hereby disclaims beneficial ownership of shares held by his Wife, and the Trusts except to the extent of his pecuniary interest. Jill E. Ferguson, pursuant to Power of Attorney 2010-08-24