X0306 4 2017-08-22 0000009984 BARNES GROUP INC B 0001007661 BARNES THOMAS O BARNES GROUP INC. 123 MAIN STREET BRISTOL CT 06010 1 0 0 0 Common Stock 2017-08-22 5 G 0 250 0 D 342549 D Common Stock 2017-08-30 4 S 0 220 61.22 D 413581 I Trust #42-01-100-8546559 Common Stock 2017-08-30 4 S 0 30 61.22 D 75898 I Trust #42-01-100-8550714 Common Stock 2017-08-30 4 S 0 70 61.22 D 160929 I Trust #42-01-100-8550720 Common Stock 2017-08-30 4 S 0 200 61.22 D 482133 I Trust #42-01-100-8550719 Common Stock 2017-08-30 4 S 0 185 61.22 D 410878 I Trust #42-01-100-8546558 Common Stock 2017-08-30 4 S 0 50 61.22 D 84018 I Trust #42-01-100-8550713 Common Stock 34837.73 I By 401(k) Plan Common Stock 4298.42 I By my wife Common Stock 39221 I Trust #42-01-100-8546568 Common Stock 136165 I Trust #42-01-102-2548261 Common Stock 83664 I Trust#42-01-102-2549053 Includes a balance of 1021 Restricted Stock Units granted 2/7/2017 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. William K. Piotrowski, pursuant to a Power of Attorney 2017-08-31