X0306 4 2018-02-23 0000009984 BARNES GROUP INC B 0001007661 BARNES THOMAS O BARNES GROUP INC. 123 MAIN STREET BRISTOL CT 06010 1 0 0 0 Common Stock 2018-02-23 4 S 0 550 63.36 D 413031 I Trust #42-01-100-8546559 Common Stock 2018-02-23 4 S 0 90 63.36 D 75808 I Trust #42-01-100-8550714 Common Stock 2018-02-23 4 S 0 90 63.36 D 160839 I Trust #42-01-100-8550720 Common Stock 2018-02-23 4 S 0 425 63.36 D 481708 I Trust #42-01-100-8550719 Common Stock 2018-02-23 4 S 0 410 63.36 D 410468 I Trust #42-01-100-8546558 Common Stock 2018-02-23 4 S 0 30 63.36 D 83988 I Trust #42-01-100-8550713 Common Stock 2018-02-23 4 S 0 105 63.36 D 39116 I Trust #42-01-100-8546568 Common Stock 77162 I Trust #42-01-102-2549053 Common Stock 72626 I Trust #42-01-102-2548261 Common Stock 4317.09 I By my wife Common Stock 346940.52 D Common Stock 34819.5 I By 401(k) Plan Reporting Person hereby disclaims beneficial ownership of shares held by his Wife, and the Trusts except to the extent of his pecuniary interest. Includes a balance of 1771 Restricted Stock Units that are subject to forfeiture if certain events occur. William Piotrowski, pursuant to a Power of Attorney 2018-02-26