X0306 4 2016-02-10 0000009984 BARNES GROUP INC B 0001478811 ACKER MARIAN BARNES GROUP INC. 123 MAIN STREET BRISTOL CT 06010 0 1 0 0 VP, Controller Common Stock 2016-02-10 4 A 0 1100 0 A 33730.7082 D Common Stock 3.351 I By Company's Employee Stock Purchase Plan Common Stock 3.716 I By Company's 401(k) Plan Stock Option-Right to Buy 30.71 2016-02-10 4 A 0 3400 A 2026-02-10 Common Stock 3400 3400 D Reporting Person has received 1100 Restricted Stock Units that are subject to forfeiture if certain events occur. Does not include 7600 performance-based performance share awards granted to the Reporting Person which were previously reported on prior Form 4s. These holdings will be reported on subsequent Form 4s if and when the applicable performance goals are achieved. Includes balances of 566 Restricted Stock Units granted 2/12/2013, 666 granted 2/12/2014, 533 granted 2/12/2014 and 1000 granted 2/11/2015, that are subject to forfeiture if certain events occur. The options vest 33.334% on the 18th month and 33.333% on the 30th and 42nd months from the grant date. 1 for 1. Monique B. Marchetti, pursuant to a Power of Attorney 2016-02-12