X0306 4 2019-08-16 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 2019-08-16 4 S 0 2274 45.4296 D 32812.35 D Common Stock 3.7 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 $45.42 to $45.47, 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 this footnote to this Form 4. Includes balances of 245 Restricted Stock Units granted 2/8/2017, 390 granted 2/8/2018 and 800 granted 2/13/2019, that are subject to forfeiture if certain events occur. Patricia A. Bradley, pursuant to a Power of Attorney 2019-08-19