X0306 4 2017-05-10 0000883945 USA TRUCK INC USAK 0001197331 PEISER ROBERT A 3200 INDUSTRIAL PARK ROAD VAN BUREN AR 72956 1 Common Stock 2017-05-10 4 P 0 10000 6.39 A 67785 I By Trust The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $6.36 to $6.48, inclusive. The reporting person undertakes to provide to USA Truck, Inc., any security holder of USA Truck, Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the range set forth above. The reporting person previously reported 30,513 shares as being held directly. Since the reporting person's last Form 4 filing, the reporting person transferred these directly held shares to trust and they are now reported as held indirectly by trust. The reporting person disclaims ownership of the shares to the extent that the number of shares exceeds his pecuniary interest in the shares. /s/ Zachary B. King, attorney-in-fact pursuant to POA filed herewith 2017-05-12