X0305 4 2012-05-21 0 0000030822 DYNAMICS RESEARCH CORP DRCO 0001218622 REGAN JAMES 19 WEQUASSET RD HARWICH PORT MA 02646 0 1 0 0 Chairman & CEO Common Stock 2012-05-21 4 P 0 100 6.28 A 369728 D Common Stock 2012-05-21 4 P 0 300 6.30 A 370028 D Common Stock 2012-05-21 4 P 0 800 6.310 A 370828 D Common Stock 2012-05-21 4 P 0 300 6.320 A 371128 D Common Stock 2012-05-21 4 P 0 100 6.326 A 371228 D Common Stock 2012-05-21 4 P 0 300 6.330 A 371528 D Common Stock 2012-05-21 4 P 0 495 6.340 A 372023 D Common Stock 2012-05-21 4 P 0 595 6.350 A 372618 D Common Stock 2012-05-21 4 P 0 500 6.360 A 373118 D Common Stock 2012-05-21 4 P 0 110 6.370 A 373228 D Common Stock 2012-05-21 4 P 0 100 6.376 A 373328 D Common Stock 2012-05-21 4 P 0 500 6.380 A 373828 D Common Stock 2012-05-21 4 P 0 200 6.390 A 374028 D Common Stock 2012-05-21 4 P 0 100 6.410 A 374128 D Common Stock 2012-05-21 4 P 0 100 6.420 A 374228 D Common Stock 2012-05-21 4 P 0 600 6.430 A 374828.00 D Common Stock 2012-05-21 4 P 0 300 6.440 A 375128.00 D Common Stock 2012-05-21 4 P 0 100 6.455 A 375228.00 D Common Stock 2012-05-21 4 P 0 100 6.470 A 375328.00 D Common Stock 2012-05-21 4 P 0 100 6.490 A 375428.00 D Common Stock 2012-05-21 4 P 0 100 6.496 A 375528.00 D Common Stock 2012-05-21 4 P 0 700 6.500 A 376228.00 D This trade originated outside of Fidelity Stock Plan Services. It originated through a Fidelity Retail channel. Richard A. Covel 2012-05-22