X0304 4 2011-11-04 0 0001050915 QUANTA SERVICES INC PWR 0001079430 COLSON JOHN R 2800 POST OAK BLVD., SUITE 2600 HOUSTON TX 77056-6175 1 1 0 0 Exec Chairman of the Board Common Stock 2011-11-04 4 S 0 500 21.82 D 1410965 D Common Stock 2011-11-04 4 S 0 100 21.825 D 1410865 D Common Stock 2011-11-04 4 S 0 1400 21.83 D 1409465 D Common Stock 2011-11-04 4 S 0 1300 21.835 D 1408165 D Common Stock 2011-11-04 4 S 0 5798 21.84 D 1402367 D Common Stock 2011-11-04 4 S 0 900 21.845 D 1401467 D Common Stock 2011-11-04 4 S 0 13909 21.85 D 1387558 D Common Stock 2011-11-04 4 S 0 1800 21.855 D 1385758 D Common Stock 2011-11-04 4 S 0 17868 21.86 D 1367890 D Common Stock 2011-11-04 4 S 0 4570 21.865 D 1363320 D Common Stock 2011-11-04 4 S 0 5395 21.87 D 1357925 D Common Stock 2011-11-04 4 S 0 1616 21.88 D 1356309 D Common Stock 2011-11-04 4 S 0 2244 21.89 D 1354065 D Common Stock 2011-11-04 4 S 0 1100 21.90 D 1352965 D Common Stock 2011-11-04 4 S 0 1500 21.91 D 1351465 D /s/ Carolyn M. Campbell, Attorney-in-Fact 2011-11-04