QUANTA SVCS INC

Ticker: PWR CUSIP: 74762E102 Class: Common Stock

DUDLEY & SHANLEY, INC.'s Holding History (CIK: 0000883511)

Note: Option positions (PUT/CALL) are excluded.

Q3 2015

Shares 603,350 Value ($000) $14,607 Avg Close $24.98 Range $20.94 - $28.54

Q2 2015

Shares 868,400 Value ($000) $25,027 Avg Close $28.68 Range $27.15 - $30.03

Q1 2015

Shares 866,550 Value ($000) $24,723 Avg Close $27.51 Range $25.18 - $29.37

Q4 2014

Shares 726,025 Value ($000) $20,612 Avg Close $30.81 Range $24.86 - $35.65

Q3 2014

Shares 734,925 Value ($000) $26,670 Avg Close $34.89 Range $32.23 - $36.77

Q2 2014

Shares 743,325 Value ($000) $25,704 Avg Close $33.95 Range $31.88 - $36.70

Q1 2014

Shares 741,925 Value ($000) $27,377 Avg Close $32.74 Range $29.28 - $36.57

Q4 2013

Shares 741,250 Value ($000) $23,394 Avg Close $28.83 Range $26.21 - $31.00

Q3 2013

Shares 632,550 Value ($000) $17,401 Avg Close $26.53 Range $25.08 - $28.57

Q2 2013

Shares 616,000 Value ($000) $16,299 Avg Close $27.23 Range $24.78 - $29.98

Period	Shares	Value ($000)	Average Close	Price Range
Q3 2015	603,350	$14,607	$24.98	$20.94 - $28.54
Q2 2015	868,400	$25,027	$28.68	$27.15 - $30.03
Q1 2015	866,550	$24,723	$27.51	$25.18 - $29.37
Q4 2014	726,025	$20,612	$30.81	$24.86 - $35.65
Q3 2014	734,925	$26,670	$34.89	$32.23 - $36.77
Q2 2014	743,325	$25,704	$33.95	$31.88 - $36.70
Q1 2014	741,925	$27,377	$32.74	$29.28 - $36.57
Q4 2013	741,250	$23,394	$28.83	$26.21 - $31.00
Q3 2013	632,550	$17,401	$26.53	$25.08 - $28.57
Q2 2013	616,000	$16,299	$27.23	$24.78 - $29.98