PATTERSON UTI ENERGY INC

Ticker: PTEN CUSIP: 703481101 Class: Common Stock

CRAMER ROSENTHAL MCGLYNN LLC's Holding History (CIK: 0000820743)

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

Q4 2017

Shares 699,280 Value ($000) $16,090 Avg Close $20.72 Range $17.24 - $23.26

Q3 2017

Shares 732,480 Value ($000) $15,338 Avg Close $18.42 Range $14.83 - $21.74

Q2 2017

Shares 627,310 Value ($000) $12,665 Avg Close $21.79 Range $19.06 - $25.75

Q1 2017

Shares 381,930 Value ($000) $9,269 Avg Close $26.97 Range $22.83 - $29.76

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2017	699,280	$16,090	$20.72	$17.24 - $23.26
Q3 2017	732,480	$15,338	$18.42	$14.83 - $21.74
Q2 2017	627,310	$12,665	$21.79	$19.06 - $25.75
Q1 2017	381,930	$9,269	$26.97	$22.83 - $29.76