Lombard Odier Asset Management (USA) Corp

Holdings History for PATTERSON UTI ENERGY INC - Common Stock, $0.01 Par Value (PTEN)

Symbol: PTEN on Nasdaq
Investment type: Equity / Common Stock, $0.01 Par Value

Shares, Excluding Options vs Price

Value, Excluding Options

Holdings date	Weight	Change	Value $	Shares	Change	Activity %	Price	All Holders
31 Mar 2019		-1.2%	$0	0	-800,000	-100%	$8.14	Q1 2019
31 Dec 2018	1.2%	+1.2%	$8,280,000	800,000	+800,000	NEW	$10.35	Q4 2018
31 Dec 2014		-0.67%	$0	0	-200,000	-100%	$8.14	Q4 2014
30 Sep 2014	0.67%	+0.67%	$6,506,000	200,000	+200,000	NEW	$32.53	Q3 2014

* Reported Price is the price of the security as of the portfolio date. This value is significant in that it is the last known price at which the security was still held.
An asterisk sign (*) next to the price indicates that the price is likely invalid.