SEC Form 4 · accession 0001463252-15-000085

· PLT

Statement of changes in beneficial ownership, as filed. Original on EDGAR ↗

Reporting owner

Joseph B Burton

Officer — TOP DEVELOPMENT ENGINEERING EX

Period of report

Nov 20, 2015

Accepted (ET)

Nov 23, 2015 · 4:30 pm EST

Rule 10b5-1 plan

unknown — predates the checkbox

Issuer CIK

0000914025

Table I — non-derivative securities

Security	Date	Code	Shares	Price	A/D	Owned after	D/I
COMMON STOCK	Nov 20, 2015	M	100	$32.94	A	54,883	D
COMMON STOCK	Nov 20, 2015	S	100	$52.86	D	54,783	D
COMMON STOCK	Nov 20, 2015	M	100	$32.94	A	54,883	D
COMMON STOCK	Nov 20, 2015	S	100	$52.89	D	54,783	D
COMMON STOCK	Nov 20, 2015	M	100	$32.94	A	54,883	D
COMMON STOCK	Nov 20, 2015	S	100	$52.95	D	54,783	D

Table II — derivative securities

Security	Conv. / exercise price	Date	Code	Shares	A/D	Exercisable	Expires	Underlying	Underlying shares	Owned after	D/I
Non-Qualified Stock Option (right to buy)^F1	$32.94	Nov 20, 2015	M	200	D	Nov 2, 2013	Nov 2, 2019	COMMON STOCK	200	9,800	D
Non-Qualified Stock Option (right to buy)^F1	$32.94	Nov 20, 2015	M	300	D	Nov 2, 2013	Nov 2, 2019	COMMON STOCK	300	9,500	D
Non-Qualified Stock Option (right to buy)^F1	$32.94	Nov 20, 2015	M	100	D	Nov 2, 2013	Nov 2, 2019	COMMON STOCK	100	9,400	D
Non-Qualified Stock Option (right to buy)^F1	$32.94	Nov 20, 2015	M	170	D	Nov 2, 2013	Nov 2, 2019	COMMON STOCK	170	9,230	D
Non-Qualified Stock Option (right to buy)^F1	$32.94	Nov 20, 2015	M	30	D	Nov 2, 2013	Nov 2, 2019	COMMON STOCK	30	9,200	D
Non-Qualified Stock Option (right to buy)^F1	$32.94	Nov 20, 2015	M	100	D	Nov 2, 2013	Nov 2, 2019	COMMON STOCK	100	9,100	D
Non-Qualified Stock Option (right to buy)^F1	$32.94	Nov 20, 2015	M	200	D	Nov 2, 2013	Nov 2, 2019	COMMON STOCK	200	8,900	D
Non-Qualified Stock Option (right to buy)^F1	$32.94	Nov 20, 2015	M	500	D	Nov 2, 2013	Nov 2, 2019	COMMON STOCK	500	8,400	D
Non-Qualified Stock Option (right to buy)^F1	$32.94	Nov 20, 2015	M	290	D	Nov 2, 2013	Nov 2, 2019	COMMON STOCK	290	8,110	D
Non-Qualified Stock Option (right to buy)^F1	$32.94	Nov 20, 2015	M	200	D	Nov 2, 2013	Nov 2, 2019	COMMON STOCK	200	7,910	D
Non-Qualified Stock Option (right to buy)^F1	$32.94	Nov 20, 2015	M	141	D	Nov 2, 2013	Nov 2, 2019	COMMON STOCK	141	7,769	D
Non-Qualified Stock Option (right to buy)^F1	$32.94	Nov 20, 2015	M	200	D	Nov 2, 2013	Nov 2, 2019	COMMON STOCK	200	7,569	D
Non-Qualified Stock Option (right to buy)^F1	$32.94	Nov 20, 2015	M	334	D	Nov 2, 2013	Nov 2, 2019	COMMON STOCK	334	7,235	D
Non-Qualified Stock Option (right to buy)^F1	$32.94	Nov 20, 2015	M	100	D	Nov 2, 2013	Nov 2, 2019	COMMON STOCK	100	7,135	D
Non-Qualified Stock Option (right to buy)^F1	$32.94	Nov 20, 2015	M	200	D	Nov 2, 2013	Nov 2, 2019	COMMON STOCK	200	6,935	D
Non-Qualified Stock Option (right to buy)^F1	$32.94	Nov 20, 2015	M	100	D	Nov 2, 2013	Nov 2, 2019	COMMON STOCK	100	6,835	D
Non-Qualified Stock Option (right to buy)^F1	$32.94	Nov 20, 2015	M	445	D	Nov 2, 2013	Nov 2, 2019	COMMON STOCK	445	6,390	D
Non-Qualified Stock Option (right to buy)^F1	$32.94	Nov 20, 2015	M	200	D	Nov 2, 2013	Nov 2, 2019	COMMON STOCK	200	6,190	D
Non-Qualified Stock Option (right to buy)^F1	$32.94	Nov 20, 2015	M	200	D	Nov 2, 2013	Nov 2, 2019	COMMON STOCK	200	5,990	D
Non-Qualified Stock Option (right to buy)^F1	$32.94	Nov 20, 2015	M	490	D	Nov 2, 2013	Nov 2, 2019	COMMON STOCK	490	5,500	D
Non-Qualified Stock Option (right to buy)^F1	$32.94	Nov 20, 2015	M	200	D	Nov 2, 2013	Nov 2, 2019	COMMON STOCK	200	5,300	D
Non-Qualified Stock Option (right to buy)^F1	$32.94	Nov 20, 2015	M	100	D	Nov 2, 2013	Nov 2, 2019	COMMON STOCK	100	5,200	D
Non-Qualified Stock Option (right to buy)^F1	$32.94	Nov 20, 2015	M	100	D	Nov 2, 2013	Nov 2, 2019	COMMON STOCK	100	5,100	D
Non-Qualified Stock Option (right to buy)^F1	$32.94	Nov 20, 2015	M	100	D	Nov 2, 2013	Nov 2, 2019	COMMON STOCK	100	5,000	D

Explanation of responses

F1Option was granted by the Issuer pursuant to a Rule 16-b plan and becomes exercisable as follows: 33.3% of the shares subject to the option vest 12 months from date of grant; and 1/36th of the shares subject to option vest each month thereafter.