SEC Form 4 · accession 0001463252-15-000079

· 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 12, 2015

Accepted (ET)

Nov 16, 2015 · 4:21 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 12, 2015	M	200	$32.94	A	56,983	D
COMMON STOCK	Nov 12, 2015	S	200	$51.99	D	56,783	D
COMMON STOCK	Nov 12, 2015	M	200	$32.94	A	56,983	D
COMMON STOCK	Nov 12, 2015	S	200	$51.98	D	56,783	D
COMMON STOCK	Nov 12, 2015	M	100	$32.94	A	56,883	D
COMMON STOCK	Nov 12, 2015	S	100	$51.94	D	56,783	D
COMMON STOCK	Nov 12, 2015	M	100	$32.94	A	56,883	D
COMMON STOCK	Nov 12, 2015	S	100	$51.92	D	56,783	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 12, 2015	M	100	D	Nov 2, 2013	Nov 2, 2019	COMMON STOCK	100	19,900	D
Non-Qualified Stock Option (right to buy)^F1	$32.94	Nov 12, 2015	M	171	D	Nov 2, 2013	Nov 2, 2019	COMMON STOCK	171	19,729	D
Non-Qualified Stock Option (right to buy)^F1	$32.94	Nov 12, 2015	M	100	D	Nov 2, 2013	Nov 2, 2019	COMMON STOCK	100	19,629	D
Non-Qualified Stock Option (right to buy)^F1	$32.94	Nov 12, 2015	M	400	D	Nov 2, 2013	Nov 2, 2019	COMMON STOCK	400	19,229	D
Non-Qualified Stock Option (right to buy)^F1	$32.94	Nov 12, 2015	M	100	D	Nov 2, 2013	Nov 2, 2019	COMMON STOCK	100	19,129	D
Non-Qualified Stock Option (right to buy)^F1	$32.94	Nov 12, 2015	M	257	D	Nov 2, 2013	Nov 2, 2019	COMMON STOCK	257	18,872	D
Non-Qualified Stock Option (right to buy)^F1	$32.94	Nov 12, 2015	M	400	D	Nov 2, 2013	Nov 2, 2019	COMMON STOCK	400	18,472	D
Non-Qualified Stock Option (right to buy)^F1	$32.94	Nov 12, 2015	M	100	D	Nov 2, 2013	Nov 2, 2019	COMMON STOCK	100	18,372	D
Non-Qualified Stock Option (right to buy)^F1	$32.94	Nov 12, 2015	M	100	D	Nov 2, 2013	Nov 2, 2019	COMMON STOCK	100	18,272	D
Non-Qualified Stock Option (right to buy)^F1	$32.94	Nov 12, 2015	M	35	D	Nov 2, 2013	Nov 2, 2019	COMMON STOCK	35	18,237	D
Non-Qualified Stock Option (right to buy)^F1	$32.94	Nov 12, 2015	M	100	D	Nov 2, 2013	Nov 2, 2019	COMMON STOCK	100	18,137	D
Non-Qualified Stock Option (right to buy)^F1	$32.94	Nov 12, 2015	M	400	D	Nov 2, 2013	Nov 2, 2019	COMMON STOCK	400	17,737	D
Non-Qualified Stock Option (right to buy)^F1	$32.94	Nov 12, 2015	M	365	D	Nov 2, 2013	Nov 2, 2019	COMMON STOCK	365	17,372	D
Non-Qualified Stock Option (right to buy)^F1	$32.94	Nov 12, 2015	M	520	D	Nov 2, 2013	Nov 2, 2019	COMMON STOCK	520	16,852	D
Non-Qualified Stock Option (right to buy)^F1	$32.94	Nov 12, 2015	M	100	D	Nov 2, 2013	Nov 2, 2019	COMMON STOCK	100	16,752	D
Non-Qualified Stock Option (right to buy)^F1	$32.94	Nov 12, 2015	M	100	D	Nov 2, 2013	Nov 2, 2019	COMMON STOCK	100	16,652	D
Non-Qualified Stock Option (right to buy)^F1	$32.94	Nov 12, 2015	M	200	D	Nov 2, 2013	Nov 2, 2019	COMMON STOCK	200	16,452	D
Non-Qualified Stock Option (right to buy)^F1	$32.94	Nov 12, 2015	M	200	D	Nov 2, 2013	Nov 2, 2019	COMMON STOCK	200	16,252	D
Non-Qualified Stock Option (right to buy)^F1	$32.94	Nov 12, 2015	M	300	D	Nov 2, 2013	Nov 2, 2019	COMMON STOCK	300	15,952	D
Non-Qualified Stock Option (right to buy)^F1	$32.94	Nov 12, 2015	M	300	D	Nov 2, 2013	Nov 2, 2019	COMMON STOCK	300	15,652	D
Non-Qualified Stock Option (right to buy)^F1	$32.94	Nov 12, 2015	M	500	D	Nov 2, 2013	Nov 2, 2019	COMMON STOCK	500	15,152	D
Non-Qualified Stock Option (right to buy)^F1	$32.94	Nov 12, 2015	M	200	D	Nov 2, 2013	Nov 2, 2019	COMMON STOCK	200	14,952	D
Non-Qualified Stock Option (right to buy)^F1	$32.94	Nov 12, 2015	M	500	D	Nov 2, 2013	Nov 2, 2019	COMMON STOCK	500	14,452	D
Non-Qualified Stock Option (right to buy)^F1	$32.94	Nov 12, 2015	M	100	D	Nov 2, 2013	Nov 2, 2019	COMMON STOCK	100	14,352	D
Non-Qualified Stock Option (right to buy)^F1	$32.94	Nov 12, 2015	M	200	D	Nov 2, 2013	Nov 2, 2019	COMMON STOCK	200	14,152	D
Non-Qualified Stock Option (right to buy)^F1	$32.94	Nov 12, 2015	M	100	D	Nov 2, 2013	Nov 2, 2019	COMMON STOCK	100	14,052	D
Non-Qualified Stock Option (right to buy)^F1	$32.94	Nov 12, 2015	M	100	D	Nov 2, 2013	Nov 2, 2019	COMMON STOCK	100	13,952	D
Non-Qualified Stock Option (right to buy)^F1	$32.94	Nov 12, 2015	M	200	D	Nov 2, 2013	Nov 2, 2019	COMMON STOCK	200	13,752	D
Non-Qualified Stock Option (right to buy)^F1	$32.94	Nov 12, 2015	M	300	D	Nov 2, 2013	Nov 2, 2019	COMMON STOCK	300	13,452	D
Non-Qualified Stock Option (right to buy)^F1	$32.94	Nov 12, 2015	M	208	D	Nov 2, 2013	Nov 2, 2019	COMMON STOCK	208	13,244	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.