1. Company Directors - M
2. Mckenna David M

Insider Trading History of Mckenna David M

The following table details the insider trading activities (stock purchases, stock sales, and stock option exercises) by Mckenna David M since 2007. The trader's CIK number is 1375924. At the time of the last reporting, Mckenna David M was the Director of Ncs Multistage Holdings, Inc.. (stock ticker symbol NCSM). Also see all insider trading activities at Ncs Multistage Holdings, Inc..

Note that in the past McKenna David M also reported insider trading activities as an insider of the following companies:

Yearly summary of insider trading at Aspen Technology Inc /de/ (AZPN) by Mckenna David M

		Insider Buying		Insider Sales		Option Exercises
Year	Symbol	Shares	Value	Shares	Value	Shares	Value
2010	AZPN	0	$0	1,601	$13,718	0	$0
2007	AZPN	0	$0	181	$2,334	0	$0

Yearly summary of insider trading at Ncs Multistage Holdings, Inc. (NCSM) by Mckenna David M

		Insider Buying		Insider Sales		Option Exercises
Year	Symbol	Shares	Value	Shares	Value	Shares	Value
2017	NCSM	0	$0	1,375,000	$21,914,750	0	$0

Insider trading activities at 2 companies by Mckenna David M:

1. Aspen Technology Inc /de/ (AZPN)

2. Ncs Multistage Holdings, Inc. (NCSM)

Table 1. Insider trading of Aspen Technology Inc /de/ (AZPN) by Mckenna David M

Trade Date	Symbol	Trade Type	Shares	Price ($)	Value ($)
2010-09-28	AZPN	Sale	1,601	8.57	13,718
2007-04-04	AZPN	Sale	14	13.09	183
2007-04-05	AZPN	Sale	11	12.99	142
2007-03-30	AZPN	Sale	34	13.10	445
2007-04-02	AZPN	Sale	5	12.74	63
2007-04-03	AZPN	Sale	10	12.98	129
2007-03-29	AZPN	Sale	7	13.03	91
2007-03-27	AZPN	Sale	15	13.02	195
2007-03-28	AZPN	Sale	10	12.99	129
2007-03-22	AZPN	Sale	6	12.79	76
2007-03-23	AZPN	Sale	10	12.99	129
2007-03-26	AZPN	Sale	11	12.96	142
2007-03-22	AZPN	Sale	6	12.79	76
2007-03-23	AZPN	Sale	10	12.99	129
2007-03-26	AZPN	Sale	11	12.96	142
2007-03-19	AZPN	Sale	5	12.36	61
2007-03-20	AZPN	Sale	8	12.68	101
2007-03-21	AZPN	Sale	8	12.72	101

Table 2. Insider trading of Ncs Multistage Holdings, Inc. (NCSM) by Mckenna David M

Trade Date	Symbol	Trade Type	Shares	Price ($)	Value ($)
2017-05-03	NCSM	Sale	1,375,000	15.94	21,914,750

Insider trading activities including stock purchases, stock sales, and option exercises listed in the above table cannot be completely guaranteed as to their accuracy. For more information regarding the trades made by Mckenna David M (Director of Ncs Multistage Holdings, Inc. at the time of this reporting) see the Securities and Exchange Commission (SEC) website.

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