1. Corporate Officers - M
2. Mcgrath John

Insider Trading History of Mcgrath John

The following table details the insider trading activities (stock purchases, stock sales, and stock option exercises) by Mcgrath John since 2007. The trader's CIK number is 1205442. At the time of the last reporting, Mcgrath John was the EXC.112.VP CFO of Atara Biotherapeutics, Inc.. (stock ticker symbol ATRA). Also see all insider trading activities at Atara Biotherapeutics, Inc..

Note that in the past MCGRATH JOHN also reported insider trading activities as an insider of the following companies:

Yearly summary of insider trading at Network Equipment Technologies Inc (NWK) by Mcgrath John

		Insider Buying		Insider Sales		Option Exercises
Year	Symbol	Shares	Value	Shares	Value	Shares	Value
2007	NWK	0	$0	50,000	$559,487	50,000	$150,000

Yearly summary of insider trading at Atara Biotherapeutics, Inc. (ATRA) by Mcgrath John

		Insider Buying		Insider Sales		Option Exercises
Year	Symbol	Shares	Value	Shares	Value	Shares	Value
2018	ATRA	0	$0	88,000	$2,360,552	35,132	$330,000
2017	ATRA	0	$0	55,200	$1,025,847	34,528	$0
2016	ATRA	0	$0	21,395	$364,519	42,008	$0
2015	ATRA	0	$0	32,000	$1,436,280	86,361	$0

Insider trading activities at 2 companies by Mcgrath John:

1. Network Equipment Technologies Inc (NWK)

2. Atara Biotherapeutics, Inc. (ATRA)

Table 1. Insider trading of Network Equipment Technologies Inc (NWK) by Mcgrath John

Trade Date	Symbol	Trade Type	Shares	Price ($)	Value ($)
2007-11-12	NWK	Option Ex	25,000	3.00	75,000
2007-11-12	NWK	Sale	25,000	12.31	307,700
2007-08-17	NWK	Sale	6,718	10.25	68,859
2007-08-16	NWK	Sale	14,000	10.01	140,070
2007-08-17	NWK	Option Ex	6,718	3.00	20,154
2007-08-16	NWK	Option Ex	14,000	3.00	42,000
2007-08-15	NWK	Sale	4,282	10.01	42,858
2007-08-15	NWK	Option Ex	4,282	3.00	12,846

Table 2. Insider trading of Atara Biotherapeutics, Inc. (ATRA) by Mcgrath John

Trade Date	Symbol	Trade Type	Shares	Price ($)	Value ($)
2018-03-20	ATRA	Sale	3,000	38.83	116,490
2018-03-19	ATRA	Sale	3,000	41.99	125,970
2018-02-15	ATRA	Option Ex	5,132	.00	0
2018-02-15	ATRA	Sale	6,500	46.77	304,005
2018-02-16	ATRA	Sale	6,500	47.51	308,782
2018-01-11	ATRA	Sale	3,500	20.77	72,695
2018-01-12	ATRA	Sale	33,500	23.66	792,610
2018-01-12	ATRA	Option Ex	30,000	11.00	330,000
2017-12-29	ATRA	Sale	32,000	20.00	640,000
2017-11-15	ATRA	Option Ex	7,697	.00	0
2017-08-15	ATRA	Option Ex	7,697	.00	0
2017-08-16	ATRA	Sale	2,100	14.39	30,219
2017-08-15	ATRA	Sale	2,100	14.23	29,883
2017-05-15	ATRA	Option Ex	8,633	.00	0
2017-05-15	ATRA	Sale	2,000	14.95	29,900
2017-05-16	ATRA	Sale	2,000	15.27	30,540
2017-03-22	ATRA	Sale	7,500	20.27	152,025
2017-03-23	ATRA	Sale	6,500	21.08	137,020
2017-03-10	ATRA	Sale	24,000	20.00	480,000
2017-02-21	ATRA	Sale	9,000	15.14	136,260
2017-02-15	ATRA	Option Ex	10,501	.00	0
2016-11-15	ATRA	Option Ex	10,503	.00	0
2016-11-10	ATRA	Sale	2,500	20.30	50,750
2016-11-11	ATRA	Sale	2,500	19.37	48,425
2016-10-11	ATRA	Sale	2,500	18.52	46,300
2016-10-12	ATRA	Sale	2,500	16.41	41,025
2016-08-15	ATRA	Option Ex	10,501	.00	0
2016-05-16	ATRA	Option Ex	10,503	.00	0
2016-05-16	ATRA	Sale	5,395	15.77	85,079
2016-02-16	ATRA	Option Ex	10,501	.00	0
2016-02-16	ATRA	Sale	6,000	15.49	92,940
2015-11-30	ATRA	Sale	6,000	40.00	240,000
2015-11-16	ATRA	Option Ex	10,502	.00	0
2015-08-17	ATRA	Option Ex	10,502	.00	0
2015-08-18	ATRA	Sale	6,000	49.38	296,280
2015-06-15	ATRA	Sale	10,000	50.00	500,000
2015-05-29	ATRA	Sale	10,000	40.00	400,000
2015-05-15	ATRA	Option Ex	65,357	.00	0

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 Mcgrath John (EXC.112.VP CFO of Atara Biotherapeutics, Inc. at the time of this reporting) see the Securities and Exchange Commission (SEC) website.

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