1. Corporate Officers - T
2. Thomson Mary Christina

Insider Trading History of Thomson Mary Christina

The following table details the insider trading activities (stock purchases, stock sales, and stock option exercises) of Thomson Mary Christina since 2007. This trader's CIK number is 1295674. At the time of last reporting, Thomson Mary Christina was the General Counsel, CCO & Sec'y of Sierra Oncology, Inc.. (stock ticker symbol SRRA). Also see all insider trading activities at Sierra Oncology, Inc..

Note that in the past Thomson Mary Christina also reported insider trading activities as an insider of the following companies:

Yearly summary of insider trading at Sierra Oncology, Inc. (SRRA) by Thomson Mary Christina

		Insider Buying		Insider Sales		Option Exercises
Year	Symbol	Shares	Value	Shares	Value	Shares	Value
2022	SRRA	0	$0	8,000	$249,032	8,000	$104,320

Yearly summary of insider trading at Avigen Inc \de (AVGN) by Thomson Mary Christina

		Insider Buying		Insider Sales		Option Exercises
Year	Symbol	Shares	Value	Shares	Value	Shares	Value
2007	AVGN	0	$0	13,000	$91,000	13,000	$42,740

Insider trading activities at 2 companies by Thomson Mary Christina:

1. Sierra Oncology, Inc. (SRRA)

2. Avigen Inc \de (AVGN)

Table 1. Insider trading of Sierra Oncology, Inc. (SRRA) by Thomson Mary Christina

Trade Date	Symbol	Trade Type	Shares	Price ($)	Value ($)
2022-04-04	SRRA	Option Ex	2,000	13.04	26,080
2022-04-04	SRRA	Sale	2,000	35.14	70,276
2022-03-04	SRRA	Option Ex	2,000	13.04	26,080
2022-03-04	SRRA	Sale	2,000	30.60	61,196
2022-02-04	SRRA	Option Ex	2,000	13.04	26,080
2022-02-04	SRRA	Sale	2,000	29.78	59,560
2022-01-26	SRRA	Option Ex	2,000	13.04	26,080
2022-01-26	SRRA	Sale	2,000	29.00	58,000

Table 2. Insider trading of Avigen Inc \de (AVGN) by Thomson Mary Christina

Trade Date	Symbol	Trade Type	Shares	Price ($)	Value ($)
2007-06-06	AVGN	Option Ex	4,000	3.38	13,520
2007-06-06	AVGN	Sale	4,000	7.00	28,000
2007-04-12	AVGN	Option Ex	4,000	3.38	13,520
2007-04-12	AVGN	Sale	4,000	7.00	28,000
2007-03-08	AVGN	Option Ex	5,000	3.14	15,700
2007-03-08	AVGN	Sale	5,000	7.00	35,000

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 Thomson Mary Christina (General Counsel, CCO & Sec'y of Sierra Oncology, Inc. at the time of this reporting) see the Securities and Exchange Commission (SEC) website.

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