1. Corporate Officers - O
2. Oneill Alison

Insider Trading History of Oneill Alison

The following table details the insider trading activities (stock purchases, stock sales, and stock option exercises) of Oneill Alison since 2007. This trader's CIK number is 1283882. At the time of last reporting, Oneill Alison was the Chief Medical Officer of Surface Oncology, Inc.. (stock ticker symbol SURF). Also see all insider trading activities at Surface Oncology, Inc..

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

Yearly summary of insider trading at Surface Oncology, Inc. (SURF) by Oneill Alison

		Insider Buying		Insider Sales		Option Exercises
Year	Symbol	Shares	Value	Shares	Value	Shares	Value
2023	SURF	0	$0	7,042	$6,619	0	$0
2022	SURF	0	$0	19,272	$98,010	0	$0

Yearly summary of insider trading at Covalent Group Inc (ENCO) by Oneill Alison

		Insider Buying		Insider Sales		Option Exercises
Year	Symbol	Shares	Value	Shares	Value	Shares	Value
2007	ENCO	0	$0	25,100	$76,168	25,100	$55,997

Insider trading activities at 2 companies by Oneill Alison:

1. Surface Oncology, Inc. (SURF)

2. Covalent Group Inc (ENCO)

Table 1. Insider trading of Surface Oncology, Inc. (SURF) by Oneill Alison

Trade Date	Symbol	Trade Type	Shares	Price ($)	Value ($)
2023-08-01	SURF	Sale	7,042	.94	6,619
2022-08-03	SURF	Sale	4,463	1.72	7,676
2021-07-21	SURF	Sale	14,809	6.10	90,334

Table 2. Insider trading of Covalent Group Inc (ENCO) by Oneill Alison

Trade Date	Symbol	Trade Type	Shares	Price ($)	Value ($)
2007-10-25	ENCO	Option Ex	6,850	2.26	15,480
2007-10-26	ENCO	Option Ex	100	2.60	260
2007-10-25	ENCO	Sale	6,850	3.00	20,550
2007-10-26	ENCO	Sale	100	3.10	310
2007-05-31	ENCO	Option Ex	1,250	2.26	2,824
2007-05-31	ENCO	Sale	1,250	3.20	4,000
2007-05-25	ENCO	Option Ex	16,900	2.21	37,433
2007-05-25	ENCO	Sale	16,900	3.04	51,308

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 Oneill Alison (Chief Medical Officer of Surface Oncology, Inc. at the time of this reporting) see the Securities and Exchange Commission (SEC) website.

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