Insider Trading activities of Surface Oncology, Inc. (SURF)

Insider trading activities (stock purchases, sales, and option exercises) reported by insiders of Surface Oncology, Inc. (SURF) since 2005 are illustrated in Table 1 and Table 2. Table 1 shows the monthly insider trading data of Surface Oncology, Inc. since year 2005. Table 2 shows the detailed insider transactions of Surface Oncology, Inc. since 2005. The reporting company's ticker symbol is SURF. The reporting company's CIK number is 1718108.
The total value of stock buying since 2005 is $42,479,940.
The total value of stock sales since 2005 is $0.
The total value of stock option exercises since 2005 is $109,460.


Table 1. Monthly summaries of insider stock purchases, sales, and option exercises for Surface Oncology, Inc. (SURF).
Trading Period Insider Buying Insider Sales Option Exercises
year-month Shares Value Shares Value Shares Value
2019-04 0 $0 0 $0 2,728 $960
2019-01 0 $0 0 $0 27,273 $108,500
2018-04 2,831,996 $42,479,940 0 $0 0 $0

Table 2. Detailed insider stock purchases, sales, and option exercises of Surface Oncology, Inc. insiders (SURF)
  Trade Date   Insider Name Trade Type     Shares       Price ($)   Value ($)
2019-04-01 Fees Jessica (See Remarks) Option Ex 2,728 .35 960
2019-01-04 Fees Jessica (See Remarks) Option Ex 2,273 2.24 5,100
2019-01-04 Ross Robert W. (Chief Medical Officer) Option Ex 25,000 4.14 103,400
2018-04-23 Grayzel David S. (Director) Buy 100,000 15.00 1,500,000
2018-04-23 Atlas Venture Associates Ix, Llc (10% Owner) Buy 100,000 15.00 1,500,000
2018-04-23 Shanafelt Armen (Director) Buy 266,000 15.00 3,990,000
2018-04-23 Hall Steven Edward (10% Owner) Buy 266,000 15.00 3,990,000
2018-04-23 Florence Anthony A. Jr. (10% Owner) Buy 133,333 15.00 1,999,995
2018-04-23 Sonsini Peter W. (10% Owner) Buy 133,333 15.00 1,999,995
2018-04-23 New Enterprise Associates 14, L.p. (10% Owner) Buy 133,333 15.00 1,999,995
2018-04-23 Viswanathan Ravi (10% Owner) Buy 133,333 15.00 1,999,995
2018-04-23 Baskett Forest (10% Owner) Buy 133,333 15.00 1,999,995
2018-04-23 Sandell Scott D (10% Owner) Buy 133,333 15.00 1,999,995
2018-04-23 Kerins Patrick J (10% Owner) Buy 133,333 15.00 1,999,995
2018-04-23 Mott David M (10% Owner) Buy 133,333 15.00 1,999,995
2018-04-23 Barrett M James (10% Owner) Buy 133,333 15.00 1,999,995
2018-04-23 Novartis Ag (10% Owner) Buy 766,666 15.00 11,499,990
2018-04-23 Barris Peter J (10% Owner) Buy 133,333 15.00 1,999,995

Insider trading activities including stock purchases, stock sales, and option exercises of SURF listed in the above tables cannot be completely guaranteed as to their accuracy. For more insider trading information of Surface Oncology, Inc. (symbol SURF, CIK number 1718108) see the Securities and Exchange Commission (SEC) website.