Insider Trading History of Sheffery Michael B

The following table details the insider trading activities (stock purchases, stock sales, and stock option exercises) by Sheffery Michael B since 2007. The trader's CIK number is 1283887. At the time of the last reporting, Sheffery Michael B was the Director of Supernus Pharmaceuticals, Inc.. (stock ticker symbol SUPN). Also see all insider trading activities at Supernus Pharmaceuticals, Inc..

Note that in the past SHEFFERY MICHAEL B also reported insider trading activities as an insider of the following companies:

Yearly summary of insider trading at Supernus Pharmaceuticals, Inc. (SUPN) by Sheffery Michael B

Insider Buying Insider Sales Option Exercises
Year Symbol Shares Value Shares Value Shares Value
2012 SUPN 1,100,000 $5,500,000 0 $0 0 $0

Yearly summary of insider trading at Athersys, Inc / New (ATHX) by Sheffery Michael B

Insider Buying Insider Sales Option Exercises
Year Symbol Shares Value Shares Value Shares Value
2009 ATHX 162,200 $126,330 0 $0 0 $0
2008 ATHX 448,000 $1,075,200 0 $0 0 $0
2007 ATHX 3,000,000 $15,000,000 0 $0 0 $0


Insider trading activities at 2 companies by Sheffery Michael B:

1. Supernus Pharmaceuticals, Inc. (SUPN)

2. Athersys, Inc / New (ATHX)

Table 1. Insider trading of Supernus Pharmaceuticals, Inc. (SUPN) by Sheffery Michael B

Trade Date Symbol Trade Type Shares Price ($) Value ($)
2012-05-04 SUPN Buy 1,100,000 5.00 5,500,000

Table 2. Insider trading of Athersys, Inc / New (ATHX) by Sheffery Michael B

Trade Date Symbol Trade Type Shares Price ($) Value ($)
2009-03-17 ATHX Buy 110,000 .84 92,400
2009-03-16 ATHX Buy 52,200 .65 33,930
2008-05-22 ATHX Buy 268,000 2.40 643,200
2008-05-21 ATHX Buy 130,000 2.40 312,000
2008-05-13 ATHX Buy 50,000 2.40 120,000
2007-06-08 BVIC Buy 3,000,000 5.00 15,000,000

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 Sheffery Michael B (Director of Supernus Pharmaceuticals, Inc. at the time of this reporting) see the Securities and Exchange Commission (SEC) website.



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