Michael B. Sheffery

Michael B. Sheffery is a declared insider at 2 companies; the most frequent names are Athersys, INC / NEW and Supernus Pharmaceuticals, Inc. Between 8 June 2007 and 4 May 2012, the trades on record add up to 16 filings.

Every open-market trade on record is a purchase: 9 purchases worth €16.2M, and no sale. Buying on the open market means paying the going price with one's own funds, a different act from receiving shares as pay. So far in 2012, the count stands at 3 purchases and no sales.

A typical purchase (the median) is worth €346k.

The latest filing, published on 7 May 2012, reports a transaction in Supernus Pharmaceuticals, Inc. The last purchase on record was published on 7 May 2012, which is 5,299 days ago. Typically, a trade is published a median of 3 days after it takes place. Section 16 rules allow two business days to file each Form 4. Every figure here comes from the filings published by SEC (Form 4) and describes the past, not future prices; it is not investment advice.