Insider trading activities (stock purchases, sales, and option exercises) reported by insiders of Martek Biosciences Corp (MATK) since 2010 are shown in Table 1 and Table 2. Table 1 shows the monthly insider trading data of Martek Biosciences Corp. Table 2 shows the detailed insider transactions. This company's CIK number is 892025.
Total stock buying since 2010: $998,221,045.
Total stock sales since 2010: $0.
Total stock option exercises since 2010: $0.
▪ Recent SEC 13D filings for all companies
▪ Recent portfolio reports of all companies
| Insider Buying | Insider Sales | Option Exercises | ||||
|---|---|---|---|---|---|---|
| Year | Shares | Value | Shares | Value | Shares | Value |
| 2011 | 31,688,226 | $998,179,119 | 0 | $0 | 0 | $0 |
| 2010 | 2,000 | $41,926 | 0 | $0 | 2,449 | $0 |
| Trading Period | Insider Buying | Insider Sales | Option Exercises | |||
|---|---|---|---|---|---|---|
| year-month | Shares | Value | Shares | Value | Shares | Value |
| 2011-02 | 31,688,226 | $998,179,119 | 0 | $0 | 0 | $0 |
| 2010-09 | 0 | $0 | 0 | $0 | 2,449 | $0 |
| 2010-07 | 2,000 | $41,926 | 0 | $0 | 0 | $0 |
| Trade Date | Insider Name | Trade Type | Shares | Price ($) | Value ($) |
|---|---|---|---|---|---|
| 2011-02-24 | Royal Dsm N.v. (10% Owner) | Buy | 245,302 | 31.50 | 7,727,013 |
| 2011-02-23 | Royal Dsm N.v. (10% Owner) | Buy | 17,000 | 31.50 | 535,500 |
| 2011-02-22 | Royal Dsm N.v. (10% Owner) | Buy | 15,712,978 | 31.50 | 494,958,807 |
| 2010-09-17 | Pernock David M (Director) | Option Ex | 2,449 | .00 | 0 |
| 2010-07-07 | Dubin Steve (Chief Executive Officer) | Buy | 2,000 | 20.96 | 41,926 |
Insider trading activities including stock purchases, stock sales, and option exercises of MATK listed in the above tables cannot be completely guaranteed as to their accuracy. For more insider trading information of Martek Biosciences Corp (symbol MATK, CIK number 892025) see the Securities and Exchange Commission (SEC) website.