Insider Trading activities of Martek Biosciences Corp insiders.

Monthly summaries of insider trading activities (stock purchases, sales, and option exercises) reported by insiders of Martek Biosciences Corp since 2005 are illustrated in Table 1 and Table 2. Table 1 shows the monthly insider trading data of Martek Biosciences Corp since year 2005. Table 2 shows the detailed insider transactions of Martek Biosciences Corp since 2005. The reporting company's ticker symbol is MATK. The reporting company's CIK number is 892025.
The total value of stock buying since 2005 is $998,748,385.
The total value of stock sales since 2005 is $1,693,486.
The total value of stock option exercises since 2005 is $1,465,467.


Table 1. Monthly summaries of insider stock purchases, sales, and option exercises for Martek Biosciences Corp (MATK).
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
2010-03 0 $0 0 $0 95,753 $372,000
2009-09 0 $0 4,907 $116,786 1,634 $0
2009-06 0 $0 0 $0 1,755 $0
2009-03 0 $0 0 $0 44,949 $0
2008-09 0 $0 0 $0 1,634 $0
2008-06 0 $0 9,500 $319,888 10,000 $62,500
2008-03 0 $0 0 $0 37,914 $0
2008-01 0 $0 0 $0 5,000 $72,185
2007-12 1,000 $28,150 40,500 $1,139,247 50,000 $775,000
2007-04 5,864 $124,723 0 $0 0 $0
2007-03 2,500 $50,697 0 $0 0 $0
2006-09 14,000 $295,960 0 $0 0 $0
2006-03 0 $0 3,500 $117,565 3,500 $115,062
2006-02 1,000 $27,810 0 $0 0 $0
2005-12 0 $0 0 $0 4,000 $68,720

Table 2. Detailed insider stock purchases, sales, and option exercises of Martek Biosciences Corp insiders (MATK)
  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
2010-03-19 Feitel David (Exec VP, Gen Counsel & Secreta) Option Ex 4,698 .00 0
2010-03-19 Nitze Peter A (Chief Operating Officer&ExecVP) Option Ex 7,305 .00 0
2010-03-19 Abramson David M (President) Option Ex 7,305 .00 0
2010-03-19 Easterling Barney B Jr (Sr VP Manufacturing) Option Ex 4,104 .00 0
2010-03-19 Dubin Steve (Chief Executive Officer) Option Ex 9,431 .00 0
2010-03-19 Buzy Peter L (CFO, Treasurer and Exec VP) Option Ex 7,305 .00 0
2010-03-18 Devine Michael G (Director) Option Ex 3,515 .00 0
2010-03-18 D'andrea Harry J (Director) Option Ex 3,515 .00 0
2010-03-18 Keller Jerome C (Director) Option Ex 3,515 .00 0
2010-03-18 Rotberg Eugene H (Director) Option Ex 3,515 .00 0
2010-03-18 Flanagan Robert J (Director) Option Ex 3,515 .00 0
2010-03-18 Macmaster Jr Douglas J (Director) Option Ex 3,515 .00 0
2010-03-18 Kawalek Polly B (Director) Option Ex 3,515 .00 0
2010-03-09 Buzy Peter L (CFO, Treasurer and Exec VP) Option Ex 16,000 12.00 192,000
2010-03-09 Macmaster Jr Douglas J (Director) Option Ex 15,000 12.00 180,000
2009-09-23 Macmaster Jr Douglas J (Director) Sale 4,907 23.80 116,786
2009-09-04 Fealey Terence (SrVP&ChiefInnovationOfficer) Option Ex 1,634 .00 0
2009-06-06 Devine Michael G (Director) Option Ex 1,755 .00 0
2009-03-19 Fealey Terence (SrVP&ChiefInnovationOfficer) Option Ex 1,074 .00 0
2009-03-19 Feitel David (Sr VP, Gen Counsel & Secretary) Option Ex 2,520 .00 0
2009-03-19 Nitze Peter A (Chief Operating Officer&ExecVP) Option Ex 4,795 .00 0
2009-03-19 Abramson David M (President) Option Ex 4,795 .00 0
2009-03-19 Easterling Barney B Jr (Sr VP Manufacturing) Option Ex 2,694 .00 0
2009-03-19 Dubin Steve (Chief Executive Officer) Option Ex 6,191 .00 0
2009-03-19 Buzy Peter L (CFO, Treasurer and Exec VP) Option Ex 4,795 .00 0
2009-03-13 D'andrea Harry J (Director) Option Ex 2,034 .00 0
2009-03-13 Beery James (Director) Option Ex 2,034 .00 0
2009-03-13 Keller Jerome C (Director) Option Ex 2,034 .00 0
2009-03-13 Rotberg Eugene H (Director) Option Ex 2,034 .00 0
2009-03-13 Flanagan Robert J (Director) Option Ex 2,034 .00 0
2009-03-13 Mayer Robert H (Director) Option Ex 2,034 .00 0
2009-03-13 Macmaster Jr Douglas J (Director) Option Ex 2,034 .00 0
2009-03-13 Kawalek Polly B (Director) Option Ex 2,034 .00 0
2009-03-06 Mayer Robert H (Director) Option Ex 1,813 .00 0
2008-09-08 Fealey Terence (SrVP&ChiefInnovationOfficer) Option Ex 1,634 .00 0
2008-06-18 D'andrea Harry J (Director) Sale 1,500 34.03 51,040
2008-06-18 Macmaster Jr Douglas J (Director) Sale 8,000 33.61 268,848
2008-06-18 Macmaster Jr Douglas J (Director) Option Ex 10,000 6.25 62,500
2008-03-19 Feitel David (Sr VP, Gen Counsel & Secretary) Option Ex 1,418 .00 0
2008-03-19 Nitze Peter A (Chief Operating Officer&ExecVP) Option Ex 2,788 .00 0
2008-03-19 Abramson David M (President) Option Ex 2,788 .00 0
2008-03-19 Easterling Barney B Jr (Sr VP Manufacturing) Option Ex 1,566 .00 0
2008-03-19 Dubin Steve (Chief Executive Officer) Option Ex 3,599 .00 0
2008-03-19 Buzy Peter L (CFO, Treasurer and Exec VP) Option Ex 2,788 .00 0
2008-03-13 D'andrea Harry J (Director) Option Ex 2,907 .00 0
2008-03-13 Beery James (Director) Option Ex 2,907 .00 0
2008-03-13 Keller Jerome C (Director) Option Ex 2,907 .00 0
2008-03-13 Rotberg Eugene H (Director) Option Ex 2,907 .00 0
2008-03-13 Flanagan Robert J (Director) Option Ex 2,907 .00 0
2008-03-13 Macmaster Jr Douglas J (Director) Option Ex 2,907 .00 0
2008-03-13 Kawalek Polly B (Director) Option Ex 2,907 .00 0
2008-03-07 D'andrea Harry J (Director) Option Ex 2,618 .00 0
2008-01-02 Rotberg Eugene H (Director) Option Ex 5,000 14.44 72,185
2007-12-21 Beery James (Director) Sale 500 28.74 14,367
2007-12-18 Dubin Steve (Chief Executive Officer) Buy 1,000 28.15 28,150
2007-12-18 Buzy Peter L (CFO, Treasurer and Exec VP) Sale 40,000 28.12 1,124,880
2007-12-18 Buzy Peter L (CFO, Treasurer and Exec VP) Option Ex 50,000 15.50 775,000
2007-04-05 Abramson David M (President) Buy 1,000 21.58 21,580
2007-04-04 Nitze Peter A (Chief Operating Officer&ExecVP) Buy 1,000 21.15 21,149
2007-04-04 Buzy Peter L (CFO, Treasurer and Exec VP) Buy 3,864 21.22 81,994
2007-03-30 Dubin Steve (Chief Executive Officer) Buy 2,500 20.28 50,697
2006-09-12 Flanagan Robert J (Director) Buy 5,000 21.48 107,400
2006-09-11 Dubin Steve (President & CEO) Buy 4,000 20.69 82,760
2006-09-11 Flanagan Robert J (Director) Buy 2,500 20.84 52,100
2006-03-09 Mahar John H (Director) Sale 3,500 33.59 117,565
2006-03-09 Mahar John H (Director) Option Ex 3,500 32.88 115,062
2006-02-03 Kawalek Polly B (Director) Buy 1,000 27.81 27,810
2005-12-22 Dubin Steve (President) Option Ex 4,000 17.18 68,720

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.