Martek Biosciences Corp. (MATK)

Number of records: 50
SEC FilingInsiderCompanyTrade DateTransactionSharesAvg. PriceTotal% HoldingsReturn
01-Mar-11 7:23 PM
View: 
Keller Jerome C
Director
Martek Biosciences Corp. (MATK) 25-Feb-11Grant 2,533----100%
0 to 2.53K
01-Mar-11 7:27 PM
View: 
Dubin Steve
Chief Executive Officer
Director
Martek Biosciences Corp. (MATK) 25-Feb-11Grant 52,247----100%
0 to 52.25K
01-Mar-11 7:28 PM
View: 
Easterling Barney B Jr
SR VP Manufacturing
Martek Biosciences Corp. (MATK) 25-Feb-11Disposition 22,736$31.50$716,184.00(100%)
22.74K to 0
< 1%
01-Mar-11 7:24 PM
View: 
MacMaster Jr Douglas J
Director
Martek Biosciences Corp. (MATK) 25-Feb-11Disposition 2,533$31.50$79,789.50(100%)
2.53K to 0
< 1%
01-Mar-11 7:25 PM
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Mayer Robert H
Director
Martek Biosciences Corp. (MATK) 25-Feb-11Grant 6,048----100%
0 to 6.05K
01-Mar-11 7:22 PM
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Devine Michael G
Director
Martek Biosciences Corp. (MATK) 25-Feb-11Disposition 2,533$31.50$79,789.50(100%)
2.53K to 0
< 1%
01-Mar-11 7:20 PM
View: 
Beery James
Director
Martek Biosciences Corp. (MATK) 25-Feb-11Disposition 6,048$31.50$190,512.00(100%)
6.05K to 0
< 1%
01-Mar-11 7:26 PM
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Abramson David M
President
Martek Biosciences Corp. (MATK) 25-Feb-11Grant 40,468----100%
0 to 40.47K
01-Mar-11 7:28 PM
View: 
Feitel David
Exec VP, Gen Counsel & Secreta
Martek Biosciences Corp. (MATK) 25-Feb-11Disposition 31,881$31.50$1,004,250.00(100%)
31.88K to 0
< 1%
01-Mar-11 7:22 PM
View: 
Flanagan Robert J
Director
Martek Biosciences Corp. (MATK) 25-Feb-11Grant 2,533----100%
0 to 2.53K
01-Mar-11 7:23 PM
View: 
Keller Jerome C
Director
Martek Biosciences Corp. (MATK) 25-Feb-11Disposition 2,533$31.50$79,789.50(100%)
2.53K to 0
< 1%
01-Mar-11 7:26 PM
View: 
Rotberg Eugene H
Director
Martek Biosciences Corp. (MATK) 25-Feb-11Grant 2,533----100%
0 to 2.53K
01-Mar-11 7:27 PM
View: 
Dubin Steve
Chief Executive Officer
Director
Martek Biosciences Corp. (MATK) 25-Feb-11Disposition 52,247$31.50$1,645,780.00(100%)
52.25K to 0
< 1%
01-Mar-11 7:21 PM
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d'Andrea Harry J
Director
Martek Biosciences Corp. (MATK) 25-Feb-11Grant 2,533----100%
0 to 2.53K
01-Mar-11 7:25 PM
View: 
Mayer Robert H
Director
Martek Biosciences Corp. (MATK) 25-Feb-11Disposition 6,048$31.50$190,512.00(100%)
6.05K to 0
< 1%
01-Mar-11 7:26 PM
View: 
Abramson David M
President
Martek Biosciences Corp. (MATK) 25-Feb-11Disposition 40,468$31.50$1,274,740.00(100%)
40.47K to 0
< 1%
01-Mar-11 7:27 PM
View: 
Buzy Peter L
CFO, Treasurer and Exec VP
Martek Biosciences Corp. (MATK) 25-Feb-11Grant 40,468----100%
0 to 40.47K
01-Mar-11 7:25 PM
View: 
Pernock David M
Director
Martek Biosciences Corp. (MATK) 25-Feb-11Grant 2,533----100%
0 to 2.53K
01-Mar-11 7:23 PM
View: 
Kawalek Polly B
Director
Martek Biosciences Corp. (MATK) 25-Feb-11Grant 2,533----100%
0 to 2.53K
01-Mar-11 7:29 PM
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Nitze Peter A
Chief Operating Officer&ExecVP
Martek Biosciences Corp. (MATK) 25-Feb-11Grant 40,468----100%
0 to 40.47K
01-Mar-11 7:22 PM
View: 
Flanagan Robert J
Director
Martek Biosciences Corp. (MATK) 25-Feb-11Disposition 2,533$31.50$79,789.50(100%)
2.53K to 0
< 1%
01-Mar-11 7:26 PM
View: 
Rotberg Eugene H
Director
Martek Biosciences Corp. (MATK) 25-Feb-11Disposition 2,533$31.50$79,789.50(100%)
2.53K to 0
< 1%
01-Mar-11 7:28 PM
View: 
Easterling Barney B Jr
SR VP Manufacturing
Martek Biosciences Corp. (MATK) 25-Feb-11Grant 22,736----100%
0 to 22.74K
01-Mar-11 7:24 PM
View: 
MacMaster Jr Douglas J
Director
Martek Biosciences Corp. (MATK) 25-Feb-11Grant 2,533----100%
0 to 2.53K
01-Mar-11 7:21 PM
View: 
d'Andrea Harry J
Director
Martek Biosciences Corp. (MATK) 25-Feb-11Disposition 2,533$31.50$79,789.50(100%)
2.53K to 0
< 1%
01-Mar-11 7:20 PM
View: 
Beery James
Director
Martek Biosciences Corp. (MATK) 25-Feb-11Grant 6,048----100%
0 to 6.05K
01-Mar-11 7:22 PM
View: 
Devine Michael G
Director
Martek Biosciences Corp. (MATK) 25-Feb-11Grant 2,533----100%
0 to 2.53K
01-Mar-11 7:27 PM
View: 
Buzy Peter L
CFO, Treasurer and Exec VP
Martek Biosciences Corp. (MATK) 25-Feb-11Disposition 40,468$31.50$1,274,740.00(100%)
40.47K to 0
< 1%
01-Mar-11 7:25 PM
View: 
Pernock David M
Director
Martek Biosciences Corp. (MATK) 25-Feb-11Disposition 2,533$31.50$79,789.50(100%)
2.53K to 0
< 1%
01-Mar-11 7:28 PM
View: 
Feitel David
Exec VP, Gen Counsel & Secreta
Martek Biosciences Corp. (MATK) 25-Feb-11Grant 31,881----100%
0 to 31.88K
01-Mar-11 7:23 PM
View: 
Kawalek Polly B
Director
Martek Biosciences Corp. (MATK) 25-Feb-11Disposition 2,533$31.50$79,789.50(100%)
2.53K to 0
< 1%
01-Mar-11 7:29 PM
View: 
Nitze Peter A
Chief Operating Officer&ExecVP
Martek Biosciences Corp. (MATK) 25-Feb-11Disposition 40,468$31.50$1,274,740.00(100%)
40.47K to 0
< 1%
24-Feb-11 9:56 PM
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Royal Dsm N.V.
10% Owner
Martek Biosciences Corp. (MATK) 24-Feb-11Market Purchase 245,302$31.50$7,727,010.00< 1%
29.8M to 30.04M
0%
24-Feb-11 9:56 PM
View: 
Royal Dsm N.V.
10% Owner
Martek Biosciences Corp. (MATK) 23-Feb-11Market Purchase 17,000$31.50$535,500.00< 1%
29.78M to 29.8M
0%
24-Feb-11 9:56 PM
View: 
Royal Dsm N.V.
10% Owner
Martek Biosciences Corp. (MATK) 22-Feb-11Market Purchase 32$31.50$1,008.00< 1%
29.78M to 29.78M
< 1%
01-Mar-11 5:34 PM
View: 
Royal Dsm N.V.
10% Owner
Martek Biosciences Corp. (MATK) 22-Feb-11Market Purchase 15,712,900$31.50$494,958,016.0052%
30.04M to 45.76M
(< 1%)
25-Feb-11 12:12 PM
View: 
Nitze Peter A
Chief Operating Officer&ExecVP
Martek Biosciences Corp. (MATK) 22-Feb-11Disposition (change in control) 1,000$31.50$31,500.00(100%)
1.0K to 0
(< 1%)
25-Feb-11 11:51 AM
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Flanagan Robert J
Director
Martek Biosciences Corp. (MATK) 18-Feb-11Disposition (change in control) 8,675$31.50$273,262.00(2%)
351.28K to 342.61K
< 1%
25-Feb-11 12:11 PM
View: 
Rotberg Eugene H
Director
Martek Biosciences Corp. (MATK) 18-Feb-11Disposition (change in control) 55,206$31.50$1,738,990.00(79%)
69.81K to 14.6K
< 1%
25-Feb-11 11:50 AM
View: 
Devine Michael G
Director
Martek Biosciences Corp. (MATK) 18-Feb-11Disposition (change in control) 5,270$31.50$166,005.00(100%)
5.27K to 0
< 1%
25-Feb-11 11:55 AM
View: 
MacMaster Jr Douglas J
Director
Martek Biosciences Corp. (MATK) 18-Feb-11Disposition (change in control) 25,273$31.50$796,100.00(100%)
25.27K to 0
< 1%
25-Feb-11 12:11 PM
View: 
Abramson David M
President
Martek Biosciences Corp. (MATK) 18-Feb-11Disposition (change in control) 11,134$31.50$350,721.00(100%)
11.13K to 0
< 1%
25-Feb-11 12:12 PM
View: 
Feitel David
Exec VP, Gen Counsel & Secreta
Martek Biosciences Corp. (MATK) 18-Feb-11Disposition (change in control) 5,687$31.50$179,140.00(81%)
6.98K to 1.29K
< 1%
25-Feb-11 12:12 PM
View: 
Buzy Peter L
CFO, Treasurer and Exec VP
Martek Biosciences Corp. (MATK) 18-Feb-11Disposition (change in control) 22,879$31.50$720,688.00(86%)
26.72K to 3.84K
< 1%
25-Feb-11 11:51 AM
View: 
Flanagan Robert J
Director
Martek Biosciences Corp. (MATK) 18-Feb-11Disposition (change in control) 342,609$31.50$10,792,200.00(100%)
342.61K to 0
< 1%
25-Feb-11 12:12 PM
View: 
Easterling Barney B Jr
SR VP Manufacturing
Martek Biosciences Corp. (MATK) 18-Feb-11Disposition (change in control) 19,042$31.50$599,823.00(100%)
19.04K to 0
< 1%
25-Feb-11 11:55 AM
View: 
Mayer Robert H
Director
Martek Biosciences Corp. (MATK) 18-Feb-11Disposition (change in control) 3,847$31.50$121,180.00(100%)
3.85K to 0
< 1%
25-Feb-11 12:11 PM
View: 
Rotberg Eugene H
Director
Martek Biosciences Corp. (MATK) 18-Feb-11Disposition (change in control) 14,600$31.50$459,900.00(100%)
14.6K to 0
< 1%
25-Feb-11 11:48 AM
View: 
Beery James
Director
Martek Biosciences Corp. (MATK) 18-Feb-11Disposition (change in control) 4,941$31.50$155,642.00(100%)
4.94K to 0
< 1%
25-Feb-11 12:12 PM
View: 
Pernock David M
Director
Martek Biosciences Corp. (MATK) 18-Feb-11Disposition (change in control) 2,449$31.50$77,143.50(100%)
2.45K to 0
< 1%