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General | Insiders | Insider Transactions | Monthly Overview | Weekly Overview

Overview of all insider trading transactions in MARTEK BIOSCIENCES CORP. Get notifications about new insider transactions in MARTEK BIOSCIENCES CORP for free.

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Date	Ticker	Company	Owner	Relationship	Transaction	Code	Cost ($)	Shares	Transaction Value ($)	Total Shares	% Holdings
Jan 18 2008	MATK	MARTEK BIOSCIENCES ...	Feitel David	Sr VP, Gen Counsel ...	Option Exercise	A	0.00	5,514	0	5,514
Jan 18 2008	MATK	MARTEK BIOSCIENCES ...	Fealey Terence	SrVP&ChiefInnovatio ...	Option Exercise	A	0.00	5,374	0	5,374
Jan 18 2008	MATK	MARTEK BIOSCIENCES ...	EASTERLING BARNEY B JR	Sr VP Manufacturing	Option Exercise	A	0.00	5,640	0	5,640
Jan 18 2008	MATK	MARTEK BIOSCIENCES ...	BUZY PETER L	CFO, Treasurer and ...	Option Exercise	A	0.00	10,039	0	10,039
Jan 18 2008	MATK	MARTEK BIOSCIENCES ...	DUBIN STEVE	Chief Executive Off ...	Option Exercise	A	0.00	12,961	0	12,961
Jan 18 2008	MATK	MARTEK BIOSCIENCES ...	ABRAMSON DAVID M	President	Option Exercise	A	0.00	10,039	0	10,039
Jan 04 2008	MATK	MARTEK BIOSCIENCES ...	ROTBERG EUGENE H	Director	Option Exercise	M	14.44	5,000	72,185	0
Jan 04 2008	MATK	MARTEK BIOSCIENCES ...	ROTBERG EUGENE H	Director	Buy	M	14.44	5,000	72,185	46,750	41.8 K to 46.8 K (+11.98 %)
Jan 14 2008	MATK	MARTEK BIOSCIENCES ...	BEERY JAMES	Director	Sell	S	28.74	412	11,841	0	412 to 0 (-100.00 %)
Jan 14 2008	MATK	MARTEK BIOSCIENCES ...	BEERY JAMES	Director	Sell	S	28.73	88	2,528	412	500 to 412 (-17.60 %)
Dec 21 2007	MATK	MARTEK BIOSCIENCES ...	FLANAGAN ROBERT J	Director	Grant	A	0.00	25,341	0	332,609	307.3 K to 332.6 K (+8.25 %)
Dec 21 2007	MATK	MARTEK BIOSCIENCES ...	FLANAGAN ROBERT J	Director	Grant	A	0.00	105	0	219	114 to 219 (+92.11 %)
Dec 18 2007	MATK	MARTEK BIOSCIENCES ...	BUZY PETER L	CFO, Treasurer and ...	Option Exercise	M	15.50	50,000	775,000	0
Dec 18 2007	MATK	MARTEK BIOSCIENCES ...	BUZY PETER L	CFO, Treasurer and ...	Sell	S	28.12	40,000	1,124,900	10,000	50 K to 10 K (-80.00 %)
Dec 18 2007	MATK	MARTEK BIOSCIENCES ...	BUZY PETER L	CFO, Treasurer and ...	Buy	M	15.50	50,000	775,000	50,000	0 to 50 K
Dec 18 2007	MATK	MARTEK BIOSCIENCES ...	DUBIN STEVE	Chief Executive Off ...	Buy	P	28.15	1,000	28,150	17,700	16.7 K to 17.7 K (+5.99 %)
Jun 08 2007	MATK	MARTEK BIOSCIENCES ...	Fealey Terence	SrVP&ChiefInnovatio ...	Option Exercise	A	0.00	8,170	0	8,170
Apr 05 2007	MATK	MARTEK BIOSCIENCES ...	ABRAMSON DAVID M	President	Buy	P	21.58	1,000	21,580	1,250	250 to 1.3 K (+400.00 %)
Apr 05 2007	MATK	MARTEK BIOSCIENCES ...	BUZY PETER L	CFO, Treasurer and ...	Buy	P	21.22	3,864	81,994	3,864	0 to 3.9 K
Apr 04 2007	MATK	MARTEK BIOSCIENCES ...	Nitze Peter A	Chief Operating Off ...	Buy	P	21.15	1,000	21,150	1,000	0 to 1,000
Mar 30 2007	MATK	MARTEK BIOSCIENCES ...	DUBIN STEVE	Chief Executive Off ...	Buy	P	20.28	2,500	50,698	16,700	14.2 K to 16.7 K (+17.61 %)
Mar 19 2007	MATK	MARTEK BIOSCIENCES ...	KELLER JEROME C	Director	Option Exercise	A	0.00	2,907	0	2,907
Mar 19 2007	MATK	MARTEK BIOSCIENCES ...	ROTBERG EUGENE H	Director	Option Exercise	A	0.00	2,907	0	2,907
Mar 19 2007	MATK	MARTEK BIOSCIENCES ...	MACMASTER JR DOUGLAS J	Director	Option Exercise	A	0.00	2,907	0	2,907
Mar 19 2007	MATK	MARTEK BIOSCIENCES ...	LINSERT HENRY JR	Chairman	Option Exercise	A	0.00	2,907	0	2,907
Mar 19 2007	MATK	MARTEK BIOSCIENCES ...	KAWALEK POLLY B	Director	Option Exercise	A	0.00	2,907	0	2,907
Mar 19 2007	MATK	MARTEK BIOSCIENCES ...	FLANAGAN ROBERT J	Director	Option Exercise	A	0.00	2,907	0	2,907
Mar 19 2007	MATK	MARTEK BIOSCIENCES ...	D'Andrea Harry J	Director	Option Exercise	A	0.00	2,907	0	2,907
Mar 19 2007	MATK	MARTEK BIOSCIENCES ...	BEERY JAMES	Director	Option Exercise	A	0.00	2,907	0	2,907
Jan 23 2007	MATK	MARTEK BIOSCIENCES ...	D'Andrea Harry J	Director	Option Exercise	A	0.00	2,618	0	2,618
Jan 23 2007	MATK	MARTEK BIOSCIENCES ...	Nitze Peter A	Chief Operating Off ...	Option Exercise	A	0.00	13,940	0	13,940
Jan 23 2007	MATK	MARTEK BIOSCIENCES ...	Feitel David	Sr VP, Gen Counsel ...	Option Exercise	A	0.00	7,090	0	7,090
Jan 23 2007	MATK	MARTEK BIOSCIENCES ...	FLATT JAMES H	Sr VP Research	Option Exercise	A	0.00	7,592	0	7,592
Jan 23 2007	MATK	MARTEK BIOSCIENCES ...	EASTERLING BARNEY B JR	Sr VP Manufacturing	Option Exercise	A	0.00	7,832	0	7,832
Jan 23 2007	MATK	MARTEK BIOSCIENCES ...	BUZY PETER L	CFO, Treasurer and ...	Option Exercise	A	0.00	13,940	0	13,940
Jan 23 2007	MATK	MARTEK BIOSCIENCES ...	DUBIN STEVE	Chief Executive Off ...	Option Exercise	A	0.00	17,997	0	17,997
Jan 23 2007	MATK	MARTEK BIOSCIENCES ...	ABRAMSON DAVID M	President	Option Exercise	A	0.00	13,940	0	13,940
Sep 12 2006	MATK	MARTEK BIOSCIENCES ...	FLANAGAN ROBERT J	Director	Buy	P	21.48	2,500	53,700	10,000	7.5 K to 10 K (+33.33 %)
Sep 11 2006	MATK	MARTEK BIOSCIENCES ...	DUBIN STEVE	President & CEO	Buy	P	20.69	4,000	82,764	14,200	10.2 K to 14.2 K (+39.22 %)
Sep 11 2006	MATK	MARTEK BIOSCIENCES ...	FLANAGAN ROBERT J	Director	Buy	P	20.84	2,500	52,100	7,500	5 K to 7.5 K (+50.00 %)
Jun 21 2006	MATK	MARTEK BIOSCIENCES ...	MAHAR JOHN H	Director	Option Exercise	M	19.00	5,000	95,000	0
Jun 21 2006	MATK	MARTEK BIOSCIENCES ...	MAHAR JOHN H	Director	Sell	S	28.68	5,000	143,403	0	5 K to 0 (-100.00 %)
Jun 21 2006	MATK	MARTEK BIOSCIENCES ...	MAHAR JOHN H	Director	Buy	M	19.00	5,000	95,000	5,000	0 to 5 K
Mar 20 2006	MATK	MARTEK BIOSCIENCES ...	ROTBERG EUGENE H	Director	Option Exercise	A	33.36	5,000	166,800	5,000
Mar 20 2006	MATK	MARTEK BIOSCIENCES ...	PANEM SANDRA PHD	Director	Option Exercise	A	33.36	5,000	166,800	5,000
Mar 20 2006	MATK	MARTEK BIOSCIENCES ...	MAHAR JOHN H	Director	Option Exercise	A	33.36	5,000	166,800	5,000
Mar 20 2006	MATK	MARTEK BIOSCIENCES ...	MACMASTER JR DOUGLAS J	Director	Option Exercise	A	33.36	5,000	166,800	5,000
Mar 20 2006	MATK	MARTEK BIOSCIENCES ...	KELLER JEROME C	Director	Option Exercise	A	33.36	5,000	166,800	5,000
Mar 20 2006	MATK	MARTEK BIOSCIENCES ...	FLANAGAN ROBERT J	Director	Option Exercise	A	33.36	5,000	166,800	5,000
Mar 20 2006	MATK	MARTEK BIOSCIENCES ...	KAWALEK POLLY B	Director	Option Exercise	A	33.36	5,000	166,800	5,000
Mar 20 2006	MATK	MARTEK BIOSCIENCES ...	BEERY JAMES	Director	Option Exercise	A	33.36	5,000	166,800	5,000
Mar 10 2006	MATK	MARTEK BIOSCIENCES ...	MAHAR JOHN H	Director	Option Exercise	M	32.88	3,500	115,063	0
Mar 10 2006	MATK	MARTEK BIOSCIENCES ...	MAHAR JOHN H	Director	Sell	S	33.59	3,500	117,567	0	3.5 K to 0 (-100.00 %)
Mar 10 2006	MATK	MARTEK BIOSCIENCES ...	MAHAR JOHN H	Director	Buy	M	32.88	3,500	115,063	3,500	0 to 3.5 K
Feb 15 2006	MATK	MARTEK BIOSCIENCES ...	KAWALEK POLLY B	Director	Buy	P	27.82	232	6,454	1,000	768 to 1,000 (+30.21 %)
Feb 15 2006	MATK	MARTEK BIOSCIENCES ...	KAWALEK POLLY B	Director	Buy	P	27.80	768	21,350	768	0 to 768
Jan 17 2006	MATK	MARTEK BIOSCIENCES ...	KAWALEK POLLY B	Director	Option Exercise	A	27.83	10,000	278,300	10,000
Dec 23 2005	MATK	MARTEK BIOSCIENCES ...	DUBIN STEVE	President	Option Exercise	M	17.18	4,000	68,720	25,400
Dec 23 2005	MATK	MARTEK BIOSCIENCES ...	DUBIN STEVE	President	Buy	M	17.18	4,000	68,720	10,200	6.2 K to 10.2 K (+64.52 %)
Oct 18 2005	MATK	MARTEK BIOSCIENCES ...	LINSERT HENRY JR	Chairman & CEO	Option Exercise	M	14.56	15,000	218,438	0
Oct 18 2005	MATK	MARTEK BIOSCIENCES ...	LINSERT HENRY JR	Chairman & CEO	Buy	M	14.56	15,000	218,438	418,530	403.5 K to 418.5 K (+3.72 %)
Oct 12 2005	MATK	MARTEK BIOSCIENCES ...	DUBIN STEVE	President	Option Exercise	M	17.18	600	10,308	29,400
Oct 12 2005	MATK	MARTEK BIOSCIENCES ...	DUBIN STEVE	President	Gift	G	0.00	100	0	100	0 to 100
Oct 12 2005	MATK	MARTEK BIOSCIENCES ...	DUBIN STEVE	President	Gift	G	0.00	100	0	6,200	6.3 K to 6.2 K (-1.59 %)
Oct 12 2005	MATK	MARTEK BIOSCIENCES ...	DUBIN STEVE	President	Gift	G	0.00	300	0	6,300	6.6 K to 6.3 K (-4.55 %)
Oct 12 2005	MATK	MARTEK BIOSCIENCES ...	DUBIN STEVE	President	Buy	M	17.18	600	10,308	6,600	6 K to 6.6 K (+10.00 %)
Sep 15 2005	MATK	MARTEK BIOSCIENCES ...	PANEM SANDRA PHD	Director	Option Exercise	M	27.87	10,000	278,700	5,000
Sep 15 2005	MATK	MARTEK BIOSCIENCES ...	PANEM SANDRA PHD	Director	Option Exercise	M	28.50	10,000	285,000	5,000
Sep 15 2005	MATK	MARTEK BIOSCIENCES ...	PANEM SANDRA PHD	Director	Option Exercise	M	14.56	10,000	145,625	5,000
Sep 15 2005	MATK	MARTEK BIOSCIENCES ...	PANEM SANDRA PHD	Director	Sell	S	42.30	30,000	1,268,973	24,238	54.2 K to 24.2 K (-55.31 %)
Sep 15 2005	MATK	MARTEK BIOSCIENCES ...	PANEM SANDRA PHD	Director	Buy	M	27.87	10,000	278,700	54,238	44.2 K to 54.2 K (+22.61 %)
Sep 15 2005	MATK	MARTEK BIOSCIENCES ...	PANEM SANDRA PHD	Director	Buy	M	28.50	10,000	285,000	44,238	34.2 K to 44.2 K (+29.21 %)
Sep 15 2005	MATK	MARTEK BIOSCIENCES ...	PANEM SANDRA PHD	Director	Buy	M	14.56	10,000	145,625	34,238	24.2 K to 34.2 K (+41.26 %)
Sep 14 2005	MATK	MARTEK BIOSCIENCES ...	RADMER RICHARD J	Director	Option Exercise	M	28.50	20,000	570,000	30,000
Sep 14 2005	MATK	MARTEK BIOSCIENCES ...	RADMER RICHARD J	Director	Sell	S	44.93	20,000	898,610	15,000	35 K to 15 K (-57.14 %)
Sep 14 2005	MATK	MARTEK BIOSCIENCES ...	RADMER RICHARD J	Director	Buy	M	28.50	20,000	570,000	35,000	15 K to 35 K (+133.33 %)
Sep 14 2005	MATK	MARTEK BIOSCIENCES ...	KELLER JEROME C	Sr VP Sales & Marke ...	Option Exercise	M	28.50	50,000	1,425,000	0
Sep 14 2005	MATK	MARTEK BIOSCIENCES ...	KELLER JEROME C	Sr VP Sales & Marke ...	Option Exercise	M	14.56	22,000	320,375	0
Sep 14 2005	MATK	MARTEK BIOSCIENCES ...	KELLER JEROME C	Sr VP Sales & Marke ...	Option Exercise	M	14.56	18,000	262,125	22,000
Sep 14 2005	MATK	MARTEK BIOSCIENCES ...	KELLER JEROME C	Sr VP Sales & Marke ...	Option Exercise	M	12.00	40,000	480,000	0
Sep 14 2005	MATK	MARTEK BIOSCIENCES ...	KELLER JEROME C	Sr VP Sales & Marke ...	Option Exercise	M	6.25	20,000	125,000	0
Sep 14 2005	MATK	MARTEK BIOSCIENCES ...	KELLER JEROME C	Sr VP Sales & Marke ...	Option Exercise	M	12.88	80,000	1,030,000	0
Sep 14 2005	MATK	MARTEK BIOSCIENCES ...	KELLER JEROME C	Sr VP Sales & Marke ...	Sell	S	43.02	72,000	3,097,310	3,000	75 K to 3 K (-96.00 %)
Sep 14 2005	MATK	MARTEK BIOSCIENCES ...	KELLER JEROME C	Sr VP Sales & Marke ...	Buy	M	28.50	50,000	1,425,000	75,000	25 K to 75 K (+200.00 %)
Sep 14 2005	MATK	MARTEK BIOSCIENCES ...	KELLER JEROME C	Sr VP Sales & Marke ...	Buy	M	14.56	22,000	320,375	25,000	3 K to 25 K (+733.33 %)
Sep 14 2005	MATK	MARTEK BIOSCIENCES ...	KELLER JEROME C	Sr VP Sales & Marke ...	Sell	S	44.40	158,000	7,014,884	3,000	161 K to 3 K (-98.14 %)
Sep 14 2005	MATK	MARTEK BIOSCIENCES ...	KELLER JEROME C	Sr VP Sales & Marke ...	Buy	M	14.56	18,000	262,125	161,000	143 K to 161 K (+12.59 %)
Sep 14 2005	MATK	MARTEK BIOSCIENCES ...	KELLER JEROME C	Sr VP Sales & Marke ...	Buy	M	12.00	40,000	480,000	143,000	103 K to 143 K (+38.83 %)
Sep 14 2005	MATK	MARTEK BIOSCIENCES ...	KELLER JEROME C	Sr VP Sales & Marke ...	Buy	M	6.25	20,000	125,000	103,000	83 K to 103 K (+24.10 %)
Sep 14 2005	MATK	MARTEK BIOSCIENCES ...	KELLER JEROME C	Sr VP Sales & Marke ...	Buy	M	12.88	80,000	1,030,000	83,000	3 K to 83 K (+2,666.67 %)
Sep 08 2005	MATK	MARTEK BIOSCIENCES ...	Nitze Peter A	SrVP & Chief Operat ...	Option Exercise	A	50.51	25,000	1,262,750	25,000
Apr 07 2005	MATK	MARTEK BIOSCIENCES ...	ROTBERG EUGENE H	Director	Option Exercise	M	12.00	15,000	180,000	0
Apr 07 2005	MATK	MARTEK BIOSCIENCES ...	ROTBERG EUGENE H	Director	Sell	S	60.82	15,000	912,251	41,750	56.8 K to 41.8 K (-26.43 %)
Apr 07 2005	MATK	MARTEK BIOSCIENCES ...	ROTBERG EUGENE H	Director	Buy	M	12.00	15,000	180,000	56,750	41.8 K to 56.8 K (+35.93 %)
Jun 22 2005	MATK	MARTEK BIOSCIENCES ...	PANEM SANDRA PHD	Director	Option Exercise	M	12.75	7,500	95,625	0
Jun 22 2005	MATK	MARTEK BIOSCIENCES ...	PANEM SANDRA PHD	Director	Gift	G	0.00	2,500	0	24,238	26.7 K to 24.2 K (-9.35 %)
Jun 22 2005	MATK	MARTEK BIOSCIENCES ...	PANEM SANDRA PHD	Director	Sell	S	36.84	2,601	95,816	26,738	29.3 K to 26.7 K (-8.87 %)
Jun 22 2005	MATK	MARTEK BIOSCIENCES ...	PANEM SANDRA PHD	Director	Buy	M	12.75	7,500	95,625	29,339	21.8 K to 29.3 K (+34.34 %)
Mar 21 2005	MATK	MARTEK BIOSCIENCES ...	ROTBERG EUGENE H	Director	Option Exercise	A	55.85	10,000	558,500	10,000
Mar 21 2005	MATK	MARTEK BIOSCIENCES ...	RADMER RICHARD J	Director	Option Exercise	A	55.85	10,000	558,500	10,000
Mar 21 2005	MATK	MARTEK BIOSCIENCES ...	PANEM SANDRA PHD	Director	Option Exercise	A	55.85	10,000	558,500	10,000
Mar 21 2005	MATK	MARTEK BIOSCIENCES ...	MAHAR JOHN H	Director	Option Exercise	A	55.85	10,000	558,500	10,000
Mar 21 2005	MATK	MARTEK BIOSCIENCES ...	MACMASTER JR DOUGLAS J	Director	Option Exercise	A	55.85	10,000	558,500	10,000
Mar 21 2005	MATK	MARTEK BIOSCIENCES ...	MACKLIN GORDON S	Director	Option Exercise	A	55.85	10,000	558,500	10,000
Mar 21 2005	MATK	MARTEK BIOSCIENCES ...	KELLER JEROME C	Sr VP Sales & Marke ...	Option Exercise	A	55.85	10,000	558,500	10,000
Mar 21 2005	MATK	MARTEK BIOSCIENCES ...	LINSERT HENRY JR	Chairman & CEO	Option Exercise	A	55.85	15,000	837,750	15,000
Mar 21 2005	MATK	MARTEK BIOSCIENCES ...	FLATT JAMES H	Sr VP Research & De ...	Option Exercise	A	55.85	10,000	558,500	10,000
Mar 21 2005	MATK	MARTEK BIOSCIENCES ...	EASTERLING BARNEY B JR	Sr VP Manufacturing	Option Exercise	A	55.85	10,000	558,500	10,000
Mar 21 2005	MATK	MARTEK BIOSCIENCES ...	FLANAGAN ROBERT J	Director	Option Exercise	A	55.85	10,000	558,500	10,000
Mar 21 2005	MATK	MARTEK BIOSCIENCES ...	DUBIN STEVE	President	Option Exercise	A	55.85	13,333	744,648	13,333
Mar 21 2005	MATK	MARTEK BIOSCIENCES ...	BUZY PETER L	CFO and Treasurer	Option Exercise	A	55.85	10,000	558,500	10,000
Mar 21 2005	MATK	MARTEK BIOSCIENCES ...	BEERY JAMES	Director	Option Exercise	A	55.85	10,000	558,500	10,000
Mar 21 2005	MATK	MARTEK BIOSCIENCES ...	BARKER GEORGE P	Sr VP, Gen Counsel ...	Option Exercise	A	55.85	10,000	558,500	10,000
Mar 21 2005	MATK	MARTEK BIOSCIENCES ...	ABRAMSON DAVID M	Sr VP Business Deve ...	Option Exercise	A	55.85	10,000	558,500	10,000
Feb 10 2005	MATK	MARTEK BIOSCIENCES ...	BLAKE JULES PHD	Director	Option Exercise	M	61.15	15,000	917,250	0
Feb 10 2005	MATK	MARTEK BIOSCIENCES ...	BLAKE JULES PHD	Director	Option Exercise	M	27.87	15,000	418,050	0
Feb 10 2005	MATK	MARTEK BIOSCIENCES ...	BLAKE JULES PHD	Director	Option Exercise	M	28.50	15,000	427,500	0
Feb 10 2005	MATK	MARTEK BIOSCIENCES ...	BLAKE JULES PHD	Director	Option Exercise	M	14.56	5,000	72,813	0
Feb 10 2005	MATK	MARTEK BIOSCIENCES ...	BLAKE JULES PHD	Director	Buy	M	61.15	15,000	917,250	17,955	3 K to 18 K (+507.61 %)
Feb 10 2005	MATK	MARTEK BIOSCIENCES ...	BLAKE JULES PHD	Director	Sell	S	63.70	35,000	2,229,556	2,955	38 K to 3 K (-92.21 %)
Feb 10 2005	MATK	MARTEK BIOSCIENCES ...	BLAKE JULES PHD	Director	Buy	M	27.87	15,000	418,050	37,955	23 K to 38 K (+65.35 %)
Feb 10 2005	MATK	MARTEK BIOSCIENCES ...	BLAKE JULES PHD	Director	Buy	M	28.50	15,000	427,500	22,955	8 K to 23 K (+188.56 %)
Feb 10 2005	MATK	MARTEK BIOSCIENCES ...	BLAKE JULES PHD	Director	Buy	M	14.56	5,000	72,813	7,955	3 K to 8 K (+169.20 %)
Jan 28 2005	MATK	MARTEK BIOSCIENCES ...	MACKLIN GORDON S	Director	Buy	P	49.10	9,200	451,720	90,343	81.1 K to 90.3 K (+11.34 %)
Jan 25 2005	MATK	MARTEK BIOSCIENCES ...	PANEM SANDRA PHD	Director	Buy	P	51.62	36,188	1,867,956	178,105	141.9 K to 178.1 K (+25.50 %)
Dec 23 2004	MATK	MARTEK BIOSCIENCES ...	FLANAGAN ROBERT J	Director	Buy	P	49.62	2,000	99,240	2,000	0 to 2 K
Dec 23 2004	MATK	MARTEK BIOSCIENCES ...	FLANAGAN ROBERT J	Director	Buy	P	49.62	2,000	99,240	2,000	0 to 2 K
Dec 17 2004	MATK	MARTEK BIOSCIENCES ...	ABRAMSON DAVID M	SVP of Business Dev ...	Buy	P	49.44	150	7,416	150	0 to 150
Dec 17 2004	MATK	MARTEK BIOSCIENCES ...	ABRAMSON DAVID M	SVP of Business Dev ...	Buy	P	49.43	100	4,943	100	0 to 100
Oct 12 2004	MATK	MARTEK BIOSCIENCES ...	BARKER GEORGE P	Senior Vice Preside ...	Option Exercise	M	14.56	25,000	364,063	0
Oct 12 2004	MATK	MARTEK BIOSCIENCES ...	BARKER GEORGE P	Senior Vice Preside ...	Sell	S	48.63	25,000	1,215,683	0	25 K to 0 (-100.00 %)
Oct 12 2004	MATK	MARTEK BIOSCIENCES ...	BARKER GEORGE P	Senior Vice Preside ...	Buy	M	14.56	25,000	364,063	0	-25,000 to 0 (-100.00 %)
Oct 08 2004	MATK	MARTEK BIOSCIENCES ...	PANEM SANDRA PHD	Director	Option Exercise	M	6.25	9,100	56,875	900
Oct 08 2004	MATK	MARTEK BIOSCIENCES ...	PANEM SANDRA PHD	Director	Buy	M	6.25	9,100	56,875	9,100	0 to 9.1 K
Oct 08 2004	MATK	MARTEK BIOSCIENCES ...	PANEM SANDRA PHD	Director	Option Exercise	M	6.25	9,100	56,875	900
Oct 08 2004	MATK	MARTEK BIOSCIENCES ...	PANEM SANDRA PHD	Director	Buy	M	6.25	9,100	56,875	9,100	0 to 9.1 K
Oct 06 2004	MATK	MARTEK BIOSCIENCES ...	RADMER RICHARD J	Director	Option Exercise	M	14.56	10,000	145,625	0
Oct 06 2004	MATK	MARTEK BIOSCIENCES ...	RADMER RICHARD J	Director	Sell	S	54.81	4,200	230,207	0	4.2 K to 0 (-100.00 %)
Oct 06 2004	MATK	MARTEK BIOSCIENCES ...	RADMER RICHARD J	Director	Sell	S	54.81	10,000	548,111	0	10 K to 0 (-100.00 %)
Oct 06 2004	MATK	MARTEK BIOSCIENCES ...	RADMER RICHARD J	Director	Buy	M	14.56	10,000	145,625	0	-10,000 to 0 (-100.00 %)
Sep 28 2004	MATK	MARTEK BIOSCIENCES ...	MACMASTER JR DOUGLAS J	Director	Option Exercise	M	14.44	5,000	72,185	0
Sep 28 2004	MATK	MARTEK BIOSCIENCES ...	MACMASTER JR DOUGLAS J	Director	Option Exercise	M	19.00	5,000	95,000	0
Sep 28 2004	MATK	MARTEK BIOSCIENCES ...	MACMASTER JR DOUGLAS J	Director	Option Exercise	M	32.88	3,500	115,063	0
Sep 28 2004	MATK	MARTEK BIOSCIENCES ...	MACMASTER JR DOUGLAS J	Director	Sell	S	52.13	13,500	703,746	0	13.5 K to 0 (-100.00 %)
Sep 28 2004	MATK	MARTEK BIOSCIENCES ...	MACMASTER JR DOUGLAS J	Director	Buy	M	14.44	5,000	72,185	0	-5,000 to 0 (-100.00 %)
Sep 28 2004	MATK	MARTEK BIOSCIENCES ...	MACMASTER JR DOUGLAS J	Director	Buy	M	19.00	5,000	95,000	0	-5,000 to 0 (-100.00 %)
Sep 28 2004	MATK	MARTEK BIOSCIENCES ...	MACMASTER JR DOUGLAS J	Director	Buy	M	32.88	3,500	115,063	0	-3,500 to 0 (-100.00 %)
Sep 28 2004	MATK	MARTEK BIOSCIENCES ...	JOHNSON ANN L	Director	Option Exercise	M	6.25	10,000	62,500	0
Sep 28 2004	MATK	MARTEK BIOSCIENCES ...	JOHNSON ANN L	Director	Option Exercise	M	14.44	5,000	72,185	0
Sep 28 2004	MATK	MARTEK BIOSCIENCES ...	JOHNSON ANN L	Director	Option Exercise	M	19.00	5,000	95,000	0

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