ROBERT H MAYER Insider Trading Transactions

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General | Insider Transactions | Monthly Overview

Get the latest insider transactions of ROBERT H MAYER. ROBERT H MAYER is Director in MARTEK BIOSCIENCES CORP ($MATK).

Latest Insider Trading Transactions of ROBERT H MAYER

1 Week2 Weeks1 Month3 Months6 Months1 Year2 Years
No. of Purchases0000000
Value of Purchases ($)0000000
No. of Sales0000000
Value of Sales ($)0000000

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DateTickerCompanyOwnerRelationship Transaction Code Cost ($) Shares Transaction Value ($) Total Shares % Holdings
Mar 01 2011MATKMARTEK BIOSCIENCES ...MAYER ROBERT HDirectorOption ExerciseM0.002,53300
Mar 01 2011MATKMARTEK BIOSCIENCES ...MAYER ROBERT HDirectorSellD31.506,048190,51206 K to 0 (-100.00 %)
Mar 01 2011MATKMARTEK BIOSCIENCES ...MAYER ROBERT HDirectorGrantA0.006,04806,0480 to 6 K
Feb 25 2011MATKMARTEK BIOSCIENCES ...MAYER ROBERT HDirectorSellU31.503,847121,18103.8 K to 0 (-100.00 %)
Mar 22 2010MATKMARTEK BIOSCIENCES ...MAYER ROBERT HDirectorOption ExerciseA0.002,53302,533
Mar 23 2009MATKMARTEK BIOSCIENCES ...MAYER ROBERT HDirectorOption ExerciseA0.003,51503,515
Mar 16 2009MATKMARTEK BIOSCIENCES ...MAYER ROBERT HDirectorOption ExerciseM0.002,03400
Mar 16 2009MATKMARTEK BIOSCIENCES ...MAYER ROBERT HDirectorBuyM0.002,03403,8471.8 K to 3.8 K (+112.19 %)
Mar 09 2009MATKMARTEK BIOSCIENCES ...MAYER ROBERT HDirectorOption ExerciseM0.001,81300
Mar 09 2009MATKMARTEK BIOSCIENCES ...MAYER ROBERT HDirectorBuyM0.001,81301,8130 to 1.8 K
Mar 17 2008MATKMARTEK BIOSCIENCES ...MAYER ROBERT HDirectorOption ExerciseA0.002,03402,034
Jan 22 2008MATKMARTEK BIOSCIENCES ...MAYER ROBERT HDirectorOption ExerciseA0.001,81301,813

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