MARTEK BIOSCIENCES CORP

CUSIP: 572901106 Class: COMMON STOCK

GLENMEDE TRUST CO NA's Holding History (CIK: 0000314949)

Note: Option positions (PUT/CALL) are excluded.

Q3 2010
Shares 7,020 Value ($000) $158 Avg Close — Range —
Q2 2010
Shares 7,020 Value ($000) $166 Avg Close — Range —
Q1 2010
Shares 8,153 Value ($000) $183 Avg Close — Range —
Q3 2009
Shares 18,340 Value ($000) $414 Avg Close — Range —
Q2 2009
Shares 29,466 Value ($000) $623 Avg Close — Range —
Q1 2009
Shares 31,186 Value ($000) $569 Avg Close — Range —
Q4 2008
Shares 26,186 Value ($000) $793 Avg Close — Range —
Q3 2008
Shares 29,174 Value ($000) $916 Avg Close — Range —
Q2 2008
Shares 25,289 Value ($000) $852 Avg Close — Range —
Q1 2008
Shares 22,602 Value ($000) $690 Avg Close — Range —
Q3 2007
Shares 13,862 Value ($000) $402 Avg Close — Range —
Q2 2007
Shares 13,862 Value ($000) $359 Avg Close — Range —