GRANT PRIDECO INC

CUSIP: 38821G101 Class: COM

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

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

Q4 2007
Shares 13,550 Value ($000) $538 Avg Close — Range —
Q3 2007
Shares 19,309 Value ($000) $1,052 Avg Close — Range —
Q2 2007
Shares 18,927 Value ($000) $1,018 Avg Close — Range —
Q1 2007
Shares 5,490 Value ($000) $273 Avg Close — Range —
Q4 2006
Shares 13,550 Value ($000) $538 Avg Close — Range —