GRANT PRIDECO INC

CUSIP: 38821G101 Class: COM

E. Ohman J:or Asset Management AB's Holding History (CIK: 0002009396)

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

Q1 2008
Shares 1,400 Value ($000) $69 Avg Close — Range —
Q4 2007
Shares 1,400 Value ($000) $78 Avg Close — Range —
Q3 2007
Shares 1,400 Value ($000) $76 Avg Close — Range —
Q2 2007
Shares 1,400 Value ($000) $75 Avg Close — Range —
Q1 2007
Shares 1,400 Value ($000) $70 Avg Close — Range —
Q4 2006
Shares 1,400 Value ($000) $56 Avg Close — Range —