GRANT PRIDECO INC

Beneficial ownership report for a passive holder of more than 5% (Schedule 13G) (amendment)

Beneficial ownership report for a passive holder of more than 5% (Schedule 13G) (amendment)

Notification of removal from listing and/or registration on a national securities exchange

Certification of termination of registration of a class of securities (Section 12(b))

Written communication about a business combination transaction (Rule 425)

Written communication about a business combination transaction (Rule 425)

Written communication about a business combination transaction (Rule 425)

5.04,9.01

Written communication about a business combination transaction (Rule 425)

Additional Information for Proxy Statement/ Votes

Annual report pursuant to Section 13 or 15(d)

2.02,8.01,9.01

Written communication about a business combination transaction (Rule 425)

Additional Information for Proxy Statement/ Votes

Departure of Directors or Principal Officers; Election of Directors; Appointment of Principal Officers

7.01

8.01,9.01

Written communication about a business combination transaction (Rule 425)

Entry into a Material Definitive Agreement

Written communication about a business combination transaction (Rule 425)

Written communication about a business combination transaction (Rule 425)

1.01,8.01,9.01

Written communication about a business combination transaction (Rule 425)

Written communication about a business combination transaction (Rule 425)

Written communication about a business combination transaction (Rule 425)

Written communication about a business combination transaction (Rule 425)

Departure of Directors or Principal Officers; Election of Directors; Appointment of Principal Officers

General form for quarterly reports under Section 13 or 15(d)

Entry into a Material Definitive Agreement

Results of Operations and Financial Condition

Annual report pursuant to Section 13 or 15(d) (amendment)

General form for quarterly reports under Section 13 or 15(d)

Results of Operations and Financial Condition

Annual reports of employee stock purchase savings and similar plans pursuant to Section 15(d)

General form for quarterly reports under Section 13 or 15(d)

Results of Operations and Financial Condition

1.01,9.01

Annual Report Scanned (Paper)

Entry into a Material Definitive Agreement

Definitive Proxy Statement

Registration statement under Securities Act of 1933 to be offered to employees pursuant to certain plans

Annual report pursuant to Section 13 or 15(d)

Departure of Directors or Principal Officers; Election of Directors; Appointment of Principal Officers

5.02

2.02,9.01

General form for quarterly reports under Section 13 or 15(d)

2.02,9.01

Annual report pursuant to Section 13 or 15(d) (amendment)

1.01,9.01

General form for quarterly reports under Section 13 or 15(d)

2.02,9.01

Annual reports of employee stock purchase savings and similar plans pursuant to Section 15(d)

General form for quarterly reports under Section 13 or 15(d)

Annual Report Scanned (Paper)

Definitive Proxy Statement

Annual report pursuant to Section 13 or 15(d)

Prospectus Supplement for Primary Offering

Correspondence with the SEC

General form for quarterly reports under Section 13 or 15(d) (amendment)

General form for quarterly reports under Section 13 or 15(d) (amendment)

General form for quarterly reports under Section 13 or 15(d) (amendment)

General form for quarterly reports under Section 13 or 15(d) (amendment)

Registration statement under Securities Act of 1933 (amendment)

Correspondence with the SEC

Correspondence with the SEC

Letter from the SEC

General form for quarterly reports under Section 13 or 15(d)

Registration statement under Securities Act of 1933

General form for quarterly reports under Section 13 or 15(d)

Annual reports of employee stock purchase savings and similar plans pursuant to Section 15(d)

General form for quarterly reports under Section 13 or 15(d)

Annual Report Scanned (Paper)

Definitive Proxy Statement

Annual report pursuant to Section 13 or 15(d)

Notification of late filing of Form 10-K

Registration statement under Securities Act of 1933 to be offered to employees pursuant to certain plans

Annual reports of employee stock purchase savings and similar plans pursuant to Section 15(d)

Annual Report Scanned (Paper)

Definitive Proxy Statement

Annual reports of employee stock purchase savings and similar plans pursuant to Section 15(d)

Annual Report Scanned (Paper)

Prospectus filed under Rule 424(b)(1)

Definitive Proxy Statement

Additional Information for Proxy Statement/ Votes

Annual reports of employee stock purchase savings and similar plans pursuant to Section 15(d)

Annual Report Scanned (Paper)

Definitive Proxy Statement

Annual reports of employee stock purchase savings and similar plans pursuant to Section 15(d)

Definitive Proxy Statement

REID JOSEPH E

MCSHANE MICHAEL

FITZGERALD MATTHEW D

DEANE JOHN D

BLACK DAVID

BOANE GREG L

CHOYCE PHILIP A

Breihan James W

Kneen Quintin

BUTTERS DAVID J

FRIED ELIOT M

HENDRIX DENNIS R

LAYMAN HAROLD E

MOSES ROBERT K JR

TRICE DAVID A

HALL GORDON T

FRIED ELIOT M

BLACK DAVID