ORION POWER HOLDINGS INC

Related Filers (109)

Ownership (28)

4
Wednesday, 3/6/2002
CONSTELLATION ENERGY GROUP INC: Statement of changes in beneficial ownership of securities
4
Wednesday, 3/6/2002
CROOKE EDWARD A: Statement of changes in beneficial ownership of securities
SC 13G
Thursday, 2/14/2002
CONSTELLATION ENERGY GROUP INC: Major Shareholders
SC 13D/A
Friday, 9/28/2001
GOLDMAN SACHS GROUP INC/: Major Shareholders
4
Monday, 6/11/2001
CONSTELLATION ENERGY GROUP INC: Statement of changes in beneficial ownership of securities
4
Monday, 6/11/2001
CONSTELLATION ENTERPRISES INC: Statement of changes in beneficial ownership of securities
4
Monday, 6/11/2001
CROOKE EDWARD A: Statement of changes in beneficial ownership of securities
SC 13G
Wednesday, 3/28/2001
MITSUBISHI CORP: Major Shareholders
SC 13G
Wednesday, 3/28/2001
TOYKO ELECTRIC POWER CO: Major Shareholders
SC 13G
Wednesday, 2/14/2001
CONSTELLATION ENERGY GROUP INC: Major Shareholders
4
Wednesday, 1/10/2001
LONDAL DOUGLAS F: Statement of changes in beneficial ownership of securities
4
Wednesday, 1/10/2001
GOLDMAN SACHS GROUP INC/: Statement of changes in beneficial ownership of securities
4
Wednesday, 1/10/2001
FRIEDMAN RICHARD A: Statement of changes in beneficial ownership of securities
4
Wednesday, 1/10/2001
OTOOLE TERENCE M: Statement of changes in beneficial ownership of securities
4
Monday, 12/11/2000
LONDAL DOUGLAS F: Statement of changes in beneficial ownership of securities
4
Monday, 12/11/2000
GOLDMAN SACHS GROUP INC: Statement of changes in beneficial ownership of securities
4
Monday, 12/11/2000
FRIEDMAN RICHARD A: Statement of changes in beneficial ownership of securities
4
Monday, 12/11/2000
OTOOLE TERENCE M: Statement of changes in beneficial ownership of securities
SC 13D
Monday, 12/11/2000
GOLDMAN SACHS GROUP INC: Major Shareholders
4
Friday, 12/8/2000
CONSTELLATION ENERGY GROUP INC: Statement of changes in beneficial ownership of securities
4
Friday, 12/8/2000
CROOKE EDWARD A: Statement of changes in beneficial ownership of securities
4
Friday, 12/8/2000
CONSTELLATION ENTERPRISES INC: Statement of changes in beneficial ownership of securities
3
Monday, 11/13/2000
CONSTELLATION ENERGY GROUP INC: Initial statement of beneficial ownership of securities
3
Monday, 11/13/2000
CONSTELLATION ENTERPRISES INC: Initial statement of beneficial ownership of securities
3
Monday, 11/13/2000
CONSTELLATION ENERGY GROUP INC: Initial statement of beneficial ownership of securities
3
Monday, 11/13/2000
CROOKE EDWARD A: Initial statement of beneficial ownership of securities
3
Monday, 11/13/2000
CONSTELLATION ENTERPRISES INC: Initial statement of beneficial ownership of securities
3
Monday, 11/13/2000
CROOKE EDWARD A: Initial statement of beneficial ownership of securities
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Prospectus (19)

424B5
Thursday, 12/16/2004
Prospectus filed pursuant to Rule 424(b)(5)
424B3
Thursday, 12/11/2003
Prospectus filed pursuant to Rule 424(b)(3)
S-4/A
Wednesday, 12/10/2003
Registration of securities issued in business combination transactions
S-3/A
Wednesday, 12/10/2003
Registration statement for specified transactions by certain issuers
S-4
Thursday, 7/24/2003
Registration of securities issued in business combination transactions
S-4/A
Tuesday, 6/19/2001
Registration of securities issued in business combination transactions
424B3
Friday, 6/1/2001
Prospectus filed pursuant to Rule 424(b)(3)
424B3
Friday, 6/1/2001
Prospectus filed pursuant to Rule 424(b)(3)
S-1/A
Thursday, 5/31/2001
General form of registration statement for all companies including face-amount certificate companies
S-1/A
Friday, 5/18/2001
General form of registration statement for all companies including face-amount certificate companies
S-1
Friday, 5/11/2001
General form of registration statement for all companies including face-amount certificate companies
S-8
Thursday, 5/10/2001
Initial registration statement for securities to be offered to employees pursuant to employee benefit plans
S-4
Friday, 3/16/2001
Registration of securities issued in business combination transactions
424B3
Tuesday, 11/14/2000
Prospectus filed pursuant to Rule 424(b)(3)
S-1MEF
Tuesday, 11/14/2000
A new registration statement filed under Rule 462(b) to add securities to a prior related effective registration statement filed on Form S-1
S-1/A
Monday, 11/13/2000
General form of registration statement for all companies including face-amount certificate companies
S-1/A
Friday, 10/27/2000
General form of registration statement for all companies including face-amount certificate companies
S-1/A
Thursday, 10/5/2000
General form of registration statement for all companies including face-amount certificate companies
S-1
Friday, 8/18/2000
General form of registration statement for all companies including face-amount certificate companies
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