NIAGARA MOHAWK HOLDINGS INC/NY

Related Filers (6)

Prospectus (11)

425
Thursday, 1/18/2001
Filing under Securities Act Rule 425 of certain prospectuses and communications in connection with business combination transactions
425
Wednesday, 1/17/2001
Filing under Securities Act Rule 425 of certain prospectuses and communications in connection with business combination transactions
425
Wednesday, 11/29/2000
Filing under Securities Act Rule 425 of certain prospectuses and communications in connection with business combination transactions
425
Wednesday, 11/22/2000
Filing under Securities Act Rule 425 of certain prospectuses and communications in connection with business combination transactions
425
Wednesday, 10/4/2000
Filing under Securities Act Rule 425 of certain prospectuses and communications in connection with business combination transactions
425
Friday, 9/15/2000
Filing under Securities Act Rule 425 of certain prospectuses and communications in connection with business combination transactions
425
Thursday, 9/14/2000
Filing under Securities Act Rule 425 of certain prospectuses and communications in connection with business combination transactions
425
Tuesday, 9/5/2000
Filing under Securities Act Rule 425 of certain prospectuses and communications in connection with business combination transactions
424B3
Thursday, 4/1/1999
Prospectus filed pursuant to Rule 424(b)(3)
S-8 POS
Tuesday, 3/23/1999
Post-effective amendment to a S-8 registration statement
S-3/A
Friday, 3/19/1999
Registration statement for specified transactions by certain issuers
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Proxies (11)

DEF 14A
Friday, 3/30/2001
Definitive proxy statements
DEFA14A
Thursday, 1/18/2001
Definitive additional proxy soliciting materials including Rule 14(a)(12) material. Note: Submission type DEFA14A can be filed as part of Form 8-K. For filers subject to 8-K filing requirements, we recommend the use of the 8-K combined form type as the easiest method for fulfilling your filing requirement for both forms.
DEF 14A
Wednesday, 1/17/2001
Definitive proxy statements
DEFM14A
Friday, 12/8/2000
Definitive proxy statement relating to a merger, acquisition, or disposition
DEFA14A
Friday, 9/29/2000
Definitive additional proxy soliciting materials including Rule 14(a)(12) material. Note: Submission type DEFA14A can be filed as part of Form 8-K. For filers subject to 8-K filing requirements, we recommend the use of the 8-K combined form type as the easiest method for fulfilling your filing requirement for both forms.
DEFA14A
Thursday, 9/21/2000
Definitive additional proxy soliciting materials including Rule 14(a)(12) material. Note: Submission type DEFA14A can be filed as part of Form 8-K. For filers subject to 8-K filing requirements, we recommend the use of the 8-K combined form type as the easiest method for fulfilling your filing requirement for both forms.
DEFA14A
Tuesday, 9/19/2000
Definitive additional proxy soliciting materials including Rule 14(a)(12) material. Note: Submission type DEFA14A can be filed as part of Form 8-K. For filers subject to 8-K filing requirements, we recommend the use of the 8-K combined form type as the easiest method for fulfilling your filing requirement for both forms.
DEFA14A
Monday, 9/18/2000
Definitive additional proxy soliciting materials including Rule 14(a)(12) material. Note: Submission type DEFA14A can be filed as part of Form 8-K. For filers subject to 8-K filing requirements, we recommend the use of the 8-K combined form type as the easiest method for fulfilling your filing requirement for both forms.
DEFA14A
Tuesday, 9/5/2000
Definitive additional proxy soliciting materials including Rule 14(a)(12) material. Note: Submission type DEFA14A can be filed as part of Form 8-K. For filers subject to 8-K filing requirements, we recommend the use of the 8-K combined form type as the easiest method for fulfilling your filing requirement for both forms.
DEF 14A
Thursday, 3/30/2000
Definitive proxy statements
DEF 14A
Wednesday, 3/31/1999
Definitive proxy statements
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