AHT CORP
Related Filers (21)
- FRANKLIN RESOURCES INC (2)
- CAPITAL RESEARCH & MANAGEMENT CO (2)
- CYBEAR INC (2)
- DIMENSIONAL FUND ADVISORS INC (2)
- 21ST CENTURY COMMUNICATIONS PARTNERS L P (1)
- INVESCO PLC (1)
- DRESDNER BANK AG /FI (1)
- RCM CAPITAL MANAGEMENT L L C (1)
- PUTNAM INVESTMENTS INC (1)
- PBHG FUNDS INC / (1)
- HOCHBERG STEVEN (1)
- PILGRIM BAXTER & ASSOCIATES LTD /DE/ /ADV (1)
- CAPITAL GROUP COMPANIES INC ET AL (1)
- WELLINGTON MANAGEMENT CO LLP (1)
- NORTHWESTERN MUTUAL LIFE INSURANCE CO (1)
- NATIONSBANK CORP/FA (1)
- EDELSON JONATHAN MD (1)
- RS INVESTMENT MANAGEMENT CO LLC (1)
- KNOTT DAVID M (1)
- TUDOR INVESTMENT CORP ET AL (1)
- BIOSHIELD TECHNOLOGIES INC (1)
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Financials (21)
10-Q
Monday, 8/14/2000
Quarterly Report for period ending 2000-06-30
10-Q
Friday, 5/12/2000
Quarterly Report for period ending 2000-03-31
10-K
Friday, 4/14/2000
Annual Report for period ending 1999-12-31
NT 10-K
Thursday, 3/30/2000
Notice under Rule 12b25 of inability to timely file all or part of a Form 10-K, 10-KSB, or 10-KT for period ending 1999-12-31
10-Q
Monday, 11/15/1999
Quarterly Report for period ending 1999-09-30
10-Q
Friday, 8/13/1999
Quarterly Report for period ending 1999-06-30
10-K/A
Thursday, 6/10/1999
Annual Report for period ending 1998-12-31
10-Q
Monday, 5/17/1999
Quarterly Report for period ending 1999-03-31
10-K
Friday, 4/2/1999
Annual Report for period ending 1998-12-31
NT 10-K
Thursday, 4/1/1999
Notice under Rule 12b25 of inability to timely file all or part of a Form 10-K, 10-KSB, or 10-KT for period ending 1998-12-31
10-Q
Monday, 11/16/1998
Quarterly Report for period ending 1998-09-30
10-Q
Thursday, 8/13/1998
Quarterly Report for period ending 1998-06-30
10-Q
Friday, 5/15/1998
Quarterly Report for period ending 1998-03-31
NT 10-K
Wednesday, 4/1/1998
Notice under Rule 12b25 of inability to timely file all or part of a Form 10-K, 10-KSB, or 10-KT for period ending 1997-12-31
10-K
Wednesday, 4/1/1998
Annual Report for period ending 1997-12-31
10-Q
Friday, 11/14/1997
Quarterly Report for period ending 1997-09-30
10-Q
Thursday, 8/14/1997
Quarterly Report for period ending 1997-06-30
10-Q
Thursday, 5/15/1997
Quarterly Report for period ending 1997-03-31
10-K
Monday, 3/31/1997
Annual Report for period ending 1996-12-31
10-Q/A
Tuesday, 11/19/1996
Quarterly Report for period ending 1996-09-30
10-Q
Monday, 11/18/1996
Quarterly Report for period ending 1996-09-30
News (2)
8-K
Tuesday, 6/1/1999
Current report filing
8-K
Tuesday, 2/16/1999
Current report filing
Other (2)
REVOKED
Tuesday, 3/11/2008
None
10-K405/A
Thursday, 6/22/2000
Annual Report with disclosure of delinquent filers
Ownership (52)
SC 13G/A
Friday, 2/6/2004
DIMENSIONAL FUND ADVISORS INC: Major Shareholders
SC 13G/A
Monday, 2/10/2003
DIMENSIONAL FUND ADVISORS INC: Major Shareholders
SC 13G/A
Monday, 2/10/2003
DIMENSIONAL FUND ADVISORS INC: Major Shareholders
SC 13G/A
Tuesday, 2/12/2002
DIMENSIONAL FUND ADVISORS INC: Major Shareholders
SC 13G
Friday, 2/2/2001
DIMENSIONAL FUND ADVISORS INC: Major Shareholders
SC 13G/A
Thursday, 4/27/2000
TUDOR INVESTMENT CORP ET AL: Major Shareholders
SC 13D
Thursday, 4/6/2000
CYBEAR INC: Major Shareholders
3
Thursday, 4/6/2000
CYBEAR INC: Initial statement of beneficial ownership of securities
SC 13G/A
Friday, 2/11/2000
KNOTT DAVID M: Major Shareholders
SC 13G/A
Thursday, 2/10/2000
TUDOR INVESTMENT CORP ET AL: Major Shareholders
SC 13G
Thursday, 2/3/2000
DIMENSIONAL FUND ADVISORS INC: Major Shareholders
SC 13G
Thursday, 2/3/2000
DIMENSIONAL FUND ADVISORS INC: Major Shareholders
SC 13G/A
Tuesday, 5/4/1999
RS INVESTMENT MANAGEMENT CO LLC: Major Shareholders
SC 13G
Friday, 3/26/1999
TUDOR INVESTMENT CORP ET AL: Major Shareholders
SC 13G
Friday, 3/5/1999
NATIONSBANK CORP/FA: Major Shareholders
SC 13G/A
Friday, 3/5/1999
EDELSON JONATHAN MD: Major Shareholders
SC 13G/A
Friday, 2/12/1999
EDELSON JONATHAN MD: Major Shareholders
SC 13G
Thursday, 2/11/1999
CAPITAL RESEARCH & MANAGEMENT CO: Major Shareholders
SC 13G
Thursday, 2/11/1999
DIMENSIONAL FUND ADVISORS INC: Major Shareholders
SC 13G
Monday, 2/8/1999
NATIONSBANK CORP/FA: Major Shareholders
SC 13G/A
Wednesday, 2/3/1999
NORTHWESTERN MUTUAL LIFE INSURANCE CO: Major Shareholders
SC 13G
Wednesday, 2/3/1999
KNOTT DAVID M: Major Shareholders
SC 13G/A
Friday, 1/8/1999
FRANKLIN RESOURCES INC: Major Shareholders
SC 13G
Friday, 12/4/1998
KNOTT DAVID M: Major Shareholders
SC 13G/A
Monday, 8/10/1998
WELLINGTON MANAGEMENT CO LLP: Major Shareholders
SC 13G/A
Friday, 7/10/1998
FRANKLIN RESOURCES INC: Major Shareholders
SC 13G/A
Friday, 7/10/1998
WELLINGTON MANAGEMENT CO LLP: Major Shareholders
SC 13G
Thursday, 7/9/1998
CAPITAL RESEARCH & MANAGEMENT CO: Major Shareholders
SC 13G
Thursday, 7/9/1998
CAPITAL GROUP COMPANIES INC ET AL: Major Shareholders
SC 13G/A
Wednesday, 6/10/1998
PILGRIM BAXTER & ASSOCIATES LTD /DE/ /ADV: Major Shareholders
SC 13G
Thursday, 4/9/1998
WELLINGTON MANAGEMENT CO LLP: Major Shareholders
SC 13G
Tuesday, 4/7/1998
HOCHBERG STEVEN: Major Shareholders
SC 13G
Tuesday, 4/7/1998
EDELSON JONATHAN MD: Major Shareholders
SC 13G/A
Thursday, 2/12/1998
PILGRIM BAXTER & ASSOCIATES LTD /DE/ /ADV: Major Shareholders
SC 13G
Wednesday, 2/11/1998
CAPITAL GROUP COMPANIES INC ET AL: Major Shareholders
SC 13G/A
Tuesday, 2/10/1998
PBHG FUNDS INC /: Major Shareholders
SC 13G/A
Tuesday, 2/10/1998
PILGRIM BAXTER & ASSOCIATES LTD /DE/ /ADV: Major Shareholders
SC 13G/A
Friday, 2/6/1998
PUTNAM INVESTMENTS INC: Major Shareholders
SC 13G
Wednesday, 2/4/1998
NORTHWESTERN MUTUAL LIFE INSURANCE CO: Major Shareholders
SC 13G/A
Monday, 1/26/1998
FRANKLIN RESOURCES INC: Major Shareholders
SC 13G
Tuesday, 1/20/1998
PUTNAM INVESTMENTS INC: Major Shareholders
SC 13G
Wednesday, 11/12/1997
FRANKLIN RESOURCES INC: Major Shareholders
SC 13G/A
Monday, 11/10/1997
DRESDNER BANK AG /FI: Major Shareholders
SC 13G/A
Monday, 11/10/1997
RCM CAPITAL MANAGEMENT L L C: Major Shareholders
SC 13G
Tuesday, 3/11/1997
HOCHBERG STEVEN: Major Shareholders
SC 13G
Tuesday, 3/11/1997
EDELSON JONATHAN MD: Major Shareholders
SC 13G/A
Monday, 3/10/1997
DRESDNER BANK AG /FI: Major Shareholders
SC 13G
Monday, 3/10/1997
INVESCO PLC: Major Shareholders
SC 13G/A
Monday, 3/10/1997
RCM CAPITAL MANAGEMENT L L C: Major Shareholders
SC 13G
Friday, 2/14/1997
21ST CENTURY COMMUNICATIONS PARTNERS L P: Major Shareholders
SC 13G
Thursday, 2/13/1997
DRESDNER BANK AG /FI: Major Shareholders
SC 13G
Thursday, 2/6/1997
RCM CAPITAL MANAGEMENT L L C: Major Shareholders
Prospectus (13)
425
Monday, 8/14/2000
Filing under Securities Act Rule 425 of certain prospectuses and communications in connection with business combination transactions
425
Thursday, 7/13/2000
Filing under Securities Act Rule 425 of certain prospectuses and communications in connection with business combination transactions
425
Monday, 7/3/2000
Filing under Securities Act Rule 425 of certain prospectuses and communications in connection with business combination transactions
425
Monday, 7/3/2000
Filing under Securities Act Rule 425 of certain prospectuses and communications in connection with business combination transactions
S-8
Friday, 7/23/1999
Initial registration statement for securities to be offered to employees pursuant to employee benefit plans
424B4
Wednesday, 10/8/1997
Prospectus filed pursuant to Rule 424(b)(4)
S-1/A
Friday, 10/3/1997
General form of registration statement for all companies including face-amount certificate companies
S-1/A
Tuesday, 9/30/1997
General form of registration statement for all companies including face-amount certificate companies
S-8
Wednesday, 11/27/1996
Initial registration statement for securities to be offered to employees pursuant to employee benefit plans
S-8
Wednesday, 11/27/1996
Initial registration statement for securities to be offered to employees pursuant to employee benefit plans
424B4
Thursday, 10/3/1996
Prospectus filed pursuant to Rule 424(b)(4)
S-1MEF
Wednesday, 10/2/1996
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
Wednesday, 10/2/1996
General form of registration statement for all companies including face-amount certificate companies
Proxies (5)
DEF 14A
Thursday, 6/22/2000
Definitive proxy statements
PRE 14A
Friday, 6/9/2000
Preliminary proxy statement not related to a contested matter or merger/acquisition
DEF 14A
Wednesday, 6/9/1999
Definitive proxy statements
DEF 14A
Friday, 6/5/1998
Definitive proxy statements
DEF 14A
Wednesday, 4/30/1997
Definitive proxy statements