NORTHERN TECHNOLOGIES INTERNATIONAL CORP

Related Filers (38)

Financials (68)

10-Q
Thursday, 1/11/2024
Quarterly Report for period ending 2023-11-30
10-K
Tuesday, 11/21/2023
Annual Report for period ending 2023-08-31
10-Q/A
Tuesday, 11/21/2023
Quarterly Report for period ending 2023-02-28
10-Q/A
Tuesday, 11/21/2023
Quarterly Report for period ending 2023-05-31
10-Q
Thursday, 7/13/2023
Quarterly Report for period ending 2023-05-31
10-Q
Thursday, 4/13/2023
Quarterly Report for period ending 2023-02-28
10-Q
Thursday, 1/12/2023
Quarterly Report for period ending 2022-11-30
10-K
Tuesday, 11/15/2022
Annual Report for period ending 2022-08-31
10-Q
Friday, 7/8/2022
Quarterly Report for period ending 2022-05-31
10-Q
Friday, 4/8/2022
Quarterly Report for period ending 2022-02-28
10-Q
Wednesday, 1/12/2022
Quarterly Report for period ending 2021-11-30
10-K
Friday, 11/19/2021
Annual Report for period ending 2021-08-31
10-Q
Friday, 7/9/2021
Quarterly Report for period ending 2021-05-31
10-Q
Friday, 4/9/2021
Quarterly Report for period ending 2021-02-28
10-Q
Friday, 1/8/2021
Quarterly Report for period ending 2020-11-30
10-K
Friday, 11/13/2020
Annual Report for period ending 2020-08-31
10-Q
Thursday, 7/9/2020
Quarterly Report for period ending 2020-05-31
10-Q
Wednesday, 4/8/2020
Quarterly Report for period ending 2020-02-29
10-Q
Wednesday, 1/8/2020
Quarterly Report for period ending 2019-11-30
10-K
Wednesday, 11/13/2019
Annual Report for period ending 2019-08-31
10-Q
Tuesday, 7/9/2019
Quarterly Report for period ending 2019-05-31
10-Q
Monday, 4/8/2019
Quarterly Report for period ending 2019-02-28
10-Q
Wednesday, 1/9/2019
Quarterly Report for period ending 2018-11-30
10-K
Tuesday, 11/13/2018
Annual Report for period ending 2018-08-31
10-Q
Monday, 7/16/2018
Quarterly Report for period ending 2018-05-31
10-Q
Monday, 4/16/2018
Quarterly Report for period ending 2018-02-28
10-Q
Friday, 1/12/2018
Quarterly Report for period ending 2017-11-30
10-K
Tuesday, 11/21/2017
Annual Report for period ending 2017-08-31
10-Q
Friday, 7/14/2017
Quarterly Report for period ending 2017-05-31
10-Q
Tuesday, 4/11/2017
Quarterly Report for period ending 2017-02-28
10-Q
Tuesday, 1/17/2017
Quarterly Report for period ending 2016-11-30
10-K
Tuesday, 11/22/2016
Annual Report for period ending 2016-08-31
10-Q
Monday, 7/11/2016
Quarterly Report for period ending 2016-05-31
10-Q
Monday, 4/11/2016
Quarterly Report for period ending 2016-02-29
10-Q
Monday, 1/11/2016
Quarterly Report for period ending 2015-11-30
10-K
Friday, 11/13/2015
Annual Report for period ending 2015-08-31
10-Q
Friday, 7/10/2015
Quarterly Report for period ending 2015-05-31
10-Q
Thursday, 4/9/2015
Quarterly Report for period ending 2015-02-28
10-Q
Thursday, 1/8/2015
Quarterly Report for period ending 2014-11-30
10-K
Friday, 11/14/2014
Annual Report for period ending 2014-08-31
10-Q
Friday, 7/11/2014
Quarterly Report for period ending 2014-05-31
10-Q
Friday, 4/11/2014
Quarterly Report for period ending 2014-02-28
10-Q
Friday, 1/10/2014
Quarterly Report for period ending 2013-11-30
10-K
Friday, 11/22/2013
Annual Report for period ending 2013-08-31
10-Q
Friday, 7/12/2013
Quarterly Report for period ending 2013-05-31
10-Q
Friday, 4/12/2013
Quarterly Report for period ending 2013-02-28
10-Q
Monday, 1/14/2013
Quarterly Report for period ending 2012-11-30
10-K
Wednesday, 11/21/2012
Annual Report for period ending 2012-08-31
10-Q
Friday, 7/13/2012
Quarterly Report for period ending 2012-05-31
10-Q
Thursday, 4/12/2012
Quarterly Report for period ending 2012-02-29
10-Q
Friday, 1/13/2012
Quarterly Report for period ending 2011-11-30
10-K
Monday, 11/21/2011
Annual Report for period ending 2011-08-31
10-Q
Wednesday, 7/13/2011
Quarterly Report for period ending 2011-05-31
10-Q
Wednesday, 4/13/2011
Quarterly Report for period ending 2011-02-28
10-Q
Wednesday, 1/12/2011
Quarterly Report for period ending 2010-11-30
10-K
Tuesday, 11/23/2010
Annual Report for period ending 2010-08-31
10-Q
Wednesday, 7/14/2010
Quarterly Report for period ending 2010-05-31
10-Q
Tuesday, 4/13/2010
Quarterly Report for period ending 2010-02-28
10-Q
Thursday, 1/14/2010
Quarterly Report for period ending 2009-11-30
10-K
Monday, 11/30/2009
Annual Report for period ending 2009-08-31
10-Q
Tuesday, 7/14/2009
Quarterly Report for period ending 2009-05-31
10-Q
Tuesday, 4/14/2009
Quarterly Report for period ending 2009-02-28
10-Q
Wednesday, 1/14/2009
Quarterly Report for period ending 2008-11-30
10-K
Tuesday, 11/25/2008
Annual Report for period ending 2008-08-31
NT 10-Q
Tuesday, 4/12/2005
Notice under Rule 12b25 of inability to timely file all or part of a form 10-Q or 10-QSB for period ending 2005-02-28
NT 10-Q
Monday, 1/13/2003
Notice under Rule 12b25 of inability to timely file all or part of a form 10-Q or 10-QSB for period ending 2002-11-30
10-Q
Friday, 1/12/2001
Quarterly Report for period ending 2000-11-30
10-Q
Friday, 7/11/1997
Quarterly Report for period ending 1997-05-31
Show More

News (139)

8-K
Friday, 1/19/2024
Current report filing
8-K
Thursday, 1/11/2024
Current report filing
8-K
Tuesday, 11/21/2023
Current report filing
8-K
Tuesday, 11/21/2023
Current report filing
8-K
Thursday, 7/13/2023
Current report filing
8-K
Thursday, 4/13/2023
Current report filing
8-K
Monday, 1/23/2023
Current report filing
8-K
Thursday, 1/12/2023
Current report filing
8-K
Wednesday, 11/16/2022
Current report filing
8-K
Monday, 11/14/2022
Current report filing
8-K
Thursday, 7/7/2022
Current report filing
8-K
Thursday, 4/7/2022
Current report filing
8-K
Friday, 1/21/2022
Current report filing
8-K
Friday, 1/7/2022
Current report filing
8-K
Thursday, 1/6/2022
Current report filing
8-K
Wednesday, 11/17/2021
Current report filing
8-K
Wednesday, 9/22/2021
Current report filing
8-K
Tuesday, 8/10/2021
Current report filing
8-K
Thursday, 7/8/2021
Current report filing
8-K
Thursday, 7/8/2021
Current report filing
8-K
Thursday, 4/8/2021
Current report filing
8-K
Friday, 1/15/2021
Current report filing
8-K
Thursday, 1/7/2021
Current report filing
8-K
Tuesday, 12/29/2020
Current report filing
8-K
Thursday, 11/12/2020
Current report filing
8-K
Wednesday, 7/8/2020
Current report filing
8-K
Tuesday, 4/7/2020
Current report filing
8-K
Tuesday, 1/21/2020
Current report filing
8-K
Tuesday, 1/7/2020
Current report filing
8-K
Tuesday, 11/12/2019
Current report filing
8-K
Wednesday, 10/23/2019
Current report filing
8-K
Tuesday, 7/9/2019
Current report filing
8-K
Monday, 6/3/2019
Current report filing
8-K
Friday, 4/5/2019
Current report filing
8-K
Friday, 1/25/2019
Current report filing
8-K
Tuesday, 1/8/2019
Current report filing
8-K
Tuesday, 11/13/2018
Current report filing
8-K
Thursday, 7/12/2018
Current report filing
8-K
Thursday, 4/12/2018
Current report filing
8-K
Monday, 1/22/2018
Current report filing
8-K
Tuesday, 1/16/2018
Current report filing
8-K
Thursday, 1/11/2018
Current report filing
8-K
Monday, 11/20/2017
Current report filing
8-K
Thursday, 9/21/2017
Current report filing
8-K
Thursday, 7/13/2017
Current report filing
8-K
Thursday, 4/6/2017
Current report filing
8-K
Tuesday, 1/17/2017
Current report filing
8-K
Thursday, 1/12/2017
Current report filing
8-K
Tuesday, 11/15/2016
Current report filing
8-K
Monday, 7/18/2016
Current report filing
8-K
Thursday, 7/7/2016
Current report filing
8-K
Thursday, 4/7/2016
Current report filing
8-K
Friday, 1/15/2016
Current report filing
8-K
Friday, 1/15/2016
Current report filing
8-K
Thursday, 1/7/2016
Current report filing
8-K
Friday, 11/6/2015
Current report filing
8-K
Thursday, 7/9/2015
Current report filing
8-K
Wednesday, 4/8/2015
Current report filing
8-K
Tuesday, 1/20/2015
Current report filing
8-K
Friday, 1/16/2015
Current report filing
8-K
Wednesday, 1/7/2015
Current report filing
8-K
Friday, 1/2/2015
Current report filing
8-K
Wednesday, 11/12/2014
Current report filing
8-K
Friday, 8/22/2014
Current report filing
8-K
Tuesday, 7/15/2014
Current report filing
8-K
Thursday, 7/10/2014
Current report filing
8-K
Thursday, 4/10/2014
Current report filing
8-K
Friday, 1/24/2014
Current report filing
8-K
Thursday, 1/9/2014
Current report filing
8-K
Friday, 11/22/2013
Current report filing
8-K
Wednesday, 11/20/2013
Current report filing
8-K
Thursday, 9/26/2013
Current report filing
8-K
Thursday, 7/11/2013
Current report filing
8-K
Thursday, 4/11/2013
Current report filing
8-K
Friday, 1/18/2013
Current report filing
8-K
Friday, 1/11/2013
Current report filing
8-K
Tuesday, 11/20/2012
Current report filing
8-K
Wednesday, 9/5/2012
Current report filing
8-K
Wednesday, 7/11/2012
Current report filing
8-K
Wednesday, 4/11/2012
Current report filing
8-K
Friday, 2/3/2012
Current report filing
8-K
Wednesday, 1/11/2012
Current report filing
8-K
Wednesday, 11/16/2011
Current report filing
8-K
Tuesday, 9/27/2011
Current report filing
8-K
Wednesday, 7/13/2011
Current report filing
8-K
Wednesday, 4/13/2011
Current report filing
8-K
Monday, 1/24/2011
Current report filing
8-K
Wednesday, 1/12/2011
Current report filing
8-K
Wednesday, 1/12/2011
Current report filing
8-K
Tuesday, 11/23/2010
Current report filing
8-K
Tuesday, 10/5/2010
Current report filing
8-K
Monday, 8/30/2010
Current report filing
8-K
Wednesday, 7/14/2010
Current report filing
8-K
Wednesday, 4/14/2010
Current report filing
8-K
Tuesday, 2/2/2010
Current report filing
8-K
Thursday, 1/14/2010
Current report filing
8-K
Wednesday, 12/2/2009
Current report filing
8-K
Monday, 11/30/2009
Current report filing
8-K
Monday, 9/21/2009
Current report filing
8-K
Friday, 9/11/2009
Current report filing
Show More

Other (71)

ARS
Monday, 12/4/2023
Annual report to security holders
144
Thursday, 7/27/2023
Filing for proposed sale of securities under Rule 144
ARS
Friday, 12/4/2015
Annual report to security holders
CORRESP
Friday, 2/20/2015
A correspondence can be sent as a document with another submission type or can be sent as a separate submission.
ARS
Wednesday, 12/3/2014
Annual report to security holders
ARS
Thursday, 12/12/2013
Annual report to security holders
EFFECT
Tuesday, 12/18/2012
Notice of Effectiveness
ARS
Wednesday, 12/5/2012
Annual report to security holders
ARS
Tuesday, 12/20/2011
Annual report to security holders
ARS
Tuesday, 12/7/2010
Annual report to security holders
CORRESP
Thursday, 6/24/2010
A correspondence can be sent as a document with another submission type or can be sent as a separate submission.
CORRESP
Thursday, 5/27/2010
A correspondence can be sent as a document with another submission type or can be sent as a separate submission.
CORRESP
Tuesday, 3/16/2010
A correspondence can be sent as a document with another submission type or can be sent as a separate submission.
ARS
Tuesday, 12/15/2009
Annual report to security holders
8-A12B/A
Friday, 9/11/2009
Form for the registration / listing of a class of securities on a national securities exchange pursuant to Section 12(b)
EFFECT
Friday, 1/16/2009
Notice of Effectiveness
ARS
Tuesday, 12/2/2008
Annual report to security holders
10QSB
Wednesday, 7/9/2008
None
25
Friday, 6/27/2008
Notification filed by issuer to voluntarily withdraw a class of securities from listing and registration on a national securities exchange
8-A12B
Thursday, 6/26/2008
Form for the registration / listing of a class of securities on a national securities exchange pursuant to Section 12(b)
CERTNAS
Friday, 5/23/2008
None
10QSB
Monday, 4/14/2008
None
10QSB
Friday, 1/11/2008
None
ARS
Wednesday, 12/26/2007
Annual report to security holders
10KSB
Thursday, 11/29/2007
None
CORRESP
Wednesday, 11/28/2007
A correspondence can be sent as a document with another submission type or can be sent as a separate submission.
10KSB/A
Tuesday, 11/20/2007
None
10QSB
Thursday, 7/12/2007
None
10QSB
Thursday, 4/12/2007
None
CORRESP
Friday, 3/9/2007
A correspondence can be sent as a document with another submission type or can be sent as a separate submission.
10QSB
Friday, 1/12/2007
None
10KSB
Tuesday, 11/21/2006
None
10QSB
Friday, 7/14/2006
None
10QSB
Thursday, 4/13/2006
None
10QSB
Tuesday, 1/17/2006
None
10KSB
Monday, 11/21/2005
None
10QSB
Friday, 7/15/2005
None
10QSB
Wednesday, 4/20/2005
None
10QSB
Tuesday, 1/18/2005
None
10KSB
Tuesday, 11/30/2004
None
10QSB
Thursday, 7/15/2004
None
10QSB
Wednesday, 4/14/2004
None
10QSB
Wednesday, 1/14/2004
None
10KSB
Monday, 12/15/2003
None
NTN 10K
Wednesday, 11/26/2003
None
10QSB
Tuesday, 7/15/2003
None
10QSB
Monday, 4/14/2003
None
10QSB
Tuesday, 1/21/2003
None
10KSB
Wednesday, 11/27/2002
None
10QSB
Friday, 7/12/2002
None
10QSB
Monday, 4/15/2002
None
10QSB
Monday, 1/14/2002
None
10KSB
Thursday, 11/29/2001
None
10QSB
Friday, 7/13/2001
None
10QSB
Monday, 4/16/2001
None
10KSB40
Wednesday, 11/29/2000
None
10QSB
Friday, 7/14/2000
None
10QSB
Thursday, 4/13/2000
None
10QSB
Thursday, 1/13/2000
None
10KSB
Monday, 11/29/1999
None
10QSB
Tuesday, 7/13/1999
None
10QSB
Tuesday, 4/13/1999
None
10QSB
Tuesday, 1/12/1999
None
10KSB
Friday, 11/27/1998
None
10QSB
Tuesday, 7/14/1998
None
10QSB
Monday, 4/13/1998
None
10QSB
Tuesday, 1/13/1998
None
10KSB
Wednesday, 11/26/1997
None
10QSB
Monday, 4/14/1997
None
10QSB
Tuesday, 1/14/1997
None
10KSB
Wednesday, 11/27/1996
None
Show More

Ownership (337)

SC 13G/A
Wednesday, 2/14/2024
PUNCH & ASSOCIATES INVESTMENT MANAGEMENT, INC.: Major Shareholders
4
Wednesday, 9/6/2023
LYNCH G PATRICK: Statement of changes in beneficial ownership of securities
4
Wednesday, 9/6/2023
Narayan Ramani: Statement of changes in beneficial ownership of securities
4
Wednesday, 9/6/2023
von Falkenhausen Konstantin: Statement of changes in beneficial ownership of securities
4
Wednesday, 9/6/2023
NIGON RICHARD: Statement of changes in beneficial ownership of securities
4
Wednesday, 9/6/2023
WOLSFELD MATTHEW C: Statement of changes in beneficial ownership of securities
4
Wednesday, 9/6/2023
Kemp Sarah E.: Statement of changes in beneficial ownership of securities
4
Wednesday, 9/6/2023
Lee Sunggyu: Statement of changes in beneficial ownership of securities
4
Wednesday, 9/6/2023
Pinho Cristina Lucia Duarte: Statement of changes in beneficial ownership of securities
4
Wednesday, 9/6/2023
Calderon Nancy E.: Statement of changes in beneficial ownership of securities
4
Monday, 8/28/2023
von Falkenhausen Konstantin: Statement of changes in beneficial ownership of securities
4
Monday, 8/21/2023
Lee Sunggyu: Statement of changes in beneficial ownership of securities
4
Monday, 8/14/2023
Calderon Nancy E.: Statement of changes in beneficial ownership of securities
4
Thursday, 8/10/2023
LYNCH G PATRICK: Statement of changes in beneficial ownership of securities
4
Thursday, 7/27/2023
NIGON RICHARD: Statement of changes in beneficial ownership of securities
4
Wednesday, 7/12/2023
WOLSFELD MATTHEW C: Statement of changes in beneficial ownership of securities
4
Wednesday, 4/19/2023
Kemp Sarah E.: Statement of changes in beneficial ownership of securities
SC 13G/A
Monday, 2/13/2023
PUNCH & ASSOCIATES INVESTMENT MANAGEMENT, INC.: Major Shareholders
4
Tuesday, 1/31/2023
Calderon Nancy E.: Statement of changes in beneficial ownership of securities
4
Monday, 1/23/2023
Pinho Cristina Lucia Duarte: Statement of changes in beneficial ownership of securities
3
Monday, 1/23/2023
Pinho Cristina Lucia Duarte: Initial statement of beneficial ownership of securities
4
Monday, 10/17/2022
von Falkenhausen Konstantin: Statement of changes in beneficial ownership of securities
4
Thursday, 10/6/2022
LYNCH G PATRICK: Statement of changes in beneficial ownership of securities
4
Thursday, 10/6/2022
WOLSFELD MATTHEW C: Statement of changes in beneficial ownership of securities
4
Monday, 10/3/2022
Narayan Ramani: Statement of changes in beneficial ownership of securities
4
Wednesday, 9/14/2022
Lee Sunggyu: Statement of changes in beneficial ownership of securities
4
Tuesday, 9/6/2022
Kemp Sarah E.: Statement of changes in beneficial ownership of securities
4
Tuesday, 9/6/2022
von Falkenhausen Konstantin: Statement of changes in beneficial ownership of securities
4
Tuesday, 9/6/2022
Calderon Nancy E.: Statement of changes in beneficial ownership of securities
4
Tuesday, 9/6/2022
Narayan Ramani: Statement of changes in beneficial ownership of securities
4
Tuesday, 9/6/2022
NIGON RICHARD: Statement of changes in beneficial ownership of securities
4
Tuesday, 9/6/2022
WOLSFELD MATTHEW C: Statement of changes in beneficial ownership of securities
4
Tuesday, 9/6/2022
LYNCH G PATRICK: Statement of changes in beneficial ownership of securities
4
Monday, 4/25/2022
Narayan Ramani: Statement of changes in beneficial ownership of securities
SC 13G
Monday, 2/14/2022
PUNCH & ASSOCIATES INVESTMENT MANAGEMENT, INC.: Major Shareholders
4
Thursday, 1/13/2022
Kemp Sarah E.: Statement of changes in beneficial ownership of securities
4
Friday, 11/12/2021
Narayan Ramani: Statement of changes in beneficial ownership of securities
4
Thursday, 9/2/2021
von Falkenhausen Konstantin: Statement of changes in beneficial ownership of securities
4
Thursday, 9/2/2021
Calderon Nancy E.: Statement of changes in beneficial ownership of securities
4
Thursday, 9/2/2021
Kemp Sarah E.: Statement of changes in beneficial ownership of securities
4
Thursday, 9/2/2021
NIGON RICHARD: Statement of changes in beneficial ownership of securities
4
Thursday, 9/2/2021
WOLSFELD MATTHEW C: Statement of changes in beneficial ownership of securities
4
Thursday, 9/2/2021
Narayan Ramani: Statement of changes in beneficial ownership of securities
4
Thursday, 9/2/2021
LYNCH G PATRICK: Statement of changes in beneficial ownership of securities
4
Friday, 7/9/2021
Keong Koh Soo: Statement of changes in beneficial ownership of securities
4
Monday, 1/25/2021
Calderon Nancy E.: Statement of changes in beneficial ownership of securities
4
Thursday, 9/3/2020
WOLSFELD MATTHEW C: Statement of changes in beneficial ownership of securities
4
Thursday, 9/3/2020
LYNCH G PATRICK: Statement of changes in beneficial ownership of securities
4
Wednesday, 9/2/2020
von Falkenhausen Konstantin: Statement of changes in beneficial ownership of securities
4
Wednesday, 9/2/2020
Narayan Ramani: Statement of changes in beneficial ownership of securities
4
Wednesday, 9/2/2020
Kemp Sarah E.: Statement of changes in beneficial ownership of securities
4
Wednesday, 9/2/2020
Keong Koh Soo: Statement of changes in beneficial ownership of securities
4
Wednesday, 9/2/2020
NIGON RICHARD: Statement of changes in beneficial ownership of securities
4
Wednesday, 9/2/2020
Calderon Nancy E.: Statement of changes in beneficial ownership of securities
4
Friday, 7/24/2020
Calderon Nancy E.: Statement of changes in beneficial ownership of securities
SC 13G/A
Monday, 2/10/2020
PERRITT CAPITAL MANAGEMENT INC: Major Shareholders
3
Thursday, 10/24/2019
Calderon Nancy E.: Initial statement of beneficial ownership of securities
4
Thursday, 10/24/2019
Calderon Nancy E.: Statement of changes in beneficial ownership of securities
4
Thursday, 10/24/2019
Kemp Sarah E.: Statement of changes in beneficial ownership of securities
3
Thursday, 10/24/2019
Kemp Sarah E.: Initial statement of beneficial ownership of securities
SC 13D/A
Tuesday, 10/22/2019
INTER ALIA HOLDING CO: Major Shareholders
4
Wednesday, 9/4/2019
WOLSFELD MATTHEW C: Statement of changes in beneficial ownership of securities
4
Wednesday, 9/4/2019
Narayan Ramani: Statement of changes in beneficial ownership of securities
4
Wednesday, 9/4/2019
NIGON RICHARD: Statement of changes in beneficial ownership of securities
4
Wednesday, 9/4/2019
LYNCH G PATRICK: Statement of changes in beneficial ownership of securities
4
Wednesday, 9/4/2019
von Falkenhausen Konstantin: Statement of changes in beneficial ownership of securities
4
Wednesday, 9/4/2019
Keong Koh Soo: Statement of changes in beneficial ownership of securities
SC 13G/A
Friday, 2/8/2019
PERRITT CAPITAL MANAGEMENT INC: Major Shareholders
4
Wednesday, 9/5/2018
Colwell Barbara D.: Statement of changes in beneficial ownership of securities
4
Wednesday, 9/5/2018
Keong Koh Soo: Statement of changes in beneficial ownership of securities
4
Wednesday, 9/5/2018
Narayan Ramani: Statement of changes in beneficial ownership of securities
4
Wednesday, 9/5/2018
NIGON RICHARD: Statement of changes in beneficial ownership of securities
4
Wednesday, 9/5/2018
WOLSFELD MATTHEW C: Statement of changes in beneficial ownership of securities
4
Wednesday, 9/5/2018
LYNCH G PATRICK: Statement of changes in beneficial ownership of securities
4
Wednesday, 9/5/2018
von Falkenhausen Konstantin: Statement of changes in beneficial ownership of securities
SC 13G/A
Friday, 2/9/2018
RUTABAGA CAPITAL MANAGEMENT LLC/MA: Major Shareholders
SC 13G/A
Monday, 2/5/2018
PERRITT CAPITAL MANAGEMENT INC: Major Shareholders
4
Friday, 9/8/2017
NIGON RICHARD: Statement of changes in beneficial ownership of securities
4
Tuesday, 9/5/2017
NIGON RICHARD: Statement of changes in beneficial ownership of securities
4
Tuesday, 9/5/2017
von Falkenhausen Konstantin: Statement of changes in beneficial ownership of securities
4
Tuesday, 9/5/2017
Keong Koh Soo: Statement of changes in beneficial ownership of securities
4
Tuesday, 9/5/2017
Narayan Ramani: Statement of changes in beneficial ownership of securities
4
Tuesday, 9/5/2017
LYNCH G PATRICK: Statement of changes in beneficial ownership of securities
4
Tuesday, 9/5/2017
Colwell Barbara D.: Statement of changes in beneficial ownership of securities
4
Tuesday, 9/5/2017
WOLSFELD MATTHEW C: Statement of changes in beneficial ownership of securities
4
Thursday, 8/24/2017
Keong Koh Soo: Statement of changes in beneficial ownership of securities
4
Monday, 5/1/2017
NIGON RICHARD: Statement of changes in beneficial ownership of securities
SC 13G/A
Wednesday, 2/15/2017
RUTABAGA CAPITAL MANAGEMENT LLC/MA: Major Shareholders
SC 13G/A
Tuesday, 2/14/2017
PERRITT CAPITAL MANAGEMENT INC: Major Shareholders
4
Tuesday, 9/6/2016
NIGON RICHARD: Statement of changes in beneficial ownership of securities
4
Tuesday, 9/6/2016
von Falkenhausen Konstantin: Statement of changes in beneficial ownership of securities
4
Tuesday, 9/6/2016
Keong Koh Soo: Statement of changes in beneficial ownership of securities
4
Tuesday, 9/6/2016
LYNCH G PATRICK: Statement of changes in beneficial ownership of securities
4
Tuesday, 9/6/2016
WOLSFELD MATTHEW C: Statement of changes in beneficial ownership of securities
4
Tuesday, 9/6/2016
Narayan Ramani: Statement of changes in beneficial ownership of securities
4
Tuesday, 9/6/2016
Colwell Barbara D.: Statement of changes in beneficial ownership of securities
SC 13G/A
Thursday, 2/11/2016
RUTABAGA CAPITAL MANAGEMENT LLC/MA: Major Shareholders
SC 13G/A
Thursday, 2/4/2016
PERRITT CAPITAL MANAGEMENT INC: Major Shareholders
4
Thursday, 9/3/2015
WOLSFELD MATTHEW C: Statement of changes in beneficial ownership of securities
4
Thursday, 9/3/2015
NIGON RICHARD: Statement of changes in beneficial ownership of securities
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Prospectus (16)

S-8 POS
Monday, 1/22/2024
Post-effective amendment to a S-8 registration statement
S-8
Monday, 1/22/2024
Initial registration statement for securities to be offered to employees pursuant to employee benefit plans
S-8 POS
Monday, 1/22/2024
Post-effective amendment to a S-8 registration statement
S-8
Tuesday, 1/19/2021
Initial registration statement for securities to be offered to employees pursuant to employee benefit plans
S-8
Monday, 1/28/2019
Initial registration statement for securities to be offered to employees pursuant to employee benefit plans
S-3
Wednesday, 12/5/2012
Registration statement for specified transactions by certain issuers
S-8 POS
Friday, 2/3/2012
Post-effective amendment to a S-8 registration statement
S-8
Monday, 1/24/2011
Initial registration statement for securities to be offered to employees pursuant to employee benefit plans
S-8 POS
Tuesday, 11/23/2010
Post-effective amendment to a S-8 registration statement
424B5
Friday, 9/18/2009
Prospectus filed pursuant to Rule 424(b)(5)
S-3/A
Thursday, 1/15/2009
Registration statement for specified transactions by certain issuers
S-3
Tuesday, 10/7/2008
Registration statement for specified transactions by certain issuers
S-8
Friday, 1/26/2007
Initial registration statement for securities to be offered to employees pursuant to employee benefit plans
S-8
Friday, 1/26/2007
Initial registration statement for securities to be offered to employees pursuant to employee benefit plans
S-8
Wednesday, 3/15/2000
Initial registration statement for securities to be offered to employees pursuant to employee benefit plans
S-8
Tuesday, 8/19/1997
Initial registration statement for securities to be offered to employees pursuant to employee benefit plans
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Proxies (51)

DEFA14A
Monday, 12/4/2023
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
Monday, 12/4/2023
Definitive proxy statements
DEFA14A
Tuesday, 12/20/2022
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
Monday, 12/5/2022
Definitive proxy statements
DEFA14A
Monday, 12/5/2022
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.
PRE 14A
Wednesday, 11/16/2022
Preliminary proxy statement not related to a contested matter or merger/acquisition
DEF 14A
Monday, 12/6/2021
Definitive proxy statements
DEFA14A
Monday, 12/6/2021
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, 11/30/2020
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
Monday, 11/30/2020
Definitive proxy statements
DEF 14A
Monday, 12/2/2019
Definitive proxy statements
DEFA14A
Monday, 12/2/2019
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
Friday, 11/30/2018
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
Friday, 11/30/2018
Definitive proxy statements
PRE 14A
Friday, 11/16/2018
Preliminary proxy statement not related to a contested matter or merger/acquisition
DEFA14A
Monday, 1/22/2018
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, 11/27/2017
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
Monday, 11/27/2017
Definitive proxy statements
PRE 14A
Wednesday, 11/15/2017
Preliminary proxy statement not related to a contested matter or merger/acquisition
DEF 14A
Monday, 11/28/2016
Definitive proxy statements
DEFA14A
Monday, 11/28/2016
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, 12/3/2015
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, 12/3/2015
Definitive proxy statements
DEFA14A
Wednesday, 12/3/2014
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, 12/3/2014
Definitive proxy statements
DEF 14A
Tuesday, 12/10/2013
Definitive proxy statements
DEFA14A
Tuesday, 12/10/2013
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, 12/5/2012
Definitive proxy statements
DEFA14A
Wednesday, 12/5/2012
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
Monday, 12/19/2011
Definitive proxy statements
DEFA14A
Monday, 12/19/2011
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
Monday, 12/6/2010
Definitive proxy statements
DEFA14A
Monday, 12/6/2010
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, 12/10/2009
Definitive proxy statements
DEFA14A
Thursday, 12/10/2009
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
Friday, 12/12/2008
Definitive proxy statements
DEFA14A
Friday, 12/12/2008
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.
PRE 14A
Friday, 11/21/2008
Preliminary proxy statement not related to a contested matter or merger/acquisition
DEF 14A
Wednesday, 12/12/2007
Definitive proxy statements
DEFA14A
Wednesday, 12/12/2007
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
Monday, 12/11/2006
Definitive proxy statements
DEF 14A
Friday, 12/30/2005
Definitive proxy statements
DEF 14A
Monday, 12/13/2004
Definitive proxy statements
DEF 14A
Friday, 12/19/2003
Definitive proxy statements
DEF 14A
Friday, 12/6/2002
Definitive proxy statements
DEF 14A
Wednesday, 12/12/2001
Definitive proxy statements
DEF 14A
Tuesday, 1/9/2001
Definitive proxy statements
DEF 14A
Wednesday, 1/5/2000
Definitive proxy statements
DEF 14A
Friday, 1/8/1999
Definitive proxy statements
DEF 14A
Monday, 1/12/1998
Definitive proxy statements
DEF 14A
Wednesday, 1/8/1997
Definitive proxy statements
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