QUAKER CAPITAL MANAGEMENT CORP
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- COLE NATIONAL CORP /DE/ (3)
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- PreVu, INC (3)
- Schoeppner Mark G (3)
- PERFORMANCE TECHNOLOGIES INC \DE\ (3)
- DAWSON GEOPHYSICAL CO (2)
- RF MONOLITHICS INC /DE/ (2)
- AMERICA WEST HOLDINGS CORP (2)
- NUCENTRIX BROADBAND NETWORKS INC (2)
- SPECTRUM CONTROL INC (2)
- UNITED ONLINE INC (2)
- Quaker Capital Partners II, L.P. (2)
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- Quaker Premier II, L.P. (2)
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- GUILFORD MILLS INC (1)
- MATRIX PHARMACEUTICAL INC/DE (1)
- UNITED THERAPEUTICS CORP (1)
- WSFS FINANCIAL CORP (1)
- MAGELLAN HEALTH SERVICES INC (1)
- STRATOS INTERNATIONAL INC (1)
- CT COMMUNICATIONS INC /NC (1)
- ROCKFORD CORP (1)
- ACUSPHERE INC (1)
- 180 Connect Inc. (1)
- PLATO LEARNING INC (1)
- LANDAMERICA FINANCIAL GROUP INC (1)
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Other (59)
13F-HR
Thursday, 11/14/2013
Initial Quarterly Form 13F Holdings Report filed by institutional managers
13F-HR
Wednesday, 8/14/2013
Initial Quarterly Form 13F Holdings Report filed by institutional managers
13F-HR
Tuesday, 5/14/2013
Initial Quarterly Form 13F Holdings Report filed by institutional managers
13F-HR
Thursday, 2/14/2013
Initial Quarterly Form 13F Holdings Report filed by institutional managers
13F-HR
Thursday, 11/15/2012
Initial Quarterly Form 13F Holdings Report filed by institutional managers
13F-HR
Tuesday, 8/14/2012
Initial Quarterly Form 13F Holdings Report filed by institutional managers
13F-HR
Tuesday, 5/15/2012
Initial Quarterly Form 13F Holdings Report filed by institutional managers
13F-HR
Tuesday, 2/14/2012
Initial Quarterly Form 13F Holdings Report filed by institutional managers
13F-HR
Monday, 11/14/2011
Initial Quarterly Form 13F Holdings Report filed by institutional managers
13F-HR
Monday, 8/15/2011
Initial Quarterly Form 13F Holdings Report filed by institutional managers
13F-HR
Monday, 5/16/2011
Initial Quarterly Form 13F Holdings Report filed by institutional managers
13F-HR
Monday, 2/14/2011
Initial Quarterly Form 13F Holdings Report filed by institutional managers
13F-HR
Monday, 11/15/2010
Initial Quarterly Form 13F Holdings Report filed by institutional managers
13F-HR
Monday, 8/16/2010
Initial Quarterly Form 13F Holdings Report filed by institutional managers
13F-HR
Friday, 5/14/2010
Initial Quarterly Form 13F Holdings Report filed by institutional managers
13F-HR
Tuesday, 2/16/2010
Initial Quarterly Form 13F Holdings Report filed by institutional managers
13F-HR
Friday, 11/13/2009
Initial Quarterly Form 13F Holdings Report filed by institutional managers
13F-HR
Friday, 8/14/2009
Initial Quarterly Form 13F Holdings Report filed by institutional managers
13F-HR
Friday, 5/15/2009
Initial Quarterly Form 13F Holdings Report filed by institutional managers
13F-HR
Tuesday, 2/17/2009
Initial Quarterly Form 13F Holdings Report filed by institutional managers
13F-HR
Friday, 11/14/2008
Initial Quarterly Form 13F Holdings Report filed by institutional managers
13F-HR
Thursday, 8/14/2008
Initial Quarterly Form 13F Holdings Report filed by institutional managers
13F-HR
Wednesday, 5/14/2008
Initial Quarterly Form 13F Holdings Report filed by institutional managers
13F-HR
Thursday, 2/14/2008
Initial Quarterly Form 13F Holdings Report filed by institutional managers
13F-HR
Wednesday, 11/14/2007
Initial Quarterly Form 13F Holdings Report filed by institutional managers
13F-HR
Tuesday, 8/14/2007
Initial Quarterly Form 13F Holdings Report filed by institutional managers
13F-HR
Tuesday, 5/15/2007
Initial Quarterly Form 13F Holdings Report filed by institutional managers
13F-HR
Wednesday, 2/14/2007
Initial Quarterly Form 13F Holdings Report filed by institutional managers
13F-HR
Wednesday, 11/15/2006
Initial Quarterly Form 13F Holdings Report filed by institutional managers
13F-HR
Friday, 8/11/2006
Initial Quarterly Form 13F Holdings Report filed by institutional managers
13F-HR
Friday, 5/12/2006
Initial Quarterly Form 13F Holdings Report filed by institutional managers
13F-HR
Tuesday, 2/14/2006
Initial Quarterly Form 13F Holdings Report filed by institutional managers
13F-HR
Monday, 11/14/2005
Initial Quarterly Form 13F Holdings Report filed by institutional managers
13F-HR
Friday, 8/12/2005
Initial Quarterly Form 13F Holdings Report filed by institutional managers
13F-HR
Monday, 5/16/2005
Initial Quarterly Form 13F Holdings Report filed by institutional managers
13F-HR
Friday, 2/11/2005
Initial Quarterly Form 13F Holdings Report filed by institutional managers
13F-HR
Monday, 11/15/2004
Initial Quarterly Form 13F Holdings Report filed by institutional managers
13F-HR
Thursday, 8/12/2004
Initial Quarterly Form 13F Holdings Report filed by institutional managers
13F-HR
Thursday, 5/13/2004
Initial Quarterly Form 13F Holdings Report filed by institutional managers
13F-HR
Friday, 2/13/2004
Initial Quarterly Form 13F Holdings Report filed by institutional managers
13F-HR
Friday, 11/14/2003
Initial Quarterly Form 13F Holdings Report filed by institutional managers
13F-HR
Tuesday, 8/12/2003
Initial Quarterly Form 13F Holdings Report filed by institutional managers
13F-HR
Thursday, 5/15/2003
Initial Quarterly Form 13F Holdings Report filed by institutional managers
13F-HR
Friday, 2/14/2003
Initial Quarterly Form 13F Holdings Report filed by institutional managers
13F-HR
Wednesday, 11/13/2002
Initial Quarterly Form 13F Holdings Report filed by institutional managers
13F-HR
Wednesday, 8/14/2002
Initial Quarterly Form 13F Holdings Report filed by institutional managers
13F-HR
Tuesday, 5/14/2002
Initial Quarterly Form 13F Holdings Report filed by institutional managers
13F-HR
Thursday, 2/14/2002
Initial Quarterly Form 13F Holdings Report filed by institutional managers
13F-HR
Wednesday, 11/14/2001
Initial Quarterly Form 13F Holdings Report filed by institutional managers
13F-HR
Wednesday, 8/15/2001
Initial Quarterly Form 13F Holdings Report filed by institutional managers
13F-HR
Monday, 5/14/2001
Initial Quarterly Form 13F Holdings Report filed by institutional managers
13F-HR
Wednesday, 2/14/2001
Initial Quarterly Form 13F Holdings Report filed by institutional managers
13F-HR
Wednesday, 11/15/2000
Initial Quarterly Form 13F Holdings Report filed by institutional managers
13F-HR
Monday, 8/14/2000
Initial Quarterly Form 13F Holdings Report filed by institutional managers
13F-HR
Friday, 5/12/2000
Initial Quarterly Form 13F Holdings Report filed by institutional managers
13F-HR
Monday, 2/14/2000
Initial Quarterly Form 13F Holdings Report filed by institutional managers
13F-HR
Monday, 11/15/1999
Initial Quarterly Form 13F Holdings Report filed by institutional managers
13F-HR
Friday, 8/13/1999
Initial Quarterly Form 13F Holdings Report filed by institutional managers
13F-HR
Monday, 5/17/1999
Initial Quarterly Form 13F Holdings Report filed by institutional managers
Ownership (189)
SC 13G/A
Wednesday, 12/11/2013
PERFORMANCE TECHNOLOGIES INC \DE\: Major Shareholders
4
Thursday, 11/21/2013
PERFORMANCE TECHNOLOGIES INC \DE\: Statement of changes in beneficial ownership of securities
4
Thursday, 10/3/2013
PERFORMANCE TECHNOLOGIES INC \DE\: Statement of changes in beneficial ownership of securities
4
Monday, 7/1/2013
PERFORMANCE TECHNOLOGIES INC \DE\: Statement of changes in beneficial ownership of securities
SC 13G/A
Wednesday, 2/13/2013
PERFORMANCE TECHNOLOGIES INC \DE\: Major Shareholders
4
Friday, 2/24/2012
PERFORMANCE TECHNOLOGIES INC \DE\: Statement of changes in beneficial ownership of securities
SC 13G/A
Tuesday, 2/14/2012
PERFORMANCE TECHNOLOGIES INC \DE\: Major Shareholders
4
Wednesday, 5/11/2011
PERFORMANCE TECHNOLOGIES INC \DE\: Statement of changes in beneficial ownership of securities
SC 13G/A
Monday, 2/14/2011
NightHawk Radiology Holdings Inc: Major Shareholders
SC 13G/A
Tuesday, 2/16/2010
PERFORMANCE TECHNOLOGIES INC \DE\: Major Shareholders
SC 13G/A
Tuesday, 2/16/2010
NightHawk Radiology Holdings Inc: Major Shareholders
SC 13G/A
Tuesday, 2/16/2010
CalAmp Corp.: Major Shareholders
SC 13G
Thursday, 11/12/2009
NightHawk Radiology Holdings Inc: Major Shareholders
4
Wednesday, 2/18/2009
PERFORMANCE TECHNOLOGIES INC \DE\: Statement of changes in beneficial ownership of securities
SC 13G/A
Tuesday, 2/17/2009
PERFORMANCE TECHNOLOGIES INC \DE\: Major Shareholders
SC 13G/A
Tuesday, 2/17/2009
CalAmp Corp.: Major Shareholders
SC 13G/A
Tuesday, 2/17/2009
CHARMING SHOPPES INC: Major Shareholders
SC 13G/A
Thursday, 12/4/2008
FIRST MARBLEHEAD CORP: Major Shareholders
SC 13G/A
Thursday, 12/4/2008
LANDAMERICA FINANCIAL GROUP INC: Major Shareholders
SC 13D/A
Tuesday, 11/25/2008
PreVu, INC: Major Shareholders
SC 13D/A
Friday, 11/21/2008
PreVu, INC: Major Shareholders
SC 13G/A
Friday, 10/31/2008
PLATO LEARNING INC: Major Shareholders
SC 13G
Thursday, 10/23/2008
CHARMING SHOPPES INC: Major Shareholders
SC 13G
Monday, 8/11/2008
LANDAMERICA FINANCIAL GROUP INC: Major Shareholders
SC 13G/A
Friday, 8/1/2008
180 Connect Inc.: Major Shareholders
SC 13G/A
Monday, 6/9/2008
PEAK INTERNATIONAL LTD: Major Shareholders
SC 13G
Friday, 5/30/2008
FIRST MARBLEHEAD CORP: Major Shareholders
4
Thursday, 5/8/2008
PERFORMANCE TECHNOLOGIES INC \DE\: Statement of changes in beneficial ownership of securities
4
Tuesday, 4/29/2008
PERFORMANCE TECHNOLOGIES INC \DE\: Statement of changes in beneficial ownership of securities
4
Friday, 2/29/2008
PERFORMANCE TECHNOLOGIES INC \DE\: Statement of changes in beneficial ownership of securities
4
Wednesday, 2/20/2008
PERFORMANCE TECHNOLOGIES INC \DE\: Statement of changes in beneficial ownership of securities
SC 13G/A
Thursday, 2/14/2008
ACUSPHERE INC: Major Shareholders
SC 13G/A
Thursday, 2/14/2008
PEAK INTERNATIONAL LTD: Major Shareholders
SC 13G/A
Thursday, 2/14/2008
CalAmp Corp.: Major Shareholders
SC 13G/A
Thursday, 2/14/2008
PLATO LEARNING INC: Major Shareholders
SC 13G
Thursday, 2/14/2008
180 Connect Inc.: Major Shareholders
SC 13G
Wednesday, 1/30/2008
PERFORMANCE TECHNOLOGIES INC \DE\: Major Shareholders
3
Wednesday, 1/30/2008
PERFORMANCE TECHNOLOGIES INC \DE\: Initial statement of beneficial ownership of securities
4
Wednesday, 1/30/2008
PERFORMANCE TECHNOLOGIES INC \DE\: Statement of changes in beneficial ownership of securities
3/A
Friday, 6/29/2007
WILSONS THE LEATHER EXPERTS INC: Initial statement of beneficial ownership of securities
SC 13D/A
Wednesday, 6/27/2007
WILSONS THE LEATHER EXPERTS INC: Major Shareholders
3
Wednesday, 6/20/2007
WILSONS THE LEATHER EXPERTS INC: Initial statement of beneficial ownership of securities
SC 13D
Tuesday, 6/12/2007
WILSONS THE LEATHER EXPERTS INC: Major Shareholders
SC 13G/A
Monday, 6/11/2007
SPECTRUM CONTROL INC: Major Shareholders
SC 13G/A
Wednesday, 2/14/2007
ACUSPHERE INC: Major Shareholders
SC 13G
Wednesday, 2/14/2007
CalAmp Corp.: Major Shareholders
SC 13G/A
Wednesday, 2/14/2007
CT COMMUNICATIONS INC /NC: Major Shareholders
SC 13G/A
Wednesday, 2/14/2007
MAGELLAN HEALTH SERVICES INC: Major Shareholders
SC 13G/A
Wednesday, 2/14/2007
PEAK INTERNATIONAL LTD: Major Shareholders
SC 13G/A
Wednesday, 2/14/2007
PLATO LEARNING INC: Major Shareholders
SC 13G/A
Wednesday, 2/14/2007
ROCKFORD CORP: Major Shareholders
SC 13G/A
Wednesday, 2/14/2007
SPECTRUM CONTROL INC: Major Shareholders
SC 13G/A
Wednesday, 2/14/2007
STRATOS INTERNATIONAL INC: Major Shareholders
SC 13G/A
Wednesday, 2/14/2007
UNITED ONLINE INC: Major Shareholders
SC 13G/A
Wednesday, 2/14/2007
WILSONS THE LEATHER EXPERTS INC: Major Shareholders
SC 13G
Monday, 11/13/2006
PLATO LEARNING INC: Major Shareholders
SC 13D/A
Thursday, 9/28/2006
FiberTower CORP: Major Shareholders
4
Wednesday, 5/24/2006
FIRST AVENUE NETWORKS INC: Statement of changes in beneficial ownership of securities
SC 13D
Monday, 5/22/2006
FIRST AVENUE NETWORKS INC: Major Shareholders
SC 13G/A
Friday, 3/10/2006
ROCKFORD CORP: Major Shareholders
4
Friday, 3/3/2006
FIRST AVENUE NETWORKS INC: Statement of changes in beneficial ownership of securities
SC 13G/A
Tuesday, 2/14/2006
ACUSPHERE INC: Major Shareholders
SC 13G
Tuesday, 2/14/2006
CT COMMUNICATIONS INC /NC: Major Shareholders
SC 13G/A
Tuesday, 2/14/2006
FIRST AVENUE NETWORKS INC: Major Shareholders
SC 13G
Tuesday, 2/14/2006
MAGELLAN HEALTH SERVICES INC: Major Shareholders
SC 13G/A
Tuesday, 2/14/2006
PEAK INTERNATIONAL LTD: Major Shareholders
SC 13G/A
Tuesday, 2/14/2006
ROCKFORD CORP: Major Shareholders
SC 13G/A
Tuesday, 2/14/2006
SPECTRUM CONTROL INC: Major Shareholders
SC 13G
Tuesday, 2/14/2006
MAGELLAN HEALTH SERVICES INC: Major Shareholders
SC 13G/A
Tuesday, 2/14/2006
UNITED ONLINE INC: Major Shareholders
SC 13G/A
Tuesday, 2/14/2006
WILSONS THE LEATHER EXPERTS INC: Major Shareholders
SC 13G
Tuesday, 2/14/2006
STRATOS INTERNATIONAL INC: Major Shareholders
4
Wednesday, 11/16/2005
FIRST AVENUE NETWORKS INC: Statement of changes in beneficial ownership of securities
3
Friday, 4/15/2005
ACUSPHERE INC: Initial statement of beneficial ownership of securities
SC 13G/A
Wednesday, 2/9/2005
DAWSON GEOPHYSICAL CO: Major Shareholders
SC 13G/A
Wednesday, 2/9/2005
PEAK INTERNATIONAL LTD: Major Shareholders
SC 13G/A
Wednesday, 2/9/2005
SPECTRUM CONTROL INC: Major Shareholders
SC 13G/A
Wednesday, 2/9/2005
ACUSPHERE INC: Major Shareholders
SC 13G/A
Wednesday, 2/9/2005
UNITED ONLINE INC: Major Shareholders
SC 13G/A
Wednesday, 2/9/2005
FIRST AVENUE NETWORKS INC: Major Shareholders
SC 13G/A
Wednesday, 2/9/2005
COLE NATIONAL CORP /DE/: Major Shareholders
SC 13G/A
Wednesday, 2/9/2005
ROCKFORD CORP: Major Shareholders
SC 13G/A
Friday, 1/7/2005
FIRST AVENUE NETWORKS INC: Major Shareholders
SC 13G/A
Monday, 8/16/2004
WILSONS THE LEATHER EXPERTS INC: Major Shareholders
4
Friday, 7/16/2004
FIRST AVENUE NETWORKS INC: Statement of changes in beneficial ownership of securities
SC 13G
Monday, 7/12/2004
WILSONS THE LEATHER EXPERTS INC: Major Shareholders
SC 13G/A
Friday, 2/13/2004
DAWSON GEOPHYSICAL CO: Major Shareholders
SC 13G/A
Friday, 2/13/2004
WSFS FINANCIAL CORP: Major Shareholders
SC 13G/A
Friday, 2/13/2004
RF MONOLITHICS INC /DE/: Major Shareholders
SC 13G/A
Friday, 2/13/2004
ROCKFORD CORP: Major Shareholders
SC 13G/A
Friday, 2/13/2004
COLE NATIONAL CORP /DE/: Major Shareholders
SC 13G/A
Friday, 2/13/2004
SPECTRUM CONTROL INC: Major Shareholders
SC 13G/A
Friday, 2/13/2004
PEAK INTERNATIONAL LTD: Major Shareholders
SC 13G/A
Friday, 2/13/2004
FIRST AVENUE NETWORKS INC: Major Shareholders
4
Friday, 1/30/2004
FIRST AVENUE NETWORKS INC: Statement of changes in beneficial ownership of securities
SC 13D/A
Friday, 1/2/2004
NUCENTRIX BROADBAND NETWORKS INC: Major Shareholders
4
Tuesday, 12/30/2003
FIRST AVENUE NETWORKS INC: Statement of changes in beneficial ownership of securities
SC 13G/A
Thursday, 5/8/2003
EMCEE BROADCAST PRODUCTS INC: Major Shareholders
SC 13G/A
Thursday, 5/8/2003
PEAK INTERNATIONAL LTD: Major Shareholders
SC 13G/A
Friday, 2/14/2003
PEAK INTERNATIONAL LTD: Major Shareholders