MAYER GUY L
Related Filers (3)
Ownership (42)
4
Thursday, 4/4/2013
SPIRE Corp: Statement of changes in beneficial ownership of securities
4
Monday, 11/19/2012
SPIRE Corp: Statement of changes in beneficial ownership of securities
4
Monday, 8/20/2012
SPIRE Corp: Statement of changes in beneficial ownership of securities
4
Monday, 5/21/2012
SPIRE Corp: Statement of changes in beneficial ownership of securities
4
Thursday, 4/5/2012
SPIRE Corp: Statement of changes in beneficial ownership of securities
4
Friday, 11/18/2011
SPIRE Corp: Statement of changes in beneficial ownership of securities
4
Monday, 8/22/2011
SPIRE Corp: Statement of changes in beneficial ownership of securities
4
Monday, 5/23/2011
SPIRE Corp: Statement of changes in beneficial ownership of securities
4
Wednesday, 3/23/2011
SPIRE CORP: Statement of changes in beneficial ownership of securities
4
Friday, 11/19/2010
SPIRE CORP: Statement of changes in beneficial ownership of securities
4
Tuesday, 8/10/2010
SPIRE CORP: Statement of changes in beneficial ownership of securities
4
Friday, 5/21/2010
SPIRE CORP: Statement of changes in beneficial ownership of securities
4
Tuesday, 3/16/2010
SPIRE CORP: Statement of changes in beneficial ownership of securities
4
Monday, 11/23/2009
SPIRE CORP: Statement of changes in beneficial ownership of securities
4
Friday, 8/21/2009
SPIRE CORP: Statement of changes in beneficial ownership of securities
4
Tuesday, 5/26/2009
SPIRE CORP: Statement of changes in beneficial ownership of securities
4
Monday, 3/23/2009
SPIRE CORP: Statement of changes in beneficial ownership of securities
4
Thursday, 2/12/2009
RTI Biologics, Inc.: Statement of changes in beneficial ownership of securities
4
Thursday, 12/18/2008
SPIRE CORP: Statement of changes in beneficial ownership of securities
4
Wednesday, 11/5/2008
RTI Biologics, Inc.: Statement of changes in beneficial ownership of securities
4
Friday, 8/22/2008
SPIRE CORP: Statement of changes in beneficial ownership of securities
4
Wednesday, 8/6/2008
RTI Biologics, Inc.: Statement of changes in beneficial ownership of securities
4
Tuesday, 5/27/2008
SPIRE CORP: Statement of changes in beneficial ownership of securities
4
Wednesday, 3/19/2008
SPIRE CORP: Statement of changes in beneficial ownership of securities
3
Friday, 2/29/2008
RTI Biologics, Inc.: Initial statement of beneficial ownership of securities
4
Tuesday, 11/20/2007
TUTOGEN MEDICAL INC: Statement of changes in beneficial ownership of securities
4
Monday, 11/19/2007
SPIRE CORP: Statement of changes in beneficial ownership of securities
4
Friday, 8/17/2007
SPIRE CORP: Statement of changes in beneficial ownership of securities
4
Friday, 5/18/2007
SPIRE CORP: Statement of changes in beneficial ownership of securities
4
Friday, 3/16/2007
TUTOGEN MEDICAL INC: Statement of changes in beneficial ownership of securities
4
Tuesday, 10/3/2006
SPIRE CORP: Statement of changes in beneficial ownership of securities
4
Wednesday, 7/5/2006
SPIRE CORP: Statement of changes in beneficial ownership of securities
4
Friday, 5/12/2006
TUTOGEN MEDICAL INC: Statement of changes in beneficial ownership of securities
4
Tuesday, 4/4/2006
SPIRE CORP: Statement of changes in beneficial ownership of securities
4
Wednesday, 1/4/2006
SPIRE CORP: Statement of changes in beneficial ownership of securities
4
Monday, 10/3/2005
SPIRE CORP: Statement of changes in beneficial ownership of securities
4
Friday, 7/1/2005
SPIRE CORP: Statement of changes in beneficial ownership of securities
4
Monday, 4/4/2005
SPIRE CORP: Statement of changes in beneficial ownership of securities
3
Thursday, 1/20/2005
TUTOGEN MEDICAL INC: Initial statement of beneficial ownership of securities
4
Tuesday, 1/4/2005
SPIRE CORP: Statement of changes in beneficial ownership of securities
4
Friday, 10/1/2004
SPIRE CORP: Statement of changes in beneficial ownership of securities
4
Thursday, 7/1/2004
SPIRE CORP: Statement of changes in beneficial ownership of securities