Barrie David S

Related Filers (10)

Ownership (21)

4
Friday, 1/7/2022
Perma-Pipe International Holdings, Inc.: Statement of changes in beneficial ownership of securities
4
Thursday, 11/18/2021
Perma-Pipe International Holdings, Inc.: Statement of changes in beneficial ownership of securities
4
Thursday, 8/19/2021
Perma-Pipe International Holdings, Inc.: Statement of changes in beneficial ownership of securities
4/A
Tuesday, 6/15/2021
Perma-Pipe International Holdings, Inc.: Statement of changes in beneficial ownership of securities
4
Tuesday, 6/15/2021
Perma-Pipe International Holdings, Inc.: Statement of changes in beneficial ownership of securities
4
Monday, 6/15/2020
Perma-Pipe International Holdings, Inc.: Statement of changes in beneficial ownership of securities
4
Friday, 6/28/2019
Perma-Pipe International Holdings, Inc.: Statement of changes in beneficial ownership of securities
4
Monday, 6/18/2018
Perma-Pipe International Holdings, Inc.: Statement of changes in beneficial ownership of securities
4/A
Monday, 6/18/2018
Perma-Pipe International Holdings, Inc.: Statement of changes in beneficial ownership of securities
4
Monday, 6/26/2017
Perma-Pipe International Holdings, Inc.: Statement of changes in beneficial ownership of securities
4
Wednesday, 6/29/2016
MFRI INC: Statement of changes in beneficial ownership of securities
4
Wednesday, 4/20/2016
MFRI INC: Statement of changes in beneficial ownership of securities
4
Tuesday, 6/23/2015
MFRI INC: Statement of changes in beneficial ownership of securities
4
Thursday, 6/19/2014
MFRI INC: Statement of changes in beneficial ownership of securities
4
Monday, 2/3/2014
MFRI INC: Statement of changes in beneficial ownership of securities
4/A
Monday, 11/4/2013
MFRI INC: Statement of changes in beneficial ownership of securities
4
Friday, 11/1/2013
MFRI INC: Statement of changes in beneficial ownership of securities
4
Friday, 8/2/2013
MFRI INC: Statement of changes in beneficial ownership of securities
4
Monday, 6/24/2013
MFRI INC: Statement of changes in beneficial ownership of securities
4
Tuesday, 5/28/2013
MFRI INC: Statement of changes in beneficial ownership of securities
3
Wednesday, 11/7/2012
MFRI INC: Initial statement of beneficial ownership of securities
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