Antkowiak Patrick M.

Related Filers (2)

Ownership (25)

4
Wednesday, 9/6/2023
Aspen Technology, Inc.: Statement of changes in beneficial ownership of securities
4
Tuesday, 9/6/2022
Aspen Technology, Inc.: Statement of changes in beneficial ownership of securities
4
Wednesday, 5/25/2022
Aspen Technology, Inc.: Statement of changes in beneficial ownership of securities
3
Tuesday, 5/17/2022
Aspen Technology, Inc.: Initial statement of beneficial ownership of securities
4
Wednesday, 5/22/2019
NORTHROP GRUMMAN CORP /DE/: Statement of changes in beneficial ownership of securities
4
Friday, 3/1/2019
NORTHROP GRUMMAN CORP /DE/: Statement of changes in beneficial ownership of securities
4
Friday, 2/22/2019
NORTHROP GRUMMAN CORP /DE/: Statement of changes in beneficial ownership of securities
4
Thursday, 2/21/2019
NORTHROP GRUMMAN CORP /DE/: Statement of changes in beneficial ownership of securities
4
Friday, 2/15/2019
NORTHROP GRUMMAN CORP /DE/: Statement of changes in beneficial ownership of securities
4
Wednesday, 9/19/2018
NORTHROP GRUMMAN CORP /DE/: Statement of changes in beneficial ownership of securities
4/A
Monday, 2/26/2018
NORTHROP GRUMMAN CORP /DE/: Statement of changes in beneficial ownership of securities
4
Thursday, 2/22/2018
NORTHROP GRUMMAN CORP /DE/: Statement of changes in beneficial ownership of securities
4
Thursday, 2/15/2018
NORTHROP GRUMMAN CORP /DE/: Statement of changes in beneficial ownership of securities
4
Wednesday, 3/1/2017
NORTHROP GRUMMAN CORP /DE/: Statement of changes in beneficial ownership of securities
4
Friday, 2/24/2017
NORTHROP GRUMMAN CORP /DE/: Statement of changes in beneficial ownership of securities
4
Thursday, 2/23/2017
NORTHROP GRUMMAN CORP /DE/: Statement of changes in beneficial ownership of securities
4
Wednesday, 2/22/2017
NORTHROP GRUMMAN CORP /DE/: Statement of changes in beneficial ownership of securities
4
Thursday, 3/3/2016
NORTHROP GRUMMAN CORP /DE/: Statement of changes in beneficial ownership of securities
4
Tuesday, 2/23/2016
NORTHROP GRUMMAN CORP /DE/: Statement of changes in beneficial ownership of securities
4
Friday, 2/19/2016
NORTHROP GRUMMAN CORP /DE/: Statement of changes in beneficial ownership of securities
4
Thursday, 5/28/2015
NORTHROP GRUMMAN CORP /DE/: Statement of changes in beneficial ownership of securities
4
Monday, 3/9/2015
NORTHROP GRUMMAN CORP /DE/: Statement of changes in beneficial ownership of securities
4
Friday, 2/20/2015
NORTHROP GRUMMAN CORP /DE/: Statement of changes in beneficial ownership of securities
4
Tuesday, 2/17/2015
NORTHROP GRUMMAN CORP /DE/: Statement of changes in beneficial ownership of securities
3
Tuesday, 11/25/2014
NORTHROP GRUMMAN CORP /DE/: Initial statement of beneficial ownership of securities
Show More