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Feb 9, 2023 11:10AM Form SC 13G/A ANSYS INC Filed by: VANGUARD GROUP INC
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Jan 29, 2021 06:03AM Form SC 13G/A ANSYS INC Filed by: BlackRock Inc.
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Feb 15, 2019 06:11AM
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Feb 14, 2018 01:55PM Form SC 13G/A ANSYS INC Filed by: EATON VANCE MANAGEMENT
Feb 13, 2018 09:37AM
Feb 12, 2018 09:40AM
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Sep 8, 2017 11:35AM
Feb 15, 2017 03:49PM
Feb 14, 2017 10:46AM
Feb 9, 2017 12:31PM Form SC 13G/A ANSYS INC Filed by: VANGUARD GROUP INC
Feb 8, 2017 03:43PM
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Dec 9, 2016 12:43PM
Feb 12, 2016 08:57AM
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Feb 13, 2015 10:05AM Form SC 13G/A ANSYS INC Filed by: FMR LLC
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