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Nov 12, 2024 01:23PM Form SC 13G/A ASPEN AEROGELS INC Filed by: VANGUARD GROUP INC
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Feb 3, 2023 03:29PM Form SC 13G/A ASPEN AEROGELS INC Filed by: Telemark Asset Management, LLC
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Aug 9, 2019 03:48PM Form SC 13G/A ASPEN AEROGELS INC Filed by: ARIEL INVESTMENTS, LLC
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Feb 14, 2018 01:23PM
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Feb 14, 2017 12:33PM Form SC 13G ASPEN AEROGELS INC Filed by: ARIEL INVESTMENTS, LLC
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Mar 10, 2016 01:18PM
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Feb 12, 2016 08:56AM Form SC 13G/A ASPEN AEROGELS INC Filed by: FMR LLC
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