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May 7, 2025 10:02AM Form SCHEDULE 13G/A CLEAN HARBORS INC Filed by: WELLINGTON MANAGEMENT GROUP LLP
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Feb 9, 2023 11:18AM Form SC 13G/A CLEAN HARBORS INC Filed by: VANGUARD GROUP INC
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Feb 10, 2021 10:48AM Form SC 13G/A CLEAN HARBORS INC Filed by: VANGUARD GROUP INC
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Feb 14, 2019 02:22PM Form SC 13G CLEAN HARBORS (MEXICO), Filed by: SOUTHERNSUN ASSET MANAGEMENT, LLC
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Feb 9, 2018 06:06AM Form SC 13G/A CLEAN HARBORS INC Filed by: VANGUARD GROUP INC
Feb 8, 2018 11:58AM
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Feb 14, 2017 09:51AM
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Feb 12, 2016 01:04PM Form SC 13G CLEAN HARBORS INC Filed by: SOUTHERNSUN ASSET MANAGEMENT, LLC
Feb 11, 2016 11:13AM
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Feb 11, 2015 12:09PM Form SC 13G/A CLEAN HARBORS INC Filed by: TimesSquare Capital Management, LLC
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