Oct 1, 2019 04:01PM
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Feb 13, 2019 10:17AM Form SC 13G SemGroup Corp Filed by: TORTOISE CAPITAL ADVISORS, L.L.C.
Feb 8, 2019 07:35AM
Feb 6, 2019 05:38PM
Feb 1, 2019 04:04PM
Apr 3, 2018 04:54PM
Feb 9, 2018 03:00PM
Feb 9, 2018 08:12AM
Feb 6, 2018 09:19AM Form SC 13G/A SemGroup Corp Filed by: IRIDIAN ASSET MANAGEMENT LLC/CT
Feb 2, 2018 04:06PM
Feb 2, 2018 11:13AM
Jan 23, 2018 05:27PM
Jan 19, 2018 06:03AM
Jan 12, 2018 04:32PM
Jul 25, 2017 04:57PM
Apr 17, 2017 11:07AM Form SC 13G/A SemGroup Corp Filed by: IRIDIAN ASSET MANAGEMENT LLC/CT
Feb 13, 2017 06:28AM
Feb 10, 2017 03:53PM
Feb 10, 2017 02:20PM
Feb 2, 2017 08:53AM
Jan 30, 2017 02:38PM
Jan 27, 2017 04:03PM
Jan 27, 2017 06:04AM Form SC 13G/A SemGroup Corp Filed by: BlackRock Inc.
Oct 5, 2016 04:03PM
Jul 6, 2016 11:34AM
Feb 11, 2016 09:14AM
Feb 10, 2016 04:16PM
Feb 8, 2016 12:48PM
Feb 5, 2016 04:11PM
Feb 3, 2016 04:57PM Form SC 13G/A SemGroup Corp Filed by: JENNISON ASSOCIATES LLC
Jan 27, 2016 03:55PM
Jan 26, 2016 12:13PM
Jan 26, 2016 11:23AM
Jul 6, 2015 12:10PM
Feb 17, 2015 03:01PM
Feb 13, 2015 10:55AM
Feb 11, 2015 07:46AM Form SC 13G/A SemGroup Corp Filed by: VANGUARD GROUP INC
Feb 10, 2015 03:23PM
Feb 2, 2015 12:15PM
Jan 29, 2015 09:09AM
Jan 27, 2015 10:32AM
Oct 27, 2011 10:13AM

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