187 filings
Page 5 of 10
8-K
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5 Aug 21
Board Declares Special Dividend of $3.20 per share
6:16am
8-K/A
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4 Aug 21
Departure of Directors or Certain Officers
4:13pm
8-K
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3 Aug 21
Termination of a Material Definitive Agreement
4:08pm
8-K
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23 Jul 21
PQ Group Holdings Announces Date and Details for Corporate Name Change to Ecovyst Inc. and Second Quarter 2021 Earnings Conference Call
6:15am
8-K
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15 Jul 21
Entry into a Material Definitive Agreement
4:22pm
8-K
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30 Jun 21
Entry into a Material Definitive Agreement
4:06pm
8-K
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11 Jun 21
Entry into a Material Definitive Agreement
4:21pm
SD
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28 May 21
Conflict minerals disclosure
7:31am
NT 10-Q
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11 May 21
Notice of late quarterly filing
4:15pm
8-K
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6 May 21
Results of Operations and Financial Condition
6:21am
8-K
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30 Apr 21
Submission of Matters to a Vote of Security Holders
6:31am
424B7
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29 Apr 21
Prospectus with selling stockholder info
4:36pm
8-K
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29 Apr 21
Entry into a Material Definitive Agreement
4:15pm
424B7
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26 Apr 21
Prospectus with selling stockholder info
4:56pm
S-3ASR
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26 Apr 21
Automatic shelf registration
4:26pm
8-K
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26 Apr 21
Results of Operations and Financial Condition
4:13pm
8-K
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8 Apr 21
Regulation FD Disclosure
4:48pm
8-K
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23 Mar 21
PQ Group Holdings Announces Planned Chief Financial Officer Transition
4:33pm