166 filings
Page 5 of 9
DEFA14A
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26 Apr 19
Additional proxy soliciting materials
4:08pm
8-K
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14 Mar 19
Fourth Quarter and Full Year 2018 Operational and Financial Results
4:13pm
8-K
rbv59xt2w5ndm
29 Jan 19
Departure of Directors or Certain Officers
5:09pm
8-K
qsb9oth9sxhz7e5nqsa
28 Dec 18
Entry into a Material Definitive Agreement
4:14pm
CT ORDER
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13 Nov 18
Confidential treatment order
3:13pm
8-K
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31 Oct 18
Third Quarter 2018 Operational and Financial Results
5:09pm
8-K
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25 Oct 18
Entry into a Material Definitive Agreement
4:35pm
CT ORDER
lztj3uxjex0fezdbf2tj
25 Oct 18
Confidential treatment order
12:00am
8-K
b7drfao32mqqe0jvr9j
4 Sep 18
Regulation FD Disclosure
12:00am
8-K
87jwefj 7slsqsu87
6 Aug 18
Second Quarter 2018 Operational and Financial Results
4:35pm
8-K
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13 Jul 18
Entry into a Material Definitive Agreement
4:48pm
8-K
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2 Jul 18
Mammoth Energy Services, Inc. Announces Pricing of Secondary Common Stock Offering
4:33pm
424B5
kco1obny
28 Jun 18
Prospectus supplement for primary offering
5:32pm
424B5
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26 Jun 18
Prospectus supplement for primary offering
5:24pm
EFFECT
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20 Jun 18
Notice of effectiveness
12:15am
CORRESP
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15 Jun 18
Correspondence with SEC
12:00am