23 results
8-K
EX-10.1
SLCA
U.S. Silica Holdings Inc
24 Nov 23
Departure of Directors or Certain Officers
4:15pm
communicating any nuclear safety concern, workplace safety concern, public safety concern, or concern of any sort, to the U.S. Department of Labor or any
8-K
EX-10.1
SLCA
U.S. Silica Holdings Inc
11 Aug 23
U.S. Silica Appoints New Chief Operating Officer
4:31pm
reporting, providing testimony regarding, or otherwise communicating any nuclear safety concern, workplace safety concern, public safety concern, or concern
10-K
21p 6qnw07z
20 Mar 12
Annual report
12:00am
424B4
k4fuk7h j7t
1 Feb 12
Prospectus supplement with pricing info
12:00am