35 filings
Page 2 of 2
4
m62rb7o
3 Apr 18
U.S. SILICA / MICHAEL L WINKLER ownership change
12:00am
4
hb8uj qnd
14 Feb 18
U.S. SILICA / MICHAEL L WINKLER ownership change
12:00am
4
ywkya1khv
5 Jun 17
U.S. SILICA / MICHAEL L WINKLER ownership change
12:00am
4
qxtrmdxe3q bsqa4nfpm
4 Apr 17
U.S. SILICA / MICHAEL L WINKLER ownership change
12:00am
4
c7h2slw
14 Feb 17
U.S. SILICA / MICHAEL L WINKLER ownership change
12:00am
4
me23i5wseh6yiw
23 Aug 16
U.S. SILICA / MICHAEL L WINKLER ownership change
12:00am
4
2d89g5by2fn1g0kwkg
22 Aug 16
U.S. SILICA / MICHAEL L WINKLER ownership change
12:00am
4
183 gyxbvt8b
3 Jun 16
U.S. SILICA / MICHAEL L WINKLER ownership change
12:00am
4
bjyootch7
9 May 16
U.S. SILICA / MICHAEL L WINKLER ownership change
12:00am
4
5v9 2f4bodi4dfu
4 Apr 16
U.S. SILICA / MICHAEL L WINKLER ownership change
12:00am
4
06ld2inlm8a21e8d0d4e
15 Mar 16
U.S. SILICA / MICHAEL L WINKLER ownership change
12:00am
4
b79kn4gn 43xd4
16 Feb 16
U.S. SILICA / MICHAEL L WINKLER ownership change
12:00am
4
igl83 bszb0a3
3 Jun 15
U.S. SILICA / MICHAEL L WINKLER ownership change
12:00am
4
f9q4 o5ef
8 May 15
U.S. SILICA / MICHAEL L WINKLER ownership change
12:00am
4
iazablm
17 Mar 15
U.S. SILICA / MICHAEL L WINKLER ownership change
12:00am