L Michael Winkler
Affiliations
- Evp & Chief Operating Officer at U.s. Silica Holdings Inc. (SLCA), 2023-02-14
Insider Trading: Purchases See All
| Company | Symbol | Price | Amount | Relationship | Remaining Holdings | Date | Form 4 |
|---|---|---|---|---|---|---|---|
| SLCA | $1.00 | 50,000 | Officer | 274,184 | 2020-03-23 | Filing | |
| SLCA | $13.98 | 2,000 | Officer | 47,290 | 2018-10-26 | Filing | |
| SLCA | $26.65 | 1,100 | Officer | 13,090 | 2014-12-24 | Filing | |
| SLCA | $14.54 | 1,000 | Officer | 1,000 | 2012-05-11 | Filing |
Insider Trading: Sales See All
| Company | Symbol | Price | Amount | Relationship | Remaining Holdings | Date | Form 4 |
|---|---|---|---|---|---|---|---|
| SLCA | $15.64 | 181,219 | Officer | 217,896 | 2022-08-18 | Filing | |
| SLCA | $6.55 | 6,000 | Officer | 274,755 | 2020-12-10 | Filing | |
| SLCA | $42.00 | 25,297 | Officer | 18,848 | 2016-08-19 | Filing | |
| SLCA | $42.00 | 38,826 | Officer | 18,848 | 2016-08-19 | Filing | |
| SLCA | $42.00 | 112 | Officer | 18,848 | 2016-08-18 | Filing |